Automotive Forums .com - the leading automotive community online! Automotive Forums .com - the leading automotive community online!
Automotive Forums .com - the leading automotive community online! 
-
Latest | 0 Rplys
Go Back   Automotive Forums .com Car Chat > Chevrolet > General Discussion
Reply Show Printable Version Show Printable Version | Email this Page Email this Page | Subscription Subscribe to this Thread
 
Thread Tools Search this Thread
Old 05-06-2009, 11:30 AM   #1
karattop
AF Newbie
 
Join Date: May 2009
Location: Eastern, North Carolina
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
'89 K1500 starts cold or hot, not warm

Truck will start if dead cold or if just shut off (like at gas station) but not if it has sat an hour or so. If started cold and left to idle, it dies when it get up to around 190 degrees. Codes 15, 32, 43.

Question: Should the FPR hold pressure? It will pressure up to about 12psi on key turn and then immediately backs down to about 2. Entirely new FPR does same, but thought I read it should hold pressure at least 15 minutes.

Evidence seems to point to ESC (Code 32) or TPS because temp can change how these work. Does the TPS get its instructions from the ECM? Should I be looking at the ECM? Parts place can't test it, so it would be a complete stab in the dark if I changed that. Are there other sensors that are temp-dependent that I should look at (and can be tested)? Could this actually go back to a vacuum issue?

Specs: '89 K1500 w/350(TBI)
karattop is offline   Reply With Quote
 
Reply

POST REPLY TO THIS THREAD


Bookmarks

Tags
1989, chevy, silverado, start, tbi
Go Back   Automotive Forums .com Car Chat > Chevrolet > General Discussion

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 12:05 PM.

Community Participation Guidelines | How to use your User Control Panel

Powered by: vBulletin | Copyright Jelsoft Enterprises Ltd.
 
 
no new posts