po496 code on 2005 Cadillac SRX

I asked car dealer about it, they said the one at the gas tank or the one in the motor compartment? how can i find the right one thats bad.when i remove the gas cap to fill up the car will not start unless i press on the gas padel.

by in Angleton, TX on February 14, 2012
1 answer
ANSWER by on February 14, 2012
that is why you pay for a diag to determine the failure. you can guess and replace parts but in most cases, guesses are incorrect and expensive. Roy

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