stumbles on acceleration


  #1  
Old 01-19-08, 07:11 AM
S
Member
Thread Starter
Join Date: Jul 2006
Location: USA
Posts: 163
Received 0 Votes on 0 Posts
stumbles on acceleration

88 chevy 3/4 ton 5.7 , friend bought truck it needed flywheel (never heard it run,sat for 5 months) we installed new flywheel started it up ran ok now it stumbles on acceleration we installed new cap/rotor/fuel filter, checked plugs ok replaced coil wire arching sprayed rest of wires with water ok no engine light on checked for vaccuum leaks none found
 
  #2  
Old 01-19-08, 07:24 AM
M
Member
Join Date: May 2006
Location: Iowa!!!!!
Posts: 4,294
Received 27 Votes on 26 Posts
I would start by replacing the all the plug wires and put in fresh fuel if you haven't already. Five months sitting could have given you bad fuel.
 
  #3  
Old 01-19-08, 07:46 AM
Gunguy45's Avatar
Super Moderator
Join Date: Dec 2007
Location: USA
Posts: 21,112
Received 4 Votes on 4 Posts
stumbles

Stumbling on acceleration with carb engines always indicated an accelerator pump prob back in the day.

Yours has TBI, right? Does throttle body fuel injection use an accelerator pump?

I love the reliability of most new cars, but GAWD I hate working on them.
 
  #4  
Old 01-20-08, 06:37 AM
P
Member
Join Date: Feb 2005
Location: USA
Posts: 1,396
Received 0 Votes on 0 Posts
When my '93 Silverado stumbled badly on accelleration, I first thought of fuel pump, fuel filter, etc. Changing the plugs and wires solved it before I looked any further. Running like a top ever since.

Pecos
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description: