gas gauge going crazy.

[matt73]

My wife has a 2000 blazer 4.3L, and the gas gauge moves all over the place when sitting at an idle. Anybody have any ideas what it could be?.




Thanks Matt

[Blazer69]

prolly the float let loose.....

[PitchBlackBlzr]

I have to agree . Your problem could be anything from the float to the actual wire for the gauge itself in the cluster harness.

[T Man]

sounds like either the float is loose, or my opinion, you have a loose connection or a short somewhere. The conditions are right at idle that it wiggles or shorts the wire causing the gas gauge to "go all over the place"

[miself_s10]

s-series have chronic gas guage problems, could be anything to tell you the truth, best bet is to take it to a dealer or a good shop and have them take a look at it (dealer if its still under warrantyeven tho its a 2K)

[LEADFOOT]

matt, tell you what happen to me. down here in tampa,fl they had a problem with some gas stations that had bad gas. it had too much sulfur in it. the sulfur causes a film on the float contacts and doesn't allow contact between the 2 parts(jedi master can probably tell you what i mean) i just can't think of it right now. but any way i always buy my gas at mobil and at the same mobil station, right by my house. i have a speed pass so it makes it convient. plus with another vehicle i had, twice i got water in my tank from getting gas every where and any where. thats why i buy from 1 place or atleast try to. any way back to the subject. one day i wasn't near a mobil and was headed to another county so i decided to fill up at an amoco. i went 110 miles and the needle didn't move even when in P or N. after it started to move it went crazy bouncing all over the place like i was off roading over rough terrain. now i just thought about something the needle only moves when in park or neutral unless you have drove along ways with out going into P or N. my needle didn't move untill i went into P or N and then it was all over the place. after a couple of tank fulls of mobil fuel it stopped doing that. i think got some of that bad gas.

[PitchBlackBlzr]

bad gas is always somthing you want to avoid( oh man i couldnt help myself there)