As the central computer of your vehicle, a faulty PCM can cause a cascade of problems that are often misdiagnosed. No consistent codes, just pure frustration. This pointed away from the sensors and toward the computer processing the data.
Programmed 2003 GMC Safari PCM | 12578127 | Direct Fit
Evaporator A/C fits GMC Safari 1997-2004 (Front) & Chevrolet Astro Van 1997-2004
Main HVAC Blend Door Actuator Dorman For 1996-2005 GMC Safari 1997 1998 1999
RADREPLA CU1786 Radiator for 1996-2005 Chevy Astro Base GMC Safari Van 4.3L V6 Radiador Crossflow Radiators 1997 1998 1999 2000 2001 2002 2003 2004 96 97 98 99 00 01 02 03 04 05
Xoslmon 3 Row Aluminum Radiator For 1996-2005 Chevy Astro 1996-2005 GMC Safari 4.3L V6 GAS Radiators 1997 1998 1999 2000 2001 2002 2003 2004 96 97 98 99 00 01 02 03 04 05
For 1996-2002 GMC Safari 4.3L HVAC Heater Control Valve 1997 1998 1999 2000 2001
