Have a 9000cse (1996 FTP) ACC will readily produce lovely ice cold air, but no warm air whatever I do with controls...
I suspect the internal air temperature sensor is kaput, but obviously am asking you guys because I know you know heaps more than me!
Anyone got any suggestions for:-
1/ What might be wrong (is my hunch likely to be correct)
2/ How to diagnose the fault, ie what simple tests can I do
3/ What parts I should replace.
Many thanks
Al