gm hei module keeps burning out

Basically, things work great until one day the car wont start. Hello,-Put in a new 350 crate motor in 2005. Chevrolet Brake Switch Problems and Solutions, Reduced Engine Power Problem Fixed on FixMyOldRide.com, Top 5 Maintenance Items Your Car Needs at 100k Miles. I've put new Heat Sink Paste (white) on all of them, & not the clear grease/paste that comes in the box. gladly trade you my new hei with msd in cap coil and module!i dont mind mounting stuff on the 86's firewall,or there is that space under the dash where they decided to stuff a computer instead of putting a glovebox like they should have! Wiki User Answered 2015-07-14 16:47:10. I know a T-10 Chevy pick upis 4-wheel drive and S-10 is a 2 wheel drive, what is a R-10 pick up? Have replaced the distributor, cap, rotor and ICM. Send Private Topic View Profile. Review 5 maintenance items your car needs at 100k miles. 05-05-20 03:35 PM - Post# 2792889 I have a 65 C10 that I dropped a 350 out of a 74 bonanza in. Can Anyone Tell Me Why My Distributor Coil Keeps Burning Out. It came with a new HEI distributor, pretty much stock unit, think it was made in China.-It ran great for about a year, then wouldn't start. Most of the original modules installed in Chevrolet distributors from the mid-80s through the mid-90s shared the same solid-state design. David Vizard did some testing on the old-style V8 HEI mechanical advance distributors, and in Chevy Small Blocks on a Budget reported no problems with the magnetic pickups out past 6000 rpm. These old distributors let air in through the bottom and vent it through the top of the distributor cap. By mid December that truck had over 100k miles on it already. change your distributor and you should have trouble free driving for a while. Did you just replace your burned out ignition coil to have your new one burn out too? Only mine to 05 Monte Carlo with a 3.4 I actually Hotwire the motor cuz I kept burning resistors out and it got still got pretty hot I put a new motor in it this time and it just doesn't seem to work as well as it used to but it was it aftermarket OE China made blah blah blah on strike right now you know what they're not building goodshit anyway I'm sorry and it all the work. The mileage between failures is random: 3k, 5K, 8K. Asked by Wiki User. I have a 1884 chevy pick-up with a 305 engine. Buy one of these and you will have no more issues. When the second generation modules go bad the vehicle starts up and runs good until it gets hot. make sure that your coil has the little ground strap installed under the dust cover. Come join the discussion about restoration, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more! There are NO voltage "regulators" or limiters in OEM GM modules, they blow up just the same as aftermarket ones when the in cap, epoxy filled junker coil goes haywire. The first time I noticed something was not right is when I drove the car continuously for a period of 2 or more hours, which is when the engine just died on the HWY. General Motors designed them to last for the life of the vehicle. ever since I did the engine swap, 1,670 miles ago... ive gone through 4 ignition modules. The same can be said for the Chevrolet Blazer or S-10 pickup truck that carries the 4.3 L V-6. $45.28 Standard Motor Products LX301 Module. The mileage between failures is random: 3k, 5K, 8K. Does anyone have an idea as to why the distributor keeps going through coils? I'm running a 355 small block,tpis mini ram intake, MSD 6 ignition box, stock gm HEI distributer ( 1986 ) MSD coil, ive checked all wires,grounds,searched for anything obvious...NOTHING. Joined: Jun 16, 2013 Location: los angeles. HEI modules more so than not, ARE NOT usually the cause of HEI coil failures, just the opposite, coils fail modules. You will need to remove it and take it to an auto … Post: HEI module keeps burning out (Topic#360813) NickG65C10 Newbie Posts: 1 Reg: 05-05-20. Ignition Coil Replacement: $116.03 - $516.36: Get a Quote: Jeff Engstrom. This item ACDelco D1906 Professional Ignition Control Module. They have more electronic dwell than your stock, so the coil saturates longer and produces a more intense spark. 63 Nova Wagon 64 Nova 400 series 4 door 1977 Nova SOLD 01/15 1972 Chevelle Wagon Save Share. At idle on a V-8, the dwell with a Delco module should be between 10 and 15 degrees. I now have 30K on the motor and it runs great except for one problem: The module in the HEI distributor keeps failing. Replace your stock HEI module with Davis Unified Ignition Dyna-modules for a crisper, smoother running engine. VerticalScope Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada. This high resistance causes a very high amount of voltage to be generated from your ignition coil's … I pull the module out and test it: Yep, cooked. I have now put in 8! On a technical note, make sure you apply dielectric grease to the heat sink before you install the new part. We