working on 02 yukon new fuel pump and filter but no power at the tank ran jumper wire to the prime spot on fuse block and i get power. was going to reverse power to see if i get power going backwards

Asked by Sep 27, 2013 at 08:32 PM about the 2002 GMC Yukon 4WD

Question type: Maintenance & Repair

i am working on a o2 yukon replaced fuel pump and filter but not getting power at the pump. If i run a jumper wire from the battery o the prime spot on the fuse block i get power. but no power any other way.

4 Answers

6,925

Did you blow a fuse anywhere ? From what you have explained, you are only jumping the fuse block in order to get power to the fuel pump. First I would tell you to look for a blown fuse and then to get a test light and follow the wiring for power from the under hood fuse block to the pump itself.

yes i found the ecm fuse was blown. after that tried to start it got nothing checked the old pump and it worked so new pump is bad. put old pump in started it and blew the ecm again so there is a short between fuse block and fuel pump. so either run down the short or replace the wire from fuse block to the pump is my best guess.

ok ran new wire from fuse block to fuel pump and still blowing ecm fuse. if i disconnect wire from fuel pump ecm fuse don't blow so going to try a new fuel pump.

6,925

Make sure all your grounds are good everywhere (clean and tight), especially between the fuel tank and the frame as well.

Your Answer

Add photo

Related Questions

Yukon

Looking for a Used Yukon in your area?

CarGurus has 18,226 nationwide Yukon listings starting at $2,950.

ZIP:

Search GMC Yukon Questions

GMC Yukon Experts

#1 clayduster71
clayduster71
Reputation 2,150
#2 David Boccabello
David Boccabello
Reputation 500
#3 Danielle Heller
Danielle Heller
Reputation 470
View All

Related Models For Sale

Used Chevrolet Tahoe
547 Great Deals out of 29,234 listings starting at $1,699
Used Cadillac Escalade
239 Great Deals out of 11,197 listings starting at $2,495
Used GMC Yukon XL
236 Great Deals out of 12,302 listings starting at $2,950
Used Chevrolet Suburban
320 Great Deals out of 19,720 listings starting at $2,000
Used GMC Sierra 1500
819 Great Deals out of 68,199 listings starting at $2,484
Used Ford Expedition
472 Great Deals out of 24,887 listings starting at $700
Used Chevrolet Silverado 1500
1,717 Great Deals out of 175,751 listings starting at $1,250
Used Ford F-150
2,194 Great Deals out of 206,316 listings starting at $1,499
Used Jeep Grand Cherokee
1,022 Great Deals out of 74,888 listings starting at $750
Used Ford Explorer
945 Great Deals out of 72,518 listings starting at $1,000
Used Dodge Durango
273 Great Deals out of 22,704 listings starting at $1,200
Used Toyota 4Runner
254 Great Deals out of 20,494 listings starting at $1,800
Used Toyota Sequoia
154 Great Deals out of 5,651 listings starting at $2,700

Used Cars For Sale

2017 GMC Yukon For Sale
16 Great Deals out of 8,841 listings starting at $39,124
2016 GMC Yukon For Sale
14 Great Deals out of 1,036 listings starting at $34,750
2015 GMC Yukon For Sale
31 Great Deals out of 1,384 listings starting at $29,251
2014 GMC Yukon For Sale
17 Great Deals out of 389 listings starting at $21,995
2013 GMC Yukon For Sale
39 Great Deals out of 724 listings starting at $14,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.