1992 Toyota Corolla Radiator Fan

SAD NAL

MEMBER
1992 TOYOTA COROLLA
4 CYL
FWD
AUTOMATIC
158,000 MILES

My radiator fan kicks in as soon as the car powers on and never stops even if the car has been sitting overnight and engine is cold. What do I need to do? Replace relays? Fan fuses are not blown, could it be the fan itself?

Thursday, August 26th, 2010 AT 8:41 AM

7 Replies

RASMATAZ

MECHANIC
75,992 POSTS

Could be the engine temperature gauge switch or the fan relay

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Thursday, August 26th, 2010 AT 1:28 PM

MMPRINCE4000

MECHANIC
8,549 POSTS

Check that fan switch (located under distributor in coolant distribution block) is connected.

It is white and round, if connected, then as RAZ said, stuck relay or bad fan switch.

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Friday, August 27th, 2010 AT 8:20 AM

DEVO357

MEMBER
5 POSTS

I located the fan switch and it is connected and I also located the relay, when I disconnect the relay the large main fan turns off (the one behind the rad) but the small one stays on same thing if I remove the main 30amp fuse for the fan large off small on. My question is How do I narrow down which it is the relay or the fan switch.

Help! And thank you!

Dean

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Friday, August 27th, 2010 AT 2:13 PM

MMPRINCE4000

MECHANIC
8,549 POSTS

I would replace the fan switch. It is designed to run all the time if disconnected or switch is faulty.

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Saturday, August 28th, 2010 AT 8:17 AM

SAD NAL

MEMBER
2 POSTS

Thx Raz, I replaced the engine temperature gauge switch and the fan switch and both looked cruddy and needed to be replaced (corroded) but problem persist. I am about to pick up a relay and replaced that and we'll see what happens. Anyway, thanks for the advise.