Engine bucking

Tiny
ROYSINTREPID
  • MEMBER
  • DODGE INTREPID
I have a 2002 Dodge Intrepid SE (2.7L V6) with just under 66,000 miles on it. For the past 6 months the check engine light would come on, sometimes for days, then go off for days or weeks. I took it in to the dealership once, but the light would not come on. Recently, it has also taken to bucking. When the RPMs get a little above 2000 and accelerating (even mildly), the car jerks violently and loses speed. I know this has happened to other people because a man (who owned a 2002 intrepid and noticed mine) asked me if my car was behaving that way sometimes. At that time I did not have any such problems. This is becoming a safety hazard. It doesn't seem to switch into this mode unless starting the car or trying to pull out from idle, such as on a metered on-ramp. Most times, turning the engine off and restarting fixes the bucking problem, but the check engine light will stay on. It never bucks without the check engine light being on, but the check engine light can be on without it performing its wild bronco act. While in the bucking mode, I can accelerate as fast as I want so long as I keep the RPMs below 2000. I can also get above 2000 by going downhill and it seems okay to maintain at that engine speed. The problem is still intermittant. It can go for days without this happening. I need something to discuss with the service manager at the dealer. If you have heard of this type of problem with the Intrepid, please let me know wherein lies the problem.
Thank You
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Wednesday, January 31st, 2007 AT 8:02 PM

3 Replies

Tiny
CARUNDELL
  • MECHANIC
  • 602 POSTS
Hey Roy,
Quite a few things could be going on! Lets start with this. Have you ever had the vehicle scanned and been given any service code(s)? If so, please post the code numbers and code descriptions and I'll be able to help more! If not, several major parts suppliers will do this for free and you can get that information. Let us know!

Chris
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Thursday, February 1st, 2007 AT 5:14 AM
Tiny
ROYSINTREPID
  • MEMBER
  • 2 POSTS
I took it into the dealer's shop once, but the problem went away before I got there. Consequently I don't have any codes to report. That is why I am searching for someone who has seen these symptoms and had the problem successfully repaired. Right now the check engine light is off and the car is running fine.
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Thursday, February 1st, 2007 AT 9:04 PM
Tiny
CARUNDELL
  • MECHANIC
  • 602 POSTS
I took it into the dealer's shop once, but the problem went away before I got there. Consequently I don't have any codes to report. That is why I am searching for someone who has seen these symptoms and had the problem successfully repaired. Right now the check engine light is off and the car is running fine.[/Quote:2b420df095]

Roy,
Thats a tough call, though it surprises me that when the dealer scanned it he found no codes. A misfire would set a hard code and it would be stored in memory. Will do a bit more research on this one and let you know asap!

Chris
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Friday, February 2nd, 2007 AT 4:25 AM

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