Transmission Troubles

nessies2003 · 09-27-2011, 12:59 AM

My 89 Toyota Supra Turbo (automatic) has been showing some signs of transmission problems, but I'm pretty sure it was replaced in the last 30k miles.

About 6 months ago or so, the engine started doing this sputtering thing right after ignition until the car had run for a bit. That issue hasn't really been a problem and could not be duplicated at the mechanic.

Recently though, when I'm driving about 35 mph, the transmission tries to switch gears and never finishes. The engine just keeps reving and accumulating rpm with no gear switch. I've found that turning the Overdrive off has allowed me to drive when this happens, but it is clearly not a permanent solution.

I checked my fluid today after driving home on a reasonably flat surface, and it looks like it is slightly low for being hot (at the bottom of the HOT marker). It's also brownish.

Is it possible that I just need to add or replace fluid, and if so, should I get a full flush? Any other possibilities?

Thanks.

Mk3FirstCar-Mike · 09-27-2011, 01:37 AM

(Dextron II Automatic Transmission Fluid)

I believe it's supposed to be a very light brown.

Replace it. That's pretty much the #1 cause for A/T problems.

trd_brad · 09-27-2011, 07:05 PM

Quote:

Originally Posted by Mk3FirstCar-Mike

(Dextron II Automatic Transmission Fluid)

I believe it's supposed to be a very light brown.

Replace it. That's pretty much the #1 cause for A/T problems.

i agree do a flush

nessies2003 · 09-27-2011, 07:45 PM

That seemed to work miracles! Thanks everyone.

09-27-2011, 01:37 AM	#2
Mk3FirstCar-Mike 3" Exhaust Join Date: Jul 2011 Location: Titusville, PA Posts: 54	(Dextron II Automatic Transmission Fluid) I believe it's supposed to be a very light brown. Replace it. That's pretty much the #1 cause for A/T problems. __________________ "Faster, faster, faster, until the thrill of speed overcomes the fear of death." – Hunter Thompson "It is amazing how many drivers, even at the Formula One Level, think that the brakes are for slowing the car down." – Mario Andretti "Speed has never killed anyone, suddenly becoming stationary… that’s what gets you." – Jeremy Clarkson "When I raced a car last it was at a time when sex was safe and racing was dangerous. Now, it’s the other way round." – Hans Stuck

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09-27-2011, 12:59 AM	#1
nessies2003 Stock Join Date: Sep 2011 Location: Seattle Posts: 6	Transmission Troubles My 89 Toyota Supra Turbo (automatic) has been showing some signs of transmission problems, but I'm pretty sure it was replaced in the last 30k miles. About 6 months ago or so, the engine started doing this sputtering thing right after ignition until the car had run for a bit. That issue hasn't really been a problem and could not be duplicated at the mechanic. Recently though, when I'm driving about 35 mph, the transmission tries to switch gears and never finishes. The engine just keeps reving and accumulating rpm with no gear switch. I've found that turning the Overdrive off has allowed me to drive when this happens, but it is clearly not a permanent solution. I checked my fluid today after driving home on a reasonably flat surface, and it looks like it is slightly low for being hot (at the bottom of the HOT marker). It's also brownish. Is it possible that I just need to add or replace fluid, and if so, should I get a full flush? Any other possibilities? Thanks.

09-27-2011, 07:45 PM	#4
nessies2003 Stock Join Date: Sep 2011 Location: Seattle Posts: 6	That seemed to work miracles! Thanks everyone.