Just came over from the ghost town as per a PM, too funny. I have an 04' TB with a noise I'm having trouble pinning down. It's sort of a ticking noise that starts at 2,000 RPM until the thing shifts out of the RPM range. It almost sounds like a plastic noise, like a poker card in the spokes of a bicycle, but hard to tell if it's a plastic noise or what. I have to be bringing the engine speed up somewhat rapidly to produce the sound, and if I really punch it the sound is accompanied by a slight vibration. The sound can be heard in park or neutral, but you have to be inside with doors and windows shut, can't hear it outside of vehicle (hence my trouble). I really doubt it's a valvetrain issue, and I have looked up and down and all around the thing a million times over for loose parts that may be flapping around to no avail.
My wife overheated it when the water pump when out a year and a half ago and I replaced the pump with a cheap autozone unit. I use AC Delco parts exclusively, but there were none in town at the time. I had meant to replace it as soon as possible, just haven't done it yet.
Anyways, I'm inclined to think that the problem is the water pump, clutch fan, and/or fan assembly since that is all that changed when the noise started. My plan is to change the water pump to an AC Delco and replace the fan clutch to see if that fixes it. I'm posting in hopes someone has had a similar issue and that my approach is incorrect since I don't want to spend big money on a pump and fan clutch and have it not be the problem. Also, I couldn't get rid of this POS soon enough and I don't want to put anything more into it than is needed, any help would be greatly appreciated!
Side Note: The clutch fan is not binding and despite some slippage with age, is otherwise functioning properly as near as I can tell.
Thanks
My wife overheated it when the water pump when out a year and a half ago and I replaced the pump with a cheap autozone unit. I use AC Delco parts exclusively, but there were none in town at the time. I had meant to replace it as soon as possible, just haven't done it yet.
Anyways, I'm inclined to think that the problem is the water pump, clutch fan, and/or fan assembly since that is all that changed when the noise started. My plan is to change the water pump to an AC Delco and replace the fan clutch to see if that fixes it. I'm posting in hopes someone has had a similar issue and that my approach is incorrect since I don't want to spend big money on a pump and fan clutch and have it not be the problem. Also, I couldn't get rid of this POS soon enough and I don't want to put anything more into it than is needed, any help would be greatly appreciated!
Side Note: The clutch fan is not binding and despite some slippage with age, is otherwise functioning properly as near as I can tell.
Thanks