OHHH my misunderstand. I not think of filler neck which is gas to fill up. I know where is. So how can you explain me from small hose from evap cansidor vent solenoid go to tranny tunnel. I not 100% sure about tranny tunnel. HOw can get hose lengthen to tranny where mount? Like top of bellhousing of tranny? UNLESS if anybody who has done with that. Wonder if I could see the pictures for that. So I can know where locate hose go to tranny. I would be appericated for that!

 

Pics or a copy of the TSB would be helpful...bump for you

 

Here is the GM TSB covering this problem, it has been superceeded 4 times since it was released LOL. The most current revised replacement vent solenoid valve is GM part # 19207763.....


TECHNICAL

Bulletin No.: 02-06-04-037E

Date: April 09, 2009

Subject:
DTC P0446 (Restricted/Blocked EVAP Vent Path) Set, Check Engine Light On (Replace Evaporative Emission (EVAP) Vent Valve Solenoid Assembly and Add/Relocate Filter Box Using Service Kit)

Models:
1999-2007 Chevrolet Silverado (Classic) Models
1999-2007 GMC Sierra (Classic) Models
2007-2009 Chevrolet Silverado Models (Excluding Hybrid)
2007-2009 GMC Sierra Models (Excluding Hybrid)

Supercede:
This bulletin is being revised to add 2009 to the models. Please discard Corporate Bulletin Number 02-06-04-037D (Section 06 - Engine/Propulsion System).

Condition

Some customers whose vehicles are operated in dusty type environments, such as farming or mining off-road type applications, may comment about the illumination of the check engine light, with a DTC of P0446 (Restricted/Blocked EVAP Vent Path) being set.

Cause

Dirt and dust intrusion into the EVAP canister vent hose assembly, resulting in restricted air flow, may cause this condition.

Correction (1999-2007 Classic/Old Style Models)

After following the published SI diagnostics for P0446 and determining that the EVAP canister vent valve is the cause of the MIL light, replace the existing EVAP canister vent valve assembly with a new assembly. This new assembly is a sealed unit that is designed to be vented through a remote filter box. To ensure correct installation, follow the procedures below.

1999-2003 Model Year (Use Service Kit P/N 19152345)

1. Raise the vehicle. Suitably support the vehicle.

2. Disconnect the EVAP canister vent valve electrical connector, if equipped.

3. Disengage the two vent valve pipe clips securing the pipe to the underbody. Remove the clips from the underbody and discard.

4. Disconnect the vent valve pipe at the EVAP canister.

5. Remove and retain the EVAP canister vent valve bracket mounting bolt.

6. Remove the complete EVAP canister vent valve assembly with bracket attached and discard.

Important
The new canister vent valve will be installed in a new location, outside of the frame.

7. Position and secure the new valve assembly to the frame bracket on the outside of the frame using the existing hole and mounting bolt.

Tighten
Tighten the bracket mounting bolt to 12 Nm (106 lb in).

8. Connect the vent valve pipe to the EVAP canister.

9. Install the two vent valve pipe clips into the existing underbody holes.

10. Connect the EVAP canister vent valve electrical connector, if equipped.

11. Attach bulk 5/8" heater hose to the vent valve port and secure using a clamp. Run a length as needed along the frame rail routing to the area above the transmission.

12. Cut the hose to determined length and install the supplied filter box. Secure using a clamp.

13. Remove the transmission support and lower the transmission assembly as necessary to allow for access to the new filter box location.

14. Secure the filter box to the transmission vent hose just forward of the hose tee-section using a tie strap. DO NOT pinch or restrict the transmission vent hose. The filter box opening should be pointing downward.

15. Raise the transmission and reinstall the transmission support.

16. Tie strap the hose as needed along the frame rail in order to keep the hose away from pinch-points and heat sources.

17. Lower the vehicle.


2004-2007 Model Year (Use Service Kit P/N 19152349)

1. Raise the vehicle. Suitably support the vehicle.

2. Disconnect the EVAP canister vent valve electrical connector.

3. Disconnect the canister pipe from the vent valve.

4. Push in the retainer and remove the existing canister vent valve from the fuel tank clip or mounting bracket. Discard the old valve.

5. Cut back the existing canister pipe approximately 51 mm (2 in) to remove the quick connect end.

6. Install the new canister vent valve to the fuel tank clip or mounting bracket.

7. Cut bulk 5/8" heater hose to a length of approximately 76 mm (3 in). Install the hose between the vent valve and the canister pipe and secure using clamps.

