97 bonnaville surging with the torque convertor locked - Page 17 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 06-18-2005, 08:30 PM   #161
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Is it free ?
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Old 06-19-2005, 03:40 AM   #162
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umm...no
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Old 07-31-2005, 12:38 PM   #163
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Hello

Read all these post'* with interest.

I purchased a Bonny 97 5 years ago. I purchased the extended warranty so was covered when the tranny started surging in OD.
In the first go around the dealership changed the TC.
Still surged.
Second go round the entire tranny was changed, new tranny from GM.
Still surged.
Final go around change out the TC soloniod
Problem fixed.

Now 3 years later the problem has reappeared. Sounds kinda strange that a TC solonoid would fail after 3 years twice.

Some have suggested replacing the transmission... that didn't help

Don't know what to do.

Has anyone figured this out... at least when I go to get soaked by the tranny guys I can say just fix this part???

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It only happens on Hot Days, on inclines.
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Old 07-31-2005, 12:38 PM   #164
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Hello

Read all these post'* with interest.

I purchased a Bonny 97 5 years ago. I purchased the extended warranty so was covered when the tranny started surging in OD.
In the first go around the dealership changed the TC.
Still surged.
Second go round the entire tranny was changed, new tranny from GM.
Still surged.
Final go around change out the TC soloniod
Problem fixed.

Now 3 years later the problem has reappeared. Sounds kinda strange that a TC solonoid would fail after 3 years twice.

Some have suggested replacing the transmission... that didn't help

Don't know what to do.

Has anyone figured this out... at least when I go to get soaked by the tranny guys I can say just fix this part???

CHCPMAN
It only happens on Hot Days, on inclines.
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Old 07-31-2005, 12:48 PM   #165
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I have read this thread with interest. This is a common problem with these cars. Mine has had it since I owned it....about 2 years now. It seems like it is an ignition problem. Mine only does it under certain conditions. Amazing GM doesnt have a fix for it! Well, they dont have a fix for the intake problem either....even considering this motor is in millions of cars. Although I see that the series 3 now has an aluminum intake....only took them 10 years to realize they had a problem and correct it there...much more serious than a chuggle.
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Old 08-01-2005, 03:06 PM   #166
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Yeah the intake thing is a more serious problem. I was fortunate, while under warranty the dealership told me that I should get this fixed as it is a problem. The service person didn't know the car was still under warranty... Sure sounds good I say.. put it under the cars warranty. Oops got a new intake cover for that. Hopefully it was the proper one as it was done in 2001.
The transmission thing is just annoying... My wife hates going on long drives with it. Even though I told here it is no big deal it doesn't matter... She wants to trade it in... I just bought a new car and don't want more payments.

I will take it one step at a time.
New plugs, transmission flush, tranny cooler, other smaller cost items.

The car has 150 K on it now so I really don't want to drop a bomb on it.

The real concern is a new transmission installed by GM under warranty at 80K solved the problem for 3 years... surly these trannys should last longer then 3 years... something else must be happening. This leads me to the thinning transmission oil as a result of not enough cooling.

Oh well Keep looking.

CHCPMAN
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Old 08-01-2005, 03:52 PM   #167
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When the ambient air temp is up in the 90s or more, my surging comes back when I'm going up long hills on the interstate. It ONLY happens when it'* really hot outside. Is it possible for a solenoid to be sensitive to heat like that?

Machomike- in the days and months leading up to your TC failure, what kinds of signs did your car exhibit that it was failing? Did you start to get the classic "slipping tranny" symptoms or did it merely surge until it finally threw the code? Also, did your gas mileage start to decline prior to TC failure, and were you running higher RPMs at any given speed than you used to? I'm just trying to gauge where I stand compared to your car. Thanks.
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Old 08-02-2005, 02:11 PM   #168
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There you have it. If the Solenoid fixed the problem the first time wouldn't this be the culprit now?
If it was still there after changing the tranny and TC why is everyone suspecting the trans.
Maybe the solenoid sticks when the fluid gets worn out, thin, and abrasive.
Which is why good shops add a fluid conditioner when changing the fluid.
I think GM makes one but don't quote me on that.
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Old 08-02-2005, 02:27 PM   #169
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Well the Solonoid does seem to be the problem.
The only problem is if GM changed the Tranny as they said wouldn't that have changed the soloniod as well. I looked on the tranny bell housing and it seemed to be bran spankin new. Supposedly the TCC solonoid is under that side housing. Not really sure exactly what GM changed especially after the problem is coming back after 3 years. The solonoid should last longer then that.
Did the usual little tune today... oil, filters PCV valve, spark plugs.
I guess it is take it one day at a time.

Perhaps when a shop changes the TCC solonoid they change the fluid as well, this new fluid is what is really solving the problem not the new tcc solonoid. If the problem persists the next step is to flush and replace the tranny fluid.
The older posters seemed to have gone away... I wonder if they got it fixed?

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Old 08-02-2005, 02:38 PM   #170
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Hi all...fellow 97 owner here. Thanks for scaring me.

I've heard a few different things since being on BC and think we have a common feel to multiple problems.

MAF and TB cleaning is always good and cost effective to try.

Tranny cooler as most experience the problem on the hotter days when engine and tranny temps would be higher.

Other ignition problems, plugs, wires. Standard tune up.

I'm going to send this thread in a PM to a new member that has a background with these cars and believe he may be able to shed some light for some of the issues causing surging.
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