I just picked up a 2007 4Runner SR5 with the 4.0 with 77k miles on it and it runs like a champ. My first V6 woohoo! Previously I had a 22RE in a 94 P/U and currently am working on a 3RZ-FE for my 99 4Runner.

I'm a little nervous though, because when i lift the hood, i can hear a faint ticking sound coming from the engine.

What could be making this sound? Please tell me everything is going to be ok.

Thanks, dudes.

 

Maybe a manifold leak. I have one too. At first you could only hear it when cold as it would self seal when the engine warmed up. But now, I can hear it all the time.

 

x2 on the manifold leak, does it do it cold or hot? if ho it may be big enough to not be able to seal

 

it seams to quiet down after she's been running, yes. what steps can be taken to prevent more leakage? Should I take it back to the dealership? The kooky salesman was trying to tell me it was just lifters so he could get me off the lot I think. I have 5 days to back out of the deal. I'm really digging the ride though. I have Friday off, I can take it my mechanic then, but I just wanted to see what you guys thought.

 

Sorry, I can't help you there. I just bought my 2006 about a month ago. It wasn't leaking when I bought it, but started just afterwards. What luck! I am waiting to see what headers are available for mine, so that if I have to change the manifold, I'll put on headers instead. But I have the V8 and haven't found headers yet.

 

Gotcha. Thanks for the replies.

 

That's a normal sound for the V6 (valve tick). Manifold issues are usually a v-8 thing. Have you been over to Toyota-4runner.org? Lots more info on the 4th gens over there.

 

You should have some sort of warrenty with it unless it was "as-is'. if you bought it from a dealership, take it back and have them look at it.