Drive by wire hesitation? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Bonneville GXP/ Northstar Powered Cars Discuss your Bonneville GXP and/or any other Northstar powered Olds or Cadillac... Including the 3.5L Twin Cam V6 (Short Star ) 4.0L and 4.6L Northstar V8's. Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 03-17-2006, 10:39 AM   #1
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jul 2005
Posts: 45
Thanks: 0
Thanked 0 Times in 0 Posts
GreystoneGXP is on a distinguished road
Default Drive by wire hesitation?

My wife ,who drives our '05 GXP most of the time, has a complaint. She says that once or twice a week, when she presses the accelerator, the car hesitates a split second before taking off. I asked her if the engine rev'd but the car didn't move, and she said 'No". I asked her if the car seemed to suddenly "slam" into gear or if the engine sputtered, and she said "No".

I know the N* is drive by wire, so I am assuming that the hesitation may be due to the TB. I need to drive the car myself and see if I can duplicate this problem. Any ideas on what might be causing this? The car only has 7k miles on it, should I try to clean the TB? Thanks for any advice you can give.
GreystoneGXP is offline   Reply With Quote
Old 03-17-2006, 01:29 PM   #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

I would quess oil fouling, a big issue with these motors, mine has its moments and I know theres a thread down below somewhere. But your not sure so to condense// try some WOT runs where you are safe doing so, AND please dont use GM'* recommendation to cram car in second gear at 80 MPH> which is the speed I get to for there recomended "technique" RPM.

The rings in this motor take forever to seat and they have to be "strecthed" to rattle at the uppermost region of the cylinder (I know that sounds queer but thats what GM says???) Mine has calmed down after many aggressive WOT and the tailpipes no longer spit ....

Also this is a ten-1 compression engine and I you use lower grade fuels you are going to have problems also. With 7000 miles hard to say it would be anything other than those two items. Plugs are good till 90,000 miles and the diagnostics would tell you of anything major.

Do you have your GM/ Onstar page up and registered?.They send me advanded diagnostics once a month,...and you can choose on demand once your page is set up. Put some premium in it, pour in a bottle of injecter cleaner and WOT, and see if it clears up.
P.*. watch the limiter in WOT,...it can be hit and does some strange things that are definetly not good with chain drive cams and valving that destroys the motor if ya snap one.
GXP Venom is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
connecting stock antenna wire to aftermarket antenna wire BarryBoy Audio (and aftermarket electronics) 0 12-02-2007 12:10 AM
Found an extra wire with 3 wire connector trigga_b 1992-1999 5 10-24-2007 06:28 PM
drive by wire firebuick General GM Chat 18 07-17-2007 12:34 PM
Drive by wire Shadow Bonneville GXP/ Northstar Powered Cars 2 04-19-2006 10:51 AM
Electrical Wire Wrap / Wire Looms Xac Xado Detailing & Appearance 3 07-28-2005 05:20 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 02:21 PM.


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.