Question about 2003 Jeep Liberty

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Burning smell from heater when on high & fan on low

Smells like burning rubber or plastic.If I lower the temp it goes away.

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  • Jeep Master
  • 20,706 Answers

Burning antifeeze, do you do 2 years AF service, or wait for the core
to rot thru.???
when the AF, gets old it goes Acidic. this eats the core,(heater) and
then it drips, and stinks.
or something died in there, (mouse)
or is the fungus growing.... sucked in from A/C evap. side? >???
or some chuck of sealant in the heater box hit the core and stinks
at 180F temp.
for sure it real,, you nose , KNOWS.

Posted on Feb 10, 2014

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Posted on Jan 02, 2017

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SOURCE: Engine smells like rubber burning

Generally that smell is caused by an oil leak that is getting on either the exhaust pipe or manifold (doesn't take much to smell). As far as bottle getting low, I've got a 93 that never stays full but only needs coolant in the radiator about once every two months. Been like that for two or three years and has never overheated. I'm sure there is a small leak somewhere, but I'm not driving myself crazy looking for it. Check all hose connections, and look on the ground after being parked overnight...If it's leaking, something will show up. But if the radiator is staying full, just check it when checking oil level.

Posted on Jul 13, 2009

  • 6982 Answers

SOURCE: acceleration trouble, engine heat, rubber burning smell

Sounds a lot like a blocked catalytic converter...have it checked.

Posted on Jul 20, 2009

  • 520 Answers

SOURCE: I smell antifreeze through the

you could also be developing a heater core leak. if you start seeing fluid on the carpet or windows fog on the inside when defrosters are on, you got trouble. better to fix the problem now then in the middle of winter.

Posted on Oct 22, 2010

  • 1 Answer

SOURCE: My wife has a 2003 Jeep Liberty Sport with 162,000

I have a 2003 with 140,000 with the same problem and cannot find a solution. I have to idle the engine high to get the heat to blow hot air as well.

Posted on Jan 26, 2011

  • 207 Answers

SOURCE: burning smell coming from my 2003 jeep liberty

I would take it to a shop right away. Do you see any fluids on the ground after you park or are you low on coolant or oil? This could be a electrical problem on its own. If you don't know what your doing don't go messing around with it.

Posted on Mar 29, 2011

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