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1998 Honda Accord fans

Tiny
BIGFISH084
  • MEMBER
  • 1998 HONDA ACCORD
Engine Cooling problem
1998 Honda Accord Automatic 135000 miles

neither my condensor fan or cooling fan kick in causing the engine to overheat.A friend has bridged the plug on the fan switch causing the fans to run permanently when the ignition is on. The top hose from the radiator still gets very hot but the bottom hose stays cool.(Is this normal?)All relays and fuses are working. Various people have told me to change the fan switch change the thermostat or even the radiator!Any ideas before I fork out loads of money unnecassarily?
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Wednesday, July 2nd, 2008 AT 4:15 AM

4 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Hi bigfish084,

Brigding the fan switch means the fans and relays are working. Is there any overheating after this?

Are there any coolant losses? With fan working permanently, does the temp increase with high speed driving?

If no to the above, replace the fan switch, make sure rating is correct.

Upper radiator should always be warmer than the lower hose.
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Wednesday, July 2nd, 2008 AT 7:39 AM
Tiny
BIGFISH084
  • MEMBER
  • 2 POSTS
Hi khlow 2008
the car still overheated even with fan switch bridged and both fans going constantly. Top pipe is red hot and the bottom pipe is not just cool but cold even. There are no coolant leaks present and there is plenty of coolant in the radiator.
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Wednesday, July 2nd, 2008 AT 3:44 PM
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Change the thermostat
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Wednesday, July 2nd, 2008 AT 3:54 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Hi bigfish084,

Docfixit is correct but before doing that, test it first. If it is ok, change the water pump.
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Thursday, July 3rd, 2008 AT 6:02 AM

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