1990 Ford Mustang Idle problems

1990 FORD MUSTANG
Avatar
LKELLER
  • MEMBER
  • 2 POSTS
Engine Mechanical problem
1990 Ford Mustang V8 Two Wheel Drive Manual

My car will start just fine and idle good for about 1 minute. It then starts to idle down and have trouble running and will die. If i constantly pump the brakes the car will idle just fine. I know it is a vacuum problem, but not sure where to look. Please help!!
May 20, 2010 at 8:06 AM
Advertisement
Avatar
RASMATAZ
  • CERTIFIED EXPERT
  • 75,992 POSTS
Clean out the idle air control valve and test the coolant temperature, throttle position and mass airflow sensor and also look vacuum leaks
May 20, 2010 at 8:30 AM
Avatar
LKELLER
  • MEMBER
  • 2 POSTS
Thanks for the feedback. The IAC and TPS are brand new. Engine coolant temp is right where it should be, so I guess that this just leaves the MAF and vacuum leaks. Does it make sense that the issue is on the brake booster?
May 20, 2010 at 8:42 AM
Advertisement
Avatar
RASMATAZ
  • CERTIFIED EXPERT
  • 75,992 POSTS
Could be the booster is leaking
May 20, 2010 at 2:21 PM