Hesitation Problems - 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 07-15-2008, 12:54 AM   #1
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jul 2008
Location: Burnsville Minnesota
Posts: 33
Thanks: 0
Thanked 0 Times in 0 Posts
scruggelgreen is on a distinguished road
Question Hesitation Problems

I recently have been having hesitation problems with my 2002 Bonneville SSEI. When i go to accelerate (25-40% Throttle) the car will hesitate a fair amount, once the RPM'* get somewhere above 2700 the car will regain its power and take off for the most part like normal. When i scan the car with my AutoTAP scan tool i notice that the Long Trim Fuel Percent runs at about 5-10%. I tried cleaning the MAF which seemed to help a little bit. I put in one can of seafoam cleaner into the tank, and that didnt help very much (But i havent burnt the whole tank of gas yet, so that might change). My O2 sensors appear to be working correctly. And for the most part of what i can tell all of the other sensors are functioning normally. I have been having problems with the sticky Delco Pressure control solenoid in my transmission, after replacing the transmission fluid and filter that issue has largely gone away. Maybe thats part of it???? So im a bit lost now, any help would be greatly appreciated. I can provide graphs of data for troubleshooting purposes if needed.
scruggelgreen is offline   Reply With Quote
Old 07-17-2008, 10:56 AM   #2
Administratus Emeritus
Certified Car Nut
 
GXP Venom's Avatar
 
Join Date: Jan 2006
Location: Purgatory, Pennsylvania
Posts: 16,538
Thanked 7 Times in 4 Posts
GXP Venom is on a distinguished road
Default

Have you checked your Fuel pressure? Plugs/coils, vacuum lines?
GXP Venom is offline   Reply With Quote
Old 07-17-2008, 11:29 AM   #3
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

Plugs and wires account for a good chunk of problems. I'm with John on checking/replacing if they are old.
BillBoost37 is offline   Reply With Quote
Old 07-22-2008, 02:54 PM   #4
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jul 2008
Location: Burnsville Minnesota
Posts: 33
Thanks: 0
Thanked 0 Times in 0 Posts
scruggelgreen is on a distinguished road
Default

Well i tried using some "STP" injector cleaner and i noticed a very large difference after about 30 miles of driving. Also now that i think about it i started experiencing these problems right after i filled up just like Joe Papworth'* Bonneville. Must have just been a bad fill up of gas. Thanks for your help guys!
scruggelgreen is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
'93 Bonnevile engine performance problems - hesitation marathon26 1992-1999 7 03-12-2007 11:16 AM
Problems, Problems, Problems... swartlkk 2000-2005 2 11-04-2005 08:57 PM
problems, problems, problems big_boss2010 1992-1999 15 04-25-2004 09:05 PM
Is this the hesitation everyone talks about?? Daron97SSE 1992-1999 5 10-04-2002 10:49 PM
hesitation from 3rd to 4th gear ?? Drifter420 1992-1999 10 08-14-2002 08:24 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 01:51 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.