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-   1992-1999 (https://www.gmforum.com/1992-1999-91/)
-   -   Stalling (https://www.gmforum.com/1992-1999-91/stalling-236426/)

MnBonne 05-29-2006 10:14 PM

Stalling
 
I have a 93 Bonneville SE with a 3800 And don't know what type. But it stalls at stop signs or when I'm not on the gas. And when I'm going down the highway with my cruise on. It will kick it's self off of cruise and then the tach jumps up like it's down shifting.

LakevilleSSEi 05-29-2006 11:11 PM

Sounds like you could possibly have a failing Torque Converter.

When do you get the symptoms? After the car warms up? Before it warms up?

Are you getting any check engine lights?

Give as much detail as you can.

Also, what part of MN are you from? We may have someone near you that could possibly help you diagnois it with a scan tool.

MnBonne 05-29-2006 11:14 PM

stalling
 
Does not matter if it is warm or cold.Service engine soon light is on. Pipetone extreme south west corner.

LakevilleSSEi 05-29-2006 11:25 PM

Wow....You're a wayyyyyyssssssssssssss out there.......

Closest member to you I believe is in Montevideo, but he doesn't have a scan tool..But you're in luck, with a 93, you can flash out your own Check Engine light codes following this simple method posted here:
http://www.bonnevilleclub.com/forum/...e=article&k=57


1987-1993 ECM Code Retrieval

Yes there is a way to retrieve codes yourself, but, it only works on models from 1987 - 1993!
Find the "Assembly Line Communication Link (ALCL)" it usually found under the dash near the steering column. Now locate terminals "A" & "B", the 2 uppermost right-hand terminals, "A" is the one the right. You must use a short wire to ground out these terminals, or a hairclip, paperclip, or something similar. Short the terminals with the ignition off, then turn the ignition to "on" but do not start the car. The ECM will display "Code 12" by flashing the "Service Engine Soon" light indicating the system is working. Code 12 is simply one flash, followed by a brief pause, then two flashes in quick succession. This code will flash three times. If no codes are stored code 12 will continue to flash until the ground is removed from the terminal.
After flashing three times, the ECM will display any stored trouble codes. Each code will be flashed three times then code 12 will be flashed again indicating display is completed.
Note: If the trouble is intermittent the engine light will come for about ten seconds then go out. If the trouble is more serious then the engine light will stay on and the trouble codes stored in the ECM memory until voltage is interrupted to the ECM. To clear the codes, disconnect the battery for about ten minutes.

Note: If you or anyone else has disassembled the lower footwell shield (with the diagnostic connector and courtesy light in it) it is possible the connector was reinstalled upside down. In this case, the uppermost right 2 terminals are no longer A nd B! No damage will be incurred if you short these two in this instance, but you will get no codes. If this happens, try the bottom 2 terminals on the left side!


To look up the codes you have pulled please look at the code listing for your model year
Try that out, and then post the codes that it gives you.

MnBonne 05-29-2006 11:30 PM

Stalling
 
I have a appiontment at the local shop for it tommorow. If it it's a torque converter are they pretty spendy to replace. And I was also going to say that, like when I'm Ideling in park in the garage or where ever. When the service engine soon light comes on and I rev it up the thing will just kill out. And the light ain't on all the time. Just when you roll up to stop signs. Or Ideling.

LakevilleSSEi 05-29-2006 11:33 PM

Is the idle really rough?

Because now it's almost starting to sound like it could be a stuck EGR....

Or a REALLY bad O2 sensor. How many miles you have on that whip anyways?

If you can get the codes to flash out, and post them here, we can save you a trip to the shop, and prolly just a trip to the parts store. Good chunk of money too ;)

And yes, Torque Converters are spendy, well the part isn't, but the labor to install one is as you are required to drop the trans out to do it.

MnBonne 05-29-2006 11:37 PM

stalling
 
The idel is kind of rough, it's really low to if I remember it's under 1000 idle. If I remember it has about 280,000 maybe a little less. I just bought it about three weeks ago. Took it to Mankato it ran great that whole weekend, got home then it started acting up.

LakevilleSSEi 05-29-2006 11:42 PM

Wow, she's got some turns on her lol.

