This 92 Bonneville I was thinking to buy has a problem. It starts fine but
then, in several seconds, it stalls. Sometimes it works for about ten
seconds. If I press the accelerator a quarter of the way down or so it will
keep running but accelerates and decelerates. well, it wants to stall. I was
told that, when it started having the problem, the car would be going OK,
then accelerate and stall. It would work in idle, but not anymore. Any idea
what it could be?
I used a Actron Scan Tool and it didn't show any error codes in memory, but
when I used the Record Data function and then played it back it showed Quad
Driver 1 Bad and Quad Driver 2 Bad. Does this mean the PCM is bad?
It sounds like the TCC solenoid has gone bad. Look at either end of the
engine (I believe it's on the drivers side though) and there's a pig tail
that plugs into the tranny housing. If you unplug it and it doesn't stall
then its the solenoid.
The TCC for my 89 Z-24 was easy to replace. I don't remember what the
TCC cost was. Less than $50 from the dealer.
On my Z, it went in throught the top left of the trans case on the
driverside. ( 2.8 V6 ).
1991 Pontiac Bonneville LE
3800 V6 ( C ), Black/Slate Grey
_~_~_~299, 179 miles_~_~_
~~~The Former Fleet ~~~
89 Cavalier Z 24 convertible
78 Holiday 88 coupe
68 LeSabre convertible
73 Impala sedan
I unplugged the plug into the transmission housing and the problem is the
same. Today I tried the car myself, I started the engine, drove in the
Park-in-lot for about 3 minutes, then it started to hesitate and a minute or
two later it stalled and wouldn't start. After a couple of minutes later it
started again but still rough and quickly stalling. I started it again,
accelerated the engine a little and it kept running. when I was doing this I
heard a relay clicking a few times somewhere to the right under the
dashboard. The engine wasn't stalling and I put the car in drive. As I
accelerated to start going, it appeared as if I was breaking at the same
time and the car would move slow as if it was pulling a big load or as if
the transmission was slipping but the RPMs were only about 2000 or a little
It seems that when the engine gets warm the transmission gets sluggish or
as if in a high gear. Is
this indicative of a bad TCC solenoid?
This happens with or without the plug plugged into the transmission.
I have good news (for myself). The Bonneville is working fine. I took it to
an AAMCO shop and they said it was the transmission and it had to be rebuilt
or replaced, it was not just the TCC Solenoid, and they did drive it around
the block. Then I went to another transmission shop, kind of a family shop,
I didn't take the car because I didn't want to force it anymore, I just
described what the car was doing (more or less like what you see below from
my other message) and the guy told me to check the computer. So, I went to a
junk yard and got a used one, $75.00, and replaced it. The car is working
fine now. I drove it for about 45 minutes and no problem. I don't have much
doubt that it is OK, I will see in the next few weeks.
I did put back the old computer and it does have a problem. Now, I think
this is important, in my experiments I discovered that if the battery in the
car is low, the problem is much severe. When I put a battery that I charged
during the night, the car did hesitate etc. but the transmission didn't feel
like dragging a heavy load.
I hope this helps anyone that may enconter the same type of problem in the
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