1988 Ford Mustang 88 Gt 5 0 Automatic Been Wanting Die You Let Off Gas Kinda

1988 FORD MUSTANG
151,000 MILES
Avatar
JJ58551
  • MEMBER
  • 33 POSTS
I have a 88 mustang gt 5.0 automatic. It has been wanting to die when you let off the gas. Kinda has a up an down idle when you come to a stop anf then dies. The car does not have an oxygen sensor. The guy how had it before me just took it off and plugged the hole with a bolt. I was told that this could be my issue. And it is a speed density motor. Could this be the problem?
Apr 8, 2013 at 8:52 PM
Advertisement
Avatar
RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
Check and test the idle speed control motor on the throttle body unit-
Apr 8, 2013 at 9:10 PM
Avatar
JJ58551
  • MEMBER
  • 33 POSTS
Would that be the idle air control valve? If so its new! If not, where would it be?
Apr 8, 2013 at 9:14 PM
Avatar
RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
Same thing controls the idle speed-clean the EGR and PCV valve and see what happens-
Apr 8, 2013 at 9:59 PM
Avatar
JJ58551
  • MEMBER
  • 33 POSTS
Sorry to ask so many quetions! Is the egr the thing that is right onthe other side of the idle air control?
Apr 8, 2013 at 10:16 PM
Avatar
RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
It will be just behind and above the drive belts at the front of the engine. There will be several vacuum hoses attached to the valve and the valve itself has a silver in color disc like "hat" on it and a "L" shaped body.

Apr 8, 2013 at 10:33 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.