start on covering vehicles from the mid-80s and progress through the 2005 model year. HEI Modules: 1. Many aftermarket modules accomplish dwell control by measuring the amperage to the coil and cut the dwell to limit it to a preset amount. Tags: Anyone, Burning, Coil, Distributor, Keeps, Tell. Ignition Coil Replacement: $116.03 - $516.36: Get a Quote: Jeff Engstrom. Recommended Services. I had the intake gaskets replaced and have had this trouble ever since. It fired up one time, and I again have no fire. 185 Posts . However, if you’re Ford fan we created a separate article that focuses on the popular model Ford ignition module failure. Discussion Starter • #1 • Apr 27, 2004. The original equipment GM ignition control module can go a long way before it leaves you high and dry. These were all used because Im not going to put in a new one until I find out … Check the ignition coil for a spark. The cruise control light comes on but the system will not set or hold speed. Subject: GM MODULE KEEPS BURNING OUT Category: Miscellaneous Asked by: valkatejo-ga List Price: $2.50: Posted: 12 Nov 2004 19:51 PST Expires: 12 Dec 2004 19:51 PST Question ID: 428278 HELLO I HAVE A 350 CHEVY WITH HEI THE MODULE KEEPS BURNING OUT FOR SOME REASON WITH CAR OFF AND ING LOCKED KEY OUT ANY HELP OUT THERE THANKS MIKE: Answer : There is no … As far as I can tell the old 4-pin GM HEI modules were … … HEI Modules: 1. Send Private Topic View Profile. On the V-6 engines like the 3100 and the 3800 series from General Motors, both used this early form of direct ignition. Stations that you can normally here clearly will now be very difficult to make out and will cut in and out sharply. Did you just replace your burned out ignition coil to have your new one burn out too? I have now put in 8! I had a friend with a similar problem redently, but instead of the ignition module and the coil, his car sent to much power to all his lights and he burned out bulbs weekly- on a car just a couple of years old. General Motors and other car companies thought that you should get rid of that car at the 200,000 mile mark. HEI keeps burning through coils? Ignition module failure is no joke because it often leaves you stranded. In a GM car or truck with a V8 engine, the ignition control module (also known as the ICM) is hiding under the distributor cap. (function(){var cx='002561099840714827093:n-k9zqoogda';var gcse=document.createElement('script');gcse.type='text/javascript';gcse.async=true;gcse.src='https://cse.google.com/cse.js?cx='+cx;var s=document.getElementsByTagName('script')[0];s.parentNode.insertBefore(gcse,s);})(); Common Chevrolet brake switch problems cause issues with the cruise control. H.E.I. Make sure there is the correct voltage going to the dist. I have replaced the cap, coil, and alternator. As these vehicles started crossing the 15 to 20-year-old barrier the control module started to fail. The last three modules are Borg Warner(Life Time Warranty). Unfortunately, there is no test that can be performed with an ohm meter on this part. Answer: Your ignition control module manages your … Can you tell why my control module keeps failing? 13 years of experience. Examine the wires at the cap, rotor, and spark plugs. One day it came in on a tow truck, no spark. The Dwell control circuit ensures, long consistent coil charging. Page 1 of 2 1 2 Next > Jun 17, 2013 #1. beastlyb New Member. If your parts guy doesn't know what that is then tell him you need an ignition module for a '78 Camaro with a 350. Find Davis Unified Ignition 000222 Davis Unified Ignition Dyna-Modules and get Free Shipping on Orders Over $99 at Summit Racing! “High performance” modules have a higher amperage cut-off point to “optimize high RPM performance”. A wider gap may give you more spark/flame but it also puts more load on the module not the coil. B ... but a bad coil can take out a module. 81 Buick Century 4.3 engine . Replaced ignition module because ign. I have a 1884 chevy pick-up with a 305 engine. Here is why!The leading cause of premature failure of an ignition coil is due to a worn or bad spark plug ignition cable.A bad spark plug ignition cable will have a much higher than normal resistance. #D-57-22) Shop Now The remaining electronic part that would keep the distributor from firing is the module. 