Outer Limits 4x4 Board

Hey all,

Hoping for some help with a squealing noise when cold.
Since Ive had it once or twice did a small squeal when starting cold. Touch of silcon spray and away it went for a week or so.

Last week, the noise came and stayed. CHanged belt 1st up. Still there once it was cold next day. Had the alternator changed next. Again next morning start the truck. Its back again.

Mechanic said suspect tensioner so replaced that with a o/e tensioner. Again next morning sounds back! I have left the truck with workshop to start it todayin hope the sound will re occur. The squeal does dissaper after its warmed up maybe 5 minutes of driving time.
Any more ideas?

From reading other posts it seams to be a common occurrence with the 2 parts I have already changed. Next bet is aircon or water pump (gut feeling is on aircon). Just dont want mechanic to keep taking me for a ride and keep fixing "BROKEN" parts but the noise is still there.

Sorry for the long winded post.

Here is a recording of it.
http://s235.photobucket.com/albums/ee19 ... V02811.flv

I think its ya air con compressor mine did same thing after weekend end at landcruisere park turns out it was full of mud and needed replacing.
good luck

Our GU does the same thing, replaced tentioner, belt and cleaned up all the pulleys..

It still sequels when cold but once your up the road it stops.

the alternator has a one way clutch on it and it can squeal like that when its about to die,
check the tensioner first as these are replaced all the time, check ya wallet as there about $300.

O/e belt seems to have fixed this sound. Washed down motor, cleaned all pulleys. And a O/e belt. Which in fact has different shaped ribs, and is shorter than what repco sold me. No noise yet!

Have heard the same with oe belts. Others can be a tiny bit wider and rub on pulley. Not just Patrols either but very common for them.

ive got the asact same problem with my fan belt, constant squel, had the water pump and pulley replaced yet still there, fan belt spray keeps it away for about a week with each spray

what do the call it the idler pulley? thats is what went on mine then squeeled ranomly the foirst couplke of trips then never again. Strange