Hi I am new to this form I have a 2001 Chevy Tahoe with a 5.3 would like to be able to increase the fuel mileage

[BlackBearPerf]

Fuel Economy of the 2006 Chevrolet Tahoe 1500 4WD

2006 Chevrolet Tahoe 1500 4WD. Search by make for fuel efficient new and used cars and trucks

www.fueleconomy.gov

Right on!

 

[03X2]

Welcome to the forum and agree with what @Doubeleive said. At 270k miles, you just need to live with what you have unless you need some tune related parts. How old are all of them? Last time you changed fuel filter? Last time cleaned MAF? How old is MAP? Cleaned the throttle bore? Plus, are you saying at one time you got 15 to 19 MPG on this same rig? When did that happen? That would be great mileage and did it drop to current MPG all of a sudden? CEL?

Thank You For Your Service!

 

[OR VietVet]

Thank You For Your Service!

Welcome to the forum....and thanks.

 

[Joseph Garcia]

Welcome to the Forum from NH.

Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.

I hope that you will become a participating member in the Forum's discussions.

You are already receiving sage advice from the knowledgeable folks on this Forum.

 

[RAMurphy]

Welcome to the forum.