1996 Chevy Astro 1996 Astro Fuel Pump Electrical

ZIGGYSTAL

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1996 CHEVROLET ASTRO
6 CYL
2WD
AUTOMATIC
220,000 MILES

My fuel pump is not engaging when starting the car (because I can't hear it priming). THe fuel pump is new, so I'm thinking its not getting electricity/pwer. How exactly can I check this? I've already checked the relay and it's working. Is there something beyonf the relays I can check to confirm if the pump is getting electricity?

6 Replies

DOCFIXIT

MECHANIC
18,828 POSTS

You should be able to get to wiring at pump check for power. The relay clicks?

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Sunday, November 30th, 2008 AT 2:03 PM

ZIGGYSTAL

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9 POSTS

Yes the relay clicks. IN terms of the fuel pump, which wire(s) are the ones that give electricity to the fuel pump? Just so I know what cables to check. To check these am I going to have to dismount the fuel pump again?

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Sunday, November 30th, 2008 AT 3:38 PM

DOCFIXIT

MECHANIC
18,828 POSTS

At the relay use a jumper wire from D2 to C3 see if pump runs. If not then check gray wire for power and black for ground.

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Sunday, November 30th, 2008 AT 4:44 PM

ZIGGYSTAL

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9 POSTS

What do you mean by D2 and C3? Are these terminals where the relay goes in? There's 5 little terminals there, 3 on one side and 2 on the other. How would D2 and C3 apply to those?

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Sunday, November 30th, 2008 AT 5:51 PM

ZIGGYSTAL