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Transmission

Tiny
WILLIAM WHITNEY
  • MEMBER
  • 2005 FORD FREESTAR
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 168,000 MILES
Transmission slams in first few gears then will not go in overdrive. No check engine light but transmission light flashes.
Thursday, August 10th, 2017 AT 1:39 PM

4 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,904 POSTS
Hello,

It sounds like you have a one of two problems, the first will be a plugged catalytic converter which will cause the vacuum of the engine to be low and make the transmission shift late and not go into overdrive.

Here is a test that will confirm the problem,

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

The other would be a MAF sensor that is off. I would try cleaning the sensor first. Here is a guide for that as well.

https://www.2carpros.com/articles/mass-air-flow-service

This will cause the readings to the computer to be off and cause the same problem.

Please let us know what happens.

Cheers, Ken

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Monday, August 14th, 2017 AT 9:13 AM
Tiny
WILLIAM WHITNEY
  • MEMBER
  • 3 POSTS
Thanks, I will give both of them a try!
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Monday, August 14th, 2017 AT 4:02 PM
Tiny
WILLIAM WHITNEY
  • MEMBER
  • 3 POSTS
Cleaning the MAF didn't work will try the cat next.
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Tuesday, August 15th, 2017 AT 1:32 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,904 POSTS
Okay, that will cause the problem. Let me know
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Wednesday, August 16th, 2017 AT 10:28 AM

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