9 Posts . Stock carb and all emissions gear present - passes California emissions. I pull the module out and test it: Yep, cooked. A friend gave me an HEI I had laying around and I put it in 3 years ago. I was going thru modules a lot. By 1978, it had a five-pin unit. By 1978, it had a five-pin unit. Any mid-'80s Chevy V-8 pickup with the "Electronic Spark Control" plate on the tailgate has this system. However, you get one telltale sign that signals the onset of direct ignition problems. The possible car repairs range from a loose ground to failure of the TPS and throttle actuator assembly. H.E.I. He did complain about the GM HEI switching modules though. They have more electronic dwell than your stock, so the coil saturates longer and produces a more intense spark. (adsbygoogle=window.adsbygoogle||[]).push({}); The original equipment GM ignition control module can go a long way before it leaves you high and dry. I'm still running on it. Could you guys explain what might be knocking out my module inside my Hei vacuum advance distributor? This a late 70's early 80's Large Cap HEI SBC with 4 pin Ignition Control Module. Another neat GM/Chevy pickup item that can be paired with the HEI is the stand-alone detonation sensor. IIRC olds went as large as .080 but I may be mistaken. gladly trade you my new hei with msd in cap coil and module!i dont mind mounting stuff on the 86's firewall,or there is that space under the dash where they decided to stuff a computer instead of putting a glovebox like they should have! And then check to see that you have 14vdc at the coil wire while the car is running. 12/12. Once the car starts again, the static will resume. I keep burning out ignition modules. I had a problem and it just kept getting worse. Why would you keep blowing out ignition modules in a Chevy R-10 pickup? Chevy trucks, GMC trucks, or any General Motors vehicle with this type of eight-cylinder engine will be the same.If you drive a different vehicle, the process will be very similar. Replace your stock HEI module with Davis Unified Ignition Dyna-modules for a crisper, smoother running engine. You can get one out of a computer you dont … When mounting the GM 4-pin HEI module, always fasten it with dielectric, thermal or heat sink grease/paste on a clean, flat aluminum plate with plenty of fresh air circulation to dissipate the heat while in operation. All performance modules come with a high-heat-transfer white grease that conducts heat away from the module to help keep it cool. The search results open in a convenient overlay. Join the discussion. This is located inside the distributor, and has the green and white wires from the pick up attached on one end, and a terminal block on the other. I've burned up three ignition modules (HEI) in the last 30 miles!!! Modules can go bad from old. I have the same problem. Seems to be after cold start on 60F or colder days. Some popular vehicles with high sales figures carried these types of ignition modules. I've received some off brands made in China that didn't work right out of the box or failed within a couple of weeks. 12, 22, 32 with SES light. An important list for those with high mileage cars and an unknown maintenance history. Sidebar: In some cases the Vortec plastic distributor fails before the ignition module. 13 years of experience. In the late summer of 72 the old truck (one ton cab & chassis Chevy) was replaced with a brand 73 model year truck with a 454 and the new hei ignition system (first new Chevy truck with hei in our area). User Info. Another code found set in memory with an ignition system malfunction is the P0336. Re: Hei module keeps burning out « Reply #4 on: September 24, 2019, 12:59 PM » OPPS Petroleum Jelly is an insulator Thermal paste is specified for a reason That may be why you keep losing them Clean mounting area with Carb or brake cleaner and install a new one With thermal paste It is available at the counter at most supply houses ! Now they would receive data from a crankshaft and camshaft position sensor and use this information to fire each plug directly.Hence, direct ignition became popular. It now has 248,000 on it. Home ; Forum; Shop; Register; Login . I had the intake gaskets replaced and have had this trouble ever since. In the late 80s and early 90s people were putting about 15,000 miles a year on their automobiles in extreme circumstances. Retrieved engine codes. I need help. Copyright © 2017-2021 Claimed By Mark Gittelman LLC. User Info. It stops working without warning. A forum community dedicated to hot rod owners and enthusiasts. My truck keeps burning out ignition coils in the Sams place and I checked the spark plugs and that's not it. Seven and eight-pin modules were more a computer-controlled element that came around in the 1980s. ! As the engine speed is raised, the dwell … ICM only lasts about a day and then the next morning same problem. When I say high and dry I'm talking about a vehicle that cranks around, but will not fire up. MSD #8366 GM HEI Computer Controlled Distributor AC Delco D1943A GM Original Equipment Ignition Control Module which replaced the MSD module 250 amp MechMan Alternator 2 Odyssey batteries installed in trunk wired in parallel I wired the car with the Infinity Box Intelligent Multiplex system, all wiring is done correctly. Continue with Facebook. Three coil packs sit on top of the ignition module. Issue did not exist before the rebuild. 