Question about 2001 Ford Mustang V6

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What causes the shaking engine and bucking in gear (manual) on semi-cold start?

It is 45 degrees here today. Warm, for us for December in Indiana. My car has been fine in cold weather so far. But today, I started it and the engine ran rough at first, with gear shift handle shaking. When I shifted into first or second it would shake and I thought I heard a clunk in the back. I drove it back home. Then drove around the block and it shifted and ran fine. I just let it sit a few minutes. It has not started rough like that yet this winter and we have had temps in the teens. Mileage is 146,000. Car has new IAC few weeks ago, has had head gasket and air intake replaced, if that makes a difference. I am not a backyard mechanic but will have my mechanic check trans fluid Monday.

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Check for a possible cold start injector problem or a possible motor or transmission mount that is loose or broken.

Posted on Dec 13, 2014

Testimonial: "Will advise my mechanic, thanks!"

  • C.M. Carteaux Dec 14, 2014

    Mechanic thought it would act fine today. 45 and dry. Still have a bump now and then in only third gear (for now). I took it back home until he can look at it. Have to limp to work and back tho. :(

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SOURCE: 1998 Ford Taurus Station Wagon SE

CODE P500 VSS NO SIGNAL.PROBLEM COULD BE CONNECTOR TO VSS IS SHORTED OR THE MAGNET GEAR ON TRANSMISSION DRIVE SHAFT COULD BE BROKEN OR MISSING TEETH.

Posted on Aug 04, 2009

SOURCE: 2000 Focus has engine "shake" and won't idle

Always start with check engine issues first and repair them,then move on to no code symptoms. Go to shop with a good scan tool ,not a $200.00 auto part store frebee and no code book

Posted on Sep 28, 2009

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