I recently just fixed a headgasket, and the fan wont kick over for ****.

I jumped the fan switch plug and it works, which leads me to believe the relay/fuse is good not to mention the fan motor. The thermostat is new and works to my knowledge (lower rad hose gets hot). I swapped out thermostat switches from a spare motor and that didnt work (not sure if the other switch was good to begin with).

Right now im just stumped, and any help or insight would be greatly appreciated.

 

Does it overheat? Have you tried another relay?

 

Doesnt overheat. I havent checked the relays/fuses just because it worked when i jumped it.

The only one I know to look for is the fan motor relay I think it is, and it is behind the passenger headlight. Other than that, I do not know which fuse or other relays to check.

 

Check this out https://honda-tech.com/zerothread?id=1599625 Look at what fuses to check for. Thread is 2 lines up.

 

I take it I check for the coolant fan.

I do not have the sticker on the cover, it is in my glove compartment, and yes i am very lazy.

 

Did you bleed the coolant for air bubblers?

 

Yes all air bubblers are out.

Im going to check the fuses and relays today.

 

if you jumped the thermal switch (on/near the thermostat) and the fan came on then the thermal switch is bad...

 

Anyone know where to get a thermo switch?

i have 2 and I guess they are both bad.

 

its either the thermostat ( use a jumper wire), fuse located in the engine bay. or the relay beside the fuse( normally, you just have to shake the relay, often times its just stucked up)

 

Got it running. I let it idle for god knows how long, turned it off swapped out the 7.5 amp in cab fuse, and made sure all engine fuses/relays were in tight. Then let it idle for another long amount of time and sure enough she kicked over. Monitored it for the next 30 mins let it go on and off about 4-5 more times and made sure everything was good (overflow, rad fluid).

Thanks for the help fellas.