Jeep Cherokee Forum

Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here! ZJ (93-98), WJ (99-04), WK (05+)
All ZJ/WJ/WK specific tech questions asked here!

quick idol question

Thread Tools
 
Search this Thread
 
Old 06-13-2009, 09:06 PM
  #1  
Junior Member
Thread Starter
 
taterguy05's Avatar
 
Join Date: Jun 2009
Posts: 80
Likes: 0
Received 0 Likes on 0 Posts
Year: 1998
Model: Grand Cherokee
Engine: 4.0
Default quick idol question
sorry if some of my ?'s are farfetched, this is my forst jeep and i just got it 3 days ago...

ok in park it idles at 700-800, thats seems reasonable to me, or so when i tap the gas really QUICK and release the gas pedal, the RPMs go to about 100-200 and acts liek it will shut off but then returns to 700-800.... why would it do that, shouldnt it go back to 700-800 even when i tap the gas really quick?
taterguy05 is offline  
Reply Like
Old 06-13-2009, 09:16 PM
  #2  
Senior Member
 
parkerbabco's Avatar
 
Join Date: Dec 2008
Location: Punxsutawney Pennsylvania
Posts: 831
Likes: 0
Received 1 Like on 1 Post
Year: 1988
Model: Cherokee
Engine: Renix 4.0 I6
Default
so they just go down and feel like its gonna die then slowly goes back up?
parkerbabco is offline  
Reply Like
Old 06-13-2009, 09:35 PM
  #3  
CF Veteran
 
ol"blue's Avatar
 
Join Date: Mar 2009
Location: Tenn. and Mich.
Posts: 28,068
Likes: 0
Received 6 Likes on 6 Posts
Year: 2004
Model: Grand Cherokee
Engine: 4.7L V8
Default
What engine have you got there tater?
ol"blue is offline  
Reply Like
Old 06-13-2009, 09:49 PM
  #4  
Junior Member
Thread Starter
 
taterguy05's Avatar
 
Join Date: Jun 2009
Posts: 80
Likes: 0
Received 0 Likes on 0 Posts
Year: 1998
Model: Grand Cherokee
Engine: 4.0
Default
yes as soon as i tap the gas really quick the rpms shoot up as expected but as they return down it goes really low and acts like it wants to turn off and slowly comes back too.... also i have the V6 motor
taterguy05 is offline  
Reply Like
Old 06-13-2009, 10:03 PM
  #5  
CF Veteran
 
ol"blue's Avatar
 
Join Date: Mar 2009
Location: Tenn. and Mich.
Posts: 28,068
Likes: 0
Received 6 Likes on 6 Posts
Year: 2004
Model: Grand Cherokee
Engine: 4.7L V8
Default
It's an I6, and you might want to check the TPS there tater. Is that your nickname or what?
ol"blue is offline  
Reply Like
Old 06-13-2009, 10:13 PM
  #6  
Junior Member
Thread Starter
 
taterguy05's Avatar
 
Join Date: Jun 2009
Posts: 80
Likes: 0
Received 0 Likes on 0 Posts
Year: 1998
Model: Grand Cherokee
Engine: 4.0
Default
haha yes its a nickname LOL, ill cehck it out, i have no check engine lights, does that matter ?
taterguy05 is offline  
Reply Like
Old 06-13-2009, 10:16 PM
  #7  
CF Veteran
 
ol"blue's Avatar
 
Join Date: Mar 2009
Location: Tenn. and Mich.
Posts: 28,068
Likes: 0
Received 6 Likes on 6 Posts
Year: 2004
Model: Grand Cherokee
Engine: 4.7L V8
Default
What year is it? You should list info in your profile.
ol"blue is offline  
Reply Like

