Is my tranny dying?

Joined
Nov 10, 2006
Messages
833
Location
Warsaw, Poland
So to the best of my knowledge, the tranny runs fine. The truck accelerates well, there shifts are smooth, and there is an instant increase of speed when I press the pedal, so it's not slipping I guess. But...

When I shift from D to R it takes almost 2 seconds. The same from R to D. Pressing the pedal doesn't help either as it just revvs for 2 seconds before shifting.

Other than that, there are no problems and I really like to press hard on it sometimes. I would never notice that problem but I took a ride in my friend's '97.

Should I worry?
How can I help my tranny?
What can I do?
 
Joined
Nov 10, 2006
Messages
833
Location
Warsaw, Poland
Fluid replaced 8 months ago (around 5K miles). Replaced the proper way, which means I drained 4 quarts, filles 4 quarts and drained another 9 quarts through radiator hose while filling through the dipstick. So the fluid should still be good.

I also checked the level and it's full.
 
Joined
Jan 31, 2008
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150
Location
Boulder, CO
mine does the same thing, although it only takes forever when switching into reverse, not out of it. Pretty common problem for the early a343 transmissions as i understand it.
 
Joined
Nov 10, 2006
Messages
833
Location
Warsaw, Poland
Is '96 early? They were introduced in 1994 I guess. And how much is it a characteristic feature or a problem.

If it's just a typical harmless behavior then I can live with it, but I would be nervous if it were to predict future problems and damage..
 
Joined
Apr 6, 2008
Messages
2
In my past experience when i have had trannies do this it has normally meant the pump is going bad. Not sure about lc trannies though. My tranny sometimes slips or shutters (bad vibrations) when i put it in reverse but not hesitates. I have had lots of auto tranny problems in the past most american made vehicles that had the pump problem ---I'm sure thats not what you want to hear.
 
Joined
Nov 10, 2006
Messages
833
Location
Warsaw, Poland
Well, I don't know how much $$$ for the pump so I have not passed out yet.

It shifts rapidly from gear to gear though.

I've also read somewhere about adding spacers to accumulator springs (or something like that) which is supposed to make the tranny shift faster. Anyone heard of this?
 

RockDoc

I'll take Bruce Vilanch for the block.
Joined
Jun 3, 2007
Messages
7,180
Location
SW MB CA
Get your hands on an FSM and look at the troubleshooting tests/diagnostics. If there is a section similar to that for the A440F in the FJ 62, you should be able to narrow down the problem based on the delay in shifting into D from P, R from P, and if need be, by checking the line pressure as the truck runs through the gears. If you haven't already, make sure you kick down cable is properly adjusted (or do these trannies go by electric signal for throttle?).

If it turns out to be something a valve body swap would fix, you may want to look into the units that Wholesale Automatics in Australia offers. I know for the A440F they are supposed to be a great upgrade (I'll know more in a month ;)), not sure if similar benefits are there for the A442F and A343F........ They are distributed in NA through Pacesetter Products out of Whitehorse.
 
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