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08 Fusion Trans prob ? Low speed hard clunk upshift into 2nd


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I have a 2008 Ford Fusion SE 4 cyl. Upon acceleration from approx 5 to 20 mph driving in traffic my car will make a loud jerk or slam sounds like the car doesn't know which gear to go in :banghead: . It accelerates fine it slows down fine, But when it shifts it shifts hard like a clunk type. Car has 70k on it and has been doing it since about 20k. Ive taken back to the dealer 4 or 5 times with the usual answer. CDS---- Cant do Sh--t. So any help ? Trans doesn't slip, doesn't lunge, it just shifts VERY hard or feels like a hard very hard jerk when shifting up to 2nd gear from a speed under approx 20 mph.

Services done:

Fuel injection service done twice.

Transmission serviced.

Transmission flushed.

Hasn't EVER showed any codes, the service light has never come on.

 

Thanks for ANY help..

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  • 4 months later...
  • 9 months later...

My 2008 Fusion I4 is also doing this. Just started last week, 60,000 miles. Fluid is dirty and problem starts as the car gets hotter (driven longer, warmer weather). I think it is related to TSB 08-24-1. Google it and see what your dealer will do. My car is going in next week. Good luck.

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