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dxkj

Lifer
Feb 17, 2001
11,772
2
81
I was driving in to the cubbies game today in a

1990 Oldsmobile Ciera Automatic tranny


Ok here is what happens. If I leave it in gear (Drive, 1st or 2nd) it stalls. It acts like a manual that you leave in gear when you break. It seems like its not "disabling" the gear/engine when you stop.


Any ideas here? This was an interesting 3hrs of driving...
 
I

imported_Pablo

Diamond Member
Jan 20, 2002
3,714
1
0
Originally posted by: dxkj
I was driving in to the cubbies game today in a

1990 Oldsmobile Ciera Automatic tranny


Ok here is what happens. If I leave it in gear (Drive, 1st or 2nd) it stalls. It acts like a manual that you leave in gear when you break. It seems like its not "disabling" the gear/engine when you stop.


Any ideas here? This was an interesting 3hrs of driving...
Click to expand...


No useful information... but here is an idea...

DON'T EVER BUY AN OLDSMOBILE AGAIN!!!
 
Zenmervolt

Zenmervolt

Elite member
Oct 22, 2000
24,514
44
91
Sounds like a problem in the lockup clutch of the torque converter. Of course, it could also be an excessively viscous fluid in the torque converter as a result of another failure somewhere else. Have it looked at by a tranny shop or wait until Roger posts in this thread. ;)

ZV
 
crab

crab

Diamond Member
Jan 29, 2001
7,330
19
81
Torque converter lockup...Time for a real mechanic.
 
X

Xionide

Diamond Member
Apr 20, 2002
8,679
2
81
Congratulations. You have won a free clutchless manual upgrade to your car!

-Xionide
 
T

Thegonagle

Diamond Member
Jun 8, 2000
9,773
0
71
Your torque-converter is not unlocking when you come to a stop. It's caused by a sticky torque-converter control (TCC) solenoid.

It's a common problem on that GM platform, and the fix is cheap. (Under $200.) If anyone tries to tell you it's something else, run (!) and get a second opinion.
 
L

LordMorpheus

Diamond Member
Aug 14, 2002
6,871
1
0
Originally posted by: dxkj
I was driving in to the cubbies game today in a

1990 Oldsmobile Ciera Automatic tranny


Ok here is what happens. If I leave it in gear (Drive, 1st or 2nd) it stalls. It acts like a manual that you leave in gear when you break. It seems like its not "disabling" the gear/engine when you stop.


Any ideas here? This was an interesting 3hrs of driving...
Click to expand...

A friend of mine has an 88 pontiac something-or-other mid-sized crapola sedan.

It does the same thing. When he has to stop (like, at a red light) he puts it in low and stops early and then inches forward to keep the motor from stopping. When it does die, he just leaves it until he gets a green and turns it back on.

We always have arguments about which of our cars is better.
 
J

JeffreyLebowski

Lifer
Aug 23, 2000
15,509
1
81
i had an 89 olds that did that, it turned out to be a computer problem, it was telling the fuel injectors to keep firing at a higher rate than what the car actually needed.
 
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dxkj

Lifer
Feb 17, 2001
11,772
2
81
Originally posted by: Thegonagle
Your torque-converter is not unlocking when you come to a stop. It's caused by a sticky torque-converter control (TCC) solenoid.

It's a common problem on that GM platform, and the fix is cheap. (Under $200.) If anyone tries to tell you it's something else, run (!) and get a second opinion.
Click to expand...

So what If I have been revving the engine and dropping it into first about 30 times to get it going? Will doing forced spin outs on an auto tranny hurt it? :)
 
DougK62

DougK62

Diamond Member
Mar 28, 2001
8,035
6
81
How did it shift before the problem? Sounds like a TCC problem to me, as someone else already mentioned. You can unplug it and the converter just won't lock up, but it'll drive just fine. Only side effect is slightly worse MPG.

EDIT: BTW, that's a very common thing on that 3spd auto trans.
 
