2006 Ford S-Max 2.0 Desiel
Running rough.

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Kenneth Munro
Driver
1 points

Problem added: Oct 6, 2020 (2 weeks ago)
The engine runs really rough. If I accelerate normally the engine judders, especially at lower revs If I accelerate hard it runs ok but as soon as I try to drive normally it's back to running badly. It doesn't stall on tick over but it still sounds a little rough.
I've cleaned the MAF sensor but with no change.

Car details
Car: Ford S-Max
Variant: 2.0 Desiel
Model Year: 2006
Category: Running Rough, Starting & Power Loss
Replies and Fixes
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whittingehame
Legend
15,247 points

Oct 6, 2020 (2 weeks ago)
When was fuel filter last changed ?
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bustedknuckles
Legend
1,988 points

Oct 6, 2020 (2 weeks ago)
Could be fuel pressure sensor or wiring issue but filter change a good shout as starting point ,from your description fuel could be getting restricted if it goes well under acceleration,but rough otherwise,
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