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 > GMC > Sierra
Reply Show Printable Version Show Printable Version | Email this Page Email this Page | Subscription Subscribe to this Thread
 
Thread Tools Search this Thread
Old 11-22-2003, 12:58 AM   #1
AKGMC
AF Newbie
 
Join Date: Nov 2003
Location: Healy, Alaska
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
5.7L misfire after intake manifold gaskets replaced

Hi all, first post here...

I just had my 97 Sierra K2500 intake manifold gaskets replaced at a shop in town. There had been no noticable trouble with the engine except that coolant was dissappearing. They pressure tested it the cooling system and said the gasket was bad.

I got the truck back from them and it immediately started "stumbling" at 2500 rpm, no matter what gear, and seemingly not under much of a load. I think I could have punched the accelerator and roared past 2500 without trouble, but with the normal acceleration (I'm gettin' old!) it would misfire.

I brought it back to the shop and they called me and said the fuel pump was not producing enough pressure. Since the quote was for $610 to replace with a OEM pump/sender unit, I took it home and swapped the pump myself. There was a very noticable change in starting...the engine caught almost immediately! But it keeps stumbling and is getting worse four days later.

The truck is a K2500 with 95,000 miles, a manual transmission and has the 5700 engine. I've not had any problems with it to date. I have not yet changed the plugs/wires/distributor cap/rotor, but prior to going into the shop there was no noticable probelms with the way it ran (except that it took about 2 seconds longer to fire up when cold).

I have new plugs/wires/distributor cap/rotor being delivered in the morning and hope it will fix the problem. Any other ideas?
AKGMC is offline   Reply With Quote
 
Reply

POST REPLY TO THIS THREAD


Bookmarks
Go Back   Automotive Forums .com Car Chat > GMC > Sierra

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 02:22 AM.

Community Participation Guidelines | How to use your User Control Panel

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