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-   -   Metal on metal sound (http://mustangforums.com/forum/2005-2014-mustangs/694494-metal-on-metal-sound.html)

Rshustler1 05-01-2013 11:18 PM

Metal on metal sound
 
So lat week I changed my spark ifs without breaking 7/8 and the last one (driver side closest to fan) broke, $100 later and 20 minutes with the lisle tool and I got it out and replaced, while doing maintenance I changed the fuel filter, I also added a set of under drive pulleys... (I know too much at once) and since all that I feel like I lost some power and the engine sounds like its knocking a bit with a screeching sound loudest at the front of the drivers side, also the ad ratio seems a lot more active on hard revs,

Could it be pb blaster burning off still? Only drove for 10 or so miles)

All plugs and coils are secured tightly and sufficiently.


http://youtu.be/EFSjQe2lHPA

Rshustler1 05-01-2013 11:39 PM

Just to note its am 05 gt with c&l Cai, Mac mufflers, bama tune, stack pulleys, 3.73s

BrazenStang 05-02-2013 07:06 AM

What plugs did you use? anything but copper plugs will cause issues. did you use dielectric grease on the cop's? and for future changes I hope you used anti-seize!

why would there be pb blaster in the cylinder? please provide more info


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VistaBlueFrank68 05-02-2013 07:06 AM

Try some spray Belt Dressing for a slipping pulley.

edwin108 05-02-2013 09:05 AM

Do your under drive pulleys look like they are wobbling while the engine is running? Is your belt tracking straight?

Rshustler1 05-02-2013 09:11 AM

The belt appears to be tracking straight and no wobble in the pulleys I torqued them down like I was supposed to.
I used ht1 plugs and anti sieze and boot grease the pb blaster is from when I changed the plugs I used it to loosen some of the carbon

edwin108 05-02-2013 10:14 AM

Try running the engine briefly with the belt off to see if the sound is being caused by the belt/pulley system. Also, how much PB blaster did you use?

Rshustler1 05-02-2013 11:51 AM

I'm not sure on the pb blaster I know less than half the can but no exact measurement, ill try the belt off tonight and update as such

Rshustler1 05-02-2013 10:21 PM

When I got home I checked for the sound and it was gone the vehicle is still running odd just no screeching sound

edwin108 05-03-2013 09:24 AM

Quote:

Originally Posted by Rshustler1 (Post 8206316)
When I got home I checked for the sound and it was gone the vehicle is still running odd just no screeching sound

Is the engine misfiring?


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