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My 2002 Ford Explorer Sport Trac jumps up and.

Tiny
ANONYMOUS
  • MEMBER
  • 2002 FORD EXPLORER
  • 260 MILES
My 2002 ford explorer sport trac jumps up and down on the RPMS when ideling, when I stop at a red light it will idle about 600 rpms then jump down to 100rpms, sometimes it will jump 600rpms and just die/stall. Any idea what it may be? This is my first car
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Sunday, April 7th, 2013 AT 6:18 PM

2 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Check for vacuum leaks. The pcv hose is common. Check the idle air control as it may be failing

Roy
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Sunday, April 7th, 2013 AT 6:24 PM
Tiny
FREEMBA
  • MECHANIC
  • 1,152 POSTS
Try cleaning the IAC (Idle Air Control ) Valve. [A picture of the IAC is attached] didn't know which engine you had.

Use carb cleaner to clean the IAC and its intake manifold ports.
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Sunday, April 7th, 2013 AT 6:42 PM

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