Why would my engine be knockinf and oil pressure gauge be going back and forth

Asked by Nov 21, 2014 at 11:57 AM about the 1989 Chevrolet C/K 1500

Question type: Maintenance & Repair

I have cheched the oil and its full

7 Answers


Oil pump could be shot. How many miles are on it?

1 people found this helpful.



Not too many miles but if the oil hasn't been changed regularly it can happen. Is the oil clean? Does it smell like gas?

No the oil is dark and it does have a slight gas smell


I would have a REPUTABLE mechanic look at it. The Chevy 350 (I'm assuming) is very easy to work on. They should be able to put a new pump on it, fairly cheap if the engine is worth saving. Don't run the engine any more if you can help it.

1 people found this helpful.

Will do thank you very much for your help


No problem. Let me know how it goes.

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