Question about 2003 Chevrolet Chevrolet TrailBlazer

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2003 Chevy Trailerblazer getting low gas mileage

6 cylinder 63,500 mileage

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Try changing the fuel and air filter as well as spark plugs and wires

Posted on Nov 05, 2013

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Posted on Jan 02, 2017

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Which car is the most fuel-efficient?


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Dec 27, 2017 | Cars & Trucks

2 Answers

Have 2008 kia rondo misfire on cylinder 2 also throwing code for map sensor...car drives and runs not getting best gas mileage and idles/runs rough where should I start thanks for your time


Misfire is caused by spark plugs, coil packs (if you have them), possibly wiring issues.
Don't you have long, long warranty on that car?

Mar 03, 2015 | Kia Cars & Trucks

1 Answer

Getting realy low gas mileage what could be wrong


You should check tire pressure. Make sure there are no brakes holding by jacking up the vehicle and spinning each wheel. If those aren't the problem have a look for engine light( suspect oxygen sensor)

Jan 02, 2013 | 2003 Chevrolet Chevrolet TrailBlazer

1 Answer

2003 Chevy trailblazer ltz 63,000 miles due I need to repair parts


I only suggest using factory tune up parts. Don't forget to set you tire pressure according to the driver's door sticker.

Jan 02, 2013 | 2003 Chevrolet Chevrolet TrailBlazer

1 Answer

2003 Santa Fe V 6 miss firing with New plugs and wires


Got a check engine light? Get the codes read to find out if the misfires are on all cylinders or just 1. Could be ign coil, bad crank or cam sensor, or a valve issue

Jan 27, 2018 | 2003 Hyundai Santa Fe GLS

1 Answer

Just bought ford fiesta finesse 16 valve 03 1.2 am doing roughly 21mpg no leaks or drips this is round town and on motor way have not taken it above 65


Hi


As far as the review says the mileage should not falter since it is new as you said. However

These are the causes of a poor mileage in a car:-


Poorly Inflated Car Tires

Car tires that are improperly inflated create significant road resistance and drag on a moving car. A car engine has to work harder to propel a car forward due to this increased tire/road resistance. This resistance chips away at a car's gas mileage.


Dirty Air Filter

A dirty air filter impedes air flow into a car's engine, a process that disrupts normal engine combustion and makes it less efficient. This causes a reduction in both engine performance and gas mileage.


Bad Spark Plugs

Spark plugs are responsible for igniting a car's air/fuel mixture, an event that causes a mini explosion inside a car's engine cylinders. Bad or dysfunctional spark plugs don't fire, or ignite, properly; thus, they affect engine combustion negatively, which in turn negatively affects gas mileage.


Bad Oxygen Sensors

For a car to be at its most fuel efficient, its oxygen sensors, small and electronically operated, automatically adjust a car's air/fuel mixture and have to be functioning properly. Bad oxygen sensors cause abnormal air/fuel mixture ratios, a condition that results in poor gas mileage and poor vehicle performance.


Leaky Fuel Injectors

A car's fuel injection system is responsible for injecting precise amounts of fuel into a car's engine cylinders, where it is combined with air and ignited. For a car to perform properly, a specific amount of fuel has to be injected by each fuel injector into each engine cylinder. A leaky fuel injector wastes fuel by leaking it outside the engine and reducing the amount of fuel that makes it into the engine. This results in wasted fuel and reduced gas mileage.
It is suggested to start with a code scanner to find out if there are any stored fault codes in your car.

Also check this link for some helpful tips:-


http://www.wikihow.com/Increase-Fuel-Mileage-on-a-Car


Please get back to us if you have further query else please accept the suggestion.
Thank you for contacting fixya.com

Jul 18, 2011 | Ford Fiesta Cars & Trucks

1 Answer

2003 Chevy Trailblazer V-6 4WD. I just got the oil changed. I think I made a mistake and told them to put in 10w-30 instead of the 5w-30 that the vehicle was used to. Since then, my SUV has been sputtering...


CHECK YOUR OIL DIP STICK MAKE SURE YOU HAVE ENOUGH OIL IN THE CRANKCASE.YOUR ENGINE CALL FOR 7 QUARTS OF OIL. IF YOU HAVE THE INLINE 6 CYLINDER.CHECK OIL LEVEL ON DIP STICK.YOU SHOULD BE AT FULL MARK.AND NOT ON THE LOW MARK.IF SO YOU NEED ADD LITTLE MORE OIL TO GET TO THE FULL MARK.YOU CAN USE 10W 30 FOR SPRING AND SUMMER WEATHER. 5W 30 FOR COLD WEATHER COLD CLIMATE.I RUN 10W 30 YEAR ROUND IN ALL MY NEW CHEVY AND OLDSMOBILE VECHICLE HAD NO PROBLEMS.IF OIL LEVEL CORRECT YOU COULD HAVE FUEL PROBLEMS.COULD HAVE STOPPED UP FUEL FILTER, BAD GAS,

Apr 12, 2011 | 2003 Chevrolet TrailBlazer

1 Answer

2003 CHEVEY BLAZER POOR GAS MILAGE Just tuned up , new wires,plugs, pvc vavle,rotor ,cap.air filter ,fuel filter, seems to run great, no check engine light, 74000 miles, new tires, only getting approx 8...


What grade of fuel are you using? There are many conditions that effect gas mileage. The way a vehicle is driven, is it shifting correctly, flooring it to get up to speed from dead stop also known as Jack Rabbit starts, driving with the defroster on when it isn't needed or the setting just above that can be used. Back in the 90's most car manufacturers made a change to their heating.cooling system that caused the AC compressor to kick in when the selector was set to defrost. This puts drag on teh motor and decreases gas mileage. Build up on valves and low compression in the firing cylinders will cause you to lose gas mileage as well. Do a compression check on the motor to make sure you don't have abnormally high compression or low compression on cylinders and use a bottle of gas treatment in your fuel to clean some of the carbon build up from injectors and valves. Also start using the Mid grade fuel. Not the High Octane in your area. In Texas we typically have 3 choices 87, 89 and 93 to choose from. Low grade is enough to run the vehicle but performance is low as well as mileage. I use the 89 octane for better performance and better mileage. The High Octane or 93 isn't really good as it leads to higher carbon build up on the valves. Also check your oil often and make sure your changing it every 4000 miles at the longest. All of this along with making sure you change the Air Filter every 5000 miles will increase your mileage.

Jan 25, 2011 | 2003 Chevrolet Blazer

2 Answers

Poor gas mileage


Cause you're driving a bus. lol. Mileage will vary depending on what fuel you use, how you drive, and where you're located. typically what i've seen on trucks like yours, i'm asuming it's a 6.0 liter, is anywhere from 12-19 mpg. you should see around 15mpg for the most part. if you do a lot of in town driving, expect a lot less. @9-12. if it's less than that, i'd start lokking in to it. try running a K&N air filter and use synthetic engine oil. I've seen noticeable improvements with power and mpg's with that. Also, ensure that your tires are properly inflated as that can make a difference in mileage. use the recomended fuel octane and change fuel filters.

Dec 22, 2010 | 2006 GMC Yukon Denali

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