Ford Focus 2001 Ghia 1.6 - Juddering on the motorway

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Sat 12 Apr 2014 17:23
Ford Focus 2001 Ghia 1.6 - Juddering on the motorway - Markbrid1980

Hi,

Just been up to York and back at a total of about 290 miles. The journey up was fine but on the way back the car juddered a few times. No loss of power or any other symptoms. Coolant temp was fine. I had my odb adaptor running at the same time.Once I slowed down a bit to about 55-60 it was fine.

I think I know what the issue is but want some more opinions.

I think its the coil pack as this may explain the rough idle. I am planning on buying one this week with some new HT leads and plugs.

Any other opinions?

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Sun 13 Apr 2014 12:46
Ford Focus 2001 Ghia 1.6 - Juddering on the motorway - Markbrid1980

It was my first 300 mile trip yesterday in it since I bought it. I was thinking the coil was starting to break down but not fully gone so it missed a few sparks?

I did a few tests with the fuel trim Bank 1 and 2 long term.

At idle it came in at +14. Then at 1500rpm it was 9.4 on both and 2500rpm it was -0.8. OBD is reporting nothing is stored in regards to ECU codes.

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