engine clater on 2002 Toyota Tundra

i have a 2002 toyota tundra 2wd extended cab 4.7 v8 when the engine is cold i hear ticking sound when i am driving and the trasmission shifts it sounds like a bad spark knock, worse when cold. called toyota mfg. they can't help

by in Concord, NC on October 11, 2010
2 answers
ANSWER by on October 11, 2010
It might just need a simple valve clearance adjustment. Did you ever get it done? How many miles are in the truck? Zee
ANSWER by on January 19, 2011
Other appends for this vehicle indicate that the V8 exhaust manifolds are a common failure, and when they fail they tend to make a ticking sound when the engine is cold.

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