Roush UDP problem

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11-24-2007, 04:42 PM

gunnerdog

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Roush UDP problem

After installing my Roush underdrive pulleys I have belt noise and have been getting misfires trouble codes. Is the torque off? Or is the pulley bad? Please help.

11-24-2007, 04:45 PM

DeStonn

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RE: Roush UDP problem

Might be the belt...

but this is purely a guess

11-24-2007, 04:51 PM

gunnerdog

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RE: Roush UDP problem

Its an 2007 with 23,000 miles on it. No problems with the belt before the install. Can a bad harmonic balancer cause misfires?

11-25-2007, 04:24 PM

gunnerdog

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RE: Roush UDP problem

Any last bit of advice before I pull these off and my wife ends mustang mods?

11-25-2007, 05:13 PM

white531

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RE: Roush UDP problem

There could be a bolt hitting the upper pulley.It may need to be cut off because the pulley is bigger.Look at about 1 oclock. You mayalso see a shiney mark around the back of the pulley.