Question about 2000 Jeep Grand Cherokee

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When i start my jeep in the cold mornings it starts up but bogs right down and stalls then i have to accelerate for the second start up for a few minutes to warm it up a little and then it bogs and stays at a low idle until warms up but why wont it stay started it just keeps stalling and bogging down to low idles?!!??

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  • Jeep Master
  • 1,811 Answers

Your only problem friend, is the temperature sending unit/sensor. Upon cold start, this sensor wil tell the computer to go into cold start mode putting a bit more fuel in and raising the idle a bit to keep it running when cold without using the throttle. Replace that sensor and your good to go. Makes sense, right?

Posted on Dec 07, 2017

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6 Suggested Answers

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6ya staff

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Posted on Jan 02, 2017

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Anonymous

  • 702 Answers

SOURCE: Stalls when engne warms up

Your ECT (Engine Coolant Temp) sensor is bad. What's happening is at cold start it richens up the fuel mixture and as it warms up the ECM thinks it's still cold and essentially the "choke" is still on. Also check your coolant level. If you don't have enough coolant in you engine/radiator, the ECT doesn't know what to do so it thinks it's cold.

Posted on Jul 13, 2008

Mikey108

Michael Zangari

  • 475 Answers

SOURCE: Cold starting

I had bad oxygen sensors do this.
Check it out with a scanner before replacing it.

Posted on Oct 22, 2008

Anonymous

  • 64 Answers

SOURCE: When car is warm, taking off from a stop the engine bogs, stalls

Check for a restricted exhaust system.Possibly catalytic converter.

Posted on Mar 28, 2009

Anonymous

  • 319 Answers

SOURCE: 2002 Dodge Ram 2500 Diesel won't really accelerate unitl its warm

Man you have a lot of things to check out. You really need to start out by getting a computer scan done on your truck. Diesels are not what they use to be, and there are to many things to look at. My initial thoughts are that you have a bad injector, but if you are not mechanicaly skilled this is not a job for you. Please save your self the head ache and get the scan done by a reputable dealer or mechanic not the cheapo parts store. It could be anything from a dirty filter or line to a injector.

If you get the scan done and then its something you can do your self, go for it. I have told my friends if they want to buy a diesel, which I am not against at all. If they want me to work on them they have to buy the scanning tool for it because finding the problem takes for ever.

Once you get the scan done then let me know and I can help you more.

tepfy

Posted on May 01, 2009

Anonymous

  • 93 Answers

SOURCE: I have a '91 Toyota SR5 4 Cyn. Once engine warms

Sounds like fuel filter.

Posted on Jun 16, 2009

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