Ford Mondeo - Car Losing Revs (Power)

Clarkey · 19 Oct 2019 at 19:35

Never seen a clutch slip erratically like that, never mind while at a steady cruising speed. I've never seen or heard of anything other than the revs flaring up under heavy load.

BuToNz · 19 Oct 2019 at 20:09

Had this exact same issue with my mother-in-laws Mondeo. Turned out it only needed the fuel filter changing!

Scania · 19 Oct 2019 at 20:26

Clarkey said:
Never seen a clutch slip erratically like that, never mind while at a steady cruising speed. I've never seen or heard of anything other than the revs flaring up under heavy load.

You have a valid point.

decmatt · 25 Oct 2019 at 15:03

Thanks all for help, I have it booked in on Wednesday but it has pretty much been unusable to drive, won't even get to 70 now!

Dogbreath · 25 Oct 2019 at 16:07

BuToNz said:
Had this exact same issue with my mother-in-laws Mondeo. Turned out it only needed the fuel filter changing!

A blocked fuel filter cannot possibly cause engine RPM to change without an impact on road speed on a car with manual transmission. Engine RPM and wheel speed are mechanically linked unless the clutch is slipping.

acharris · 28 Oct 2019 at 18:15

If you are saying that the the RPM drop is causing the cruise control to kick out, then this could be caused by the brake pedal switch or switch behind the clutch, as both cause the cruise control to disable. Or are you accidentally touching the brake pedal if shoes are wide or something? Or as others said it could be the clutch slipping, but that is extreme if so and being DMf you would heard noises probably.

decmatt · 30 Oct 2019 at 23:13

Thanks for help everyone, it was a 'barely making it' clutch and fly wheel, the garage showed me it and WOW! I am surprised I managed to drive on it.

Had it replaced and the car feels like new!