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Ron
Ron, ASE Certified Technician
Category: Ford
Satisfied Customers: 23001
Experience:  23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
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I purchased a 1996 Mustang Cobra with the 4.6L Cobra engine

Customer Question

I purchased a 1996 Mustang Cobra with the 4.6L Cobra engine and 5 sp tranny. At about 4K rpm and up it has a violent engine vibration. I wonder if the previous owner could have put a wrong flywheel in it? Is the 4.6 internally or externally balanced?
Submitted: 1 year ago.
Category: Ford
Expert:  Joe Barfield replied 1 year ago.

Ok , not moving just rev it up & it vibrates correct ?

Expert:  Joe Barfield replied 1 year ago.

I can call you if you accept or stay online....I build racing engines as well as transmissions