Drove it with air-conditioner on, noticed the jeep starting to loose power. I turned off the air, some power returned. when i got to my destination, the engine was making what sounded like metal rubbing. definaltely coming from the front where the belts are.
Your ac condenser may be locked up,pull and have checked
SOURCE: 2002 jeep liberty siren whining noise on start up
I had the same problem at about the same mileage. Replaced the power steering pump and the start up screaming went away! ( The Jeep's and mine!)
SOURCE: 2002 Jeep Liberty 3.7L air conditioner bearing replacement
did you check the recall items for this?
SOURCE: 1999 jeep grand cherokee / 4.0 L.
I had a skim module go out in mine in the ignition, and I have a 2001. It's a 100 part, and now it starts fine.
SOURCE: 2002 jeep liberty Turn key switch makes loud
See that? Every once in a while I'm right!!! Reason is that the starter draws far more than anything else in the car. Lights and radio can easily be run by an otherwise ineffective battery, but when loaded (starter draws a bit less than 200amps), the battery will fall flat on its' face! When you jump it, the car is running off the alternator and seems to be OK, till you turn it off again.
Testimonial: "AWESOME, RIGHT IN THE MONE. SAVE ME $260.00 and a lot of headaches."
SOURCE: I started my 2000 Jeep Grand Cherokee Laredo this
No Not Blown SOUNDS as if it JUMPED TIMING and is need of Timing Chain & Gears.90% SURE of this
It sounds like your on the right track, the next step is to do a compression test to verify good rings in that particular cylinder.
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