2002 Volvo S40 Q&A

2002 Volvo S40 Question: check engine

check engine light came on and had it checked and said cylinder 1 and 4 what does that mean -
Answer 1
What were the specific codes stored? Most likely a misfire in number cylinders 1 and 4. It could be many things, unfortunately and without experiencing the problem first hand or being able to do some basic diagnostic tests its hard to say. A misfire could be caused by a mechanical problem (Low compression in a cylinder), it could be caused by a loss of spark (bad coil or spark plug) loss of fuel (bad fuel injectors) or a vacuum leak. -
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