Stalling While Idling Low Parking & Accellerating Going - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1987-1991 Parley with regards to your 1987 to 1991 Bonneville, Olds 88 or Buick Le Sabre Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 06-26-2005, 04:19 PM   #1
Junior Member
Thread Starter
 
Join Date: Jun 2005
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
BillyJoe is on a distinguished road
Default Stalling While Idling Low Parking & Accellerating Going

Hi All! New to the group but really need help :o

I have a 1990 Bonneville LE. Over the past few weeks it has run rough and the RPM gauge has been intermittently working (going to 0 even though car is accelerating fine). In the past two days it has been stalling. I have to give it a good 40-80 seconds before it will startup again.

It stalls while in the parking lot, it stalls while accellerating on the highway. I've checked the computer and there are no error codes registering.

I replaced the sparkplugs and cables yesterday but am still having the same issue. Not sure if the RPM gauge problem is even related.


Anyone have any ideas? All posts appreciated.
BillyJoe is offline   Reply With Quote
Old 06-26-2005, 04:23 PM   #2
Senior Member
True Car Nut
 
Join Date: Jun 2003
Location: Purgatory
Posts: 6,313
Thanks: 0
Thanked 0 Times in 0 Posts
PontiacDad is on a distinguished road
Default

Sounds like a vacum leak, check all the hoses.
Look in tech info for a guide on how to remove the gauge cluster and clean the connections, might help your tach out?
PontiacDad is offline   Reply With Quote
Old 06-26-2005, 04:48 PM   #3
Senior Member
True Car Nut
 
Join Date: Apr 2004
Location: Three Oaks, Michigan
Posts: 4,879
Thanks: 0
Thanked 0 Times in 0 Posts
opensourceguy is on a distinguished road
Default

Loose connector to the ICM. Hands down. Pull it [I want to say it'* a 6mm bolt.. but I don't know off hand, it'* a small one, that'* for sure], clean all contacts, put some die-electric grease on there. Tighten snug [no need to overdue it. The bolt MUST be tightened for the connector to seat properly, you cannot just push it on like most other connectors.


-justin
opensourceguy is offline   Reply With Quote
Old 06-26-2005, 06:24 PM   #4
Junior Member
Thread Starter
 
Join Date: Jun 2005
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
BillyJoe is on a distinguished road
Default

Thanks guys.

Just got back from checking for gas in the fuel pressure regulator'* vac hose but no gase (was suggested in the newsgroups). Did this while it was off - should car be running?

Anyways, going to remove the ICM bolt and clean see if that makes a difference. Could also be a bad wire in one of the connections leading to it? Anyways, will try. Then move on to hose troubleshooting.
BillyJoe is offline   Reply With Quote
Old 06-26-2005, 06:27 PM   #5
Senior Member
True Car Nut
 
Join Date: Apr 2004
Location: Three Oaks, Michigan
Posts: 4,879
Thanks: 0
Thanked 0 Times in 0 Posts
opensourceguy is on a distinguished road
Default

Yeah, it could be one bad wire, but the ICM controls the tach, and you said it stalls intermittently. The only thing that can be both, is the ICM or a ground, but a ground would kill the engine if the tach went out [ECU and ICM use same grounds {don't forget, the ICM controls the tach}].


-justin
opensourceguy is offline   Reply With Quote
Old 06-26-2005, 07:14 PM   #6
Junior Member
Thread Starter
 
Join Date: Jun 2005
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
BillyJoe is on a distinguished road
Default

Removed and reconnected the ICM but the bolt was really tight before... will take for test drive and see what happens now.
BillyJoe is offline   Reply With Quote
Old 06-27-2005, 01:09 AM   #7
Junior Member
Thread Starter
 
Join Date: Jun 2005
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
BillyJoe is on a distinguished road
Default

So far no stall! Crossing my fingers and will post follow up in a few days. Thanks
BillyJoe is offline   Reply With Quote
Old 06-28-2005, 02:18 PM   #8
Junior Member
Thread Starter
 
Join Date: Jun 2005
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
BillyJoe is on a distinguished road
Default

That did the trick! You saved me quite the bit of money. Many thanks knowledgeable one - great call!
BillyJoe is offline   Reply With Quote
Old 06-28-2005, 02:49 PM   #9
Senior Member
True Car Nut
 
Join Date: Apr 2004
Location: Three Oaks, Michigan
Posts: 4,879
Thanks: 0
Thanked 0 Times in 0 Posts
opensourceguy is on a distinguished road
Default

You are very welcome. Enjoy your newfound reliability .


-justin
opensourceguy is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Stalling only when idling? 03 grand prix GT Ktm722 Pontiac 9 06-28-2015 02:30 AM
Stalling While Idling Tracie64 2000-2005 4 09-17-2009 11:38 PM
91 Bonn. Rough/fluctuating idling - stalling orbit79 1987-1991 8 10-13-2007 05:30 PM
$&)$&*)#&+()#%& )#@(%&#)%*(&+_ Maymybonnieliveforevr Lounge 6 05-02-2007 07:07 PM
Stalling when idling and driving Please help! snow4frog 1987-1991 8 02-26-2006 12:48 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 12:33 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.