electronic ignition
Begin by removing the retaining ring at the top of your 1992 Chevy ignition switch. The ignition switch will slide out. Remove the wiring harness from the end of the ignition switch. Reverse the process to install the new ignition switch.
does not have one
The 1990 G20 Chevrolet Van fuel relay switch is located on the front of the fuel tank. The relay switch is next to the fuel pump.
under the dash ,attached to the brake pedal
no
How do you set the timing for an 1989 Chevrolet G20 van - 350 cu. in. with tbi?
Should be 5 with filter change
Usually on the upper end of the brake pedal under dash area
hornrelay location for g20
Check the ignition switch itself, sounds like it may be the problem.
check your ignition switch