engine shudder

Asked by Oct 22, 2011 at 12:17 PM about the 2005 Ford Expedition XLT

Question type: Maintenance & Repair

It's got 124K on the engine and it just started to have problems.  The engine seems to shudder between 45-65 mph while maintaining speed.  During acceleration this does not happen.  I thought it might be mis-firing at first but then it should do it all the time not just at 45-65 mph.  I heard it could be the Throttle Position Sensor which make sense to me but I have received mixed opinions from my local parts stores.  Can any one help?

1 Answer

X the TPS.I feel the problem is not in the motor,sounds like a bad Ujoint in driveshaft,or a bent or out of ballance tire.also it is possable the tourk converter is going bad.

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