Help! Weird Sputtering on 2000; only when warm. - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


2000-2005 Discuss your 2000-2005 Bonneville SE, SLE, and SSEi Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 10-05-2010, 01:25 PM   #1
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Oct 2010
Posts: 18
Thanks: 0
Thanked 0 Times in 0 Posts
baldeville is on a distinguished road
Default Help! Weird Sputtering on 2000; only when warm.

Hey guys please help,

This is my first post though I have been reading the forum for a while trying to figure out what'* wrong with my wife'* bonne. It'* a 2000 with about 150k on it.

It runs and drives like a champ until its warm; then it starts sputtering and loosing power. It feels like it is running out of gas and sometimes the tach drops to zero but it still drives (kind of). I changed the fuel filter but it didn't help. It threw a code for a cam sensor and I changed that and it didn't help either. That was the only code and it only came up a couple times.

Also, it seemed to start going bad kind of slowly. At first it would only sputter for a second on the interstate when going over 70. Then it started doing it a slower speeds. Now, as soon it warms up, with the temp gauge right in the middle (doesn't over heat), it does it at any speed when accelerating. No problems starting at all. When the tach drops to 0, you can pull over and restart it and the tach resets.

Nobody around here really wants to work on it so I am kind of stuck. I could have it towed to GM but they want a fortune. Any help you could give would be INCREDIBLY appreciated. I'm not much of a mechanic but with the help of YouTube I have been able to figure out how to do the simple stuff. I'm hoping someone has had a similar problem and can help me figure it out. Thanks in advance!
baldeville is offline   Reply With Quote
Old 10-05-2010, 01:29 PM   #2
Senior Member
Posts like a Corvette
 
Nighthwk12's Avatar
 
Join Date: Feb 2009
Location: Jersey Shore
Posts: 1,511
Thanks: 0
Thanked 0 Times in 0 Posts
Nighthwk12 is on a distinguished road
Default

I'd take some carb/intake clearer and spray your vacumme hoses. You might have a leak there. Also this could be a LIM situation. Does your exhaust smell sweet after your car warms up?
Nighthwk12 is offline   Reply With Quote
Old 10-05-2010, 01:29 PM   #3
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

Test your coils. I suspect you have a bad one, but only when it'* warmed up.
Danthurs is offline   Reply With Quote
Old 10-05-2010, 01:40 PM   #4
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Oct 2010
Posts: 18
Thanks: 0
Thanked 0 Times in 0 Posts
baldeville is on a distinguished road
Default

I just youtubed a coil test in which you use a little piece of vacuum hose to test the spark. Will that work for this? Also I haven't noticed any sweet smell.

I will look up how to check vacuum lines next and try both of those first.

You guys are fast! Thanks again!
baldeville is offline   Reply With Quote
Old 10-05-2010, 01:42 PM   #5
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

There is a coil test in the tech info section here off the main menu. Just look in testing.
Danthurs is offline   Reply With Quote
Old 10-05-2010, 02:30 PM   #6
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Oct 2010
Posts: 18
Thanks: 0
Thanked 0 Times in 0 Posts
baldeville is on a distinguished road
Default

I think it is the middle coil! I followed the guide and it read higher on the top terminals than the other two and on the bottom connections it read 0.0. I am going to go grab a new one after lunch and I will let you know how it goes. Thanks again!!!!
baldeville is offline   Reply With Quote
Old 10-05-2010, 02:40 PM   #7
Senior Member
Posts like a Corvette
 
Nighthwk12's Avatar
 
Join Date: Feb 2009
Location: Jersey Shore
Posts: 1,511
Thanks: 0
Thanked 0 Times in 0 Posts
Nighthwk12 is on a distinguished road
Default

Becareful when loosening and tightening the bolts to the coil. They are small and easily broken if not careful. Also be sure to put some dieletric grease on the bottom and top terminals to protect from moisture.
Nighthwk12 is offline   Reply With Quote
Old 10-05-2010, 02:43 PM   #8
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

Yep, that one is dead. As mentioned, be careful. The bolts go in to aluminum and strip easy. Just snug.
Danthurs is offline   Reply With Quote
Old 10-05-2010, 04:21 PM   #9
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Oct 2010
Posts: 18
Thanks: 0
Thanked 0 Times in 0 Posts
baldeville is on a distinguished road
Default

I had autozone test the coil too and they also determined it was bad. I swapped it out and drove around to it warmed up. It seemed to run a little bit better but when it got hot it started sputtering again. I checked the ohms on the top of the coils again and the middle one was still a little higher (9.x). Could that mean the ICM? I also saw some white smoke when I first started it and kind of thought it smelt kind of sweet; but I really don't know how to tell. I'm not a good judge of the sweetness level.

Any ideas on what to try next?
baldeville is offline   Reply With Quote
Old 10-05-2010, 05:43 PM   #10
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

Pull the spark plugs and inspect them. Look for any differences in the tips. All shoudl be clean with a slight gray color.
Danthurs is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
2000 LeSabre engine sputtering out scottydl Buick 7 08-22-2015 12:12 PM
97 Bonneville SE stalls when warm, only at idle ninjaman 1992-1999 9 10-01-2009 12:39 AM
2000 SE - Intermittent Sputtering, No Codes Hans 2000-2005 3 10-11-2007 09:42 AM
weird weird and really weird 3064datazz 1992-1999 42 07-19-2007 02:03 PM
I have lost my over drive but only when warm FIXED!!!!!!!! doo700 1992-1999 69 08-06-2004 01:36 AM


Tags
2000 bonneville, cam sensor error, sputters, tach drops, warm

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 02:42 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.