No Heat

[Buzzman]

Alright problem solved.

There was air in the heater core.

I had flushed the cooling system and tried the heat and it didn't work. Then I took the hose off the heater core itself and ran water through the core, reattached the hose, refilled the cooling system and gave her ago and it worked hooray.

Thanks everyone for the help!!

Modified by slickroger at 2:17 AM 10/4/2009

There now, aren't ya glad ya listened to all your friends on NICO?

[slickroger]

There now, aren't ya glad ya listened to all your friends on NICO?

Nico friends are the only ppl i trust!

[Pwnin O'Brien]

Do I have an in-cabin air filter?If i do I cant find it

No, your vehicle isn't equipped with the in-cabin air filter (looking at your pics). The filers would be stacked on top of each other in the cooling unit, in the area in the red rectangle in the following picture. It's really easy to add the filters using a utility knife, you just cut out the area in the cooling box where they slide into. Here's a copy of the document which outlines the procedure to install the filters in a vehicle which didn't come with the then from the factory...Modifying Cooling Unit to Add In-Cabin Filters

The in-cabin air filters would go in the red rectangle...

[slickroger]

No, your vehicle isn't equipped with the in-cabin air filter (looking at your pics). The filers would be stacked on top of each other in the cooling unit, in the area in the red rectangle in the following picture. It's really easy to add the filters using a utility knife, you just cut out the area in the cooling box where they slide into. Here's a copy of the document which outlines the procedure to install the filters in a vehicle which didn't come with the then from the factory...Modifying Cooling Unit to Add In-Cabin Filters

Have you done this?Is it worth doing?

[Pwnin O'Brien]

Have you done this?Is it worth doing?

Nope, I left mine unmodified. I've read in a few posts that it's extremely simple and it takes no more than five minutes, you can just cut along the seams. Is it worth it? Probably not. The filters are somewhat pricey ($30) and I have no allergies and I really doubt it would be a noticeable difference (smells, etc.) since they aren't HEPA filters or anything comparable. Also, a dirty/clogged filter is a known cause for the fan amplifier failure. The fan amplifier is cooled by the air which passes through the cooling unit, a clogged filter will restrict the air movement and will cause the fan amplifier to overheat, resulting in replacement.

[slickroger]

sweat thanks for your response.

I do have allergies but never have problems in the truck so ill leave it the way it is because I like the fan amp functioning.

Brian (Qxxx4) came by and let me try his HVAC unit in my truck and it appears my intake door is malfunctioning I don't think I will be replacing it because I heard its less fuel efficient to use the recirculation function anyway. I believe the door is on always closed so it only recirculates..

Can someone confirm my thought process?

Once again thanks everyone for your great help

[Pwnin O'Brien]

I can't imagine that there is a difference in fuel economy when using fresh air or recirculate functions on the HVAC system. The only thing I could think of is the drag that may be produced by the wind which is pushed into the windshield cowl when recirculate is on (the air intake door is closed). I guess when it's on fresh air (intake door is open) there is somewhat less drag since the air is pushed into the cabin and then pushed out the rear vents of the vehicle (even tho there is still some pressure in the cabin which prevents the air from free-flowing through the cabin). The drag produced in recirculate would be very negligible and almost non-existent though.

Did you pull your fan out and look to see which position the door was on (to ensure it isn't stuck in-between fresh air and recirculate)? You definitely don't want it to be stuck on recirculate since that will disable the use of the front defrosting vents. Is it the electric motor which has failed? It's probably pretty simple to replace and the part is probably pretty cheap from an auto recycler.

[slickroger]

I did remove the fan and it is closed so its stuck in recirculate right?

The intake door motor is hard to access its up and behind the auto amp, looks really hard to reach.

[JonathanPrem]

Hey

I have some what a similar problem in my R50. My heater doesn't warm up like it use to last year. Should I flush my coolant(i dont think i ever did) or pour water in to the heater core.

Btw how do you flush the coolant? is it a easy job?

[Pwnin O'Brien]

I did remove the fan and it is closed so its stuck in recirculate right?

The intake door motor is hard to access its up and behind the auto amp, looks really hard to reach.

This is a little late I guess but yes, when the door is closed it is in recirculate.