Anyone ever come across an intermittent grinding noise in the front passenger area? It started doing it upon braking (but the brakes are fairly new), but has since started doing it even when driving and accelerating. My gut is telling me it's a wheel bearing, which I'm being quoted about $1000 to replace both bearings and hubs. The dealer isn't quite sure as they can't get it to duplicate the noise (shocker there huh?). Can anyone think of something else it could be? It has about 87,000 miles on it. Thanks.
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Last edited by nesport; 10-03-2009 at 06:59 PM.
Reason: spelling
i have done several of these. 1 a few weeks ago. customer complained of bad grinding noise at times when comming to a stop at high speeds or at very low speeds. 1st one was a b*#!@ to diagnose but it was it was the solenoid pack that controls 4wd engagement. loses vacume when comming to a stop and the 4wd slightly engages and thus the grind you hear. that solenoid pack is located on the passengers side wheel well area in the engine compartment. not very expensive. around 50 bucks. not hard to change either. just watch your vacume lines and dont mix them up. good luck!!
How do you test to see if that's what it is? Is there any chance that it could be the wheel beerings/hubs? The mechanic says he visited some sites and found a tech tip that said that the hubs have a defect in them and to replace if this occurs. He's always been good with me over the years with multiple cars, so I don't think he's trying to screw me, but at the same time he doesn't do a lot of work around Montero's so he may just not know. If there's a test like running it in 4wd and it not doing it, I'm in for that test. Thanks.
It could also be the free wheel switch, located on the front differential. That is even cheaper than the solenoid pack, but a bit of a pain to replace.
03 Montero Ltd Front intermittant grinding noise
