2013 Chevrolet Sonic
Mileage
44,359
Service Date
3/26/2018
Services Performed
- FOUND 2 POWERS AT AC RELAY AND NO COMPUTER GROUND. GROUND RELAY ON COMPUTER SIDE AND RELAY JUMPS AND COMPRESSOR WORKS. COMMAND COMPRESSOR ON WITH SCAN TOOL AND SYSTEM WORKS. ECM SHOWS WE ARE TRYING TO TURN AC ON WITH DASH SWITCH. NO CODES IN ECM OR HVAC MODULE. COMPUTER SHOWS 75PSI ON HIGH SIDE SENSOR NOW. RECOMMEND NEW ECM. INSTALLED NEW ECM AND HVAC CONTROLLER AND STILL NO AC. FOUND WIRES CHEWED ON AMBIENT AIR TEMP SENSOR, COULD NOT MONITOR DATA OR PULL ANY CODES FOR THIS. INSTALLED NEW SENSOR AND WIRING FROM TOP OF RADIATOR TO SENSOR.
- P00B4- RADIATOR COOLANT TEMP SENSOR CIRCUIT. FOUND SENSOR AT -40 DEGREES. FOUND WIRES CHEWED ON SENSOR, INSTALLED NEW PIG TAIL AND SENSOR READS FINE.
- INSTALL RADIATOR COOLANT TEMP SENSOR HANESS
- ROAD TEST BEFORE AND AFTER, ADVISE AND NOTE ON ANY WARNING LIGHTS ON OR NOISES, ADVISE AND NOTE ON OIL LEAK"S" CHANGE ENGINE OIL AND OIL FILTER, CHECK AIR FILTER AND ADVISE, CHECK AND TOP OFF ALL FLUID LEVELS. CHECK ALL HOSES AND BELTS AND ADVISE, CHECK LIGHTS AND ADVISE, CHECK TIRE AIR PRESSURE AND SET TO MANUFACTURE SPECS, SAFETY CHECK UNDER CAR. ADVISE ON FURTHER REPAIRS AS SEEN. RESET OIL CHANGE LIGHT. CHECK FOR ALL OIL LEAKS, AND ADVISE.
- ROAD TEST CHECK AC CONTROLS FOR PROPER FUNCTION. AND AC CLUTCH ACTION. EVACUATE AND RECHARGE AC SYSTEM. HOLD ON VACUUM FOR 30 MINUTES TO CHECK. CHECK FOR LEAKS. FOUND AC COMPRESSOR NOT CYCLING. FOUND 5V REFERENCE PLUG OPENED UP ON CONNECTOR AND COMPUTER SHOWING 0PSI IN SYSTEM. SYSTEM IS FULL. JUMPED 5V REFERENCE AND SIGNAL WIRE COMPUTER SHOWS 499PSI. RECOMMEND NEW SENSOR AND CONNECTOR.
- INSTALL PRESSURE SENSOR AND HARNESS
- TIRES WERE AT 28PSI SHOULD BE 38PSI
- REPLACE BATTERY IN KEY FOB
STEPHEN K. gave our service a 5 star review on 3/27/2018
