h22a overheating

[10k]

ok i notice that my cooling fan dont kick in when it reaches normal temperture..i check my fuse and its good i checked the relay its good too but i notice that theres four pins on where the relay sits and there a constant power,constant ground and a gound with the key...now the other pin is most likely the signal but i dont think there's any signal going through so if yall had this problem before it would help cause i was think.. since i did the auto to manaul swap that,that could be a reason..?? cause the two left over plugs for the tcu...but i have a manaul p13 ecu..do i have to do some other wiring that i should know of??

THANKS...

[drummersteve7]

do you get any CEL codes.

the sensor on the thermostat housing is where the fan gets its sending information from.

when it heats certain temp this sensor sends signal to turn the fan on.

[10k]

no i dont have no cel on i already swaped the sensors around from the prelude from the accord and still nothing..

[drummersteve7]

you can try hooking up 12v to your fan wire, to see if it turns on.
if it does not turn on then you need a new fan.

[evil_demon_01]

Is it actually over heating, or just not coming on when it gets to operating temp?

As above, the sensor on the thermostat is the one that turns the fans on and off.

[10k]

yea i checked my fan and its turns on....and yea it overheats if i leave sitting for awhile but when i start rolling it cools down...

[accordvince]

Hey,

had the same problem, and it was the sensor the others are talking about, had a wiring issue and was an easy fix. The fans in CB7s are generally pretty reliable so id definitely check the sensor and in particular the wiring. Pretty easy to check if the fan is working or not, just give it some 12v power. Basically just backing up what the others said, I would definitely take their advice

good luck

[Johnz826]

yea i checked my fan and its turns on....and yea it overheats if i leave sitting for awhile but when i start rolling it cools down...

Check ur coolant levels, top off the radiator, run with the cap off so it burps the rad. then fill ur resevoir up half way.
Have u changed the thermostat lately?

[10k]

na i havent changed the thermostat and ima try to do that what you said see what happens cus i know for a fact that all my sensors were working before i did the swap cus im still using the same ones..

[evil_demon_01]

Have you checked for power and earth at the fan plugs?

[10k]

yea theirs power and ground on both..
im really thinking if its something with what i did on the auto to manual swap like those to extra plugs for the tcu

[evil_demon_01]

yea theirs power and ground on both..
im really thinking if its something with what i did on the auto to manual swap like those to extra plugs for the tcu

If there is power and earth at the fan plugs and the fans wont run, then the fan is faulty.

[10k]

ok let me get this more clearly my fan works good i tested it with a snap on tester..and it works perfect my relay is good meaning new..my front water neck sensor swap it and the rear one too and still the same thing...lol im really just thinking about taking out the motor again and recheck everything...

[evil_demon_01]

As I said:

Have you checked for power and earth at the fan plugs?

If there is power and earth at the fan plugs and the fans won't run, then the fan is faulty.

You answered -

yea theirs power and ground on both

my fan works good i tested it with a snap on tester

Either you have no idea what you are talking about, or the fan IS working and your just saying it isn't.

Can you explain in detail what you have done / replaced / checked so far?

[10k]

yea i replaced it already all my sensors my relay..and still nothing i even swap sensors from a cb that works and still nothing..