mines broke now i replaced fuel pump and it worked before that it doesnt now pisses me off. i hate walkin lol.
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mines broke now i replaced fuel pump and it worked before that it doesnt now pisses me off. i hate walkin lol.
mine does...wifeys 01 tahoe doesnt. well it drops and raises every few mintues. but when its up its up.. just like me....lol
my 99 works fine... It will OCCAISIONALLY read empty, but when I get in and shut the door if it's running, it'll go back to normal. Reads accurate all the time though.
Guess I'm lucky
OK guys, here's what you are dealing with. The problem is at the sending unit in the tank, but it isn't the sending unit failing due to defect, it's failing due to the fuel you are running. Unfortunately, fuel is expensive these days, so we buy the cheapest gas to be found. Cheap fuel is high in sulfur content(comparably) and has very little detergents in it. Over time, this erodes the fuel sending unit contacts in your tank. Then the gauge starts doing goofy things, acts erratic, only works sometimes, you get it, right? GM, Honda, and some other auto manufacturers all got together and came up with fuel standards to reduce these failures. It is called Top Tier Fuels. Chevron's fuel already passed these standards, but there are other brands also. In Alaska, Top Tier Fuel is available only at Chevron or Shell stations. You'd have to check around in your area to find out where to buy it.
Nope. They fail due to a ****ty connector design on the top of the fuel bucket. There is a serice bulletin for it that makes you splice in a new connector on the truck harness and swap a different plug into the top of the fuel bucket that the fuel pump and sender plugs into. The actual sender itself goes bad due to this. After seeing the condition of my plug on my old truck I can see why it would cause the sending unit to register wrong and make it go bad.Quote:
Originally Posted by AKlowriderZ71
Just a quick tech tip. If you have an erratic fuel gauge, before you buy a sending unit, try this. Go buy a bottle of Chevron fuel injector cleaner with Techron, and add it to your gas. This has worked for several people, and saved them alot of money.
By the way, my truck was bought new in June 2000, has 108,000 miles on it, and I have never had a fuel pump/sending unit problem, or clogged injector. I've never used anything besides Top Tier Fuel, and replace the fuel filter every 30,000 miles.
I worked in GM service departments from 1993 to 2006. I know about the bulletin regarding the connector, and in all those years, I saw that condition about 5 times. These vehicles also had COMPLETELY plugged fuel filters, which causes excessive current draw on the fuel pump motor, which cooks the connector. The design of the connector made it easier to overheat, so GM came out with the bulletin for the connector(GM covering their asses for potential fires). The other 5-10 fuel pumps per day that we replaced were due to fuel quality.Quote:
Originally Posted by 1slow01z71
I thought the EPA mandated lower sulfur content years ago. I've personally had two vehicles that had the fried electrical connector and the pumps were still fine. The fried electrical connectors never affected the fuel level sensors though in my 92, 93, 95 and 97 GM trucks. My '07 fuel level sensor works flawlessly. :thumb:
Mine is VERY weird. It works when driving but if you let it idle or come to a stop light after a few seconds the fuel light will come on and it shows empty. HAHA if you put it in NEUTRAL it will start working and show the fuel level, also once you start driving it will start working again.
I dont think it is in the sender since when I am hooked up to HP Tuners and scanning the fuel level it will always work even when the gauge doesnt. So I think it has something to do with the gauge, what I dont know :shrug: