Why does a 2002 Jeep Liberty have heating problems?

You should not be getting any corrosion or any particles in the cooling system. Casting particles usually are too heavy, easily flushed out, and not likely to block anything.

Almost always when there is a problem of clogging up, someone has put in radiator leak stop.

But that should have been flushed by now I would think.

If it looks like a thick liquid, it is possible it is oil foam.

Is there foam on the dipstip as well?

Have you done a cooling system pressure test, to determine if there is a head gasket problem from that overheating incident?

To do a cooling system check you just replace the reservoir cap with pump and gauge.

If it hold overpressure for 5 minutes, then good on first part. Then start and rev engine to ensure no oscillations, for 2nd part.

Last desperate thought is aluminum radiator and heater can corrode to a white gel. Water may be too acid in your area. Radiator shops can get brass replacements.

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RE:

Why does a 2002 Jeep Liberty have heating problems?

My daughter has a 2002 Jeep Liberty, about 5 years ago the vehicle ran hot a long way from home and they replaced the radiator. They told her it was too clogged to flush out. Ever winter since then I have had to flush out the heater core in order to get the heater to work. Last year I flushed...

I think the last guy was just giving you a stupid answer about fuel, it has nothing to do with it. I have not had any reocuring problems from liberty's. I have seen the manufacture accidently leave flashing from when they cast the block inside the block and it not cause a problem until it moved around and clogged the radiator, heater core, etc... and that was at 50,000 miles what does it look like when you flush it out?

Dodge Chrysler Jeep Tech

You are using the wrong fuel.