No power to fuel pump but got power at relay. Fuse r good to

JERMAINEHARDY

MEMBER
2002 CHEVROLET TAHOE
13,600 MILES

The battery died on my tahoe I jumped it it will turn over but will not start I changed the fuel pumpn come to find out the old pump work I checked the fuse n relay both r good theres no codes on the dash. So I put a test light on the pump theres no power goin to the pump, so I added power to it the pump came on n I had persure. But it steal will not run just cranks.I checked under the seat for dad wires if soneone can hrlp or fix please replie

3 Replies

ASEMASTER6371

MECHANIC
52,797 POSTS

You have a control issue with the relay. It is controlled by the pcm. Now, dont run out and replace this. You need to find out why it is not turning it on.

Did you cross the cables trying to start this?

Were there any issues prior to this failure?

Roy

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Monday, November 21st, 2011 AT 3:52 PM

JERMAINEHARDY

MEMBER
1 POST

This has never happen bfore I didnt croos wire when I jumped it off what do I need to do to fix. Thanks

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Monday, November 21st, 2011 AT 4:09 PM

ASEMASTER6371

MECHANIC
52,797 POSTS

From here, we cannot see what the issue is. You need to have someone with a scan tool check this to see if the relay is being commanded to turn on the fuel pump. You will need a shop to help you out here.

Roy

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Monday, November 21st, 2011 AT 4:12 PM