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1999 Hyundai Elantra Overheating

Tiny
SCONVERY23
  • MEMBER
  • 1999 HYUNDAI ELANTRA
  • 125,000 MILES
I have a 99 hyndai elantra and it keeps overheating. I changed the water pump, radiator, thermostat, even took the thermostat out and ran it like that. Any suggestions? Bottom rad hose is still cold also.
Friday, September 27th, 2013 AT 11:44 AM

3 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Can you check coolant flow through the system? What about clogged radiator? Does the radiator fan work?
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Friday, September 27th, 2013 AT 12:00 PM
Tiny
SCONVERY23
  • MEMBER
  • 2 POSTS
Haven't checked the coolant flow. Will do. Same for clogged radiator. Just run water through it? And no the fans do not work. They have power to them but don't turn on.
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Friday, September 27th, 2013 AT 8:16 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
If you do a lot of stop and go driving, you to have a fan that works. I haven't looked at your wiring yet, but, if voltage and ground to the fan are good and no fan operation, suspect a faulty fan.

Do you have a radiator cap, if you remove it, can you see the coolant? If so, with the thermostat removed and everything hooked up. Drain some of the coolant down just till you can see coolant passages. Start the vehicle, flow should be instant. You should be able to see coolant movement.

Here is the fan wiring diagram, top wire is voltage, black wire is ground. Check both.
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Saturday, September 28th, 2013 AT 8:25 AM

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