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ram250098

Posted 2022-07-08 5:13 PM (#622727)
Subject: Reverse only when car is warmed up.

Member

Posts: 32

I have a 58 Fireflite. I only seem to have reverse when the car is warmed up. She starts great and all forward gears work even low. But put it into reverse and nothing. Wait a few minutes and it will pop in. Fluid is clean and at the right level.
Could this be needing a band adjustment. it has been getting worse over the last couple weeks.
Thanks all
AL

Powerflite

Posted 2022-07-08 7:06 PM (#622729 - in reply to #622727)
Subject: Re: Reverse only when car is warmed up.

Expert 5K+

Posts: 9654
5000

Location: So. Cal

A band adjustment isn't likely to help as it is the same adjustment for reverse and low.

Shep

Posted 2022-07-08 8:30 PM (#622731 - in reply to #622729)
Subject: Re: Reverse only when car is warmed up.

Expert

Posts: 3393
2000

Location: Chestertown, NY ( near Lake George)

The seals in the servo are most likely bad and seal better as warm fluid expands them just enough to apply the band.

ram250098

Posted 2022-07-08 9:14 PM (#622732 - in reply to #622727)
Subject: Re: Reverse only when car is warmed up.

Member

Posts: 32

Thanks...after checking again it does have touch to much fluid on the dipstick maybe I will drain a bit out and see if it helps.
Is it just a seal or the whole reverse servo piston?
Also just realized I put in full synthetic oil...could this be the difference?
Thanks again
AL

Edited by ram250098 2022-07-09 8:39 AM

57chizler

Posted 2022-07-09 1:58 PM (#622746 - in reply to #622731)
Subject: Re: Reverse only when car is warmed up.

Expert

Posts: 3776
2000

Location: NorCal

Shep - 2022-07-08 5:30 PM

The seals in the servo are most likely bad and seal better as warm fluid expands them just enough to apply the band.

I agree, and don't confuse 1st gear in Drive with manual Low (1).

Mr. Bob

Posted 2022-07-09 2:08 PM (#622749 - in reply to #622727)
Subject: Re: Reverse only when car is warmed up.

Regular

Posts: 66

Location: Ferndale, WA 98248

Try putting a bottle of Trans X in. It softens the internal trans seals. I had a 57 Dodge that would sometimes take a few mins to engage in Drive. Trans X fixed it.

ram250098

Posted 2022-07-09 4:10 PM (#622757 - in reply to #622727)
Subject: Re: Reverse only when car is warmed up.

Member

Posts: 32

Thanks Bob it is amazing the difference in opinions on what to use for fluid. I read many posts and not really a solid choice. I drained the fluid as I was not sure what was in it when I bought it and had added some ATF synthetic as well . I filled it with Type F and I noticed a huge difference right away. I really don't think the trans likes the new synthetic stuff.

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