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-   -   Help!!No Heat! (http://www.ramforumz.com/showthread.php?t=37377)

MissRam 12-19-2008 04:49 PM

Help!!No Heat!
 
Hello Fellow Dodge Enthiusiests

I am privlaged to own a 95, Dodge Ramm, 1500, 5.9, 2 wheel drive. It kicks !
I have owned the truck for about 5 years now. I recently installed a freeflow exaust. These are not the problems.

After I have started my truck and it has warmed up....When I turn the heat on, and turn the fan on high, it blows hard but the air is only warm. I have flushed the cooling system and rad ect. and changed the thermostat, but there is no change. I was wondering if there is anything else it would be beside the heater core. The hearter core looks like it is hard to get to, Do I even have to drain my A/C , is this true??

Any help on this issue would be wonderful.
Thanks a bunch
MissRam!!

MissRam 12-20-2008 07:30 PM

I had hopes that maybe, someone might be ableto give some advice! Would anyone know a someone or a better place I could look for an answer? I am a single 23yrld mom, and i dont have abunch of the green stuff to go ask some shop to look at my baby for me. So MerryChristmas and thanks!
Ram...

MADDOG 12-20-2008 07:37 PM

Two things may be causing this, MissRam.

A plugged heater core

A malfunctioning servo or valve that opens/closes the interior heater box flow.

Do you hear a clunk or change in air path direction when you switch from defrost to heat to vent?

MissRam 12-20-2008 07:54 PM

Oh Jeez!!
Hmmm, If it was a plugged heater core, wouldn't it effect the air flow from my vent? I did notice that my air conditioning does work in the summer...
and on the second one, its not a segnificant clunk,but it does,
Would it be hard for me to change or fix myself??
thanks so much for getting Back to me!
Misty ......MissRam!

MADDOG 12-20-2008 08:09 PM

Unless you know how to access the diversion valve under the dash, it's going to be very frustrating to you if you try to fix it yourself.

Honestly, a good shop can do it quicker and make sure it stays fixed. As tough as it might be to spend the money, it's worth it.

One thing you might try...go to Google and see if you can't google up the service manual for your truck. Normally, they are loaded on the internet in .pdf form. Save it to your computer and read up on the HVAC system.

I've got to do the same thing...thanks for the reminder!

Good luck...wish I could be more help. I've owned my 1999 Ram 1500 all of 5 days...

Florida Roadie 12-20-2008 08:34 PM

Misty Maddog is probably correct in two ways .You really don't want to try to remove the diverter valve yourself and it's a nasty job unless you know what your doing.. Also if you do decide to replace it yourself .By all means wear long pants and not a skirt . You'll need to get upside down on your back on the truck floor ...NOT the most lady like position.. Or you may well get more heat than you need .. (Joke) ..Really it's best done by a pro and more thab likely the cause . .

MADDOG 12-20-2008 08:45 PM

LOL Roadie...

I found one source for manuals...but they cost $11.99 to download. I didn't find any others so I went ahead and downloaded it.

The whole diverter valve and control box is one unit under the dash, straddling the center transmission hump.

Here's the instructions:

Removal (Ram Pickup - Front)
1) Disconnect negative battery cable. Drain cooling system.
In engine compartment, remove coolant hoses from heater core tubes.
Remove coolant overflow bottle.
2) Discharge A/C system, using approved refrigerant
recovery/recycling equipment. Disconnect refrigerant lines from
evaporator and plug or cover all openings in A/C system. Remove
instrument panel. See INSTRUMENT PANEL. Remove Powertrain Control
Module (PCM) and position aside. DO NOT disconnect 60-pin connector
from PCM.
3) Remove attaching nuts from studs on engine compartment
side of dash panel. Remove defrost duct. Disconnect electrical
connectors. Remove attaching nuts from studs in passenger compartment
side of dash panel. Remove A/C-heater assembly from vehicle. See
Fig. 5.
4) Place A/C-heater assembly upside-down on work bench.
Remove screw securing floor duct to bottom of A/C-heater assembly and
slide floor duct off of center heat duct adapter. Unsnap center heat
duct adapter from bottom of A/C-heater assembly housing. Remove screw
hidden behind adapter. Remove remaining screws and separate A/C-heater
assembly.

Not a job I'd tackle...honest!

Florida Roadie 12-20-2008 08:51 PM

Quote:

Originally Posted by MADDOG (Post 46183)
LOL Roadie...

I found one source for manuals...but they cost $11.99 to download. I didn't find any others so I went ahead and downloaded it.

The whole diverter valve and control box is one unit under the dash, straddling the center transmission hump.

Here's the instructions:

Removal (Ram Pickup - Front)
1) Disconnect negative battery cable. Drain cooling system.
In engine compartment, remove coolant hoses from heater core tubes.
Remove coolant overflow bottle.
2) Discharge A/C system, using approved refrigerant
recovery/recycling equipment. Disconnect refrigerant lines from
evaporator and plug or cover all openings in A/C system. Remove
instrument panel. See INSTRUMENT PANEL. Remove Powertrain Control
Module (PCM) and position aside. DO NOT disconnect 60-pin connector
from PCM.
3) Remove attaching nuts from studs on engine compartment
side of dash panel. Remove defrost duct. Disconnect electrical
connectors. Remove attaching nuts from studs in passenger compartment
side of dash panel. Remove A/C-heater assembly from vehicle. See
Fig. 5.
4) Place A/C-heater assembly upside-down on work bench.
Remove screw securing floor duct to bottom of A/C-heater assembly and
slide floor duct off of center heat duct adapter. Unsnap center heat
duct adapter from bottom of A/C-heater assembly housing. Remove screw
hidden behind adapter. Remove remaining screws and separate A/C-heater
assembly.

Not a job I'd tackle...honest!

Like Lois Lane said " Sounds like a job for Superman "

MADDOG 12-20-2008 09:01 PM

Quote:

Originally Posted by Florida Roadie (Post 46185)
Like Lois Lane said " Sounds like a job for Superman "

Roger That!

MissRam 12-20-2008 09:06 PM

I didnt know superman wore a skirt!!!;) Well thanks so much for the feed back. I already have a sev. maual. So i will read up on it!
And I wear pants when i work on my truck.... really tight ones! (joke) lol Just being under my hood infront of my house draws enough unwated attention. lol

But really tho i dont know what will be worse, trying to take all this appart in the cold or just living with no heat till it warms up!! I will take it to a shop :( To see how much it will cost, I always get a screwy ansertho cuz they dont ake me seriously. lol they dont think i know what i am talking about cuz i smile prettylol, Anyway.
Merry Christmas!!!!!!
And thanks for the HEAT!!! lol
Misty..... MissRam


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