2005 Tahoe emissions light

[DrJ]

I am leaving for South Dakota tommorrow and the wife just got home and the Check Engine light came on. It has 60K miles. The manual says maybe serious damage can occur if I drive it. Any advice I'd really like to go as planned tommorrow and bring it in after my trip. Thanks DrJ.

[Macgyver55]

I would swing in to your local auto parts store and have them read the code for you. Many will do it for free. They can usually tell you if it is serious or you could post it on here and we can take a shot at it.

[jeffreyd]

i would imagine it is an o2 sensor but as noted earlier, i would have it scanned.

[Big Buck Buster]

Is the tank between 3/4 and 1/4? I could be just that she left the gas cap a little too loose. Check to see if the cap is tight. If it was loose, tighten it, and after a few consecutive passed tests of the emissions, the light will go out. Just a thought. Without knowing what the code is, it is difficult to help with this one.

[jwhjr]

If the light is flashing it is a more serious fault, but if it is solid it shouldn't hurt to drive it. I would follow the suggestion of at least getting it scanned at an auto parts store to get an idea of what you're dealing with.

[GotOne]

Can't you "cycle the key deal" to find the engine code? Once you find it- google the code number and it will tell you what's wrong! At least with my 2002 Ram, I can do this procedure.

[deadeye]

Thats a dodge thing.

Just about all the parts stores will do the quick check for your. Like others said a loose gas cap will cause it to go off. There are quite a few codes so it would be a shot in the dark without scanning it.

[GotOne]

Dodge must need it because mine keeps coming on!!!

[BoxMN]

I bet it is just the gas cap. Happens all the time on my 05 trailblazer and 98 k1500. New gas caps even. Sometimes I guess I just don't get it on right, doh!

[DrJ]

Just had it scanned Code PO446 Evap Vent Control.They said no history code so I'm good to go to SD. Does this seem right. Thanks DrJ.

[jeffreyd]

would not be the cap as it is the vent control system. Doing some research seems as if gm has an issue with the vent control selnoid. it gets full of dirt and has to be replaced.

[Jeremy airjer W]

I've run into a couple that have blown the fuse in the grand prix. A new vent solenoid and fuse and there good to go.

Your fine to drive. The Evap emissions system is what contains and burns the fuel vapors created in the fuel tank.