Ford Focus (1998 - 2004) - 1999 1.8 TDi Over revving problem

Honest John Back Room » Technical matters
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Sun 15 Feb 2009 20:18
1999 1.8 TDi Over revving problem - Eve09
Hi

I've had my car for 18 months and no problems until before Christmas. I started to notice that when I changed up a gear (for example 3rd to 4th in particular) the engine was over revving but not fully engaging. I've had a new clutch and the problem is still there. This problem is intermittent.

Any suggestions greatly appreciated.

Eve

Edited by Dynamic Dave on 15/02/2009 at 21:04

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Sun 15 Feb 2009 22:21
1999 1.8 TDi Over revving problem - clewsy01
could possibly be the speed sensor or a ecu fault. it could be worth having the ECU re-programmed as it is a common thing with focus. I have a 1.8 petrol and had simular problems and mine was a speed sensor. Has all the cam belt etc been done as well? also was it a full clutch system?. If it wasnt and they put a 2 peice set the revving may be there as maybe the bearing and slave needs replacing. also as a bit of a long shot make sure they have put the right one on as 1.8tdi and 2.0tdi focus have a different gearbox to the others. they have an MTX gearbox which is different from the standard IB5.
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Tue 17 Feb 2009 16:05
1999 1.8 TDi Over revving problem - Eve09
Thanks Clewsy - this is really helpful. I've booked the car into my local ford dealership so that they can run diagnostics... They too think that it is the sensor. If it is the ECU, is it an expensive job to get it reprogrammed?

Many thanks again
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