Tank reserve question

[HummerNewbie]

Originally Posted by fourfourto

Instructions is in the owners manual.Its easy to change I beleve you have a few options.

X2 I have mine set to honk.

[aggiehummer...er]

Put the key in, turn it to the "ON" position without stopping the car. Simultaneously press the lock and unlock buttons on your key fob. You'll see a message on your driver information center (odometer area) that says RKE 1. You can press the reset button to switch between the different RKE (Remote Keyless Entry) modes. I think Lock Honk is mode 2 or 3.

[Wisha Haddan H3]

Is the H3 fuel pump inside the tank like other GM vehicles? If so, it's using the fuel to keep cool. So if you drive past /E a lot, the pump could fail early.

[f5fstop]

Originally Posted by Wisha Haddan H3

Is the H3 fuel pump inside the tank like other GM vehicles? If so, it's using the fuel to keep cool. So if you drive past /E a lot, the pump could fail early.

It is in the tank, and yes, I would agree, keep it a quarter full to help cool the pump. (Someday, I'll learn to do that myself ) However, the fuel running through also cools down the pump. The real problem is if it is bone dry and the pump is running.

[H3.007]

While I have never experienced the problem, a lot of veteran mechanics will tell you to never run the tank that low. Not only are the observations correct about running a pump dry (this applies to many, many pumps for various liquids) it also causes any tank sediment to be sucked up. This could cause fuel filter and injector clog, etc.

My $.02