SPONSORED LINKS

1989 GMC C1500 surges at idle

Tiny
CHRIS SHOOK
  • MEMBER
  • 1989 GMC C1500
  • V8
  • 2WD
  • AUTOMATIC
  • 100,000 MILES
No codes surges at idle cold or hot have changed injecters fuel regulator plugs wires tps sensor no vacume leaks also replaced coolent temp sensor on intake I dont know what the timming specs are but have advanced and tried retareding it with no change in surging at idle what are possible resolutions to this problem
SPONSORED LINKS
Monday, July 27th, 2009 AT 9:22 PM

1 Reply

Tiny
DR LOOT
  • MECHANIC
  • 2,311 POSTS
If what you're telling me is true, you failed to tell me what the fuel pressure is and/or what the fuel gauge does when the engine is surging dozen surge also? And what about the EGR valve? You may want to remove it and clean it also a may not be sealing completely causing a radical idol. Try those things and get back to me.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
-2
Thursday, July 30th, 2009 AT 5:07 PM

Please login or register to post a reply.

Related Engine Idle Erratic Content

Vacuum Leak Test and Repair
VIDEO
Vacuum Leak Test and Repair
Instructional repair video
Idling High
GUIDE
Idling High
Intermittent sensor failure or shorting can cause the computer to act strange with unusual side effects, these problems are particularly tough to diagnose. The computer...
VIEW MORE

Sponsored links