Question about 2001 Chevrolet Blazer

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Gas Gauge works intermittantly

The subject line says it all!! When I put gas in it, ocassionally the gauge shows the correct amount, however when I put my foot on the brake, or shift gears or whatever, the needle on the gauge will go right to empty (& the low fuel light goes on) and then, at some point later on, the gauge will correct itself. It's at the point now where most times it is reading as though I have no fuel.

I've had to go on the # of Kms travelled in order to know how much gas i've got. With the price of fuel going up the # of Kms per say $40 in fuel keeps changing to the point where i've been running out of gas on a semi-regular basis. Now, I don't want to have to change the fuel pump because i'm running out of fuel. I'd rather be able to fix cause of me running out of gas (ie the fuel gauge) completely.

The dealer has offered to try and seek out the problem for us for approximately $500+. and then who knows how much to fix it. Before I spend that much money, I'd rather see what I can find out here first. Hubby thinks it might be a problem with the computer because the console gauge(where the fuel economy, fuel used, etc is shown) isn't reading correctly either, any ideas??


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  • sher-604 Sep 30, 2008

    I checked as well and found that the sending unit and pump were a complete unit.

    Guest, were you able to fix the problem by replacing the pump/sending unit??? Hubby is still arguing that it's the computer because the overhead digital gauges don't work property either. Do yours?

  • chris_be_Fox Mar 08, 2009

    I have a 2000 Honda Passport and it is doing the exact same thing --- there's another problem in tandum ---- when I go to fill my tank up, it only let's me get about 8 gallons in before it signals the pump to click off (indicating the tank is full) --- I believe the tank size is larger than that... my fear is that this will be a costly repair... thoughts?



2 Answers

I have this problem also. Unfortunately, the sending unit and the pump are all in one. I checked at AutoZone for the part, $260.99-$361.99.

Posted on Sep 30, 2008

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That dealer is trying to hose you. The problem is the sending unit in the tank. It's usually a separate part from the fuel pump and is replaceable for around $40-70 for the part. The labor is not cheap, as you'll have to drop the gas tank, but with a basic set of tools and a handy list of curse words it can likely be done at home over the course of an afternoon. If you contact AutoZone or Advance Auto Parts, they can tell you whether you can buy the sender separate from the pump (again, most vehicles have them as separate parts). Give them a try and see what they say - you could end up saving a ton of money.

Posted on Sep 26, 2008

  • gigspeakers Jun 25, 2012

    Follow Jeremy on this one peeps, my wife has the same prob.... she knew better and still ran it dry and blocked a jet... now i have to fix all of it... women !! ,, lol,,, yup go get a fuel pump and fuel sensor complete, find a suitable jack too.. ;) tools , those trusty swear words and the rest shud be a goodun , even if it does take a few hours.. bet you had this pain for month.. good luck to all.



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