I GOT A 1998 SILVERADO 4X4 ENGINE LIGHT ON CODE P0446

The links lead me to believe there are interchangeable. In fact this page confirms the compatible models

https://shiftritetransmissions.com/shop/4l60e_98-05_4x4/

1998-1999 Chevrolet Silverado K1500 4.3L 4X4
1998-1999 Chevrolet Silverado K1500 5.0L 4X4
1998-1999 Chevrolet Silverado K1500 5.7L 4X4
1998-1999 GMC Sierra K1500 4.3L 4X4
1998-1999 GMC Sierra K1500 5.0L 4X4
1998-1999 GMC Sierra K1500 5.7L 4X4
1998-2000 Chevrolet Tahoe 1500 5.7L 4X4
1998-2000 GMC Yukon K1500 5.7L 4X4
1998-1999 Chevrolet Suburban K1500 5.7L 4X4
1998-1999 GMC Suburban K1500 5.7L 4X4
1999-2000 Cadillac Escalade 5.7L 4X4
1999-2000 GMC Yukon Denali 5.7L 4X4
1998-2005 GMC Safari 4.3L 4X4
1996-2005 Chevrolet Astro 4.3L 4X4
1996-2005 Chevrolet Blazer 4.3L 4X4
1996-2001 GMC Jimmy 4.3L 4X4
1996-2001 Oldsmobile Bravada 4.3L 4X4
1998-2001 GMC Envoy 4.3L 4X4
1996-2004 Chevrolet S10 4.3L 4X4
1996-2005 GMC Sonoma 4.3L 4X4

https://www.google.com/search?q=1999+K1500+push+button+transmission+4WD

https://www.google.com/search?q=1999+Chevy+Tahoe+push+button+4WD+transmission+4L60E



1999 - 2006

Chevy / GMC - P0446 EVAP System Vent Performance Problem - YouTube

Vent control valve.

Please select the link below to further research this particular issue.http://www.gmtruckclub.com/forum/showthread.php/18964-Quick-fix-for-code-p0446-evap-emissions-vent-circuit-low.
orhttp://www.google.com/#hl=en&sugexp=pfwl&cp=42&gs_id=1v&xhr=t&q=+code+p0446+on+a+2001+cheve+silverado+1500&pq=code+p0446+chevy&pf=p&sclient=psy-ab&source=hp&pbx=1&oq=+code+p0446+on+a+2001+cheve+silverado+1500&aq=f&aqi=&aql=&gs_sm=&gs_upl=&bav=on.2,or.r_gc.r_pw.,cf.osb&fp=37320e696dd5b6f0&biw=1360&bih=603&bs=1

Please let me know if you need further assistance. From what I have read from these sites it is a valve or a sensor.

I see no reason why he can't drive it home.

Research revealed no data availabe for code P0447 - doesn't exist for Hyundai Accent.

There are codes P0446 and P0445, but nothing with P0447.

no fuse

Possible leaks, clogs, malfunctioning VSVs (vacuum switching valves), and faulty Evap charcoal canister. This system is designed to remove harmful vapors in the fuel system and preventing these vapors to enter the atmosphere, regulate fuel pressure, by sending it into the combustion chamber to be burnt.

Diagnostics for P0446:
1. Inspect vacuum hoses and pipes
between EVAP (Purge) VSV and
Charcoal Canister for leaks.
2. Replace Vapor Pressure VSV and
Canister.

Hopefully this helps

how did you fix your p0446 code?

P0420 indicates you have a catalyst efficiency issue; replacement of the Air-Fuel Sensor should take care of that;
The P0441, P0446 and (I assume P0440); you said 446 twice, indicates a faulty or loose fuel cap; it is not sealing properly.
Please feel free to respond to me if you have any further questions.
A FixYa rating from you regarding my assistance would be greatly appreciated.