-
Grand Future Air Dried Beef Dog Food

Carnivore Diet for Dogs

Air Dried Dog Food | Real Beef
Go Back   Automotive Forums Car Chat > Pontiac > Grand AM
Register FAQ Community
Reply Show Printable Version Show Printable Version | Subscription Subscribe to this Thread
 
Thread Tools
  #1  
Old 04-10-2007, 10:30 PM
gersus gersus is offline
AF Newbie
 
Join Date: Apr 2007
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
Stalling on highway


I'm having a wierd problem with my GA (2000, 2.4l). After 20 miles or so of highway driving the engine starts to slightly flutter, then quits responding to throttle and slowly deccelerates until about idle, then flutters for a few seconds and finally dies. There is nothing I can do once it starts but pull over. I then shut the car off and after 2 minutes or so it starts right up like nothin ever happened. From there its good for a few more miles where it does the same thing again but within a shorter distance, say 10 miles. If I try to start it up immediately after it dies it spits and backfires and such. Other than that it idles and drives great!

I changed the fuel filter in hopes of having an easy fix but that didn't help any. The service engine light never came on until after I replaced the filter, .

This has been a great car up until now. Any help would be greatly appreciated!!!
Thanks
Reply With Quote
  #2  
Old 04-11-2007, 06:40 AM
crazy Jim's Avatar
crazy Jim crazy Jim is offline
AF Enthusiast
 
Join Date: Nov 2005
Posts: 505
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Stalling on highway

I'd rig up a fuel pressure guage and watch and see if the pressure drop off just before the engine begines to fluctuate. One other thing would be a crank position sensor crapping out, although I'm not sure if your engine uses one.
__________________
master airframe mech/shadetree auto mech/30+ years experience

current vehicles:
'02 Impala LS 3.8L
'02 Trans Am WS6 LS1 6spd
'99 Grand Am SE 3.4L
'71 Cutlass SX 455/TH400
'04 YZ450F
'07 Kona Garbonzo (dowwnhill mountain bike)
Reply With Quote
  #3  
Old 05-07-2007, 11:59 AM
tjsmith_209 tjsmith_209 is offline
AF Newbie
 
Join Date: May 2007
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Stalling on highway

Quote:
Originally Posted by gersus

I'm having a wierd problem with my GA (2000, 2.4l). After 20 miles or so of highway driving the engine starts to slightly flutter, then quits responding to throttle and slowly deccelerates until about idle, then flutters for a few seconds and finally dies. There is nothing I can do once it starts but pull over. I then shut the car off and after 2 minutes or so it starts right up like nothin ever happened. From there its good for a few more miles where it does the same thing again but within a shorter distance, say 10 miles. If I try to start it up immediately after it dies it spits and backfires and such. Other than that it idles and drives great!

I changed the fuel filter in hopes of having an easy fix but that didn't help any. The service engine light never came on until after I replaced the filter, .
This has been a great car up until now. Any help would be greatly appreciated!!!
Thanks
OMG! I have had this same problem. If you have fould the solution please let me know.
Reply With Quote
  #4  
Old 05-07-2007, 06:17 PM
xeroinfinity's Avatar
xeroinfinity xeroinfinity is offline
out saving the world
 
Join Date: Jul 2005
Posts: 10,707
Thanks: 8
Thanked 18 Times in 18 Posts
Re: Stalling on highway

Welcome to AF guys !

gersus, could be many things causing your troubles.

A Faulty IAC, contaminated fuel, damaged(or wet) ignitions wires and thier components , bad plugs or incorrectly gapped, a vacum leak at the intake manifold or plenum(cracked hoses).

Might not hurt to get it scanned with a good scan tool.
And as Jim said check your fuel pressure.

Hope that helps.
__________________
1999 Grand Am SS 3.4 OHV
Reply With Quote
 
Reply

POST REPLY TO THIS THREAD

Go Back   Automotive Forums Car Chat > Pontiac > Grand AM


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



All times are GMT -5. The time now is 02:43 PM.

Community Participation Guidelines | How to use your User Control Panel

Powered by: vBulletin | Copyright Jelsoft Enterprises Ltd.
 
 
no new posts