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You lost the fuel cap and replaced it on a 2005 TrailBlazer LS the fuel gauge jumps all over showing full then low fuel. How do you reset the computer?
Wiki User
∙ 16y ago
The fuel cap has no effect on the fuel gauge and there is no "reset" for this. More than likely the problem is with fuel sending unit in the tank. A less likely cause is incorrect levels of additives in fuel, this can cause the gauge to flucuate erratically.
Wiki User
∙ 16y ago
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Your check engine light came on and the code was coolant temperature too low but the gauge was showing between 170 and 180 on 2003 trailblazer?
The gauge should be showing a minimum 195 with engine warmed up. I would start with replacing the thermostat.
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220.
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220 is not excessive
1987 Chevy Celebrity fuel gauge stuck?
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it proply your sending unit in your gas tank drive safeI am having the same promblem with my 2006 Trailblazer. The research I did on it points to the sending unit.
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