Question about 1989 Jeep Wrangler

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89 wrangler get warm won't idle the takes along time to restart

I have an 89 wrangler 2.5 tbi. it starts and runs fine then about 20-30 minutes later it wont idle when you come to a stop. but seems to run ok when driving, if you let it stall out it take 20 minutes or so to restart it after cranking it the whole time like its flooded on no spark. when it decides to start back up it slowly idles up and then clears out only to die out at the next time you stop. sometimes when i go to start it it will start and turn off instantly but start right back up. any help?

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These jeeps are carbeurated, with heavy emissions systems forced down the throats of Jeep. There are insane Vacuum systems that are too complex to deal with. What I did, (I have the 4.2L) was go out and purchase the Weber kit. I am not selling the part for them, I am actually a happy owner. Mine would die every time I came to a stop. I swapped out the junk and popped in the Weber. I have had no carb problems what so ever. I even eliminated the messy vacuum system! I payed about 200 bucks on Ebay, but from Weber direct they cost around 300. Good luck!

Posted on Dec 21, 2008

  • fajr22 Apr 04, 2012

    They are not carburated, you have no idea what your talking about... Love how people like comments with no firsthand knowledge of what they are even talking about... Its a 2.5 TBI, which stands for Throttle Body Injection... Duh... Im haveing the same problem when i figure it out, I will post a real solution...

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I have a 1989 4.0L tbi and was having the same problem. I went on ebay and found Motorcraft carburetor that a guy out of Colorado has come up with to replace that nasty old Carter carburetor that comes with that model Jeep. It gets rid of all those emission system hoses and parts that cause so much problem and narrows it down to just a few hoses. It will still pass emissions tests with no problem. It also increases horsepower and fuel mileage. I'm not real good at auto work, but the guy selling the carburetor has good instructions that he ships with the Motorcraft and will not hesitate to help over the phone. He even offered to help in person if I lived in Colorado.

Posted on Jan 22, 2009

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