chirping upon acceleration

When I accelerate even slightly in my '94 XL I hear a chirping sound. Like a bird. It goes away immediately when I ease off the accelerator pedal. Doesn't affect performance, just annoying and maybe something on it's way out? Any ideas/suggestions appreciated. thanks.

Reply to
Bob
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Reply to
Art McClinton

Yeah, I suspect the tensioner but I replaced it about 30,000 miles ago (when the truck had about 40,000 miles on it). Do these things typically have a short life span?

Reply to
Bob

i had a similar noise i eventually found coming from near the firewall. i ran engine without serpentine belt to eliminate all that stuff. turned out to be camshaft synchronizer.

Reply to
Spud Unger

Thanks. I'll look into that. Is it hard to replace? expensive?

Reply to
Bob

Remove your serpantine belt and see if the noise is still there. If so, it is likely the camshaft synchronizer. I had the issue on my 97 OHV 4.0. Itcan be a pain to replace depending on your engine. I had to remove the upper & lower intake manifold to get to it on mine. Look up the thread titled "Chirping 97 explorer " using google groups.

Reply to
Captain Coleman

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