# 2002 Dodge Intrepid **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** intrepid, dodge\ **Created:** [February 5, 2011, 12:28am UTC](https://community.cartalk.com/t/2002-dodge-intrepid/60897 "2011-02-05T00:28:49Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![leeman84](https://avatars.discourse-cdn.com/v4/letter/l/45deac/32.png) [@leeman84](https://community.cartalk.com/u/leeman84)\ **Post date:** [February 5, 2011, 12:28am UTC](https://community.cartalk.com/t/2002-dodge-intrepid/60897/1 "2011-02-05T00:28:49Z")
Weird prob with this car. It starts ok but usually (90-95% of time) runs rough when I reduce pressure on the accelerator. During this time, the cruise control will not work; the cruise light doesn’t even come on. However, about 5-10% of the time the car runs fine and the cruise control works. Not sure how these two are related. Help! ---
**Author:** ![mcparadise](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mcparadise/32/32_2.png) [@mcparadise](https://community.cartalk.com/u/mcparadise)\ **Post date:** [February 5, 2011, 12:35am UTC](https://community.cartalk.com/t/2002-dodge-intrepid/60897/2 "2011-02-05T00:35:24Z")
Is the Check Engine Light on? How many miles on this Intrepid? What’s its maintenance history? Have you taken the car to a mechanic for this problem? ---
**Author:** ![leeman84](https://avatars.discourse-cdn.com/v4/letter/l/45deac/32.png) [@leeman84](https://community.cartalk.com/u/leeman84)\ **Post date:** [February 5, 2011, 3:40am UTC](https://community.cartalk.com/t/2002-dodge-intrepid/60897/3 "2011-02-05T03:40:42Z")
Yes, took it to the mechanic and replaced the O2 sensor. 145000 miles, maintenance is good for the last $50,000 miles whioh is when we got it. No other major problems. Thinking of replacing the MAP sensor next, and a Dodge mechanic also suggested it could be a simple brake relay switch which is misfiring, leading to both the cruise not working and the car running poorly. this seems a bit of a stretch to me, but it is a cheap thing to fix so I am going to try this too. ---
**Author:** ![oblivion](https://avatars.discourse-cdn.com/v4/letter/o/3ab097/32.png) [@oblivion](https://community.cartalk.com/u/oblivion)\ **Post date:** [February 5, 2011, 7:57am UTC](https://community.cartalk.com/t/2002-dodge-intrepid/60897/4 "2011-02-05T07:57:31Z")
It sounds like you may have a bad vacuum leak somewhere. Possibly in one of the lines leading from a solenoid that controls part of your emission control system, or maybe the one that goes to the cruise control actuator. I would visually inspect all the vacuum lines for a leak. The MAP sensor works off engine vacuum too, so if you’re getting a code related to this, it may still be a vacuum leak. I don’t see how a “brake relay switch” would make the car run poorly. If the check engine light is lit, what codes are coming up? ---
**Author:** ![system](https://global.discourse-cdn.com/cartalk/original/3X/1/d/1d47c66a543aa6c5a7873bb2320858f978ff52ed.png) [@system](https://community.cartalk.com/u/system)\ **Post date:** [February 5, 2011, 2:23pm UTC](https://community.cartalk.com/t/2002-dodge-intrepid/60897/5 "2011-02-05T14:23:12Z")
If this engine has an EGR valve, it could be stuck open causing low vacuum. ---
**Author:** ![BustedKnuckles](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bustedknuckles/32/25_2.png) [@BustedKnuckles](https://community.cartalk.com/u/BustedKnuckles)\ **Post date:** [February 5, 2011, 2:30pm UTC](https://community.cartalk.com/t/2002-dodge-intrepid/60897/6 "2011-02-05T14:30:55Z")
Throwing parts at it without determining if it is really a problem is going to get expensive quickly. If the CEL is or was on, why not share the codes with us? We can give further insight with the codes.