Toyota 4Runner Problem Report

Toyota 4Runner Crankshaft Pulley Bolt May Come Loose

(1 report)

Some of the 4 and 6 cylinder engines have had the problem of the crankshaft pulley bolt coming loose. This will make a rattling noise as the engine idles. Our technicians tell us that the pulley bolt should have a thread locker applied and then retorqued. 

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