Trending Topics

Old 06-13-2009, 10:19 PM
  #8  
Junior Member
Thread Starter
 
taterguy05's Avatar
 
Join Date: Jun 2009
Posts: 80
Likes: 0
Received 0 Likes on 0 Posts
Year: 1998
Model: Grand Cherokee
Engine: 4.0
Default
its a stock 1998 GC SE Laredo V6
taterguy05 is offline  
Reply Like
Old 06-13-2009, 10:25 PM
  #9  
Senior Member
 
seed's Avatar
 
Join Date: Sep 2008
Location: pa
Posts: 772
Likes: 0
Received 5 Likes on 3 Posts
Year: 2000
Model: Grand Cherokee
Engine: 4.0
Default
Originally Posted by taterguy05
its a stock 1998 GC SE Laredo V6
lol........

like blue said check you tps,iac maybe clean the throttle body...does it have any other issues driveability wise?
seed is offline  
Reply Like
Old 06-13-2009, 10:28 PM
  #10  
Junior Member
Thread Starter
 
taterguy05's Avatar
 
Join Date: Jun 2009
Posts: 80
Likes: 0
Received 0 Likes on 0 Posts
Year: 1998
Model: Grand Cherokee
Engine: 4.0
Default
no drives great, though it does have an exhaust raddle, VERY ANNOYOING, and cant find it lol, kinda sounds like its near the Catolytic converter, but idk
taterguy05 is offline  
Reply Like
Old 06-13-2009, 10:30 PM
  #11  
CF Veteran
 
ol"blue's Avatar
 
Join Date: Mar 2009
Location: Tenn. and Mich.
Posts: 28,068
Likes: 0
Received 6 Likes on 6 Posts
Year: 2004
Model: Grand Cherokee
Engine: 4.7L V8
Default
Try checking to see if any codes are stored. Here's how.>->Jeep Horizons :: View topic - Jeep Computer codes (OBDI & OBDII)
ol"blue is offline  
Reply Like
Old 06-13-2009, 10:31 PM
  #12  
Junior Member
Thread Starter
 
taterguy05's Avatar
 
Join Date: Jun 2009
Posts: 80
Likes: 0
Received 0 Likes on 0 Posts
Year: 1998
Model: Grand Cherokee
Engine: 4.0
Default
there wouldnt be any codes my man, there isnt a check engine light, correct me if im wronge
taterguy05 is offline  
Reply Like
Old 06-13-2009, 10:35 PM
  #13  
CF Veteran
 
ol"blue's Avatar
 
Join Date: Mar 2009
Location: Tenn. and Mich.
Posts: 28,068
Likes: 0
Received 6 Likes on 6 Posts
Year: 2004
Model: Grand Cherokee
Engine: 4.7L V8
Default
Originally Posted by taterguy05
no drives great, though it does have an exhaust raddle, VERY ANNOYOING, and cant find it lol, kinda sounds like its near the Catolytic converter, but idk
That could be the heat shield covering the converter, or it could be the catalyst inside breaking up. JMO
ol"blue is offline  
Reply Like
Old 06-13-2009, 10:39 PM
  #14  
Junior Member
Thread Starter
 
taterguy05's Avatar
 
Join Date: Jun 2009
Posts: 80
Likes: 0
Received 0 Likes on 0 Posts
Year: 1998
Model: Grand Cherokee
Engine: 4.0
Default
can i GUT my cat? or just buy an aftermarket one
taterguy05 is offline  
Reply Like
Old 06-13-2009, 10:39 PM
  #15  
CF Veteran
 
ol"blue's Avatar
 
Join Date: Mar 2009
Location: Tenn. and Mich.
Posts: 28,068
Likes: 0
Received 6 Likes on 6 Posts
Year: 2004
Model: Grand Cherokee
Engine: 4.7L V8
Default
Originally Posted by taterguy05
there wouldnt be any codes my man, there isnt a check engine light, correct me if im wronge
My '97 Grand Cherokee has a light, but when you do the code retrieval it uses the digital odometer numbers to display the codes. That works up to '99 at least. I know what I'm talking about tater. (see below)
Edit:The key code-retrieval trick doesn't work for '98's.(Thanks seed)

Edit:Buy an aftermarket cat, that's what I did for my '97.
Last edited by ol"blue; 06-14-2009 at 09:24 PM.
ol"blue is offline  
Reply Like



Advanced Search
Quick Reply: quick idol question


Reply Closed Thread Share

All times are GMT -5. The time now is 09:54 AM.