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
Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
2 answers
ANSWER by , 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 , 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.