Heat not working...

[Marauder-Mike]

Seems like when I fix one thing another breaks! Now the heat wont come on. The fan is blowing temp is on 85 but it only blows cold. Anyone have any ideas? Thanks BIG-MIKE

[MOTOWN]

could be a number of things, but if its your heater core the intake tube(on the heater core) would be hot, and the outlet tube cold, and foggy windows.

or may need burping

[Marauder-Mike]

Whats burping?

[MOTOWN]

removing the plug from the cross over tube, and burping the air out of the cooling system, is your car running at normal operating temp?

[Marauder-Mike]

removing the plug from the cross over tube, and burping the air out of the cooling system, is your car running at normal operating temp?

Yes its running at normal temp.

[SC Cheesehead]

May be an EATC problem.

Check out these threads.

http://www.mercurymarauder.net/forums/search.php?searchid=3485065

[fastblackmerc]

Is the heat coming out any of the vents?

Floor, defrost, dash vents?

[Marauder-Mike]

Is the heat coming out any of the vents?

Floor, defrost, dash vents?

No heat at all but cold air will come out all the vents.

[GAMike]

Is the heat coming out any of the vents?

Floor, defrost, dash vents?

You thinking its the solenoid Jim? That $38 part (Forget what its called, but it fragged on me over the summer, and got no A/C till I got it fixed).

[Marauder-Mike]

Where is it located? Is it a easy fix? Thanks for all the help fellas.

[GAMike]

Where is it located? Is it a easy fix? Thanks for all the help fellas.

What I am thinking of resides on the passenger side of the firewall under the hood. I will let Jim (FastBlackMerc) expound in more detail as he was a Ford Senior Master Tech at one time in his illustrious career :o

I have never been more than a shoemaker:D
:stupid:

[CBT]

What I am thinking of resides on the passenger side of the firewall under the hood. I will let Jim (FastBlackMerc) expound in more detail as he was a Ford Senior Master Tech at one time in his illustrious career :o

I have never been more than a shoemaker:D
:stupid:

Make me some Pumas? I really miss the ones I had back in '86 :)

[Marauder-Mike]

Make me some Pumas? I really miss the ones I had back in '86 :)

All white air 1's ova here pimp!

[fastblackmerc]

The shop manual lists a a heater control valve. A quick look under the hood and I didn't see it.

I'd let the car run until it's at operating temperature. Turn on the heat.
Both heater hoses should be hot. If they are then the heater control valve is good and there is a problem inside the car with the EATC, vacuum hoses or vacuum motors.

If one heater hose is hot and the other isn't then there is a problem with heater control valve, collapsed heater hose or heater core is plugged.

If the two heater hoses aren't hot then you might need to burp the system.

[SC Cheesehead]

The shop manual lists a a heater control valve. A quick look under the hood and I didn't see it.

I'd let the car run until it's at operating temperature. Turn on the heat.
Both heater hoses should be hot. If they are then the heater control valve is good and there is a problem inside the car with the EATC, vacuum hoses or vacuum motors.

If one heater hose is hot and the other isn't then there is a problem with heater control valve, collapsed heater hose or heater core is plugged.

If the two heater hoses aren't hot then you might need to burp the system.

That's my Jim. :up: The only part you forgot to add was, "that'll be $50, please"... ;)

[Marauder-Mike]

The shop manual lists a a heater control valve. A quick look under the hood and I didn't see it.

I'd let the car run until it's at operating temperature. Turn on the heat.
Both heater hoses should be hot. If they are then the heater control valve is good and there is a problem inside the car with the EATC, vacuum hoses or vacuum motors.

If one heater hose is hot and the other isn't then there is a problem with heater control valve, collapsed heater hose or heater core is plugged.

If the two heater hoses aren't hot then you might need to burp the system.

Ten four ill keep you posted. I should get off work tomorrow with plenty of daylight. Thanks!

[Marauder-Mike]

Ok I checked the heater coil hoses amd both were hot with the heater on. sorry it took so long too post I couldnt log on.

[MercNasty]

O so that explains it, i was wondering how in the hell FBM seem to know everything about these cars.



What I am thinking of resides on the passenger side of the firewall under the hood. I will let Jim (FastBlackMerc) expound in more detail as he was a Ford Senior Master Tech at one time in his illustrious career :o

I have never been more than a shoemaker:D
:stupid:

[fastblackmerc]

Ok I checked the heater coil hoses amd both were hot with the heater on. sorry it took so long too post I couldnt log on.

So it sounds like the heater core is getting hot water. You may have the dreaded blend door issue.