2003 serria fuel gauge goes all over the place stays on empty the up and down also have engine light on code saying large evap leak new fuel pump and sending unit a year and a hlf ago

Asked by Nov 19, 2014 at 08:52 PM about the 2003 GMC Sierra 1500 SLE 4WD Standard Cab SB

Question type: Maintenance & Repair

Fuel Gauge

3 Answers

20,830

It's probably still the sending unit.(VERY common with GM vehicles) Where did you get the one you put in a year and a half ago? the EVAP code is probably the vent valve or charcoal canister but it could be the gas cap(it's almost never the cap though).

sending unit is a GM part

20,830

It could be a pinched wire shorting out the wire to the cluster? It could be the cluster itself. I've replace A LOT of them over the years. 1999-2006 where just bad clusters. Enough GM had a recall on them (but I think it has to be under 80 or 100,000 miles)

Your Answer

Sierra 1500

Looking for a Used Sierra 1500 in your area?

CarGurus has 64,510 nationwide Sierra 1500 listings starting at $999.

ZIP:

GMC Sierra 1500 Experts

  • #1
    dragonflyoffshore
    Reputation
    5,450
  • #2
    John Saffrahn
    Reputation
    3,780
  • #3
    Glenn Clingenpeel
    Reputation
    3,470
View All

Related Models For Sale

Used Chevrolet Silverado 1500
2,647 Great Deals out of 173,968 listings starting at $955
Used Ford F-150
3,216 Great Deals out of 220,452 listings starting at $1,200
Used GMC Sierra 2500HD
110 Great Deals out of 14,208 listings starting at $2,799
Used Toyota Tundra
697 Great Deals out of 34,232 listings starting at $1,500
Used Chevrolet Silverado 2500HD
390 Great Deals out of 30,492 listings starting at $2,995
Used Dodge Ram 1500
442 Great Deals out of 11,137 listings starting at $2,000
Used Toyota Tacoma
707 Great Deals out of 45,311 listings starting at $1,000
Used Chevrolet Tahoe
833 Great Deals out of 41,907 listings starting at $1,987
Used GMC Yukon
618 Great Deals out of 20,715 listings starting at $2,600
Used Ford F-250 Super Duty
391 Great Deals out of 48,884 listings starting at $1,899
Used Cadillac Escalade
262 Great Deals out of 11,921 listings starting at $1,200
Used Chevrolet Colorado
343 Great Deals out of 37,948 listings starting at $1,595
Used Chevrolet Camaro
452 Great Deals out of 31,412 listings starting at $1,450
Used GMC Canyon
160 Great Deals out of 13,763 listings starting at $2,900

Used Cars For Sale

2018 GMC Sierra 1500 For Sale
25,962 listings starting at $24,499
2017 GMC Sierra 1500 For Sale
88 Great Deals out of 11,158 listings starting at $20,369
2016 GMC Sierra 1500 For Sale
175 Great Deals out of 4,063 listings starting at $16,404
2015 GMC Sierra 1500 For Sale
205 Great Deals out of 5,587 listings starting at $14,995
2014 GMC Sierra 1500 For Sale
205 Great Deals out of 4,931 listings starting at $9,900

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.