Ticking/knocking noise

centuryt · Jul 20, 2009

04 Mach I, 4.6 DOHC, 36k miles, stock. After the engine is warmed-up for a few minutes, it develops a ticking/knocking type noise that sounds like it's coming from the driver side chain cover. I replaced the guides & tensioners but no change in the noise. Went back in and inspected/cleaned the oil passages in the head, the feed tube & passages to the tensioner but it all looks OK. I even ran the motor with the left valve cover removed & listened with a stethescoop by all the lifters & springs. The the noise still seems to be coming from the frt of the engine. The oil pressure is good. No broken valve springs, loose lifters or rocker arms.
What an I missing here?? Any help is greatly appreciated!

Boostang · Jul 20, 2009

oil pump going out im guessing?
but thats not likely with that kinda miles..

2002 BLK GT · Jul 22, 2009

Any mods? when it started to do this?...... by the way
Welcome to Modded Mustangs.....

93hatch · Jul 22, 2009

you sure its not the famous tick? go ask your question on 2003-2004 Ford Mustang Mach 1 Owner's Club & Registry Website

BLK01SS · Jul 22, 2009

It prolly your timing chains. I had the same noise comin from my car and what happened was the tentioner locked up so the chain would "slap"(hence the knock or tick). Take off your valve cover and if you can pick the chain up off of the cam gear you know what it is. Don't it soon before it eats through your oil pump. When the chain gets loose it eat through the front of the pump.

superbeef1000 · Jul 23, 2009

sounds like header/manifold gasket is leaking a bit also inspect the ac compressors clutch

rodeheavers · Jul 23, 2009

valve guides...

centuryt · Jul 25, 2009

Looks like the head is coming off! Thanks for all of the input!

BLK01SS · Jul 25, 2009

Well what was it?

Ticking/knocking noise

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