My car overheats when I am idling and the fans do not come on unless I tap on them. What could be the problem?

2000 INFINITI I30
150,000 MILES
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MICKIMCMILLEN
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  • 2 POSTS
My car is a 2000 Infiniti I30 that overheats when I am idling and the fans do not come on unless I tap on them. I just put a front motor mount on the radiator side and then the problem began. Also, is there a way to make the motors run continuously so then the car wouldn't overheat?

Thanks Micki
May 6, 2012 at 4:21 PM
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DJCL
  • ✓Experienced Mechanic
  • 767 POSTS
If you tap them and thay start to run your looking @ either a bad connection or bad fan motor . Un likely 2 fans went bad. Check all your connectors well.
May 6, 2012 at 5:14 PM
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CJ MEDEVAC
  • ✓Experienced Mechanic
  • 11,000 POSTS
TAPPING EITHER "DISTURBS" THE ELECTRIC MOTOR--MAYBE THE BRUSHES ARE BAD......OR......THE TAPPING IS "DISTURBING" THE FAN RELAY, AND YOU'RE MAKING IT "MAKE".......IF THIS IS THE CASE, A NEW RELAY WOULD BE THE CORRECT THING TO REPLACE

THE MEDIC
May 6, 2012 at 5:18 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,246 POSTS
Since you just installed a motor mount, check grounds and check to make sure there is no damage to the wiring.
May 6, 2012 at 5:20 PM
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CADIEMAN
  • ✓Experienced Mechanic
  • 3,544 POSTS
check the fan relays.hot wire the fans and see they work.tapping and it works sounds like a bad fan motor
May 6, 2012 at 5:30 PM
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MICKIMCMILLEN
  • MEMBER
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Thanks to everyone that answered. I will try these things and let you know. Micki
May 6, 2012 at 6:25 PM
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