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1993 Chevy S-10

Tiny
KINGKEV
  • MEMBER
  • 1993 CHEVROLET S-10
Electrical problem
1993 Chevy S-10 4 cyl Two Wheel Drive Automatic

When the key is turned off on my S10 the fuel pump keeps running. When the truck is running the pump runs constant right? What shuts the pump off or cuts the power to the pump when key is off? What could be my problem?
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Thursday, January 1st, 2009 AT 9:39 AM

1 Reply

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
The problem is usually a faulty oil pressure switch in the fuel pump circuit. That switch should be located by the oil filter. The wiring colors show to be orange--tan--gray for the connector. If that doesn't fix it, the next stop is the relay.
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Thursday, January 1st, 2009 AT 11:29 AM

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