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check the ps adjuster pulley. bearing can go out and make noise like you describe.


I concur.

Same issue happened to me several years ago... Never pinpointed the cause. Rebuilt the engine, same thing.

Finally replaced the PS idler bearing when I had a spare from a parts truck (seemed to be in better shape), and the sound disappeared!

"A young man who does not have what it takes to perform military service is not likely to have what it takes to make a living." - John F. Kennedy

Proud owner of an 88 Montero (with a blown engine).