- Engine / equipment
- Petrol Ford Focus II
- Period mentioned
- 2004–2011
- Symptoms
- The engine misfires (jerks, runs on three cylinders) and the engine warning light comes on; often after using the screen wash or in the rain.
- Possible cause described
- AUTO BILD (April 2010): on the petrol Focus II the washer jets on the bonnet leak and the aggressive fluid drips into the spark plug wells, where the plugs corrode until they fail.
- Check for the garage
- Have the coil removed and look for fluid or corrosion in the spark plug well. As well as drying it and replacing the plug (and the coil if needed), the leaking washer jet or pipe must be repaired, or it will happen again.
- Cost cited in the source
- No verified estimate; ask the garage for a quote.A rough figure from the original database, not an up-to-date quote.
KNOWN FAULT · Ford
Misfires on the petrol Focus II: washer fluid dripping into the spark plug wells
Sources are not verified in real time and no entry confirms that your car is affected.
Has this happened to you?
Anonymous answer, no personal data.
Frequently asked questions
How much does it cost to repair this fault?
No verified estimate; ask the garage for a quote.
A rough figure from the original database, not an up-to-date quote.
Calculate estimateHow is it checked?
Have the coil removed and look for fluid or corrosion in the spark plug well. As well as drying it and replacing the plug (and the coil if needed), the leaking washer jet or pipe must be repaired, or it will happen again.
What are the symptoms?
The engine misfires (jerks, runs on three cylinders) and the engine warning light comes on; often after using the screen wash or in the rain.
Which cars and years does it affect?
- Brands
- Ford
- Engine / equipment
- Petrol Ford Focus II
- Period mentioned
- 2004–2011
Taking it to a garage?
Models with this entry
- Ford Focus (II)2004–2011
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