Transmission only goes in reverse

Tiny
PTHACKER
  • MEMBER
  • 1997 FORD F-150
  • 4.9L
  • V6
  • 2WD
  • AUTOMATIC
  • 225,000 MILES
I just put a new transmission on my truck because it would only drive in reverse. Once replaced I still have the same problem it; only wants to go in reverse, but if I put in drive and rev real hard once I let off the gas it will jump forward a little bit. What is my problem?
Friday, October 11th, 2019 AT 12:21 PM

9 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,796 POSTS
Good afternoon,

Is this a used transmission?

Are there any codes stored?

https://www.2carpros.com/articles/automatic-transmission-problems

Roy
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Wednesday, March 24th, 2021 AT 12:00 PM
Tiny
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Yes, it's used got it from pull-a-part. Don't know about the codes, can't check.
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Wednesday, March 24th, 2021 AT 12:00 PM
Tiny
ASEMASTER6371
  • MECHANIC
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Okay, either the replacement is bad or it could be fluid.

Did you change the fluid and filter?

Is the check engine light on?

Roy
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Wednesday, March 24th, 2021 AT 12:00 PM
Tiny
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So I do not know about this one, but when the drive shaft was on the ground I rolled it and heard a little bit of a clunking noise. Could that be the problem?
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Wednesday, March 24th, 2021 AT 12:00 PM
Tiny
ASEMASTER6371
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No, that would not prevent it from going into forward.

Roy
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Wednesday, March 24th, 2021 AT 12:00 PM
Tiny
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Okay, so what are all my possible problems?
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Wednesday, March 24th, 2021 AT 12:00 PM
Tiny
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  • MECHANIC
  • 52,796 POSTS
Most likely internal in the transmission. It will have to be removed and torn down to find the failure.

Roy
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Wednesday, March 24th, 2021 AT 12:00 PM
Tiny
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Okay, thanks.
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Wednesday, March 24th, 2021 AT 12:00 PM
Tiny
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You are welcome.

Always glad to help.

Roy
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Wednesday, March 24th, 2021 AT 12:00 PM

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