Chevy Trailblazer Check Engine Light On Sacramento CA

Hello Austin,

I have a question for you that involves figuring out if our dealer is charging us for a repair that is needed due to their errors while fixing the orignial diagnostic problem. We first took our vehicle in because the engine light came on.

The Chevrolet dealership told us we had a tiny seam that was coming apart on the gas tank. Suppossedly they replaced the gas tank at $1000 cost and did some other regular maintenance (fuel filter replacement, MOC Engine Decarbon Flush service, engine decarb, checked air pressure in tires, MOC Fuel Injection flush service, )

The next day the light came on again and we took it back to the dealership, and they told us the gas cap was not on tight enough. A few days later the engine light came on again, and it took another three days or so for them to figure out that, they needed to replace the "fuel evaporation canister" that they "may have" damaged when replacing the fuel tank?

Here is the question finally - When we went to pick up the car it made a light roaring noise when pressing on the accelerator. We were told that this was the fan clutch, but it had nothing to do with any repairs or maintenance they had performed.

Is there anything they could have done while running the diagnostic tests, making the above repairs or maintenance that would have caused problems with the fan clutch? It just seems oddly coincidental after taking it in for one problem it drives out with a second problem that at first we were told the noise did not exist?? At this point we are even wondering if the fuel tank even needed to be replaced.

The fan clutch problem occured right after they were running diagnostic tests again for the check engine light problem.

Thank you for any advice, or help you can provide.

sincerely,
Amanda
2003 trailblazer, 56,289 miles

Amanda,

Thanks for your email. My gut says you might not have needed a new fuel tank. The check engine light was probably coming on because of a leak in the fuel system, not allowing it to pressurize itself. Not tightening the fuel cap all the way is a common cause for loss of evaporative fuel pressure. I hope the new fuel canister corrects the problem, and was probably the problem all along...just my guess anyway. I don’t want to place poor judgment on the dealership...ok ok , maybe just a little blame should be placed on them. :)

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