Heater squeals when hot
12-04-2013, 06:18 PM
#1
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Year: 1999
Engine: 4.0L l6
Heater squeals when hot
So I've noticed lately that when my engine is hot and I turn my heater on, it'll start with a high pitches squeal/whistle. It mostly happens when I'm coasting. Any ideas? Anyone run into this before? It's an '88.
12-05-2013, 05:57 AM
#3
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Deceleration? Could be a vacuum leak under the dash.
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