4.6 out of 5 stars 7. HEI's need 12 volts. Dyna-modules are … Check the dwell on an HEI module to confirm the circuit is evoking the longer (expanding) dwell time as the engine speed is increased. I have a 1950 GMC truck that I restored with a 350 small block v8 with a stock set-up. My car has an automatic transmission. Today, however, the newer MSD coil went bad (engine cranked, no spark). Also make sure that the vent screen and the distributor isn’t covered with corrosion. ignition module keeps burning out. Automotive Mechanic. This cycle happens over and over again until you replace the component. _____ 68 Chevelle flat top 406, AFR 195's, XR286R, RPM AirGap 750 Holley … E.O. Since November 2014 I have replaced it three times. the ignition module to my understanding,just controls the duration of … Logged rush1. Heat sink: Dont have an image of one that is seperate but this is a must to pull heat away from the module and keep it from over heating. I got mine off an early 90's firebird. Mounting holes in the module body must be connected to engine/chassis ground (battery negative (–) post). For a better experience, please enable JavaScript in your browser before proceeding. The current control circuit protects against coil over heating. I have a 1987 half ton Chevy Suburban 4X4 with a stock 350 (my beloved "Ghetto Winnebago"). I'm going to try a GM module this weekend the ones in the past have been EChlin that may very well be the issue . I think the … Eric . As you can see it has 4 pins labeled W, G, B, and C. G is a 3/16" male quick disconnect the rest are 1/4". They used it on about 10 years worth of vehicles. The engine was replaced at a GM dealer at 187,000. You can get them from any junk yard off lots of different gm cars. Re: Burning up coils and modules! The mounting surface must act as a heat sink to … Why do I keep burning out ignition control modules on my 1993 Chey K1500 Sub 4WD? Review the common causes of the reduced engine power warning message. The complaint is the engine cranks normally, but does not start. In the early 90s General Motors started to do away with the distributor, cap and rotor we all loved since the turn-of-the-century. Usually it was cap and rotor, already replaced that. Eric . Most of the original modules installed in Chevrolet distributors from the mid-80s through the mid-90s shared the same solid-state design. I keep burning out ignition modules. GMPP HEI . Question: My 2002 Buick LeSabre has 98,887 miles on it. It's been a LONG time. The solid state electronics provide high coil out put and superior reliability. worn plugs or wires, how old are yours? HEI keeps burning through coils? Hello, I hope someone can help me out with this major issue that is happening with my MSD ignition system. 1 - 12 of 12 Posts. I think there were reasons for the complaint: 2. We call it the jumping tachometer needle issue. HEI in cap coils are epoxy filled, and do not leach heat created in their cores outward, they hold the heat in the center of the coil, and fail. I'm using a stock cap/coil, and have used assorted HEI modules. Engine is a 455 with KRE 290 alum heads and other associated goodies. However, the pages from This Website are listed below 4 ads at the top. At that point it stalls out and won’t restart. Messages: 8 Likes Received: 0. The symptoms became wide range and included a no start condition as with the early ignition control module failure. Why would a 1985 Chevy 305 keep burning out its ignition modules? Since November 2014 I have replaced it three times. As the problem worsens these cars set random misfire codes in the P0300 range. Compare with similar items. The cause of an ignition control module failure is often associated with age and damage from heat buildup.The correction for this issue becomes the replacement of the failed component. Just to name a few, the Chevrolet Camaro Sport Coupe and all the sport-utility vehicles like the Tahoe, Suburban and Blazer. Here in this brief article we'll talk about three popular generations of control modules known for a high failure rate. What's interesting about this common ignition module failure is the way it goes out. When I say high and dry I'm talking about a vehicle that cranks around, but will not fire up. 4.6 out of 5 stars 36. Generally, stock HEI modules are current-limited to about 4 amps. Unfortunately, the definition of this term changed throughout the decades. Intended for street/strip applications; 6.9 Amp module; 67% more energy with a 45% faster spark breakdown over stock HEI distributors; Enables larger plug gaps for increased flame kernal and more efficient combustion; Legal in all 50 states and Canada (C.A.R.B. I think there were reasons for the complaint: 2. The HEI was rebuilt by "suntuned" many moons ago, it works great. I'll replace the module, it - Chevrolet 1994 S-10 Blazer question I still run an MSD, but I keep the ignition module mounted inside the distributor so I can wire it back up and get the car running again if the MSD dies again. Jump to Latest Follow ... After swapping the 350 in, the original coil went bad, so I replaced the