General Motors Tech Chevy tech talk within.

88 454 won't start

Old 04-15-2012, 11:25 AM
Thread Starter
Join Date: Apr 2012
Posts: 1
Default 88 454 won't start

I started it and let it run for about 5 min. it started idleing fast and cross fireing. shut the motor down and it back fired out of the exh. the dist.cap has not in good shape. I replaced the coil,cap,rotor, and the spark. the dist. is going around with the the motor.
Old 04-15-2012, 04:46 PM
Diesel Dan's Avatar
Senior Member
Join Date: Mar 2012
Location: Warren, Ohio
Posts: 190

Hello, welcome to the Truck Forums.
Hopefully we can help you.
For starters are there any codes?
There are many things that could cause your no spark symptom.
-bad module(have personally seen multiple new ones bad in the box)
-bad pickup coil
Do you have a scan tool to help with diagnosis?
Do you have injector pulse?
Have you checked for spark out of the coil before the distributor?
Do you have an actual spark tester?
Old 04-18-2012, 08:04 PM
Senior Member
Join Date: Nov 2010
Posts: 106

Sounds like maybe the pickup coil mounted to the dist. shaft.
It is a old school crank sensor reads compression stroke.
Will not get spark if bad ..will act like vehicle is out of time then quit.
Sometimes will start back when cooled off.
Can check ohm,s on it with a electrical meter.
Set meter to low ohm,s setting . Disconnect yellow and green leads from ign. module.
Take leads touch one to green other to yellow should read 700 to 1200 ohm,s of resistance.
Old 10-23-2012, 03:40 AM
Join Date: Aug 2012
Posts: 33

i think you should make a diagnostic, and i know a good tool named
DigiProg 3
my friend have one , i think it can help you
Related Topics
Thread Starter
Last Post
Chevy Silverado/ GMC Sierra Forum
12-21-2010 09:35 AM
Chevy Silverado/ GMC Sierra Forum
10-30-2010 04:28 PM
91 GMC K2500
Chevy Silverado/ GMC Sierra Forum
03-23-2007 08:06 PM
Ford Heavy Duty
12-15-2005 10:05 PM
General Motors Tech
09-15-2005 12:51 PM

Thread Tools
Search this Thread
Quick Reply: 88 454 won't start

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 and affiliated sites.