'96 SE - WEIRD! Miss + Tranny slip + Speedometer bounce.... - Page 2 - 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.

Reply
 
 
 
Thread Tools Search this Thread
Old 09-06-2006, 12:12 PM   #11
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

Hi my electrically tortured friend..

Been there..hate that.

You pulled and checked the cables. Literally pulled and cleaned at both ends? Did you pull the boots at the battery end to look for corrosion underneath? (I ask because I learned the hard way ...while knowing better)

Check your ground busses under the carpet on the wiring harnesses up by both front doors. They have been known to cause all kinds of issues including stall.

Check wiring... pull all connectors like the ICM etc and ensure they are clean..corrosion free and making good contact.

It doesn't take long when you jump into it.

I had a hiccup/stall and restart issue.. ended up being some fine particles of metal that found my crankshaft sensor. While being the only known case on the club..it'* possible that something small is causing your issue.
BillBoost37 is offline   Reply With Quote
Old 09-06-2006, 09:00 PM   #12
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jul 2006
Location: West Virginia
Posts: 37
Thanks: 0
Thanked 0 Times in 0 Posts
mikeamondo is on a distinguished road
Default

Thanks for all the input.... glad to know it'* likely electrical and not tranny related! I'll end up taking the car to our mechanic tomorrow, and things got to hectic today to get to the test driving and cable cleaning. Sooooo... I'll pass on all the input to this guy (first time we've used him) and see what he comes up with. He'* already going to be doing the clunk thing, broken pully, coupler, etc..... really would have liked to dig into it myself, but there'* just no time.

I'll post the results after he takes a look!
mikeamondo is offline   Reply With Quote
Old 09-07-2006, 01:04 AM   #13
Senior Member
Posts like a Camaro
 
Join Date: Feb 2005
Location: Gilroy, California
Posts: 922
Thanks: 0
Thanked 0 Times in 0 Posts
Bob Dillon is on a distinguished road
Default

Quote:
There'* a massive "Clunk" when turning sharply in a parking lot (backing out of a space, for example, or starting to go forward again.)
]

Check that the brake caliper bolts aren't loose. 3/8" hex.
Bob Dillon is offline   Reply With Quote
Old 09-08-2006, 12:48 PM   #14
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jul 2006
Location: West Virginia
Posts: 37
Thanks: 0
Thanked 0 Times in 0 Posts
mikeamondo is on a distinguished road
Default

UPDATE!

Okay... so today I got a chance to test drive the car. First, I did the Shaky shaky.... shook the cables. Shook my arse. Did the Hokey Pokey and turned myself about. Nothin'. She just sat there, purring like a kitten.

So I headed out around town, watching the gauges like a hawk. After she reached operatiing temp at 190 for about 10 - 15 minutes, the problem reapeated itself in exactly the same manner as before.

The speedometer will begin to bounce just a little. Over the next 15 minutes, it will get progressively worse. Once fully developed, it will bounce (acutally, start to drop toward zero and then catch and go back up). When this occurs, the tranny will not shift properly and it feels like it'* missing a little. Then, every so often, normally while under a low or zero load, such as drifting downhill, the speedo drops to zero and she won't shift at all.... feels like it'* slipping. The speedo stays at zero from a couple seconds, then catches and zooms back up to the proper speed and the shifting goes back to normal.

Interestingly, after this had gone on for a while on a 2 lane road for a while, I took her back on the Interstate for a three mile drive to the next exit and she ran fine at 70... didn't miss a beat. Got off the Interstate for 2 miles back my office and it started up again, same as before........ And here'* the final piece of the puzzle. It is definately ONLY the speedometer. The oil pressure, battery meter and temp guage stayed pegged on their proper readings even as the speedo went to zero. And the tach only moved in accordance with what the engine was actually turning.... that is it bounced up and down as the tranny tried in vain to find the right gear.

Soooooo.... in my non-Pontiac-Guru mind, that leans more toward the VSS..... would anyone concur? I'll be taking the car to our mechanic in a couple hours, and would like some more well informed opinions before I go..... so after lunch, I'll check back to see if anyone'* had a chance to respond yet.

Thanks!
mikeamondo is offline   Reply With Quote
Old 09-08-2006, 01:29 PM   #15
BANNED
 
Join Date: Aug 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
banned3800 is on a distinguished road
Default

At this point I agree... Try replacing the VSS first... If that makes no diffrence then its time to have it checked out...

VSS is pretty easy to replace as well..

Also check the VSS and see if it has a lot of metal shavings on it as its a magnet or sorts...

__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
banned3800 is offline   Reply With Quote
Old 09-08-2006, 02:24 PM   #16
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

I'm leaning that direction now as well. Without the VSS input, the trans will not have the proper info to shift correctly.

What does your trans fluid look/smell like?
willwren is offline   Reply With Quote
Old 09-08-2006, 05:35 PM   #17
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jul 2006
Location: West Virginia
Posts: 37
Thanks: 0
Thanked 0 Times in 0 Posts
mikeamondo is on a distinguished road
Default

I checked it last week for fullness.... it was full. I didn't notice discoloration or smell, but I wasn't looking specifically for that. I dropped the car off at the mechanic this afternoon, with a list a full page long of problem. He said he'd calll tomorrow or the first of the week with a report. I'll post a follow up when I get the news.

--Mike
mikeamondo is offline   Reply With Quote
Old 09-13-2006, 11:14 PM   #18
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jul 2006
Location: West Virginia
Posts: 37
Thanks: 0
Thanked 0 Times in 0 Posts
mikeamondo is on a distinguished road
Default

UPDATE.... Mechanic called be back on this yesterday. Here'* the rundown....

The missing, sputtering, speedometer bouncing he attributes to VSS, though only a replacement will prove it true or not.

The 'CLUNK' noise turned out to be the brake line, which had come loose leading to the driver'* side wheel. It was getting caught under the "Boot"?, and then snapping back into place..... CLUNK!

The ever-present whine is the power steering pump, not the tranny... but it is full of fluid. He'* going to try some specail $11 magic juice to see if that helps... if not, I'm going to have him replace it. Can't take the whine.

All idler pulleys are being changed.

AC Compressor is toast, as expected. He'll flush the system and replace the dryer at the same time.

Total'* going to run over $1,200. But hopefully, the saga will come to an end, and I'll have a decent running, comfortable, quiet Bonnie again!
mikeamondo is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
weird weird and really weird 3064datazz 1992-1999 42 07-19-2007 02:03 PM
Rear tire wear, bounce at 55-65 mph bcs4 2000-2005 11 04-15-2006 11:35 AM
'98 Bonneville gauges bounce irradically and no heat. b6e2k5 1992-1999 12 01-14-2006 01:07 PM
bounce bounce harofreak00 General GM Chat 18 10-11-2004 10:29 PM
S/C Gauge bounce Red Baron Forced Induction 7 05-20-2003 02:26 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 12:34 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.