1998 Chevrolet Venture Q&A

1998 Chevrolet Venture Question: why don't the cooling fans come on?

the temperature gauge looks like its getting hot, but the fans dont come on unless you turn on the air conditioner. i have changed fan relays, thermostat, and coolant temperature sensor. now what? -
Answer 1
POSSIBLE COOLING SYSTEM BLOCKAGE IN RADIATOR CAUSING SENSOR NOT TO READ CORRECTLY TEMP OF ENG OR POSS COMPUTER ISSUE. SEEK A DIAG B4 YOU BLOW A HEADGASKET -
Comment 1
i wondered about the computer. i had the radiator and stuff flushed out about 3 months ago. -
Comment 2
Globalhelper is correct. DO NOT DRIVE THIS VEHICLE ANYMORE! Otherwise you will be putting an engine in it. -
Comment 3
flushing will not unplugg cooling tubes -
Comment 4
how can i check to see if the cooling tubes are clogged? -
Comment 5
pull radiator out and have it ck'd by a rad shop tech. he will pull the side tanks and insp 4 you or you can block lower outlet with your hand and fill rad to upper level, remove your hand and the water should rush out in a large stream approx 1 ft long and empty rad in like 3 sec's -
Comment 6
ok i will try that. someone also told me that they can wiggle the pulley on my water pump a little bit. then they said that usually that means it may not be producing as much water flow as it should. is this true? -
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