Not an exhaust leak but...

[The Diesel]

I thought i had an exhasut leak, so i checked it out and all but i couldnt find anything. So i just took it to a muffler shop and they put it up on the lift and me and two other guyswere looking for leaks with the car running, we couldnt find a damn thing. Im pissed, it doesnt sound real bad but its noticable. And its usually only when the car is low in geas with the pedal floored. And no its not the timing, i know what pinging sounds like. I also have a rattling noise at low RPMs with the pedal floored in almost any gear, sounds like something is loose. Any ideas guys?

 

[stangman]

have you been running it in high rpm's lately and/or somewhat low on oil?



my car was acting the same way recently. i thought it was an exhaust leak for sure, took the exhaust all down only to find nothing. then the wife & i went to get something to eat the other day. she got out of the car for me to pull into the garage. i let out on the clutch & BOOM. i don't know for absolute positive yet, but we think the engine has stacked a rod bearing

 

[spikeGT_99]

what all do you have done to your car? might be something you put on there

 

[sixstang]

Check your spark plugs. I had a plug that started backing out and it sounded like an exhaust leak. Couple hundred miles later the plug blew out, broke the cop and stripped the threads.

 

[The Diesel]

All i have on the car is a K&N FIPK and a MAC o/r h-pipe. Im new to the 4.6 motor, how do i check the plugs? Give me details, im not mechanically challenged or nothin, just not used to so many electronics lol.

 

[blackstalion666]

the coils i believe are retianed by a 7mm bolt once you remove them the plugs are 5/8 . there pretty simple you shouldn't have any troubles

 

[The Diesel]

the coils i believe are retianed by a 7mm bolt once you remove them the plugs are 5/8 . there pretty simple you shouldn't have any troubles

Looks like the coils are under the fuel rails, do i need to remove the fuel rails?

 

[blackstalion666]

Looks like the coils are under the fuel rails, do i need to remove the fuel rails?

nope you will be able to snake the coils around. without having to take them out

 

[Mike97gt]

if you do find a loose plug use a little locktite when you reinstall it... thats what we do on the lightnings now...