My first C4 at 63 .. an old hand at vintage iron .. beware I could get danger though .. Amen
any way .. restoring my 84 C4 bit by bits ...
My dilemma :

Im now done with my top ( Cross fired system )
It's the simplen thing that have me Cros fired Hah

the fan is my nemisess

My dilemma :
fan will not work automatically .. going Loco here !
things Ive done
10) new ac/ fan relay
20) replaced head fan sending unit .. the one between between 6 and 8 plug ( on passenger side Head )

No auto Fan and definitely no fan at any temp .. even up to 240 degrees heat range

oh yeah . I direct wired the system for the time being

checked and probed all positive leads and .. confirmed 12 vlt where needed
fan works fine when direct voltage is applied

so the fan works when ever 12 vlt applied

checked continuity ... all good

I think Im gonna die ... Hmm ?

have a Hanes manual .. what a travesty to the automotive world

what have I missed ?

Lawrence from So So Cal

 

Not sure but did you check the coolant relay? maybe I'm off track but I thought that relay had something to do with the fan as well.