General Motors Tech Chevy tech talk within.

'89 cheyenne stalling problem

Old 10-10-2010, 11:28 AM
Thread Starter
Join Date: Oct 2010
Posts: 4
Default '89 cheyenne stalling problem

Iíve been driving the same í89 Chevrolet Cheyenne as my every-day work truck for the past ten years. Over the years Iíve rebuilt the engine and done all the required maintenance and itís remained essentially stock except for removing the catalytic converter and blocking off the EGR. It is 305 cubic inch, 5-speed manual, throttle body injection and computer controlled with ODB1.
In the last year or so I can not get it to idle once itís warm. The truck starts great and will idle for hours as long as I donít drive it. As soon as I drive it, the engine will not return to idle but will stall. Very rarely, the engine will return to a good idle and will not stall. No trouble codes except for code 32 which is EGR.
I put in a new idle air control (IAC). Iíve also recently installed new TPS and MAP sensors, PCV, fuel filter and alternator. All parts are from Napa. Timing is TDC as per the emissions label. Iíve read through the ďrough, unstable, or incorrect idle, stallingĒ section in the factory service manual probably 45 times. This one is driving me crazyÖPLEASE HELP.
Thanks very much!!!
Related Topics
Thread Starter
Last Post
General Motors Tech
09-22-2011 10:16 AM
General Motors Tech
12-14-2009 05:38 PM
General Motors Tech
05-25-2009 01:24 AM
LB Landscaping
Chevy Silverado/ GMC Sierra Forum
01-14-2006 11:01 AM
General Motors Tech
09-15-2005 01:15 PM

Thread Tools
Search this Thread
Quick Reply: '89 cheyenne stalling problem

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.