Question about Chevrolet Tahoe

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I have a 2008 Chevy Tahoe 4x4 with Flex fuel. When I first bought it got 16-18 miles to gallon. Now I get 12.8 I've had the oil changed and replaced the filter, checked the tire pressure. Can you give me a few more suggestions?

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Everthing can redusce fuel millage, May try the spark plugs , plug wires, Sorry cant be more help. but good luck to you.

Posted on Mar 27, 2011

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Posted on Jan 02, 2017

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I have a 2004 flex fuel tahoe 5.3. P171 and p174. Codes on. Have replaced fuel pump , pressure reg., plugs and fuel filter. Hard to start but runs fine for awhile then starts acting up.


2002 Chevy Tahoe + P0171/P0174 - Chevrolet Forum - Chevy ...

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2 Answers

Fuel tank capacity and oil capacity for oil change


Your gas tank should hold about 13.1 gal.s I believe and your oil for a oil change including filter is 4 quarts only....don't overfill! I own one so I know.

Oct 16, 2012 | 2004 Chevrolet Cavalier

1 Answer

I was given a 1994 s10 Chevy Tahoe vortex blazer


I was given a 1994 s10 Chevy Tahoe vortex blazer??????? It's either a S-10 pick-up or it's a Tahoe or a Blazer not all three . So which is it ?

Mar 11, 2017 | 1994 Chevrolet S-10 Blazer

2 Answers

How often do I need to change my 2004 Tahoe fuel filter?


If your Tahoe is the 5.3 Non flex fuel then its in the gas tank then you dont replace it.
It's supposed to last the life of the
Tahoe.
If your Tahoe is the 5.3 flex then the fuel filter is located on the under carriage of the frame and should be replaced every 15,000 miles.

Mar 08, 2011 | 2004 Chevrolet Tahoe

1 Answer

2003 Tahoe, 5.3 liter vortec flex fuel. Engine replaced at 60k miles due to low end knock (typical late model GM). Scanner shows mutiple misfires on all 8 cylinders and erratic timing. Rough idle....


this is a comon problem on chevy 00-06 models a computer ground ,it seems ok at sight but inside it's just holding a few wires ,get under the car on the driver side passenger there you should find a two ground wire goin to the block a big, and a small ,the small one gets coroded try to fix it and let me know how it goes ok.

Nov 09, 2009 | 2003 Chevrolet Tahoe

1 Answer

4x4 transfer case oil change for 2007 Chevy Tahoe


Go buy the chevrolet shop manual for the truck. Its worth every penny in the long run and will save you thousands by not going to the dealer for everything, because they consult the shop manual. make sure your tranny doesnt share fluid with your transfer case, you could over fill or underfill it easily.

Jun 03, 2009 | 2007 Chevrolet Tahoe

3 Answers

1998 Chevy tahoe Hard to start when cold


replace your MAP sensor(manifold absolute pressure) the map sensor is the computer for your fuel pressure regulator telling how much pressure. Unless your tahoe runs like **** going up hill than it inevitably your fuel pump

Feb 17, 2009 | 1999 Chevrolet C/K 2500

3 Answers

96 chevy tahoe, transfer case making noise such as chain slipping


Fluid Should Be Checked Just The Same As Engine Oil. Should Be Changed At Least Once A Year For Proper Service & Reliability. Should be Driven 10 Miles A Month In 4 Hi To Keep Lubricated. I Drive A 1975 Chevy K10 PKP FullTime 4X4 NP203 & A 1980 GMC Jimmy Lock-Outs 4X4 NP205, And I Drive Them Once A Month At 55 MPH For 10 Miles (On Pavement). Keeps The System Lubed Up & Moving. Have Done This For The Last 15 Years I Have Owned Them. KEEP THEM SERVICED. Low Oil Is A Transfer Case Killer. Also Put The Correct Type Of Fluid In, Each Transfer Case Takes A Different Type Of Fluid, Call Dealer Shop For Correct Fluid Type. Some Take Dextron III Or 10-40 Engine Oil Depends On Transfer Case.

Dec 11, 2008 | 1996 Chevrolet Tahoe

1 Answer

Gas consumption


My Answer:

Poor gas mileage can be a result of many many things.

First of all you need to find out what is the factory normal gas mileage for your model year Jeep SUV. It should have said on your window sticker if you bought it brand new. If you are a 2nd or 3rd owner then a Jeep dealer would have info. Google search will tell you as well, and only takes a couple minutes to find.

I did a quick Google search and for a 2003 Jeep Grand Cherokee with a (4.7L V8 engine) the average mileage is roughly 14 mpg.

Not sure what engine you have as to options, etc?

How you drive will greatly change that number up or down depending on a number of driving and driver variables.

A few being -

Driving habits?

Tire pressures?

Engine tuned up?

Lube & oil/filter changes (every 5,000-7,500 miles? Air filter changes (every 10,000-15,000 miles)? Read your auto manual for exact recommended intervals.

How many people in the SUV on average?

Are you towing anything?

Type gas you are burning - BRAND? (See injectors below)

Area you are driving in (hills and valleys verses flat out,
etc)

Jeeps in general don't have a good track record for great mileage, and rough engine idling is always a clue that your fuel injectors are dirty. Typical on all Jeeps with port fuel injection systems! On Jeeps with dirty fuel injectors your mileage will go way down accordingly. If your not putting at least a 12 oz bottle of say Walmart brand Super Tech Fuel Injector Cleaner (~ $1 each) in your gas tank religiously every logged 1000 miles, or every 2 tank fill ups, then you are just inviting dirty fuel injectors and POOR fuel economy!

My 1993 Ford XPLR with a 4L V-6 engine (and ~ 160,000 flawless driven miles) gets roughly 22 miles per gallon on the highway with cruise control on, and about 17 around town on average. I religiously put a 12 oz bottle of the above injector cleaner in my gas tank every 1000 miles!! Of course I do all my own tune-ups, general repairs, and suspension maintenance (shocks, O2 sensors, trans oil changes, lube & oil/filter changes, code reading and clearing, etc) myself and it shows! I don't trust repair shops except for say Tires and Balancing at SEARS.

Hope that helps ease your mind about gas mileage as it relates to your Jeep there.

Frank


Aug 01, 2008 | 2003 Jeep Grand Cherokee

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