[buggzb]

Hello all my fellow mustang fanatics i am slightly new to this site i been a member 4 a while but jus got internet bac on. anywho i have a 1989 stock 2.3 coupe and for some reason the temp gauge after awile of sittin goes past halfway line and my raidiator fan does not come on at ALL unless i turn da heat or cool on. and i just replaced my thermastate to a 192 degree failsafe, and also my waterpump. is thier any1 who can tell me wat i can do or who has had the similar prob who can help?

[Matto211]

Why post two if we don't know the anwser to the first thread then why post it agian. Maybe no one has had the problem and we need you to fix it. Or just maybe we don't care( worst case ) But simply be patient my friend. Best of luck to you on getting it fixed.

[pcfrisch]

Have you ever had the cooling system flushed?
You could also have an air bubble in the system.

[buggzb]

no not recently but will get 1 asap THANX pcfrisch. AND TO U MATTO TY FOR DA COMMENT BUT I ACCIDENTLY POSTED IT TWICE

[SVT1995]

Do you have a electric fan or a belt driven?

[buggzb]

its an eletric fan

[Matto211]

It's cool, I didn't know what you were trying to say? I hope you get it fixed soon!

[ExtrmZ]

there is something wrong either with your coolant temp sensor, in between injector #2 & 3, or the wire that goes to the fan control box. or your control box itself

[buggzb]

ok so how exactly do i get to these areas an wich should i check 1st and kno if its bad?

[NavySVO]

Ok, this has been covered about 6 times in the last year. USE THE SEARCH FEATURE

If your fan is not coming on without turning on the AC (it shouldn't come on with the heat selector) than it is one of 3 things:
1. The black TRW box under the dash next to the steering column
2. The fan switch in the bottom of the lower intake (sort of like the one in the picure)
3. A wiring issue

The ECT does nothing to turn the fan on. It "talks" to the EEC to schedule fuel injector pulse/timing and help with cold start idle.