I HAVE A 1986 740 TURBO AND WAS DRIVING DOWN THE ROAD AND LOST POWER. WHEN I STEP ON THE GAS, I LOSE POWER AND IT SEEMS TO BOG DOWN. I CAN BACK OFF THE PEDAL AND GRADUALLY BUILD UP SPEED BUT WHEN I COME TO A HILL OR OVER THROTTLE IT DROPS ON IT'S FACE AND IT SOUNDS LIKE I CAN HEAR THE TURBO SPINNING BUT NOT WHISTLING.
I'VE CHECK THE HOSES AS BEST I CAN FOR LEAKS, DON'T HEAR ANY AND THE HOSES LOOK GOOD. HAVE BEEN TOLD THAT THE TURBO IS GOING OUT, BUT NOT GETTING ANY OIL OR THE BLUE BLACK SMOKE THAT HAS BEEN REFERRED TO.
HAVE CALLED AROUND HAVE TRIED TO TAKE CARE OF THE PROBLEMS THAT COME TO ME.
HAD A NEW MUFFLER PUT ON AND HAVE EXHAUST COMING THRU THE EXHAUST PIPE. HAVE CLEANED AND CHECKED THE FILTER. I KNOW AFTER DRIVING FOR ABOUT 8 MILES OR SO, I STOP AND CHECK THE HOSES FOR PRESSURE AND I CAN SQUEEZE THE HOSES TOGOTHER AND IT DOESN'T FILL LIKE THE PRESSURE OF A RADITOR HOSE. DON'T KNOW WHERE THE COMPRESSOR BYPASS VALVE IS OR THE TWO HEX HEAD CAP SCREWS ON THE BYPASS VALVE.
THIS IS MY FIRST TURBO CAR, MY FIRST VOLVO AND I PLEASE WITH IT. NOT LOOKING TOWARDS TRYING TO REPLACE THE TURBO FOR TWO THOUS. DOLLARS IF I CAN HELP IT. I JUST DON'T THINK THAT IS THE TURBO, BUT IT'S NOT WHISTLING LIKE IT USE TO. CAN THE TRANMSISSION CAUSE THIS KIND OF PROBLEM AND CAN I DRIVE IT ABOUT 200 MILES TO TRY AND GET IT TO A SHOP WITH TEARING IT UP W0RST THAN IT IS NOW?