scrim67

For the past few weeks I hear a fairly loud rumbling when I hit the AC ON Button which disappears when I turn off the AC with the fan still running

Ideas?

2007 RL With 140k miles

Thanks in advance

Scrim

sOLLEx

Leave the a/c running and check the drive belt area and try to narrow down the noise . The extra load caused by the compressor engagement will usually affect the noisy component. I would suspect the drive belt tensioner....should sound like a rattle or buzzing type noise.

TonyCD

BTW, Scrim, really like those wheels in your avatar shot. Got a bigger photo?

swankrl

I just had a similar problem. Check the passenger side fan. It should not have any play in it. If it has play, it's the fan motor.

oo7spy

.