1999 Ford F-150



June, 9, 2013 AT 4:58 PM

I had someone change spark plugs for me, he recommended that I NOT put in the platinum plugs, so copper plugs were put in. Afterwards the engine started knocking really bad. He said it was out of oil after that, I don't believe him. In the 5 years I've had this truck I have never had a problem with the oil. Any thoughts or suggestions?

1 Answer



June, 9, 2013 AT 5:14 PM

If you have not already, check oil level and also oil pressure with a mechanical gauge, start here.

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