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2003 Jeep Grand Cherokee Question: I have a 2003 gc jeep. It has over 142,000 miles. I only had 4 cylinders that we

 

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nikkiyc, San Pablo, CA, March 09, 2012, 18:50
 Rookie

2003 gc jeep overland park. It has over 142,000 miles. There were only 4 cylinders. I bought a computer box, and the car still runs hard and very rough. What should I do to make al 8 cylinders run?

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  • Answer #1

    Greg's Orange Auto (13030 Answers) , Orange, CA - (714) 361-9386
    globalhelper March 09, 2012, 19:03
     Master

    you need to diag what the issue is 1st. mechanical or electrical

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  • Answer #2

    Hal... (see my shops), March 09, 2012, 19:33
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     Master

    What's a computer box? You're going to have to take it someone and have them look at it. You must have a check engine light on? What are the codes?

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    nikkiyc, March 09, 2012, 19:55
     Rookie

    Well I was told the computer box is the brains for the whole car. It is electrical problem. I dont recall any codes being displayed. I have someone looking at it now. It is at a shop where I have taken a few of my cars before. He reall doesnt know what is wrong with the car. It was his diagnosis that told me to get a computer box, and now I have spent all this money and the car still runs rough and very hard. Do you have any suggestions? I do remember when I bought the car, the engine light was on, and I took it to this shop, where I have it now. He said there wasnt anything wrong, and now years later, he doesnt know what is wrong with the car. He has my car now.

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