Beezvette

I started out for a nice cruise this morning and heard a loud crack, it seemed to have come from the windshield and I figured I picked up my first crack. So I pulled over. There was a spot on the windshield, maybe a falling chestnut, but it came off. Then when I restarted I noticed the check engine light was on, seems like more than a coincidence - I'm sure I would have noticed it if it was on earlier. I checked all the vital signs, tightened the gas cap, inspected the engine compartment, went throught the DIC, no problems, restarted a few time. Any ideas? Thanks! Looks like my first trip to the dealer - 5K+ miles.

mls27

hey im in southern CT, how is it having a vette up here? Do you garage it? drive it in the winter?

sorry to be off topic!

TrackNoob

"no problems"?

So, is the MIL still on?

Do you have loss of power?

Any other symptom - smoke, clacking, other noises that are present, etc?

The more specifics you are able to give, the more useful help you can expect...

Beezvette

OK. Light is still on; no loss of power; no other noises or smoking, no leaking fluids, etc. All seems normal.

TrackNoob

First thing I would check, then, would be the gas cap. Just be sure it's tight. The problem is, if it was loose and set the light, it will take a number of cycles to reset itself, so in any event, next I would also go to an auto parts supplier and get a code reader/resetter that will work for the C6. Should be $50 to 100, and you find out yourself what is going on. Cheap insurance.

Here is your OBDII connector, just plugs right in:



Examples:
http://www.carmd.com/ (~$99.00)
http://www.actron.com/product_category.php?id=249 (~$69.00)
http://www.automotive-diagnostic-too...axr700-ast.htm ($75.00)

cerino2000

A lot of parts stores (i.e. Autozone) witll read the codes for free. Get the code, and post that.

not08crmanymore

This could be anything from a bad 02 sensor to bad gas!It's not flashing so it's emissions related.It may time out in a few days or it may not.If you get black smoke out the back and a little rough idle at anytime,it's a sensor.

Beezvette

Thanks for the advice. I did go to AutoZone. He offered to let me use a reader, but I bought one - Actron CP9125. I had 2 occurances of P0455 which is "EVAP Emissions Control Leak - Large". Could this be the gas cap? At any rate I erased the codes and I'll see if it happens again.

PS I googled the code and sure enough a likely cause is a loose gas cap.

Thanks all for the help - at this point I'll just keep an eye on it. And the diagnostic tool is well worth the $60.

TrackNoob

Yup, most likely the cap -- but now you can not only read, but reset future codes yourself.

cthusker

When did you gas the car last before you saw the "check engine" light?

category4

Do you have Onstar? Can't they tell you what codes are present?

Beezvette

I had 125 miles on the tank at the time the light went on. I cleared the codes and went for a nice ride over the CT river and into eastern CT today, about 100 miles, and no complaints from the check engine light.

Beezvette

I believe they can but I do not have Onstar.