P-N-R super slow when temps cold
Thread Starter
Joined: Feb 2002
Posts: 3,462
Likes: 4
From: N. Illinois
Car: 92 GTA/ 00 TA
Engine: 383/350
Transmission: 700R4/T-56
P-N-R super slow when temps cold
Year round my park to neutral and from neutral to drive are slow but in the winter I have upwards of 6 seconds for the tranny to shift out of one gear into the next. Summer timeframe is only about 3 seconds.
All other shifts are fine regardless of tranny or ambient temperature.
Is my pump taking a dump?
Valve body dirty?
All other shifts are fine regardless of tranny or ambient temperature.
Is my pump taking a dump?
Valve body dirty?
Thread Starter
Joined: Feb 2002
Posts: 3,462
Likes: 4
From: N. Illinois
Car: 92 GTA/ 00 TA
Engine: 383/350
Transmission: 700R4/T-56
Well then maybe I'm looking at a pump leak. Filter's new and level is actually a little over full. Fluid Dexron-Mercon III.
Member
Joined: Oct 2003
Posts: 405
Likes: 0
From: South Florida (NW_Broward)
Car: 1989 Firebird
Engine: 2.8L V6 MPFI
Transmission: Beat to heck 700R4
nods... pump vanes are a wear item.
You're losing pressure somewhere. Loose valve body bolts could do this too, or a broken accumulator spring.
You're losing pressure somewhere. Loose valve body bolts could do this too, or a broken accumulator spring.
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Junior Member
Joined: Jun 2006
Posts: 15
Likes: 0
From: Loogootee IN
Car: 87 camaro
Engine: 355
Transmission: 2800 stall 700r4
Axle/Gears: 7.5 4.10 auburn posi
The test port he is referring to is a 7/16 head hex plug on drivers side of trans right above the shift arm. rem ove the plug and install a trans pressure gauge and ck pressures in park and in gear. If I remember right somewhere around 65-80 psi in park
Thread Starter
Joined: Feb 2002
Posts: 3,462
Likes: 4
From: N. Illinois
Car: 92 GTA/ 00 TA
Engine: 383/350
Transmission: 700R4/T-56
Cool. Thanks.
Replacing the pump means pulling the tranny doesn't it. Maybe I should just go through the whole thing while i'm at it.
Replacing the pump means pulling the tranny doesn't it. Maybe I should just go through the whole thing while i'm at it.
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