Chirp from engine at high rev shifting

[bullitt 5561]

When I wind it up to almost redline and shift hard and quickly...I hear a squeal from the engine, just like a fanbelt squeal. Not a long squeal, just a short quick slip. Let me know what you guys think this might be. Thanks:SNSign:

 

[Mustang5L5]

It's the belt slipping

 

[Kilgore Trout]

Get a Goodyear Gator Belt and it will go away

 

[bullitt 5561]

can I adjust the one I have?

 

[Mustang5L5]

Nope, the tensioner is self-adjusting.

try a new belt

 

[fastangboi]

Under drive pulleys. FTW

 

[the98stang]

It's the belt slipping

^^^

spray some belt conditioner on them....could help the issue

or replace them if they're cracked/old

 

[SeXcStAng]

Get the goodyear gatorback belt and enjoy the simulated blower sound

 

[bullitt 5561]

what retailers sell them or where do you recommend I get one?

 

[Kilgore Trout]

Belt dressing is only for v-belts. It is absolutely NOT for the serpentine type belt on Mustangs. It says this right on the can...

When the belt starts slipping it is time to get a new Gator belt, that is the bottom line.

Goodyear's website has a dealer locater feature. The belts are available at most auto parts stores.

 

[DTMach1]

Is the squeel before you push the clutch in? Just a high RPM squeel? I only ask because you mention shifting.

I'd do the belt if it is just a high RPM squeel, but I'd look at your TOB if its only when you push the clutch in at high RPM

 

[40th GT]

How do you know it's the belt and not the tires that are chirping?

 

[steveb24]

How do you know it's the belt and not the tires that are chirping?

i was just getting ready to say that! .. seriously.. u never know w/ some ppl.

 

[fastangboi]

Police Crown Vics do it. As its shifting it will give off a high pitch screetch from under the hood. CV's do it because their pulley system is overdriven.
It has to do with accesory speed and crank shaft speed. When the rpm's go down during a WOT shift the accesories still have all that momentum and the belt slips a little.

 

[scupking]

Same thing was happening to me so I bought a Gatorback belt yesterday. I havn't installed it yet.

 

[RedHorse04]

My car started doing that after I installed the cams and never really thought to change the belt. I am glad to see I am not the only one with this problem.

 

[Kilgore Trout]

Oh yeah, its very common. Even a Gator belt will start doing it after a while... It sux...

 

[Dan_Soprano]

Belt dressing is only for v-belts. It is absolutely NOT for the serpentine type belt on Mustangs. It says this right on the can...

When the belt starts slipping it is time to get a new Gator belt, that is the bottom line.

Goodyear's website has a dealer locater feature. The belts are available at most auto parts stores.

hey, just so you know bro, Gatorbacks SUCK for the cobras....too much damn belt dust.....you better off with a regular old Gates belt.

 

[bullitt 5561]

I think it is either the belt or the throw out bearing. It happens right when I engage the next gear. It sounds just like a fan belt slipping and that is where the sound is coming from

 

[fastangboi]

It did it when i was stock. After UDP's i never heard it again.