[SilverSvt03]

Ok it started a couple months ago. It comes and goes and it also does it during idle and when i do hear it rattle i can rev it alittle and it changes with the reving of the engine. But like i said it comes and goes. Just lastnight i was able to get under the car while it was rattling and i found that its coming from around the oil pan. do i need to worrie?

 

[Peregrine]

I'm having the same issue that appears around 3000-3100 revs. I've tried to hold the throttle body open from underneath the hood to find the problem but it only happens when the car is moving. I hope it isn't my clutch starting to chatter...[]

 

[SpeedOften]

clutch chatter only happens when not in gear with the clutch peddle out... do you still have the stock cat? what kind of rattle is it? fast paced, slower? Can you make a recording of it?

 

[Peregrine]

Well that eliminates my worries then.

 

[02SilverSVT]

it's probably the cat bracket or a heat shield......."If it doesn't rattle it's not an SVT" lol

My car is named Rattles

 

[Peregrine]

^ I always get my old siggy thrown at me every now and then. What's up with that? lol

 

[SilverSvt03]

well i do know its not the clutch bc i had that replaced last year and if u are stand above the engine the sound is coming from the left handside "passenger side' if i had a heat sheild rattle wouldnt it rattle all the time?

 

[Weldman0730]

well i do know its not the clutch bc i had that replaced last year and if u are stand above the engine the sound is coming from the left handside "passenger side' if i had a heat sheild rattle wouldnt it rattle all the time?

no not nessisarily, since certain frequencies cancel each other out, meaning at one rpm the engine will rattle like crazy and at another all vibrations will cancel each other out.

 

[Peregrine]

It would rattle all the time but it would be more pronounced at higher revs.

 

[SilverSvt03]

ok would if i told u guys that i sounds like metal slaping against eachother

 

[focusracer1]

Well, after 2 months of trying to figure out WTF!!!! was rattling under my hood, it turned out to be the Idler Pulley and Tensioner. The bearing was gone. I had no loss of power, the noise would come and go. It sounded it was on the top left, then top right, then from down below etc. I was F'N baffled by it. It took 3 mechanics plus myself to figure it out after 20 minutes of tinkering and listening. We initially thought it was the timing belt tensioner and when they started tearing it down they discovered it to be the Idler.

Check that out before you go diggin too far.

 

[SilverSvt03]

how would i know if it is the idler pulley?

 

[SilverSvt03]

anyone?

 

[Peregrine]

There should be some shaft play or something to that affect, that is, if the bearing is toast.

 

[MisterJohnson]

There's a stethoscope you can get specifically for cars, it has a rod on the end instead of a round thingy. You touch the rod to different parts of the car while it's running and if there's a vibration it will be louder as you get closer to the source. I'll try and post a pic tomorrow

 

[SilverSvt03]

where is the idler pully?

 

[SilverSvt03]

Ok i took it to ford and they found out it was the A/C clutch.