Gas Gauge

[zorrro]

In my 2001 2500HD sometimes the gas gauge wigs out. It goes to below "E" and the message center flashes a low fuel warning. If I turn the truck on and off again it goes away and returns to the proper fuel level. Sometimes it returns to the proper level once the engine revs above Idle. Anyone experience this? Does it sound like a gauge or a sending-unit problem? Thanks Zorrro

[TROYROBO]

i do not know either-????????--mine started doing the same thing this week

[c5vetteman]

In my 2001 2500HD sometimes the gas gauge wigs out. It goes to below "E" and the message center flashes a low fuel warning. If I turn the truck on and off again it goes away and returns to the proper fuel level. Sometimes it returns to the proper level once the engine revs above Idle. Anyone experience this? Does it sound like a gauge or a sending-unit problem? Thanks Zorrro

I bet it is the fuel sending unit as I had it replaced on my old truck with the similar symptoms.

[gmcjoe]

I bet it is the fuel sending unit as I had it replaced on my old truck with the similar symptoms.

Yep - sounds like the sending unit. I have run off of my trip odometer for over 60K miles now

[rubishawn]

I had my 01 1500 in the other day for maintenance and the service writer told me it was the sending unit,and that means the fuel pump is on its way out.

 

$700 parts and labor.

[gmcjoe]

I had my 01 1500 in the other day for maintenance and the service writer told me it was the sending unit,and that means the fuel pump is on its way out.

 

$700 parts and labor.

My sending unit blew 60K ago, fuel pump is still fine.

Don't let them sell you chit you don't need...

[1BADHD]

Could be a bad ground to....

[michigan2500hd]

This same thing has been going on in my 2000 1500

w/ 5.3. I've been told it is the sending unit, which is

located in the gas tank. Something about it having

copper terminals that go screwy. I think they went to

stainless starting with 2002. GM should have recalled

these trucks, you know they knew it was going to be

a problem. Now we have got to pay to have the

tank dropped or just use your odometer and

remember to reset it when you fill up! ( trip meter )

[zorrro]

Thanks for the replies! After some research I found that the sending unit and the fuel-pump come in the same package. This is the reason for the high price. It sounds like a simple operation to replace.

 

Run low on fuel

Remove gas tank and unplug wires

Put in new sending unit/fuel-pump combo

Wire up and install tank

 

My mechanic buddy has had to this to a few of these trucks and recommends spending the extra dough and getting the part from the dealer. It looks to be in the $300-$500 range. I'll give it some time to fail all the way, then look into replacing.

 

The good news is I'll have an emergency fuel pump to carry on those long hauls

 

FYI

 

Zorrro