2002 Toyota Tundra Q&A

2002 Toyota Tundra Question: engine clater

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 -
Answer 1
It might just need a simple valve clearance adjustment. Did you ever get it done? How many miles are in the truck? Zee -
Answer 2
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. -