Location of orifice tube on a 1998 chevy 1500 silverado

SOURCE: thermostat location 2001 chevy silverado 1500

The thermostat is in the hose on the passener side of the waterpump.It is in the part that has the three 10mm bolts.Please rate my answer, Thank you.

SOURCE: where is the fuel pump shutoff switch located on a 1996 chevy silverado 1500 located

Should be on the passenger side kickplate below the glovebox and to the right. You may have to remove the plastic panel to access it or look for a small hole in it and feel around for the button

SOURCE: O.B.D. FUSE 2003 CHEVY 1500

Underhood fuse box (behind battery). may be labeled cigarette lighter or "aux pwr".

SOURCE: 2000 Chevy Silverado 1500 The heater does not

Had the same thing happen to my truck, the blen door actuator is under the console on passenger side, but the heater core is going to be clogged if you dont have any heat coming through, but a/c works..

SOURCE: where is my cabin air filter located on my 2008

You should get instructions on where to put the air filter when you purchase new ones.  I think that it is under the dash on the passenger side.  There should be a cover underneath the glove box with screws holding it in place.  This thing takes two air filters so Chevy can milk more money out of you.