approx. how many miles will a timing belt last for 2002 and 2003 QX4s? on 2002 Infiniti QX4

have 2002 and 2003 QX4s. 2002 has 133,000 miles, 2003 has 85,000 miles neither auto has had timing belts replaced. Will a warning light appear on the dashboard to tell me when it needs to be replaced?

by in Willoughby, OH on March 18, 2010
3 answers 1 comment
ANSWER by on March 18, 2010
No there is no light that tells you. Usually you will hear the belt make noise but inspect it for cuts and wear because if a belt breaks it could instantly ruin your engine. I recommend replacing both. It cost around $20 bucks for a new belt.
COMMENT by on March 20, 2010
In my answer i was referring to drive belts
ANSWER by on March 18, 2010
Both of these have timing chains, So no maintenance is needed unless they get noisy or affect the timing
ANSWER by on May 02, 2010
you do not have a belt, you have a chain, does not need to be replaced as normal maintenance

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