Automotive Forums .com - the leading automotive community online! Visit IgorSushko.com and see what it's like racing in Japan
-
Google  
Web AF
See Latest Posts
Access AF from your phone - point your mobile browser to http://m.automotiveforums.com
Go Back   Automotive Forums .com Car Chat > Chevrolet > Cavalier > Cavalier Problem Diagnosis
Cavalier Problem Diagnosis Got a problem you can't fix? We can help.
Reply Show Printable Version Show Printable Version | Email this Page Email this Page | Subscription Subscribe to this Thread
 
Thread Tools
Old 03-16-2008, 06:40 PM   #1
An_toin3
AF Newbie
 
Join Date: Sep 2007
Location: Rimouski
Posts: 4
An_toin3 Normal reputation
Sunfire GT 98 2.4L jerking, need help !

Alright, here's the problem
I recently had an accident, guy cuts me at the last minutes, it was on snow, no choice to go straight into his car !

A new problem came up since then !, car started to jerk, as if it was missing gaz, but it's not !, does this rarely, like 2or 3 times in 2 days and always when i'm on 3rd,4th or 5th gear reving at about 1500rpm, car should normally force while it starts to rev up more ! that's when the jerk part comes in, the car forces to go forward and the car will jerk 1 or 2 times in a row then it is okay !

now, fuel filter has been changer, air filter seems to be clean ! only thing remaining, sparks plugs ? (the car now has 160 000km on it) sparks plugs wires which doesn't seem to exist on these motor ?

I removed the head, (thing with 2.4L twin cam written on it !), i see the spark plugs, and a kind of weird thing "T" shaped that goes into the plugs and there seems to an electrical module too ? what's the purpose of that thing ? what if it's defective, could this be what's causing my problem ?

sorry for the essay, just needed to clarify a few things
Thanks

I know it's cavalier forum, but since it's the same thing as a Z24.. why not ask it here too !
An_toin3 is offline   Reply With Quote
Old 03-16-2008, 11:58 PM   #2
Jacfourteen
AF Regular
 
Join Date: Feb 2008
Location: oroville, California
Posts: 187
Jacfourteen Normal reputation
Re: Sunfire GT 98 2.4L jerking, need help !

The "head" you were referring to is actually the ignition cover, the module on the underside is the coil pack, they connect directly to the spark plugs, that is why there are no spark plug wires. I'd check the vacuum lines, especially the one leading to the MAP sensor (mounted on the frontside of the throttle body), the vac line on my MAP sensor was split and it caused some hesitation and bucking. hope this helps!
__________________
99 Explorer (my daily driver)
-2" lift, 31" tires
-Magnaflow muffler
-7" Touch screen DVD stereo
-12" drop down LCD monitor
02 Mustang Convertible (wife's)
-K&N Filter
-Flowmaster 50
-7" Touch screen DVD stereo
68 GMC (project)
-300 HP 350
Jacfourteen is offline   Reply With Quote
 
 
 
 
Reply

POST REPLY TO THIS THREAD


Bookmarks
Go Back   Automotive Forums .com Car Chat > Chevrolet > Cavalier > Cavalier Problem Diagnosis

« Previous Thread | Next Thread »
Thread Tools

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 12:57 AM.

Google  
Web AF
Community Participation Guidelines | How to use your User Control Panel

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