2004 Chevrolet Blazer Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2004 Chevrolet Blazer

2004 Chevrolet Blazer Problems

Replace Fuel Filter Every 30,000 to Prevent Fuel Pump Failure

The fuel pump may fail causing the engine to stall and not restart. Our technicians recommend replacing the fuel filter every 30,000 miles to help prevent undue strain on the fuel pump.

Transmission Output Seal May Leak Fluid

The transmission output shaft seal may leak transmission fluid. On 2WD models, this leak can cause the transmission mount to become oil soaked, which will require replacement of the mount along with the leak repair. On 4WD models, if this seal leaks, the fluid will leak into the transfer case, causing it to become overfull.

Intake Manifold Gaskets May Leak Coolant or Engine Oil

The intake manifold gasket may develop and external engine oil or coolant leak. In some cases, an internal coolant leak may occur causing coolant to mix with the engine oil. Running the engine with a coolant/oil mix may result in engine damage. Replacing the intake manifold gasket should correct this issue.

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2004 Chevrolet Blazer Questions

why does check engine light, abs light off and on erratically. (1 answer)

when coming to a stop, brake pedal feels mushy and can hear a grinding noise. can wheel sensors malfunction cause this

Gas gauge don't read right its always saying low fuel. Sending unit or gas cap (1 answer)

I ran out of gas twice. Is my gas cap bad and all my fuel is evaporating. Or is the sending unit bad. Thanks

Gas peddle less than 3/4 down no problem; gas peddle over 3/4 engine bogs down (3 answers)

Addressing this problem this has been done:
1) fuel system clean out
2) MAF sensor replaced
3) fuel pump and filtering replaced
4) cooling system flush with thermostat replaced

Additionally, after engine warm-up complete, runs hot as high as 240+ degrees; ambient temp approx 90+F degrees....

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2004 Chevrolet Blazer Recalls

Air Bag Labels May Be Incorrect

Vehicles may have an air bag warning label with incorrect statements. This is against the Federal Motor Vehicle Safety Standard. Owners will be sent corrected labels and installation instructions. The recall began June 4, 2004. The GM recall number is 04021.

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2004 Chevrolet Blazer Reviews

I purchased my 2004 Blazer two years ago and have had nothing but problems with it, just found out i need to have a new window regulator put in and also all four ball joints need to be replaced. I have had them replace the gas pump as it was getting stuck at 1/4 tank and it still does all the sudden no gas go figure! Have had to replace wheel bearings on one side (that werent even bad it was...

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