I was told by a mechanic that my mustang has the number 4 spark plug not getting pressure and it needed a valve job can I value his judgement?
Feb 21, 2008 at 10:02 PM
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2CARPRO JACK
✓Experienced Mechanic
11,533 POSTS
I dont really know him so...... at that mileage it could very well need it. How did he come to this conclusion? Compression test? cylinder leak down test?