What is causing a very loud knocking noise in my engine area?

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1988-1998 Chevrolet Pickup

Formally called the Chevrolet C/K, C/K is a series of trucks manufactured by General Motors and marketed under the Chevrolet and GMC brands. The C/K line includes pickup trucks, medium-duty, and heavy trucks.

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poohandhunnypot @poohandhunnypot

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Posted: Sep 9, 2019

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What is causing a very loud knocking noise in my engine area?

I have a 1989 Chevrolet C3500 one ton pickup truck, it has 66,000 orginal miles on it.

A couple weeks ago it started making a very loud knocking noise on my way home from work. The noise seems to be coming from the engine area. It has a 454 7.4 liter engine. The oil level is fine and just recently did an oil change using valvoline 5W30 motor oil.

Any suggestions of what might be going on ?

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Maybe an idea to post video/audio clip of your truck noise somewhere like Youtube or Imgur. Lots of things in could be including broken engine mount.

Sep 9, 2019 by prop man

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Maybe an idea to post video/audio clip of your truck noise somewhere like Youtube or Imgur. Lots of things in could be including broken engine mount. — prop man