NovaKnowledgeNow

Back Story:

My 1997 Honda Accord LX 2.2L Automatic had 200,000 Miles on it was due for it's BIG tune up. Using tutorials from here I replaced the timing belt and water pump(+hoses & belts).

Unfortunately, something fell into the spark plug cylinder, and I had to pull the head to get it out(if you have young 10 year old nephews who want to help, you'll understand.

I replaced the gaskets, torqued everything correctly, and moved on to replacing the radiator, which had a small leak and needed to be replaced as well.

I hooked everything up, turned it on, looked to be running fine.

The radiator got quite hot, I could steam coming from it, so I shut it down.
I did an engine block test, checked the new oil, sparkplugs, checked the compression of the radiator, all fine, so the headgasket, Valve cover gasket, and radiator are all working just fine.

I turned the AC on and the engine on. Only the Coolant fan ran.
I checked the Radiator fan fuse(all under the hood), it was blown. Replaced. Repeated. Blew again.
I used alligator clips to connect the fan straight to the battery, it ran just fine.
I plugged it into the coolant fan pigtail connector, with the proper fuse, it ran just fine over there.
Back to the Radiator fan side, I replaced the fuse under the hood again. Unplugged the fan, turned on the AC, no problem.
Plugged the fan back in, put a paperclip in to jump the Radiator Fan switch(on the thermostat housing), turned it back on, and it still didn't turn on.

Now based on all the work I did(headgasket, radiator, timing belt, water pump, etc), I've always had this thought in the back of my head, that maybe I forgot to plug something back in, or something got broken in the process, as I believe both fans worked fine before I started.

Any ideas from you guys where I should go next, maybe something I have overlooked, Maybe where I could find the ground so I can double check that?


Incase people are wondering, I used the write ups from Neke1point0, and TouringAccord

https://honda-tech.com/forums/honda-accord-1990-2002-2/how-replace-headgasket-f22b2-2335661/
https://honda-tech.com/forums/honda-accord-1990-2002-2/how-replace-timing-belt-timing-balancer-belt-water-pump-f22b1-1908944/

NovaKnowledgeNow

Any suggestions/tips/ideas?

NovaKnowledgeNow

I tried to jumper the Radiator Fan relay switch. When I did, there was a spark, and the paper clip started glowing red, and got quite warm. The fan did infact work, but I don't think it's supposed to have that much electricity running through it.

Lost Again

I'm going to guess you jumped power from the "non-fused" side. Find the pin that is hot from the fuse, verify by pulling the fuse...no power....then use that pin and re-test.