i have a pontiac grand am 2002 and overnite it went from full to empty i put gas in it and it would show the amount it should have and then back to empty again
well i put gas in it and it showed the amount it should have and then back to
empty but still ran good ... when i got home i figured taking the battery cables
loose for a bit would streinghten it out but after i put them back on .. it will start
and withen moments it shuts back off.. i know it has gas and it will start over
and over but keeps shutting off
Check the security system, they default to active when main power is disconnected. More on that system in the owners manual.
As far as your fuel gauge its most likely a bad sender assembly.
Try "re-learning" the ignition key. By turning the key to the on position and leaving it there for 10 to 20 minutes. Then turn the key to off, then start the car. Varoom! Happy trails.
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