Ok. The gas gauge on my Blazer is irratic. It jumps around all the time, and is quite annoying because I never know for sure how much gas is in the tank. So my question is how/what do I do to fix this problem of mine? It's been like that for a year or so and the fuel pump is fine, as far as I know.... Thanks!

After I posted, I googled crazy blazer gas gauge and I found this website. It said the in order "to replace the sending unit the fuel tank will have to come out." I found a AC-Delco fuel sending unit on eBay for $40 shipped. How difficult is it to fix this problem? Thanks.

 

I got mine done and it costed me like $800.. the pump and sending unit it an all in one as far as I know.. might wanna check on it.. you gotta drop and tank and stuff.. thats all I know, got it done at a shop.. the unit alone was $650.. (ACDelco)

 

$800. Wow. I don't think it needs to be done now. Does a crazy gas gauge mean I have other problems with my fuel system that I am unaware of? KLBlazer-Was it worth it just to fix that darn gauge? lol

 

eh...I don't know...mine's been broke for almost a year now....I just set the tripp...works pretty good....as for what year blazer you have..I don't know...but after a certin year the sending unit and pump are together...at around 600.....so up to you

 

I don't regret it one bit! Couldn't be happier that I got it fixed! Before it was a big headache and pain in the *** and very frustrating.

 

It's a 2000, same as yours.

 

The fuel tank need to come out of the truck, then the sending unit/ fuel pump module needs to come out, then the sensor just gets replaced on the module.It is not that bad of a job but youwill want a helper escp. if you have allot of gas in the tank. Recently GM started to supply just the fuel level sensor, because of the high replacement rate. They are pretty cheap, but if you pay someone to do the labor it can still be a couple hundred dollars. Korey

 

Yeah, mine just started doing this so I may do a writeup on this fix once the weather gets nicer.

 

You can add me to this list. I'm with Paddle_grl...reset trip meter and fill up no later than 260 (I've made it into the 280s, but was very nervous). I'm going to live with it until (if?) the fuel pump goes out.
Garry

 

280? Best I have ever done was 230 and that included stalling twice to get to the gas pump lol. People behind me got pretty mad after the second time...