2001 SC 4.6 Engine 45000 Miles - Recently I have been hearing a click noise from front engine area (drivers side) when motor is running. The Pre-Cat - After the engine warms up 30 - 45 minutes go away until cool down again.

The noise almost sounds like a relay clicking, or the exhaust making a cracking sound. It can be heard when first started up and sitting, as well as driving. At first I thought it was from the suspension but began hearing it at a stop. Anyone have ideas regarding this problem I would appreicate the help. Thanks - Vern

 

MINE TRUCK MAKES THAT SIMILIAR SOUND, BUT WHEN YOU GIVE MINE THROTTLE IT QUITS TICKING AT CERTAIN RPMS WHAT IN THESE MOTORS CAN MAKE THIS NOISE?

 

mine did some too i went and got some prestone belt lube..it seemed to stop the noise

 

have the exhaust manifold studs checked. They are well known for breaking on the 4.6 & 5.4 engines. This is most likely your ticking noise

 

sorry wrong post

 

well i think it might be just a noisy lifter

 

I have a 2000 150/7700 5.4L and have the same noise. Give is gas at idle and it stops.

 

You might check your PVC valve; there's 1 in each valve cover. Aftermarket PVCs sometimes do that. If that's not it, you might move this post over to the Engines forum; I'm sure someone over there will help you.

Curt