1999 Chevrolet Tahoe "cause fluctuating fuel guage chevy" Questions

cause of this problem is the sending unit for the fuel guage, it is located in the gas tank. U may have to replace the fuel pump module to get the sending unit, as a rule they are one piece, if u have

...fuel sending unit will either increase or decrease.an example would be a full tank of gas will cause a floater attached to a lever to float to the top of the gas tank. now as the gas gets lower the ...

...Fuel Economy Mode" if additional voltage is required. This will cause the voltmeter to fluctuate between 12 and 14 volts as opposed to non-regulated systems that usually maintain a more consistent ...

...fuel. Good Luck, and thanks for using FixYa - A FixYa rating is appreciated!! well Allan i'am alittle confused here trying to understand your problem. Now does the temp guage move off lowest setting ...