knocking noise

luvmystallion · Nov 12, 2009

I have a 98 cobra with 82k on it.When the engine is running is get a faint to medium noise in the motor.It does it motor after revving the motoe and it's widing down.I have heard that some wrist pins problems with the 4.6 it runs to good for anything be to majorly wrong with it.Anybody have any ideas?please help.

danielson631 · Nov 30, 2009

i have a 96cobra and i have this same problem. im not sure what it could be though so i second your question.

luvmystallion · Nov 30, 2009

I have had a couple people tell me it's the timing chain slapping the cover,or a wrist pin,then one told me it sounded like a spun rod bearing,but the car runs to good for it to be something to bad.It will still get rubber in 3 out of 5 gears on dry road,so I am looking for anybodies suggestions.

luvmystallion · Dec 3, 2009

Hey guys,
Here's some videos of the noise in my motor it's kind of hard to here,and excuse the crudeness of the videos.

TxCobrA98 · Dec 3, 2009

sounds like a rod bearing to me. that is what mine sounded like when i threw a rod bearing.

danielson631 · Dec 3, 2009

oo thats not even close to what mine sounds like. mine is half as noisy. i cant even take a video cause you cant hear it over the engine. guess i DONT have the same proble. goodluck

Monster Mach · Dec 8, 2009

DAMN That is exactly what my mach sounded like with the wrist pin shot... TAKE IT TO THE GARAGE IMMEDIATELY or watch your motor fail like mine did.. thats not rod knock thats worse that could cause your pistons to practically fail and exploded.. NO JOKE... mine only had 70k and started after a burnout..