1996 Chevy Silverado Low oil

BFO1

MEMBER
1996 CHEVROLET SILVERADO
V8
4WD
AUTOMATIC
124,000 MILES

I drove my truck with the oil cap off on the freeway for about 200 miles. Oil split out, but there was still about 2-3 quarts left in it when I realized my mistake. The engine did not over heat, but there is this random revving sound that occurs ocationally now. More worry some in the rattleing below the engine when I travel over gravel. What is the impact of running an engine on low oil at high speed?

3 Replies

JACOBANDNICKOLAS

MECHANIC
109,645 POSTS

Did the oil light ever come on? When running, do you hear any knocking or ticking?

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Thursday, May 28th, 2009 AT 7:38 AM

BFO1

MEMBER
2 POSTS

The light never came on. Also, B4 the incident the oil pressure gauge was not working from a previous oil change. Since the incident, and after taking the truck to the same mechanic which knocked out the oil gauge to begin with, it now works again. I had mentioned to him the gauge stppped working after I had it in and his guys looked at it and couldn't fix it. Guess the gauge fixed itself accidentally.
When I first noticed the low oil accident, and for about 400 miles afterward, I heard a knocking and pinging internally below where the motor resides in the hood. Lately it has been better, but when I drive on gravel or bumpy roads I hear all sorts of rattleing internally below the motor. Lots of rattling. What could that be? Are the parts so worn from driving at low oil I now have too much wiggle room internally. What would those parts be? The check engine light comes on when I haul wood, but goes off when I get back into town and as of occationally, but latley I am feeling more secure in the fact I'm not going to break down in the woods. Knocking and pinging yes, what is pinging? Thanks, brad.