THE AMBIENT TEMP HAS BEEN IN THE 90'S WITH A CENTER VENT OUTLET RIGHT AT 50 ON RECIRC WITH THE WINDOWS UP. tHE HIGH SIDE WILL CLIMB TO 275 AT WHICH TIME THE FAN KICKS UP TO HIGH SPEED AND BRINGS IT DOWN TO ABOUT 185. THE LOW SIDE COMES UP TO 32 AND DOWN TO 25. CONDENSOR TEMPS RUN 120 OR SO.WE HAVE C...

WITH THE SHOP FAN NOT BLOWING THE PRESSURES SPIKE TO 275 ON THE HIGH SIDE. THE COOLING FAN OPERATES AT LOW SPEED NORMALLY, BUT AS SOON AS THE PRESSURE HITS 275 IT KICKS UP TO HIGH SPEED. I SEEM TO HAVE GOOD PRESSURE AND OPERATION AS LONG AS THE SHOP FAN IS USED. I HAVE NOTICED A HIGH COMPRESSOR REPL...

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I HAVE A 2005 MINI COOPER S WITH A/C NOT COOLING. REPLACED COMPRESSOR, FOR BAD COIL. ALSO REPLACED CONDENSOR, AND DRIER. PRESSURE CYCLING HIGH AND TURNING ON FAN, HIGH SIDE GOES TO 275 WHEN FAN COMES ON. WITH AIR BLOWING ACROSS CONDENSOR WITH SHOP FAN PRESSURES ARE GOOD. CAR NOT OVER HEATING, INSIDE...

YOUR WELCOME LET ME KNOW WHAT HAPPENS

I WOULD TRY A TUNE UP

YA I AM NOT SURE IF I HAD IT HERE MAYBE I CAN HELP.

TRY TO PRESSOR THE ACC. IF NOT YOU MIGHT HAVE TO REPLACE IT AGAIN

DID YOU TRY REPLACEING THE POP OFF. AND DONT RECOM. RAISING THE PRESSOR TO 450 IS NOT A GOOD THING

HOW DID YOU CHECK THE ACC.

I WOULD CHECK THE GENERAL MAINT. HISTORY TO SEE ABOUT THE OILING SYSTEM. LOW OIL PRESSURE WILL CAUSE THE TENSIONER TO BE WEAK AND EVEN A NEW ONE WILL QUICKLY FAIL DUE TO SLUDGE GETTING IN IT. DOES IT HAVE CAM PHASERS? THEY WILL ALSO STICK WITH POOR OILING. CHECK THE ACTUATOR TO SEE IF IT IS PLUGGED ...

WHAT SIZE OF MOTOR?

THE EGR HAS INDIVDUAL TUBES IN INTAKE FOR EACH CYLINDER. ALL BUT ONE OR TWO TUBES GET CARBONED UP, EGR STICKS OPEN CAUSING MISSIS ON THE CYLINDERS THAT THE TUBES ARNT CLOGGED.