Question about 2003 Chevrolet Chevrolet TrailBlazer

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

Getting really low gas mileage in last week

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

Posted on Oct 27, 2013

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1 Answer

Abslight stays on. How to fix? This is a2007trailblazer?


First you need to have EBCM - electronic brake control module check for DTC'S - diagnostic trouble code's . If the light is on there is a code stored . I think most part stores can do this and for free . After you find out what code is stored , looking up that code in service repair information for diagnostic trouble shooting chart would be next step . There are a few codes too.
DTC C0035 or C0040
DTC C0045 or C0050
DTC C0110
DTC C0131
DTC C0161
DTC C0186
DTC C0196
DTC C0201
DTC C0240
DTC C0241 or P0856
DTC C0244 or P1689
DTC C0245
DTC C0283
DTC C0287
DTC C0290 or C0292
DTC C0455
DTC C0550
DTC C0558

Find the code do the diagnostic's , fix the problem , wiring issue's , a sensor , bad module ,what ever it is . The light will go out then . Here is a sample of code discription .
• DTC C0035 Left Front Wheel Speed Sensor Circuit
• DTC C0040 Right Front Wheel Speed Sensor Circuit

Dec 30, 2016 | 2007 Chevrolet Trailblazer

1 Answer

I hace a 2003 trailblazer with 63,000 miles on it. Problem is I dont drive it very often and when I do the front brakes won't release all the way and get hot. What could be the problem.


Check your brake fluid. Chances are its pushing to much pressure. If you know how - Change your brake fluid. Could also have the wrong pad size.

Oct 09, 2014 | 2003 Chevrolet Trailblazer Ext

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 Trailerblazer getting low gas mileage


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

Jan 02, 2013 | 2003 Chevrolet Chevrolet TrailBlazer

1 Answer

Our 2003 trailblazer has 63,000 miles. we have followed the scheduled maintenance and changed oil every 3000 miles. We have been told that we need to have the brake fluid, coolant system, front and rear...


I would do the coolant, but the others can go a lot longer.
The differential fluids should not be expensive, but the brakes can be expensive and not really warranted in my opinion.

Sep 20, 2010 | 2003 Chevrolet TrailBlazer

1 Answer

Get very low gas mileage (14.4 mpg) on a 2004 Chevrolet trailblazer. Has 140,000 miles currently. Just did a complete tuneup almost a year ago. Any suggestion as to get better gas mileage?


suggest you add lucas fuel injector cleaner that you just add to gas tank.your plug wires may also need replacement, they break down causing loss of spark, consider what brand you replaced them with last year, we're they cheap off brand? remember you get what you pay for when buying knock off imitation parts.suggest you also replace that old air filter too. hope this helps!!

Aug 22, 2010 | 2004 Chevrolet TrailBlazer

1 Answer

MY SERVICE LIGHT IS ON IN MY 2003 CHEVY TRAILBLAZER, ITS BEEN ON SINCE I HAVE HAD THE CAR FOR A YEAR AND A HALF IS IT ONLY SHOWING BECAUSE OF ITS 133,000 MILES?


you need to find someone with a scanner and have them scan your computer. Hint,,,autozone does it for free.. It probably is something emmission related due to the milage or simply just the gas cap causing the code.

Feb 09, 2010 | 2003 Chevrolet TrailBlazer

4 Answers

My 03 trailblazer speedometer is not working when i am stop its showing i am doing 80 mph


Call your local dearship with your vin, and ask if the special policy for the IPC (cluster) appies to your truck. Some of these have a special policy which would mean that you could have it fixed at the dealer for very cheap. Otherwise you will need to have the cluster sent out and it will need to be repaired, it's not very cheap either, and it will need to be programed at the dealership also after it's replaced.

Nov 01, 2009 | 2003 Chevrolet TrailBlazer

2 Answers

2002 Chevy Trailblazer w/101,000 mi has the P0440 OBD II Code. Just replaced the plugs with Iridiums @ 100K, all connections are good and gas cap is seated properly . . . help!!!


i have 2003 trailblazer ltz 153 000 mileage i have code po440 .i changed gas cap and turned off the chech engine light... i made 300 miles and it was good and today morning i drove a mile and light turned on ..... what do i have to fix ...thanks

Mar 22, 2009 | 2003 Chevrolet TrailBlazer

1 Answer

Gas smell from car after driving


busted fill spout as if gets hot pressure builds in tank causing the smell

Jan 05, 2009 | 2002 Chevrolet TrailBlazer

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