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1997 Ford Ranger intake air temp sensor

Tiny
WORTHIN52
  • MEMBER
  • 1997 FORD RANGER
  • 4.0L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
How can you tell when an intake air temp sensor is bad?
Saturday, November 8th, 2014 AT 5:04 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,170 POSTS
The check engine light should come on. What is happening?
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Saturday, November 8th, 2014 AT 7:11 PM
Tiny
WORTHIN52
  • MEMBER
  • 35 POSTS
The truck runs fine until the outside temperature gets below 60. Then the check engine light comes on and it will surge at idle in gear or in park. If you wait a minute or so it will stop surging. I also get error codes for my O2 sensors. I don’t understand that because I replaced them a couple of months ago. This really has me stumped.
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Saturday, November 8th, 2014 AT 9:25 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,170 POSTS
I need to know all the codes you are getting. The idle air control valve (IAC) could be bad, a vacuum leak. Both of which can set an o2 code. Let me know what you found.
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Monday, November 10th, 2014 AT 1:36 PM

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