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OBD Code P0442

Tiny
JON KNODLE
  • MEMBER
  • 2001 FORD EXPLORER
  • V6
  • 4WD
  • AUTOMATIC
  • 156,000 MILES
When the vehicle is idling, it seems as if it is going to stall out. It has not yet, but has come close. I have checked the gas cap to ensure it is tight and is not defective. I am curious to what it could be? Help! Thanks!
Tuesday, October 25th, 2016 AT 4:42 AM

3 Replies

Tiny
JON KNODLE
  • MEMBER
  • 2 POSTS
However, no check engine light.
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Tuesday, October 25th, 2016 AT 4:47 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Try cleaning throttle plate on both sides and IAC hole with choke cleaner. They get gummy and sticky and cause that.
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Tuesday, October 25th, 2016 AT 6:07 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Code 442 is a small leak in evaporator system one of our tips from other mechanics is to check pipe where fuel cap seals as they are plastic and develop small cracks letting air into system and leaking. Other wise it will need to be smoke tested by a mechanic to see where leak is.
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Tuesday, October 25th, 2016 AT 6:12 AM

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