my 1999 2.5 deisel (non turbo) tranny has for the last 12 months been developing a problem when hot, of not accelerating with throttle fully open, no smoke, no misfire,but just picks up ever so slowly then after say 500 metres in 4th it suddenly goes!, change to 5th and wait another 500mters before it suddenly accelerates. Always serviced, always starts first time. It feels like something is sticking then frees itself, have seen some possible links to a Plunger in the deisel pump top, but cannot find any more info, any help would be appreciated.Martin
I had the same experience, It could be the accelerator pedal, mine failed totally after intermitent low engine power then it would not rev up, but the engine would run on idle.
When I replaced the pedal assembly, I dismantled the unit and the acctuator that runs through the pedal movement into the potentiometer was sheard and would not activate any movement between pedal to potentiometer. Cheep plastic that faield cost £107.00 from Ford
ray
October 2012
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