chevy eng. code p0449

[duckfarr]

Does anyone know someone to put a smoke machine on the evap. system so I can find the vacuum leak. south of metro. also my tow button on the shift is not working, I don't know if the 2 are connected. any help would be great thanks.

[Macgyver55]

Possibly the evap vent valve soleniod, but I dont think that will affect the tow/haul function.

[Jeremy airjer W]

Year, make, model, engine size?

And yes I do know someone!

Take a look in my signature

[duckfarr]

03 chevy 1500 5.3

[Jeremy airjer W]

Sounds like two different problems to me as well.

To check the vent solenoid find the large hose coming out of the charcoal canister. On the other end will be the vent solenoid. Unplug it. Using jumper wires supply a power and ground to the two pins. If you hear it click see if you can breath through it. With no power the solenoid will be open. with power the solenoid should be closed.

[jwhjr]

For the tow/haul issue, I know that sometimes the wires in the steering column get messed up, especially if you use the tilt a lot on the steering wheel.

[Dozer]

For the tow/haul issue, I know that sometimes the wires in the steering column get messed up, especially if you use the tilt a lot on the steering wheel.

Had the tow/haul issue problem a couple years ago, turned out to be broken wires in the column.

I also have the P0449 code right now. I will have to check out the evap canister on mine too.

[Dozer]

Sorry to hijack your thread Duckfarr.

Had the evap vent solinoid off mine tonite, seems to be closed all the time. There is a odvious "click" when I put power to it but it never opens. That vent solinoid is more expensive than I expected though, $147!

[Dozer]

Ive been doing some digging on the internet and it seems my $147 price might not be correct. It seems the one that is $147 includes the entire line to the evap canister, which I dont need or want. Not sure if the picture is a generic one or not but the one offered without the line doesnt look like the one I took off.

Any thoughts?

[Macgyver55]

They gave you the update kit not just the valve.

The valve alone should have been under 30 bucks

(GM part # 25932571 is the one I believe, but not positive)

[Dozer]

They gave you the update kit not just the valve.

The valve alone should have been under 30 bucks

(GM part # 25932571 is the one I believe, but not positive)

That is the way it seems, seems like this is a pretty common problem but mine made it 11 years and 188,000 miles. I see no reason to spent an extra $110 for the updated one.

[Jeremy airjer W]

All the update kit does is relocate the vent solenoid to a higher location to help reduce the possibility of it getting plugged with off road debris. If you an average driver that never really gets muddy or never drives through a snow bank you should be fine. It's not like GM only has this part fail in the trucks. Its across the board and yet none of the other models have an update kit?

[duckfarr]

just got done replacing the vent solenoid and works just fine, the tow button was a broken wire it is orange with 2 smaller white wires in side it spliced another wire on it and reran the wire where it was not going to get cut or pinched . Took about an hour and half of that was figuring out how to get the column apart "it just snaps apart " no screws .

So thanks for all the help.

[Dozer]

I also put a vent solenoid on mine, took care of the P0449. Used the part # Mac gave. Looks like the same solenoid but the filter and the fitting for the filter are a little differnet. The new filer is round intead for rectangle so I accually had the put the filter and the solenoid above the frame seperately and assemble them there (wouldnt fit through the opening as a unit). Also had to modify the bracket a to get it all to fit. All in all well worth the work to save $170! ($30 for this one VS $200 for the relocated one).

Thanks again for the help!