Ford Mondeo when lights switched on engine mis-fires runs rough

Car: Ford Mondeo
Variant: 1.8 petrol manual
Model Year: 2003
Categories: Running Rough, Starting & Power Loss
car runs fine but when headlights switched on car runs rough and will not pick up revs problem not too bad if only side lights only on
Posted: Mar 16, 2011 (13 years ago)
maybe look for poor connections around earthing points round the back lights they might share the same points as the fuel pump
Posted Mar 17, 2011 (13 years ago)
Could also check alternator charging rate when loaded .
Posted Mar 17, 2011 (13 years ago)
hi i had the same problem at christmas time,had the car checked over by auto electrician who thought it was an alternator/earth fault but could find no faults,few days later the had the aa to plug it into the computer turned out to be the coil pack £30 later no problems, hope this helps
Posted Mar 21, 2011 (13 years ago)

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