Author Topic: 1995 Dodge Ram Poor Heat  (Read 4180 times)

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Offline silvermopar1

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1995 Dodge Ram Poor Heat
« on: February 15, 2012, 06:46:50 PM »
I just picked up a '95 Dodge 1500 (318 2WD) last week.  The engine warms up ok, but after warming up for 20 or more minutes, the air coming out of the vents is cool at best.  I've got it set for warm air and no matter weather its at the vents or down on the floor, it's cold.  If I switch to recirculate it will come out pretty warm (but only through the vents).  Making for cold feet and dry eyes while driving. 

At first, I figured it was due to the very cold temps (about 10* F) However today warmed up to about 40, and the air coming out the vents and down on the floor, was still only cool, even after several miles and minutes of driving; unless I switched to recirculate.

I'm hoping maybe one of you guys know about a common problem with these heaters or maybe have an idea as to what could be the problem.
1990 Dodge RamCharger 4x4 318 TBI 191,XXX
1985 Dodge RamCharger 2wd 318 Carb 91,XXX
1995 Dodge Ram 1500 2wd 5.2 Magnum 137,XXX
1995 Dodge Stratus 2.0L 5 Speed 220,XXX
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1984 Pontiac Sunbird 1.8L Turbo

Offline ledzep_06

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Re: Re: 1995 Dodge Ram Poor Heat
« Reply #1 on: February 15, 2012, 06:53:43 PM »
Possible stuck open thermostat, feel the upper rad hose to see if it gets hot if you dont have a temp gauge. Clogged heater core, check the heater core hoses to see if one is hot and the other is cold. Just a couple quick check things.
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Offline 88raminator

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Re: 1995 Dodge Ram Poor Heat
« Reply #2 on: February 15, 2012, 08:03:11 PM »
The t.v. series Truck you did a show about this. Sounds like the airdoors in the box. Dealership costs a fortune and I cant remember who supplies the repair kit. You might be able to see it on there website-it had a lot of good info. in that segment,just didnt pay enough attenton due owning 2 88's
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Offline 88raminator

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Re: 1995 Dodge Ram Poor Heat
« Reply #3 on: February 15, 2012, 08:04:39 PM »
Typo- Truck U the t.v. series on Speed
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Offline lonewolf5648

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Re: 1995 Dodge Ram Poor Heat
« Reply #4 on: February 15, 2012, 09:58:27 PM »
I would put my money on the clogged heater core. I had a 95 and a 97 full size and my daughter has a 2000 Dakota, and all three have done it for some reason. U can change them out but it's not a fun project.
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Offline 3jvj

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Re: 1995 Dodge Ram Poor Heat
« Reply #5 on: February 17, 2012, 01:00:35 AM »
Sounds like you have a clogged heater core.

Backflush the core, or run some cleaner through it.
Go easy though; no need to blow a seam.

I have heard of blend door problems, but I wasn't aware of it being an issue on the 95 model.
 
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Re: 1995 Dodge Ram Poor Heat
« Reply #6 on: February 17, 2012, 01:07:21 PM »
the Rams are known for blend door problems / the heat core cant be plugged if he gets heat on recirculate


Vehicle Application:    
1997 Dakota 3.9    1996 Ram 1500 5.2
1998 Dakota 3.9    1997 Ram 1500 5.2
1999 Dakota 3.9    2001 Ram 1500 Pickup 5.9
1997 Dakota 5.2    2001 Ram 2500 Pickup 5.9
2000 Durango 5.9    

Customer Concern:    
The heater does not blow hot air. The temperature will change from cold to warm.

Average Reported Mileage:    
139740

Tests/Procedures:    
1. Remove the A/C control.

2. Unhook the blend air door cable from the A/C control.

3. Move the cable in and out to see if the blend air door can be heard hitting the stops in the cold and hot position.

4. If yes, replace the heater core if the blend air door is sealing.





Vehicle Application:    
1994 Ram 1500 5.2    

Customer Concern:    
Heater blows cold only. The heater hoses are hot.

Average Reported Mileage:    
128633

Tests/Procedures:    
1. Check for good cable between the heater control and the lever on the top side of the A/C housing.

2. If the cable is moving the lever, either the blend air door is not moving or the heater core is plugged
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Offline silvermopar1

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Re: 1995 Dodge Ram Poor Heat
« Reply #7 on: February 18, 2012, 08:54:30 PM »
I'm going to have to take a look into this blend door thing tomorrow.  Is it controlled with the temp knob that goes from red (warm) to blue (cool)? Or is it controlled with the knob that selects where the air comes out (vent, floor, defrost)?

I've noticed that the hoses to/from the heater core are not equally hot.  One is pretty hot while the other is just warm after driving for a while. 

Also, I can't hear a door shut/open when I rotate the temp knob, however it does change the temp of the air from cool to warm (when in the recirculate position)
« Last Edit: February 18, 2012, 09:07:10 PM by silvermopar1 »
1990 Dodge RamCharger 4x4 318 TBI 191,XXX
1985 Dodge RamCharger 2wd 318 Carb 91,XXX
1995 Dodge Ram 1500 2wd 5.2 Magnum 137,XXX
1995 Dodge Stratus 2.0L 5 Speed 220,XXX
1996 Yamaha XT225
1984 Pontiac Sunbird 1.8L Turbo

Offline comrade cheddar

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Re: 1995 Dodge Ram Poor Heat
« Reply #8 on: February 19, 2012, 07:24:41 AM »
Your heater core is plugged. I had the same problem. The cure was to hook a piece of hose to it from the faucet and run the water. got a trickle of sludge out so I hooked it to the other hose. Did this back and forth until it ran clean. Got a good cup of ugly sludge. I repeated it the following fall to be safe. Have had good heat since. Don't use full pressure or you may rupture you heater core and flood your cab.
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Offline silvermopar1

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Re: 1995 Dodge Ram Poor Heat
« Reply #9 on: February 19, 2012, 12:44:03 PM »
I do believe it was a somewhat plugged up heater core.  I flushed the system a couple times then unhooked the hoses to/from the heater core and ran water though the system and now I have pretty good heat.

Thanks for the advice and help guys.
1990 Dodge RamCharger 4x4 318 TBI 191,XXX
1985 Dodge RamCharger 2wd 318 Carb 91,XXX
1995 Dodge Ram 1500 2wd 5.2 Magnum 137,XXX
1995 Dodge Stratus 2.0L 5 Speed 220,XXX
1996 Yamaha XT225
1984 Pontiac Sunbird 1.8L Turbo

Offline moparmuscle1

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Re: 1995 Dodge Ram Poor Heat
« Reply #10 on: February 19, 2012, 01:51:23 PM »
Low water or anti freeze in the rad will also cause low heat
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