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EMRSR, Certified Service Manager
Category: Car
Satisfied Customers: 3010
Experience:  30 years dealership experience
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Lincoln Aviator: run fine..few rough..knocking

Customer Question

I have Lincoln Aviator 2003.When I turn on the engine it run fine but after few minutes it
start to run rough and I hear some knocking. Last week it quit to run rough for half a day
but it came back again.
Submitted: 7 years ago.
Category: Car
Expert:  Mike Kelly replied 7 years ago.
Hi,how are you?Is the check engine light on?
Customer: replied 7 years ago.
Yes it is on but some times it bliks! May be while it is running fine or after it when I am
Expert:  Mike Kelly replied 7 years ago.
Ok,have you been able to have the vehicle scanned for trouble codes?
Customer: replied 7 years ago.
It has given all cylanders random missfire and code#316
Expert:  Mike Kelly replied 7 years ago.
Ok,if you have not done this,then you need to replace the spark plugs and the coils.This vehicle has a coil for each cylinder and they are electrical,they can create a situation where they will work fine and then misfire.This would cause the vehicle to run as you are describing.
Customer: replied 7 years ago.
Ofcourse I have changed all spark plugs twice! and the dealer has changed all coils
beacuse this car had recall for coils.Even they refounded my money after they could
not find out the problom.
Expert:  Mike Kelly replied 7 years ago.
Ok,i am going to open your question back up,and let others take a look,someone will be with you shortly,thank you.
Customer: replied 7 years ago.
Thank you very much I wait.
Expert:  EMRSR replied 7 years ago.
Can I get a VIN # ?