I have a 2004 Suburban 1500 with ~163k miles, and among other things my gas gauge gives wacky readings. In general I’m just unsure of how many miles I’m actually gonna get out of a tank when I consult the range projected by the computer, which is super problematic for road trips and planning gas stops. I’ve experienced a projected range of 100+ miles drop to 30-40 in the span of about 10 actual miles on the road multiple times. Sometimes I’ll get home on 1/4 tank and the next time I drive it, the empty light is on... or vice verse. Parking on an incline/decline plays a factor, but I’ve found that still, readings won’t correct even after I’ve returned to level roads. I’m guessing that the pump/sending unit has kicked the bucket, but wanted to ask if there could be something else going on. Any ideas?
Faulty gas reading
- Thread starter nosole
- Start date
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Sounds like it but I can tell you once mine is below 1/4 tank it’s anyone’s guess. Nose higher gets me higher reading and if my light comes on going down a hill it only resets if I turn it off and back on.
wjburken
Supporting Member
That reminds me of the time about 40 years ago when my aunt, who is now in her early 80's, was telling my mom that she liked to keep at least 1/2 a tank of gas in her car because she got better gas mileage when she did. My mom asked her why she thought that and my aunts reply was because it takes longer for the needle to go from Full to 1/2 than it does to go from 1/2 to empty so she must get better mileage. My mom just shook her head and walked away.
treehan77
TYF Fiend
Mine did this, occasionally light would come on if I parked on an incline, then would move up between 1/4 and 1/2 as I drove. After I replaced the fuel pump, it works perfect now.
Haha! I love that she was essentially right but for the completely wrong reason!
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