2006 Silverado LM7 fuel filter

[thx1138v2]

Silverado 1500 Crew Cab, short bed, 4WD, VIN engine code T

 

We just got my son's truck out of storage. He's been overseas for two years. I was doing some prep maintenance on it and ran into a fuel filter problem - or maybe not.

 

Going through the VIN specs it appears to be LM7 5.3L V8 MFI.

 

When I looked in the owner's manual I didn't find anything about frequency of replacing the fuel filter. When I went to the parts store, the filter book said to replace filter and pump together.

 

I was concerned about condensation from it sitting up. One of his friends supposedly ran it every month but I don't know how accurate that is.With nothing in the manual about frequency of servicing the filter I guess we just run it till the pump dies and replace both. Is that right?

 

Any suggestion will be appreciated.

[Bob D]

"...run it till the pump dies and replace both. Is that right?"

 

That's correct.

[MikeNH]

Yep. I think 2003 was the last year for an external filter. Though honestly the filter won't do anything to help moisture I wouldn't think nor do I think that is an issue on modern vehicles with sealed fuel systems.

[txab]

Mike is on the money. No serviceable filter on your vehicle. After 2003 GM went to a "return-less" fuel system which, in their thinking, eliminates the need for a filter other than what comes with the pump

[thx1138v2]

Thanx guys. That clears it up. I'm still driving my '94 Sierra and she's doing just fine. All this new fangled stuff gets confusing, said the old codger