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

18,280

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

18,280

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

Add photo

Related Questions

  • Stalling out and wont stay running. Acts like it wants to run but gets choked out. 48 answers

    I have a similiar problem as devin, my 95 Sierra 4x4 it has a 350 5.7L engine and the fuel filter has been replaced I cleaned the injectors out and put a new gasket on. The shop said I have good fuel ...

    1995 GMC Sierra 1500

    -

    Maintenance & Repair

  • rough idle, stalling, loss of power. 225 answers

    o2 sensor code 44 (lean) Replaced: coolant temp sensor, tps, map sensor, fuel filter, and o2 sensor. It will run normal on occasion but only lasts about 45 seconds or so. I don't think its the torqu...

    1995 GMC Sierra 1500 K1500 SL 4WD Extended Cab Stepside SB

    -

    Maintenance & Repair

  • started stalling and dying when in gear 89 answers

    350 motor 4L60E trans Motor wants to stall while in gear (but doesn't do it out of gear once over 1000 rpm it dosent) seem to stall and it is only from a dead stop. Fuel filter has been replaced an...

    1994 GMC Sierra 1500 C1500 SLE Extended Cab SB

    -

    Maintenance & Repair

  • 2003 gmc sierra 1500 wont start 2 answers

    check eng lite was on for 2 days. Was sitting in Walmart idling, started to run rough then died. wouldn't turn over and steering wheel wouldn't lock. Has new battery, all lights and electrical worki...

    2003 GMC Sierra 1500 SLE Extended Cab SB

    -

    Maintenance & Repair

  • truck hit by another at 50mph ran until i shut off 17 answers

    truck hit was still running after impact, I shut it off about 5 minutes later. Had towed home... now it will not start... turns over... no security light blinking, but tried the 10 minute reset... fue...

    2003 GMC Sierra 1500 SLE Extended Cab SB

    -

    General

Sierra 1500

Looking for a Used Sierra 1500 in your area?

CarGurus has 64,326 nationwide Sierra 1500 listings starting at $2,275.

ZIP:

Search GMC Sierra 1500 Questions

GMC Sierra 1500 Experts

#1 dragonflyoffshore
dragonflyoffshore
Reputation 4,850
#2 John Saffrahn
John Saffrahn
Reputation 3,420
#3 Glenn Clingenpeel
Glenn Clingenpeel
Reputation 3,020
View All

Related Models For Sale

Used Chevrolet Silverado 1500
2,035 Great Deals out of 158,130 listings starting at $1,995
Used Ford F-150
2,395 Great Deals out of 208,534 listings starting at $895
Used GMC Sierra 2500HD
125 Great Deals out of 13,770 listings starting at $2,650
Used Dodge Ram 1500
437 Great Deals out of 11,483 listings starting at $2,000
Used Toyota Tundra
544 Great Deals out of 31,897 listings starting at $2,800
Used GMC Yukon
423 Great Deals out of 16,224 listings starting at $2,095
Used Toyota Tacoma
536 Great Deals out of 37,291 listings starting at $2,900
Used Chevrolet Silverado 2500HD
339 Great Deals out of 26,147 listings starting at $2,995
Used Chevrolet Tahoe
609 Great Deals out of 27,569 listings starting at $600
Used Ford F-250 Super Duty
389 Great Deals out of 47,134 listings starting at $400
Used Chevrolet Camaro
158 Great Deals out of 35,580 listings starting at $1,995
Used GMC Canyon
101 Great Deals out of 7,454 listings starting at $2,995
Used GMC Sierra 2500
3 Great Deals out of 167 listings starting at $2,400
Used GMC Sierra 1500HD
3 Great Deals out of 98 listings starting at $2,995

Used Cars For Sale

2017 GMC Sierra 1500 For Sale
32 Great Deals out of 38,576 listings starting at $21,410
2016 GMC Sierra 1500 For Sale
86 Great Deals out of 3,835 listings starting at $18,810
2015 GMC Sierra 1500 For Sale
133 Great Deals out of 4,064 listings starting at $14,999
2014 GMC Sierra 1500 For Sale
133 Great Deals out of 4,399 listings starting at $14,495
2013 GMC Sierra 1500 For Sale
73 Great Deals out of 2,296 listings starting at $8,096