P0446 2004 Tahoe
Took back to AutoZone today and there was only one code that came up.
P0446 EVAP. So what's wrong with the EVAP? Last time I was there, there were two codes and the guy told me it was the EGR
Numbers on the Emissions sticker.
5.3 SFI/H02S/TWC
4GMXT05.3175
4GMXE0133915...
You might not have one. I'm having the same problem and looking for the EGR Valve. Went today and bought a Haynes Repair Manual. The pictures shows that it's next to the Oil Fill spout. My Tahoe does not have the EGR valve there. There is a plug in the side of the head and 4 bolt holes where the...
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