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Tiny
BIGFINGER
  • MEMBER
  • 1997 CHEVROLET S-10
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 130,000 MILES
1997 chevy s-10 4.3 automatic. After it sets for a couple of days it won`t start without the help of stating fluid. Once it starts it`s ok untill a couple of days again. What could be the problem? Thanks Jerry
Tuesday, July 12th, 2011 AT 6:41 PM

6 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Use a gage and check fuel pressure. If you have the spider fuel system, they are noted for problems. How long since a tune-up? Battery has a full charge?
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Tuesday, July 12th, 2011 AT 7:03 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Just to add, if you have the spider fuel system, pressure is 60--66 psi, key on engine off.
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Tuesday, July 12th, 2011 AT 7:05 PM
Tiny
BIGFINGER
  • MEMBER
  • 3 POSTS
I will check the fuel pressure, it won`t be untill tomarrow. Recent tune-up and a fully charged battery. Thanks Jerry
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Tuesday, July 12th, 2011 AT 7:35 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Let us know what you find.
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Tuesday, July 12th, 2011 AT 7:55 PM
Tiny
BIGFINGER
  • MEMBER
  • 3 POSTS
Fuel pressure shows 60 lbs but won`t hold pressure when fuel pump stops pumping, with motor runing it shows about 50 lbs at idle
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Wednesday, July 13th, 2011 AT 3:45 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
After the pump stops, if you block off the supply line and the pressure holds, I suspect the fuel pump.

A couple other thoughts, leaking fuel injector/poppet, or leaking pressure regulator. Does your crankcase oil smell like gas?
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Wednesday, July 13th, 2011 AT 4:29 PM

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