Where is the horn fuse for a 2003 Chevy Silverado 1500

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: 2003 Chevy Silverado 1500 Error Codes

P0135 is a bad 02 sensor
P0442 is a evap problem
P0449 is a vent solenoid

i would check the vent solenoid first its a 4ws fuse under the hood in the fuse box make sure you have power to it you should have power at all times the ground comes from the pcm i think if you fix this everything else will work they are all computer controled

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

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

SOURCE: is there a special tool needed to bleed the brakes

Just loosen up the bleeder screw on your caliper after someone pumps it up.

SOURCE: Need manual for changing 2005 Chevy Silverado 1500

So go buy one at autozone for like 15 bucks