Full Size K5 (1969-1991) GMT415 (1992-1994) Tech Discuss any and all full size K5 general tech topics here.

Random engine failure while driving

Old 08-29-2015, 07:40 AM
Starting Member
Thread Starter
Join Date: Aug 2015
Posts: 1
Bigredk5 is on a distinguished road
Default Random engine failure while driving

So I was driving down the road in my 1986 k5 blazer with the 305 and all of a sudden the engine quit. So I pushed in the clutch and tried to start it.... No luck so I pulled over and had to get towed home. We checked the ECM and it has power coming out of it so I'm assuming it could be the entire distributor assembly or maybe just cap and rotor.. Amy ideas of why this happened or what else it may be? Engine turns over but won't fire
Old 11-20-2015, 08:27 AM
Toocute350's Avatar
Junior Member
Join Date: Oct 2015
Location: Louisiana
Posts: 322
Toocute350 is on a distinguished road

Usually these model chevy`s have problem`s with the ECM.When I was younger my father had an 1982 chevy silverado with the 305 in her.One night we where driving back to his house(on a cold a** central louisiana nite)all of sudden the engine died.He tried to start it, but she wouldn`t fire up.So he had to call his brother up to pull us back home.Next morning I changed out the ECM, it started right up.If you still have the original distributor?It may have failed.The distributors don`t last forever.If I where you.I would start by changing out the ECM.If you don`t have a P.o. Box address, look up the guys at "Summit Racing.com" Don`t buy the G.M. brand ECM.They are over priced plus they don`t last.Look at the( Accel,Mallory) brand ECM`s.These aren`t cheap, but they last alot longer than compared to the cheaply made G.M., brand.While your at it..Change out the cap and rotor if you`ve haven`t done it already.What about the spark plugs,spark plug wires?When`s the last time you`ve changed these? If you want a great spark plug, look @ the "Torque master" Sparkplugs @ Extreme spark.com.I`ve owned a set on my 81 chevy malibu for 11yrs. before I sold her.No worries about regapping these plugs.They are pricey..$11.00 a piece plus $9.00 flat fee shipping.Trust me on this one..These plugs are well worth the investment.In fact I have a set on my Blazer as we speak. P.S. The reason why I asked about if you have a p.o. box is because summit doesn`t ship to p.o.boxes
Old 11-21-2015, 09:42 AM
abig84's Avatar
BF Veteran
Join Date: Aug 2009
Location: munster indiana
Posts: 3,426
abig84 will become famous soon enoughabig84 will become famous soon enough

i had a 84 years ago that kept chewing up ignition modules, that little half moon looking thing under the distributor cap.about once every 3 months the truck would just randomly die while driving it, i kept a few in the glove box so i could change it on the side of the road, after likethe 4th time i finally noticed one of the coil wires was stripped and was arching off to ground causing the problem.
Related Topics
Thread Starter
Last Post
1st Gen S-series (1983-1994) Tech
12-12-2014 03:43 PM
Full Size K5 (1969-1991) GMT415 (1992-1994) Tech
03-02-2009 12:26 PM
1st Gen S-series (1983-1994) Tech
02-02-2008 11:07 PM
2nd Gen S-series (1995-2005) Tech
11-23-2007 05:35 PM
General Tech Help
06-21-2006 07:38 AM

Thread Tools
Search this Thread
Quick Reply: Random engine failure while driving

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.