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Runs for thirty minutes then it shuts off

Tiny
STEPHENSR07
  • MEMBER
  • 1977 CHEVROLET TRUCK
  • AUTOMATIC
  • 150 MILES
I have a 1977 Chevrolet Scottsdale with a 350 engine. When I bought the truck it would stay on for thirty minutes then filter would go empty and truck would shut off. I have replaced the fuel pump and fuel filter and it still does the same thing it runs for thirty minutes then filter goes empty and shuts off.
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Friday, May 12th, 2017 AT 6:18 PM

2 Replies

Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,004 POSTS
Just for giggles leave your gas cap off.

Return with results.

The Medic
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Friday, May 12th, 2017 AT 7:37 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,536 POSTS
Hello,

I have seen this problem many times, replace the rubber fuel line from the pump to the tank and the problem will be fixed.

Please let us know what happens.

Cheers, Ken
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Saturday, May 13th, 2017 AT 6:28 PM

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