Car making Knocking sound

Asked by Nakisa May 24, 2017 at 02:17 PM about the 2001 Ford Mustang GT Coupe RWD

Question type: Maintenance & Repair

I have a 2001 v6 mustang and when I started it today it
has a knocking sound, I just had an oil change and have
new spark plugs. It's loud on the passenger side.
Anybody have any ideas?

9 Answers
14,405

dariusk8 answered 7 years ago

Does this sound happen when standing still....or driving? I could not tell from your note

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14,405

dariusk8 answered 7 years ago

Most likely a connecting rod bearing is worn out, the best thing to do is have a mechanic listen to it! Oil AROUND the spark plug is most likely from a leaky valve cover gasket. How many miles on the car? Been run hard? Been serviced properly? This is usually a very durable engine!

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Nakisa answered 7 years ago

When I hit the gas it makes the sound, it also makes the sound when I first start the car then it stops.

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14,405

dariusk8 answered 7 years ago

how many miles? Is car overheating? Is needle ( temp gauge) in the red or over mid point? Could be the bearing in water pump... Need more info please

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Nakisa answered 7 years ago

The car has about 200k but has been well taken care of. Car was overheating before I changed the ccrm and the fan.

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