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2003
90,000 Miles
Check engine light seems to be related to the gas cap. I clean the gasket on the gas cap and assured tightness and problem went away. Comes back when the wife refills the gas.
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2003
120,000 Miles
The "Service Engine Soon" lights ON for a day or weeks, then OFF for a day or two. Replaced spark plugs / wiring, flushed radiator, replaced thermostat sensor and temperature sensor. Problem still exist.
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2003
0 Miles
My wife has the same problem on hers, 120,656 miles. I took a pocket knife and carefully removed the rubber gasket inside the cap, wiped the gasket all over with a clean rag, cleaned the inside of the cap with Q-tips, and installed the gasket bottom side up because I noticed there was a groove in the side that made contact with the filler pipe. Next time we drive it should at least have a better seal - and the light should go out.
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2003
147,000 Miles
My gas cap won't seal
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2003
288,369 Miles
Brake light stays on and warning bell continues to chime. Brake is off and car drives normally.
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2003
130,000 Miles
I also have light for gas cap leak.
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2003
70,000 Miles
I've replace the gas cap, and have issues filling the tank without the pump stopping consistently. Nothings worked yet.
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2003
95,000 Miles
My service engine light will come on when the gas cap is not closed correctly. My car will not start because of an ignition problem and my car will not accelerate at times. Ready to trade it in!! :(
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2003
110,000 Miles
We had this problem with gas cap starting at about 80.000 miles.
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2003
121,000 Miles
SES light came on. Abbout 50 miles later, gas cap light came on tightened cap both went off 100 miles later, same thing, but tightening cap doesn't help.
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2003
0 Miles
gas cap indicator lite on and also check engine light on
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2003
96,000 Miles
Replaced gas cap and always over tighten. Seems to work most of the time
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2003
58,000 Miles
I had the service engine soon diagnosed by Autozone and they said to replace the gas cap and add fuel injector cleaner. So far it worked.
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2003
51,000 Miles
New gas cap was installed.
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2003
0 Miles
I've since have purchased 4 gas caps in the past 4 yrs...crazy huh! I just continue to replace the gas caps stillAlso, my oil continually leaks onto my garage floor..just can't stop this leak, it's been serviced soo many times with same outcome....leak
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2003
82,673 Miles
The first time we had this problem, the dealership fixed it by setting a new cap and coding it to whatever in the car. After a month the problem has occurred again. What do I need to do now?
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2003
153,000 Miles
in November of 2014 was fixed I have no idea I know that had to put something on or in gas line for the light to go out
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2003
144,000 Miles
Consistent Check Engine Light...tried several gas caps...oh well...
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2003
0 Miles
I've replaced the gas cap at least 3 times in 78000 miles.Never again a GM car!
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2003
79,000 Miles
Check engine light was on for about a year. I had Auto Zone run their diagnostic and bought a new gas cap and had the O2 sensor replaced. This was good until the next time I filled up the gas tank. The check engine light came right back on.