SPONSORED LINKS

It idles good, but stalls when I go to drive, how do I fix this?

Tiny
LUNASTAR
  • MEMBER
  • 1993 GMC SIERRA
  • 300,000 MILES
I've already replaced: map sensor, plugs, fuel pump, sending unit, fuel pump relay, coil, plug wires.
Tuesday, January 10th, 2012 AT 5:45 PM

2 Replies

Tiny
HOTREDNKGRL
  • MEMBER
  • 5 POSTS
I have the same issue with my 85 sierra, the lower I put the idle the less it stalls out on me, but the truck idles hard. And you would think it would stall out more with lower idle.I replaced every thing as well, thinking it was a fuel issue. It is bad on taking off on hills so muh that I kep light presure on gas at stops on hills.I just keep tinkering with the idle
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Tuesday, January 10th, 2012 AT 8:00 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check the gasket under the tbi unit for being blown. Get some choke cleaner and spary around the bottom of the tbi unit and if the rpms change it's probably blown. Also the ose going to the map sensor if soft replace that as well as the pcv hose. That's a common cause on these.
Was this
answer
helpful?
Yes
No
Tuesday, January 10th, 2012 AT 8:07 PM

Please login or register to post a reply.

Related Engine Stall At Idle Content

Engine Stalls After Dead or New Battery
GUIDE
Engine Stalls After Dead or New Battery
So you installed a new battery and now the engine stalls? You have done nothing wrong because believe it or not this is normal. The engine computer has a learning cycle...
VIEW MORE

Sponsored links