2003 Buick Rendezvous 6 cyl All Wheel Drive Automatic 83000 miles
hello im stumped 3400 engine overheating frist I replaced the thermistat. No change this is what happens. Start it up heat climbs. Alittle heat from the blower. Engine heat still climbing and max out. No heat at blower. Pressure biuldiing up. Top rad hose is cold. Bleed out the air from the bleeders. Top rad hose gets warm. Blower heat is warm. Temp gauge is good. Runs fine until shut it off and cools. Then starts all over again. I did a pressure test at 17#for 2 hrs it went down 4# no antifreeze in the oil no oil in the antifreeze that I can tell.I flushed the rad heater core and block I dont under stand how air keep getting in the system. Thank you.
Sunday, December 23rd, 2007 AT 1:40 PM