engine bucking and makes a squelling noise

2003 FORD ESCAPE
195,000 MILES • 3.0L • V6 • FWD • AUTOMATIC
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JEREMYTOUROUT
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  • 1 POST
i had my engine diagnosed and there are no codes. But the engine bucks and misfires and theres a squelling noise that comes and goes away when the tranmission shifts it squells then goes away
Jun 25, 2015 at 4:12 PM
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MHPAUTOS
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  • 31,937 POSTS
Check coils and plugs for the misfire, look closely at the plugs where they fit over the coil boots, you may see faint lines running down the spark plugs if so these are tracking marks and the coils and plugs are faulty.
Jun 26, 2015 at 5:50 PM