Heater Issue???

[XJ408]

When I put on my heater, the engine bay has a squealing noise.....what could be the problem???? I have a new belt installed too....:confused:

[Mudderoy]

When I put on my heater, the engine bay has a squealing noise.....what could be the problem???? I have a new belt installed too....:confused:

I can't imagine that a belt would squeak unless you were putting it on defrost. It can use the A/C to help dry the air, hmm is it called defrost.

Other squeaks could be the blower motor bearing.

[4.3LXJ]

Check your AC compressor when you turn it on. If it comes on and you get the squeak, then what you need to do is tighten the belt.

[oderdene]

mine was blower motor,

[XJ408]

yea I do use the defrost on my jeep and thats when it squeaks....I believe its the ac compressor but the ac works....could it be the bearings in the ac compressor itself????

[Punisher]

Try tighten up the belt first and try it out.... and Also its the grade of the belt too I bought a cheap belt and no matter how tight I got it, it squeaks, So I went out and bought the best belt made, cost a few dollars more and BAM Problem fixed!!:thumbsup:

[LizardRunner]

That could be the fan bearings instead of the compressor clutch or bearings.