I took my 2004 suburban for inspection and it failed because the catalys and evap monitors were not ready.... the service engine
light came on two months before that for a couple of days and then went off by itself.... So I took the suburban to the dealer and they did a drive cycle and they said it was good and both monitors were ready.....I drove straight to the inspection place and it failed again for the same thing.....I drove back to the dealer and they checked the sensor and they were both not ready again
JA: Do you have the trouble code? Do you have a code reader or scan tool?
Customer: there are no codes
JA: I'll pass this info along to the Chevy Mechanic so that he can get you a quick fix. What is the model of your '04 Chevy?
Customer: 04 chevy suburban
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: yes I want to fix my self
JA: Anything else you think the mechanic should know?
Customer: the ECM was reflashed also and the monitors keeps resetting..the dealer has done the drive cycle twice and both times the monitors were ready but reset after I left the dealer
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Chevy Mechanic about your situation and then connect you two.