1995 Volkswagen Jetta Fan won't turn on... termostat or sen

160,000 MILES • 4 CYL • FWD • MANUAL
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DJSPARKSERICK
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  • 1 POST
i have a problem with my Jettta, recently the a/c and heater radiator (the one behind the dashboard) had a leak, so i shut both hoses (connected them together) that connect to the radiator with a connector (which lets water flow between the 2 hoses).
but i ran into a problem, the fans wont start unless my A/C is on, and sometimes it still heats up (surprisingly it only heats up on stop lights, but when the car is running the temp. goes down)
Apr 28, 2010 at 10:12 AM
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BLUELIGHTNIN6
  • ✓Experienced Mechanic
  • 16,542 POSTS
check for faulty engine coolant temp. sensor (or make sure you didn't bypass it by accident)
Apr 28, 2010 at 10:15 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Could be the coolant temperature sensor or the engine temperature gauge switch, fan relay and computer
Apr 28, 2010 at 10:16 AM
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