Gas Milage???

Reply Subscribe

Thread Tools

Search this Thread

Sep 27, 2007 | 07:01 PM

05Silver5.3

Thread Starter

Staging Lane

Joined: Sep 2007

Posts: 74

Likes: 0

Gas Milage???

What would make a truck lose almost 6mpg. The truck is an '05 ecsb Sierra. no mods at all. If anyone has any ideas on what this is and a possible solution Please help!?!?!?!

Sep 27, 2007 | 07:07 PM

Southern Dixie Rebel

Staging Lane

Joined: May 2007

Posts: 74

Likes: 0

From: Georgia

just a thought Air Filter, Spark plug change, and maybe a fuel filter change while at it

Sep 27, 2007 | 07:09 PM

BlackGMC

Resident Retard

iTrader: (31)

Joined: Jan 2006

Posts: 17,216

Likes: 20

From: Fort Worth - TX

I would check your intake connections, make sure they are all tight. How many miles, BTW I don't think there is a fuel filter on an 05.

Sep 27, 2007 | 07:12 PM

05Silver5.3

Thread Starter

Staging Lane

Joined: Sep 2007

Posts: 74

Likes: 0

the truck only has 37,100 miles on it. And no, the 05 s have an internal fuel filter and GMsays it is suppose to be a lifetime filter.

Sep 27, 2007 | 07:14 PM

BlackGMC

Resident Retard

iTrader: (31)

Joined: Jan 2006

Posts: 17,216

Likes: 20

From: Fort Worth - TX

Thats what I thought, mine is an 04 and has the same "lifetime" filter. Maybe try cleaning your MAF with some electronics cleaner, and what type of air filter are you running?

Sep 27, 2007 | 07:17 PM

05Silver5.3

Thread Starter

Staging Lane

Joined: Sep 2007

Posts: 74

Likes: 0

Its my dads truck and I think he is running a knock off of a K&N filter with a stock intake tube.

Sep 27, 2007 | 07:19 PM

circusboy

TECH Fanatic

iTrader: (2)

Joined: Aug 2005

Posts: 1,017

Likes: 1

From: Walker, La.

maybe the cat's are clogged

Gas Milage???

Gas Milage???

Trending Topics