Question about 1992 GMC Sonoma

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92 SONOMA I HAVE CHANGED THE WATER PUMP AND THE THEROMSTAT HAS BEEN CHANGED 3 TIMES AND REPLACED THE HOSE FROM THE HEATER CORE TO THE INTAKE AND REPLACED ALL THE SENSORS AND THE OLD TEMP. SENSOR WOULD MOVE A LITTLE BIT AND THE NEW ONE WILL RAISE A LITTLE AT A TIME UNTIL IT SAYS IT IS RUNNING 260 DEGREES AND YOU CAN TAKE THE RADITOR CAP OFF WHEN IT IS RUNNING AND IN A FEW MINUTES IT WILL SHOOT OUT THE WATER OF IT AND YOU CAN SQUEEZE THE HOSE WITH THE CAP ON IT WHEN IT HAS BEEN RUNNING IF ANYONE HAS ANY SUGGESTIONS PLEASE E MAIL ME THANK YOU

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Is this a 4 cylinder or 6 if 6 then you might have the wrong pump on it there are reverse vane pumps also check flow of radiator and flow of air over radiator

Posted on May 28, 2011

  • 4 more comments 
  • Anne Green May 28, 2011

    it has a 4.3 v-6 in it how can you tell if you got the wrong water pump

  • Anne Green May 28, 2011

    how do u ck the flow of the radiator and the flow of the air over the radiator

  • tim fredrickson May 28, 2011

    when engine is cool open radiator (never open when hot or even warm) cap and look to see the fluid is should be churning / on the air flow over radiator, the fan should pull air through the front grill put a one dollar bill on the condenser it looks like the radiator and is in front of radiator put dollar bill on the condensor it should stay there when the engine is warm and hot if not then blow the fins of radiator with water to clean out and try test with dollar bill again if it still doesnt stay there then the fan clutch could be bad /turn the engine off and try to spin the fan if it free wheels then replace the fan clutch

  • Anne Green May 29, 2011

    HE SAID THAT WHEN YOU TAKE THE CAP OFF THE FLIUD DOES NOT DO ANYTHING WILL TRY DOLLAR AND LET YOU KNOW SHORTLY

  • Anne Green May 29, 2011

    THE FLUID IS CHURNING AND I PUT THE DOLLAR BILL ON THE CONDENSOR AND IT STAYED ON IT DO YOU HAVE ANYMORE IDEALS BECAUSE IT HAS BEEN IN 2 SHOPS AND WE HAVE ASK PEOPLE AND THEY DON"T KNOW SO IF YOU KNOW OF ANYTHING ELSE WE WOULD BE GREATFUL AND HE HAD A NEW INTAKE GASKET PUT ON IT BECAUSE THE SHOP SAID THAT IT WAS LEAKING

  • tim fredrickson May 30, 2011

    are you sure the system is full with no air pockets in it

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1992 GMC Sonoma has no heat, replaced thermostat and water pump


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2 Answers

NO HEAT BLOWING COLD AIR


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