7

79Blazer

Golden Member
Nov 12, 2003
1,037
0
0
Originally posted by: Zenmervolt
Sounds like a problem in the lockup clutch of the torque converter. Of course, it could also be an excessively viscous fluid in the torque converter as a result of another failure somewhere else. Have it looked at by a tranny shop or wait until Roger posts in this thread. ;)

ZV
Click to expand...

Exactly what ZV said. That's happened to me before.
 
7

79Blazer

Golden Member
Nov 12, 2003
1,037
0
0
Originally posted by: dxkj
Originally posted by: Thegonagle
Your torque-converter is not unlocking when you come to a stop. It's caused by a sticky torque-converter control (TCC) solenoid.

It's a common problem on that GM platform, and the fix is cheap. (Under $200.) If anyone tries to tell you it's something else, run (!) and get a second opinion.
Click to expand...

So what If I have been revving the engine and dropping it into first about 30 times to get it going? Will doing forced spin outs on an auto tranny hurt it? :)
Click to expand...

Yeah. That's not good. Puts alot of stress on your tranny, C/V joints, axles. You could blow your tranny doing that.
 
slag

slag

Lifer
Dec 14, 2000
10,473
81
101
Originally posted by: dxkj
Originally posted by: Thegonagle
Your torque-converter is not unlocking when you come to a stop. It's caused by a sticky torque-converter control (TCC) solenoid.

It's a common problem on that GM platform, and the fix is cheap. (Under $200.) If anyone tries to tell you it's something else, run (!) and get a second opinion.
Click to expand...

So what If I have been revving the engine and dropping it into first about 30 times to get it going? Will doing forced spin outs on an auto tranny hurt it? :)
Click to expand...

Bingo.. torque converter lockup solenoid.. easy fix, pretty common on GM vehicles.
 
D

dxkj

Lifer
Feb 17, 2001
11,772
2
81
Originally posted by: DougK62
How did it shift before the problem? Sounds like a TCC problem to me, as someone else already mentioned. You can unplug it and the converter just won't lock up, but it'll drive just fine. Only side effect is slightly worse MPG.

EDIT: BTW, that's a very common thing on that 3spd auto trans.
Click to expand...

Any advice on how to unplug the torque converter? This is a second vehicle for us, and Im not really worried too much about worse MPG.
 
DougK62

DougK62

Diamond Member
Mar 28, 2001
8,035
6
81
Originally posted by: dxkj
Originally posted by: DougK62
How did it shift before the problem? Sounds like a TCC problem to me, as someone else already mentioned. You can unplug it and the converter just won't lock up, but it'll drive just fine. Only side effect is slightly worse MPG.

EDIT: BTW, that's a very common thing on that 3spd auto trans.
Click to expand...

Any advice on how to unplug the torque converter? This is a second vehicle for us, and Im not really worried too much about worse MPG.
Click to expand...

It's been a long time since I've done it. What you're looking for is just an electrical connector on the transmission - it may even be the only electrical plug on the whole trans. It'll be on the top of the transmission. So get a flash light, open the hood, and start loking around there on the driver's side of the engine bay. There should be a diagram somewhere on the internet on where the TCC solenoid is on that transmission. That trans was used in nearly every small FWD automatic car that GM made in the late 80s/early 90s.

If you take it to a mechanic all they'll likely do is unplug it.
 
D

dxkj

Lifer
Feb 17, 2001
11,772
2
81
When the TCC switch goes bad the car generally acts like this. You
leave for you destination and everything is great. After the car warms up a
little the car starts acting like you wonderful automatic has decided to
turn into a manual transmission without giving you a clutch. ;^) The
car will buck and shake when you slow down to stop just like when you stop
in a car with a manual without pushing in the clutch. The car is nearly
impossible to get moving again without letting it cool down or dropping
it from neutral to drive with the engine revved way up. (ouch)




Well that sums it up word for word..... and I did drop it into first after revving it :(
 
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