These cars pretty much desire the idle to be anywhere from about 650-950, depending on how warm the car is, if it's in gear or not, and what the weather conditions are.

MnBonne 05-29-2006 11:45 PM

stalling
 
i will run outside and do that and email you back.

LakevilleSSEi 05-29-2006 11:50 PM

Awesome. I'll be waiting for your codes.

MnBonne 05-29-2006 11:59 PM

Stalling
 
Each code a got it flashed three times, the first one was flash pause then 2 flashes. The next one was 2 pause 2, then 3 pause 9, then 4 pause 3. And the whole time I was doing it my fan was on.

MnBonne 05-30-2006 12:01 AM

Stalling
 
And also I guess I only have 210,812 miles, I guess I shouldn't have guessed.

Hans 05-30-2006 12:15 AM

The first is the throttle position sensor. I would check that..very easy all you need is a multimeter.


the second is a 39 which means failed torque converter that is related to the TPS


43 is ESC or electronic spark control. that I dont know exactly.

LakevilleSSEi 05-30-2006 12:17 AM

LOL....a lil different then 280K lol.

Anyways.....You flashed out a 22, 39, and 43 correct?

Your fans kick on to verify that the PCM has been tripped into diagnostic mode.

Damn it, I gotta go find my book, I'll post the codes up when I get it.

MnBonne 05-30-2006 12:17 AM

Stalling
 
So would be worth just taking it to the shop.

LakevilleSSEi 05-30-2006 12:19 AM


Originally Posted by Hans
The first is the throttle position sensor. I would check that..very easy all you need is a multimeter.


the second is a 39 which means failed torque converter that is related to the TPS


43 is ESC or electronic spark control. that I dont know exactly.

Nevermind.....

Do you have a chilton's manual for your car?

MnBonne 05-30-2006 12:21 AM

Stalling
 
No I just bought the car three weeeks ago.

LakevilleSSEi 05-30-2006 12:35 AM

I messaged a member that's more familiar with the 93's, as he know's them inside and out, so he should hopefully be chiming in here soon to help break these codes down for ya, and give ya some help with them.

Those chilton books are one great thing to have with these cars. They're about 20 bucks, and you can't go wrong with them :)

MnBonne 05-30-2006 12:39 AM

Stalling
 
Hey man I really appreciate the help. My wife is just dumb founded on how these clubs work. Thanks for everything!! :D

MnBonne 05-30-2006 12:40 AM

Stalling
 
By the way how do I tell what engine I have like the I L67 numbers?

LakevilleSSEi 05-30-2006 12:44 AM

I believe that you have the Series 1 L27.

http://www.bonnevilleclub.com/forum/...e=article&k=34

Read that page, that should show you the rundown of the RPO numbers for your engine.

willwren 05-30-2006 08:03 AM


Originally Posted by LakevilleSSEi

22, 39, and 43 correct?

22 is TPS. 92 should be adjustable. Try that first. You'll need a voltmeter at the very least or a scantool. You have to probe one wire (middle wire of the connector) for 0.2-0.74v at rest.

39 is a TCC (torque converter clutch) problem. What rpm's do you run at 55mph in OD? What does your trans fluid look and smell like?

43 is a knock sensor. Make sure it's connected. Otherwise replace it. It will not prevent you from starting or cause a stall. It will retard your timing by 10° until you fix it.

MnBonne 05-30-2006 05:05 PM

Stalling
 
Well I got the problem fixed. It turned out to be a TPS. Gouged me $180 bucks :cry: But what do you do. I really appreciate everyone's help. I just wish I would have found this site sooner. Thanks. :D

willwren 05-30-2006 05:23 PM

Ouch. That's 3x what I pay.

LakevilleSSEi 05-30-2006 05:53 PM

Did that fix ALL your posted issues?

MnBonne 05-30-2006 08:37 PM

Stalling
 
Yes, I was pretty amazed that just one sensor could causee that many problems. Now the car has some power. Now I can start cleaning it up.

LakevilleSSEi 05-30-2006 08:54 PM

Good glad to hear it, now get it cleaned up and get some good pics up here :)


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