8. Attach bulk 5/8" heater hose to the vent valve port and secure using a clamp. Run a length as needed along the frame rail routing to the area above the transmission.

9. Cut the hose to determined length and install the supplied filter box. Secure using a clamp.

10. Remove the transmission support and lower the transmission assembly as necessary to allow for access to the new filter box location.

11. Secure the filter box to the transmission vent hose just forward of the hose tee-section using a tie strap. DO NOT pinch or restrict the transmission vent hose. The filter box opening should be pointing downward.

12. Raise the transmission and reinstall the transmission support.

13. Connect the EVAP canister vent valve electrical connector.

14. Tie strap the hose as needed along the frame rail in order to keep the hose away from pinch-points and heat sources.

15. Lower the vehicle.


Correction (2007-2009 New Style Models)

After following the published SI diagnostics for P0446 and determining that the EVAP canister vent valve is the cause of the MIL light, replace the EVAP canister vent valve assembly and relocate the remote filter box. To ensure correct installation, follow the procedures below.

Use Service Kit P/N 19152349

1. Raise the vehicle. Suitably support the vehicle.

2. Disconnect the EVAP canister vent valve electrical connector.

3. Disconnect the vent valve pipe quick connect from the canister.

4. Either cut the existing valve vent pipe and leave the remaining section of pipe in the vehicle or remove along with the valve.

5. Push in the retainer and remove the existing canister vent valve from the fuel tank clip or mounting bracket.

6. Cut back the existing canister pipe approximately 51 mm (2 in) and retain the pipe for use with new valve.

7. Connect the canister pipe quick connect to the canister.

8. Install the new canister vent valve to the fuel tank clip or mounting bracket.

9. Cut bulk 5/8" heater hose to a length of approximately 76 mm (3 in). Install the hose between the vent valve and the canister pipe and secure using clamps.

10. Attach bulk 5/8" heater hose to the vent valve port and secure using a clamp. Run a length as needed along the frame rail routing to the passenger side area above the transmission.

11. Cut the hose to determined length and install the supplied filter box. Secure using a clamp.

12. Remove the transmission heat shield, if necessary.

13. Remove the transmission support and lower the transmission assembly as necessary to allow for access to the new filter box location.

14. Secure the filter box to the transmission vent hose just forward of the hose tee-section using a tie strap. DO NOT pinch or restrict the transmission vent hose. The filter box opening should be pointing downward.

15. Raise the transmission and reinstall the transmission support.

16. Reinstall the transmission heat shield.

17. Connect the EVAP canister vent valve electrical connector.

18. Tie strap the hose as needed along the frame rail in order to keep the hose away from pinch-points and heat sources.

19. Lower the vehicle.

 

Hey. This morning finally engine light come back. I scann and it say P0455 evap emission system (gross leak/ no flow) I couldn't understand what make work hose to transmission. See if someone who had done and if have picture or make a draw if yall don't mind. So I can see it and try fix myself. So now need buy new evap candisor vent soleniod?

 

you need the new designed vent valve, not the canister..... 4 hose clamps, 5/8 heater hose.

 

The vent hose doesn't get re-routed into the transmission, it gets routed to the transmission tunnel. In other words, it gets moved over the transmission to prevent it from getting filled with dirt and moisture.....

 

I'm trying to understand.I'm try to learn. But where tunnel at? If you could draw one I can see where to hook up?

 

Do I need run 5/8 hose from vent soleniod length to top of transmission but where would be mount? Do I need add canisdor? Tell me a exactly part I need? I called dealership to get a price for evap vent cansidor soleniod cost me $180. I not sure if the part correct one what I need? Tell me what name of part and do you know anywehre I could find a cheap than dealership?

 

Guys. To see if one more chance for yall to check if I am right from what yall told me what to do with 5/8 heater hose and everything.

First of all- From the filler neck with small hose need take off from evap valve and length move to top of transmission but how mount and exactly where? Then what is next? I have see the Gm# 19152349 with kit from dealership. But I saw small filter box which I not have one on mine. WHat to do with filter box?


I check parts online to see if cheaper and able to order it. I want yall check on internet.
ACDelco 214-2082
http://www.amazon.com/ACDelco-214-20.../dp/B000S2SKIY

19152349
http://www.rockauto.com/catalog/catalog.php

Dealership - Gm# 19152349

Can you check three different link is same part kit for my truck?



Let me show you the picture after I draw and you tell me if I am wrong or right. Before I ahead install it.




Let me know anything I need to know. Appericate for your help!

 

bump