How do I replace the gas tank float?

	Blazer Forum Classifieds Photo Gallery Search Contact BF Sponsors
Blazer News Member List Forum FAQ Timeslips Recalls TSBs Calendars Register Login

How do I replace the gas tank float?

Printable Version

Blazer Forums >> Mechanical & Maintenance >> General Tech Help >> How do I replace the gas tank float?

Page: [1]

Message

<< Older Topic Newer Topic >>

How do I replace the gas tank float? - 6/23/2006 9:15:41 AM

ytsurkytsur

Posts: 1
Joined: 6/23/2006
Status: offline

Hi, have a 97 Blazer LS 4 door w/4.3L V6. Fuel gauge will not go below 3/4 tank so I believe the float is bad. What steps are required to access and replace it? Thanks in advance.

_____________________________

ytsurkytsur

Post #: 1

RE: How do I replace the gas tank float? - 6/23/2006 10:16:47 AM

swartlkk

Posts: 14299
Joined: 5/1/2005
From: Waterloo, NY
Status: offline

I have yet to hear of a float going bad in our blazers. More often than not, it is the fuel level sending unit which is part of the fuel pump assembly. In my experience, when a float goes bad, the gauge will always read empty because the float is full of fuel (in the case of the old brazed brass floats) and would sit on the bottom. I haven't ever had a blazer tank down, but I am fairly certain that the floats are now made of plastic which really can not go bad.

Now before you go pulling your tank, atleast try to probe the wires for the sending unit in the tank. Possibly clean the electrical connections and see how that goes. There is a circular indentation on the bottom of your tank. If you hit that with your fist (don't hurt yourself) with what you believe to be below a 3/4 tank, does that influence the fuel gauge reading?

If you have done all of this and it still does not work, then you will more than likely have to drop the tank and replace the fuel pump. I do not believe that the fuel level sending unit is independantly replaceable, which really sucks when that is the only thing wrong. Many on here have learned to fill up based on their trip odometer because their sending units have gone bad. Not a bad choice if you are strapped for cash.

Good luck!

_____________________________

Kyle-

2004 Rainier
1970 Chevelle - Resto
1974 K5 Blazer - Resto

(in reply to ytsurkytsur)

Post #: 2

RE: How do I replace the gas tank float? - 6/23/2006 6:33:31 PM

97blazer44

Posts: 33
Joined: 5/15/2006
Status: offline

Yea its gonna be the sending unit mine was doing the same thing, had mine replaced after I bought the truck for free, it will come in a whole assembly with pump and sending unit.

< Message edited by 97blazer44 -- 6/27/2006 6:43:23 PM >

_____________________________

1997 Blazer 4X4 4.3 Vortec

http://www.ikesound.com
http://www.realmofexcursion.com
www.onlinecarstereo.com
www.silverraven.com/fy.htm
www.nfl.com

(in reply to swartlkk)

Post #: 3