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Smoke coming out of oil cap and dipstick

Tiny
BHEDGES
  • MEMBER
  • 1985 CHEVROLET SILVERADO
  • 5.3L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 91,000 MILES
I was driving my truck and it started slowing down and when I pushed on the gas it would not accelerate. I pulled over and was I was pulling over my truck just shut off. I tried to start it but would only crank for about a second. I got out, popped the hood, and there was a large amount of smoke coming from the oil cap and dipstick. I checked the oil level and it was very low. Does the mean my engine is locked up?
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Tuesday, October 24th, 2017 AT 9:47 AM

3 Replies

Tiny
STEVE W.
  • MECHANIC
  • 13,476 POSTS
Does not mean it is locked up, but if the oil was extremely low you may have done serious damage to it.
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Tuesday, October 24th, 2017 AT 3:31 PM
Tiny
BHEDGES
  • MEMBER
  • 2 POSTS
I checked and it is locked up. It did not throw rods or anything though, I took the spark plugs out and sprayed WD40 and penetrating oil in the holes. I also put new oil in it and marvels mystery oil, but it still will not turn over. Any other suggestions?
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Thursday, October 26th, 2017 AT 9:15 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
You just about got it, let it sit is all you can do and then try it. You can use a large breaker bar at the front of the balancer to help rock the crankshaft back and forth.

Let us know,

Cheers, Ken
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Friday, October 27th, 2017 AT 1:00 PM

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