Question about 2002 Jeep Liberty

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Why does my 2002 jeep liberty die when i rev the engine?

The engine will start up fine but once you rev it up or start going it dies?

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  • Anonymous Feb 18, 2009

    i have the same problem

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Its time to replace the idle control valve.

Posted on Feb 16, 2009

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2002 Jeep Liberty engine swapped with a 2003 Liberty both are 3.7 liter. Engine swap was fine, engine ran, fluids were good but when I took for a test ride it died. No lights, no power, nothing. Does the...


It could be a change in software from 2002 to 2003. You might try to get. Hold of a 2003 black box as the code will most likely be different.

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I would start with cleaning the throttle bore and plate. Then clean the Idle Air Control valve, IAC, as this is the device that controls idle speed. Use a can of spray carb cleaner and an old toothbrush. Trouble with the IAC would make sense if you can keep the engine going by holding down the gas pedal a bit.
Use the carb cleaner to check for vacuum leaks at hose connections and elbows. run engine and spray short bursts at hoses and listen for idle speed changes.
And lastly if problem is still there check MAP sensor.

Jan 27, 2011 | 2002 Jeep Liberty

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My 1989 jeep wrangler will run fine till it warms up then it dies and want start back up


After it dies see if you have spark or fuel injector spary. It could be your coil or pickup module inth dist. Check for fuel at the fuel rail. I have seen fuel pumps stop working once they got hot.

Feb 07, 2010 | 2002 Jeep Liberty

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Oil pressure light on and wont start


Well I had the same problem and wow was I surprised man. I have a code machine that plugs into my car and tells me what wrong with it then I fix it. It read that I had a misfire #1 so that means my spark plug is dirty or something like that. When I took off the spark plug it was smashed in that was a good sign.. I called a mechanic friend of mine and he said that my head and piston were damaged but would not really know unless he took it apart. What he said was true and cost me a great deal of money..!!!! Now searching the web I have found that there many jeep liberty with the same problem just different spark plug locations so I wonder if Jeep knows of this issue but will not acknowledge it.. If you need more information please email me at fgarcia760@verizon.net

Check out this link regarding your issue..!!

Sep 25, 2008 | 2002 Jeep Liberty

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