cap, coil, rotor, and module with MSD stuff. It fired up one time, and I again have no fire. Why do I keep burning out ignition control modules on my 1993 Chey K1500 Sub 4WD? This can … Hello There, I would suggest checking the ignition control module. Continue with … This module fits most GM Remote Mount Coil HEI distributors for V8 engines. Heat is the biggest enemy of the HEI module. Chevy it don't … The first HEI distributor was a new pro-comp! My car has 25000 miles. Its ignition control module is failing. JUNK! 454 with HEI ign module keeps failing. The shucks o'rielly P# E46P. For this reason I a lean toward parts manufactured in North America or Mexico.Another key factor of the durability of the replacement parts is applying dielectric grease to the heat sink. To do this, connect a tune-up tach and dwell meter to the "TACH" terminal on the distributor cap and then start the engine. Ive replaced about 5 the last few days. My car has 25000 miles. I have a 1950 GMC truck that I restored with a 350 small block v8 with a stock set-up. Can you tell why my control module keeps failing? Several months after the engine rebuild, it began dying. My car has an automatic transmission. The actual “Genuine GM” module controls the dwell by monitoring the signal from the pickup with an R/C circuit. HEI module by bigredlaguna on Thu Aug 03, 2017 10:40 pm During the course of building my daughter's car, I have had the worst luck with the ignition modules crapping out on me. However the 4.3 L V-6 and the 5.7 L V-8 engines that utilize the module lasted longer than many thought possible. Find Davis Unified Ignition 000222 Davis Unified Ignition Dyna-Modules and get Free Shipping on Orders Over $99 at Summit Racing! What would cause the module to keep going out? Each coil pack fires two spark plugs at precisely the right moment. Now these automobiles are 15 to 20 years old with more than 300,000 miles on them in some cases. Our machanics spent hours trying to figure out how the hei … Question: My 2002 Buick LeSabre has 98,887 miles on it. This article focuses on General Motors automobiles from the last 30 years.It even covers ignition module failure on the early DIS (Direct Ignition System) found on some of the most popular GM V-6 engines ever built. An HEI distributor that has a worn pick-up coil or corroded magnetic poles will produce a weak spark, with insufficient voltage to ignite the combustion gases. Originally, the HEI system was fitted with a four-pin module. Hello There, I would suggest checking the ignition control … With new … Originally, the HEI system was fitted with a four-pin module. Top Answer . 4,548 Posts #2 • Jul 13, 2005 (Edited) Check the voltage going to the distributer. 4.6 out of 5 stars 54. Just carry a couple wires with the female spade connectors on them to reattach the module to the cap - it beats waiting for a tow truck. In 1996 General Motors redesign the ignition module discussed above. It stops working without warning. We have more on that below. Post: HEI module keeps burning out (Topic#360813) NickG65C10 Newbie Posts: 1 Reg: 05-05-20. Retrieved engine codes. You can buy a 4-pin HEI module at any auto parts store. 05-05-20 03:35 PM - Post# 2792889 I have a 65 C10 that I dropped a 350 out of a 74 bonanza in. If you had the small processor, sensor and wiring for the knock sensor, you could install it and have detonation protection. As mentioned above, on the previous generation, you’d come out to the vehicle and it wouldn’t start. He did complain about the GM HEI switching modules though. if you had to replace the ignition module inside the distributor more than once in a couple of months, you need to check play in the distributor shaft,( the bushings goes bad) the constant change when the distributor spins increases the resistance in the module thus burning it out. An HEI distributor is unique because it contains the coil and ignition controls underneath the cap instead of as separate units. Dear rearroo3-- I think the alternator on your 2003 Chevrolet Cavalier might be sending out to much power to these components. They designed these ignition control modules and GM V6 ignition coils to last for the life of the vehicle. ICM only lasts about a day and then the next morning same problem. JavaScript is disabled. This is a crank sensor code that sets when the crankshaft position sensor reports data out of range to the vehicles main computer or control module. After replacing my share of failed ignition control modules on a wide range of vehicles I'm learning that spending a little more money for a brand-name part might actually be worth it. 3 Posts . Seven and eight-pin modules were more a computer-controlled element that came around in the 1980s. If the car runs but has timing problems, use a tester light and wrench to adjust the spark plug timing according to the … I know heat for one. 86 camaro,383,topline vortecs,scat crank,wiseco forged 9.5:1,6"scat