c6
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Junior User
Joined: Jan 2007
Posts: 99
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From: Southern Md.
c6
86 F-250 4x2 460 w/C 6, When truck sets overnight it takes a few minutes of warm up to get it to go in gear, when it's warm it engages pretty normal. since the cooler overnight temps it takes even longer, think it may be pump or converter ? has a lot of miles on it but shifts good, also reverse works hot or cold. If I rebuild it is it necessary to replace converter?
Thanks in advance!!
P.S.any rebuild kits that stand out as the best?
Thanks in advance!!
P.S.any rebuild kits that stand out as the best?
i ain't rite
Joined: Mar 2005
Posts: 65,558
Likes: 5,591
From: Marlboro Mental Hospital.
this is a classic symptom of a bad pump seal.
you can try putting a bottle of Lucas trans-fix in it. it may help.
what it does is swells the seal, so it dont loose pressure when it cools down.
i added it to the C4 in my falcon and got another 4 years out of the trans before i rebuilt it.
you can try putting a bottle of Lucas trans-fix in it. it may help.
what it does is swells the seal, so it dont loose pressure when it cools down.
i added it to the C4 in my falcon and got another 4 years out of the trans before i rebuilt it.
Cargo Master
Joined: Jun 2003
Posts: 2,982
Likes: 7
From: Somewhere Saskatchewan
Originally Posted by tjc transport
this is a classic symptom of a bad pump seal.
you can try putting a bottle of Lucas trans-fix in it. it may help.
what it does is swells the seal, so it dont loose pressure when it cools down.
i added it to the C4 in my falcon and got another 4 years out of the trans before i rebuilt it.
you can try putting a bottle of Lucas trans-fix in it. it may help.
what it does is swells the seal, so it dont loose pressure when it cools down.
i added it to the C4 in my falcon and got another 4 years out of the trans before i rebuilt it.
Surely you jest.
With that age and mileage the clutch drum seals are probably shrunk and hard.
Lucas may or may not help.
i ain't rite
Joined: Mar 2005
Posts: 65,558
Likes: 5,591
From: Marlboro Mental Hospital.
pump seal, drum seal? same difference. when they get old, hard, and crusty, they suck.
i have had more good luck with lucas than bad, but either way, it is only a temporary fix. sooner or later, the trans has to come down.
i have had more good luck with lucas than bad, but either way, it is only a temporary fix. sooner or later, the trans has to come down.
Cargo Master
Joined: Jun 2003
Posts: 2,982
Likes: 7
From: Somewhere Saskatchewan
so wrong
Originally Posted by tjc transport
pump seal, drum seal? same difference. when they get old, hard, and crusty, they suck.
i have had more good luck with lucas than bad, but either way, it is only a temporary fix. sooner or later, the trans has to come down.
i have had more good luck with lucas than bad, but either way, it is only a temporary fix. sooner or later, the trans has to come down.
Drum seal is in the drum and holds the pressure in the drum once it's applied.
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Junior User
Joined: Jan 2007
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From: Southern Md.
Originally Posted by stuart1
Pump seal is in the pump and keeps the fluid inside the transmission.
Drum seal is in the drum and holds the pressure in the drum once it's applied.
Drum seal is in the drum and holds the pressure in the drum once it's applied.
TIA
i ain't rite
Joined: Mar 2005
Posts: 65,558
Likes: 5,591
From: Marlboro Mental Hospital.
Trending Topics
Posting Guru
Joined: May 2003
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Delayed engagement when cold is a common problem with older or high mileage C6 transmissions. It is generally caused by hard seals in the forward clutch. While additives to the oil may make a temporary repair the solution is to overhaul the transmission. Additives can swell the seals to the point that an overhaul becomes more work than necessary.
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