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Discussing Belt chirp on shifting in the 94-95 Forum. Ok, when I go WOT or near WOT, then let off the gas a little ...

       

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Old January 19th, 2008, 08:59 PM   #1
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Belt chirp on shifting


Ok, when I go WOT or near WOT, then let off the gas a little before shifting, it sounds like I have some sort of belt chirp. When I go WOT and shift still in WOT, no chip. Never any other squealing or squeeking. Why is it doing this? I'm thinking belt actually runs over a pulley because it can't slow down as fast as the engine did? Does that make sense? Any ideas and how to fix? Brand new belt btw.

Just curious, I tell people it's my turbo blow off right now.....
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Old January 19th, 2008, 09:03 PM   #2
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hows the tensioner pulley look?
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Old January 19th, 2008, 09:09 PM   #3
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Looks good to me, looks and feels very tight.....but I'm no mechanic. (actually, a mechanic told me it looked great 1k miles ago.
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Old January 20th, 2008, 11:26 PM   #4
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Originally Posted by militant54 View Post
Ok, when I go WOT or near WOT, then let off the gas a little before shifting, it sounds like I have some sort of belt chirp. When I go WOT and shift still in WOT, no chip. Never any other squealing or squeeking. Why is it doing this? I'm thinking belt actually runs over a pulley because it can't slow down as fast as the engine did? Does that make sense? Any ideas and how to fix? Brand new belt btw.

Just curious, I tell people it's my turbo blow off right now.....
id unno
 
Old January 24th, 2008, 10:12 PM   #5
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Any ideas?
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Old February 6th, 2008, 12:29 AM   #6
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my car with an sct tuner does the same thing on the 1-2 shift at WOT. i wouldn't worry about unless it happens when at partial throttle.
 
Old April 4th, 2008, 10:46 AM   #7
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Any other ideas? It's driving me nuts and I can't trace it....

It doesn't do it AT constant WOT, only when I hit it hard in WOT and release from the gas, then when if shifts, it chirps....well, almost screams.
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Old April 7th, 2008, 12:20 PM   #8
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both my 2002 and 2004 gt have done this the ford dealership said that is something thay do with the mod motor to keep the belt from braking. i dont know if that is true or not. also my f150 did the same thing.
 
Old April 7th, 2008, 12:28 PM   #9
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sounds like the belt is slipping mine does that,no biggie
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Old April 7th, 2008, 12:45 PM   #10
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Think my belt might be a little too big? It really seems like when I let off, the engine drops rpms so fast that the belt keeps going and slips a bit. It's loud enough sometimes that people duck like they're being shot at.
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