rods,comp xs282s,performer rpm,750 proform … I now have 30K on the motor and it runs great except for one problem: The module in the HEI distributor keeps failing. $52.95 MSD Ignition 5596 Street Fire Distributor for HEI Module Engine. I bypassed the regulator on the firewall as the alternator has one in it. This can be seen by a sporadic miss when the engine pulls under a heavy load or the vehicle has to climb a hill or steep mountain pass. ... though! Answer: Your ignition control module manages your V-6 LeSabre's three ignition coils. Jump to Latest Follow 1 - 12 of 12 Posts. These engines need ignition modules before they head to the junkyard. Most people ignored these ignition module failure symptoms and continued to drive the automobile. If the module is bad, then I would seriously think the coil(s) were responsible for the module going out. GM decided they didn't need all those moving parts. Yellow Sparking If you suspect the condenser is going bad, you … '84 full-size Chevy Blazer with 350 engine. In a strange twist of fate coupled with economic factors this standard became largely ignored by the general population. Better GM performance modules increase this current to around 5.5 amps. Toggle navigation. However, they now call them Vortec motors. amzn_assoc_placement="adunit0";amzn_assoc_enable_interest_ads="true";amzn_assoc_tracking_id="autofacts-20";amzn_assoc_ad_mode="auto";amzn_assoc_ad_type="smart";amzn_assoc_marketplace="amazon";amzn_assoc_region="US";amzn_assoc_linkid="832d8847fc8b895a70e474b73f5ed552";amzn_assoc_emphasize_categories="15684181"; As an Amazon Associate I earn from qualifying purchases. I'll replace the module, it - Chevrolet 1994 S-10 Blazer question Recommended Services. I've been through at least 4-5 modules over the past 5 years. Discussion Starter • #1 • Mar 9, 2004. On vehicles with factory installed tachometers the needle jumps or moves intermittently. The system worked extremely well and held up pretty good. A regular 4 prong HEI module will interchange into that body, and … The module is expensive and replacing it is a laborious process. I also just replaced the distributor and all parts involved. I just put a new Modules, … 06-30-06 01:56 PM - Post# 961153 In response to motorman 15 volts is too many volts. BTW there were only a few years GM ran a 60 gap on the plugs and it was those years they had a lot of modules go bad. ignition module keeps burning out. Although these replacement modules come with a small tube of dielectric grease you might want to opt for your own supply. High secondary resistance (or an open-circuit condition) will fry an HEI module. My truck keeps burning out ignition coils in the Sams place and I checked the spark plugs and that's not it. Since the sparking only happens when the engine is turned on, the radio will work normally when the engine is off and only the battery is functioning. ever since i got my camaro a few years back i been refering to this site for answers, some great info … The one pictured is a Car Quest #21040 and cost me $17.77. These made in the USA parts proudly show the ACDelco or GM symbol engraved on the module. (That is probably the kiss of death, I'll bet it goes bad this weekend just for saying it). It's been that way for about six months (maybe longer). good luck I would rather apply too much of a high quality dielectric grease then not enough. ONE … ''77 350 CID w/HEI ignition. You have to get the two connectors that go to it. If these become clogged corrosion and heat buildup can cook the new module. With that said, these parts didn't hold up as well or as long as the ignition modules from the previous generation.These parts found their way into the same V-8 and V-6 engines mentioned above. Here is why!The leading cause of premature failure of an ignition coil is due to a worn or bad spark plug ignition cable.A bad spark plug ignition cable will have a much higher than normal resistance. On yours I think you should have about 8 volts not 12. This is a GM hei coil. Have replaced the distributor, cap, rotor and ICM. Recent rebuild with stock parts except for Edlebrock intake. After the engine cools down the vehicle might restart and run fine until it gets hot again. $22.77 Next page. It's not uncommon the find a Chevrolet Silverado 1500 pickup from the early 90s with more than 300,000 miles on the 5.7 L V-8 engine. ignition module keeps burning out/ no start Discussion in 'Troubleshooting & Diagnosis' started by beastlyb, Jun 17, 2013. David Vizard did some testing on the old-style V8 HEI mechanical advance distributors, and in Chevy Small Blocks on a Budget reported no problems with the magnetic pickups out past 6000 rpm. See Answer. This high performance HEI module provides your plugs with more spark over the stock module. Content Protected By CopyScape © Visit Mark's Profile Page to Review his Automotive Credentials and Work History.

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