Fuel pump and engine wiring diagram?

DALEBOUCHSR

MEMBER
1997 CHEVROLET LUMINA
150,000 MILES

What color wire is the power wire on the fuel pump and what voltage should it have

Tuesday, December 11th, 2012 AT 3:25 PM

3 Replies

HMAC300

MECHANIC
48,601 POSTS

It's a gray wire and should have 12 volts. that is by the tank. check fuse and relay under hood first though.unless engine has oil pressure there won't be any power to pump or when relay is active for first 2-3 seconds of key on. Here is the fuel pump wiring diagrams in the images below and a guide to help you test for power

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Check out the diagrams (Below). Please let us know what you find.

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Tuesday, December 11th, 2012 AT 5:25 PM

ARIZONA1

MEMBER
1 POST
1997 CHEVROLET LUMINA
6 CYL
FWD
AUTOMATIC
142,000 MILES

Weeks after an accident, sparks came out from the hood of my car, the car stalled and lost all power, and a small fire began. The fire was put out in minutes, but (clearly) the car would not run. It was towed to a local repair shop.
I need to know what would cause such a fire, what sort of damage could be caused to wiring/cables in such a fire, the approximate cost of repairing such damage, etc.I'm not very knowledgeable when it comes to these things and would like to know that whatever I'm told by the mechanic sounds reasonable.

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Saturday, May 2nd, 2020 AT 11:04 AM (Merged)

MHPAUTOS

MECHANIC
31,937 POSTS

Hi there,

An electrical fire would normally be set off by a power short to earth, this will heat up the wire and ignite the plastic outer cover. The repair will be determined by how much of the loom was affected, Check around the damaged section of the car foe a damaged wire, this may be the starting point of you trouble.

Mark (mhpautos)

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Saturday, May 2nd, 2020 AT 11:04 AM (Merged)