Dodge Ram 1997My sons 97 Ram 1500 has no heat the fan works but just no heat looking for a fixMy sons 97 Ram 1500 has no heat the fan works but just no heat looking for a fix Christopher
does the engine get up to temp
check the fluid level sometimes if they’re low they won’t be enough fluid to travel through the heater core if that is OK on hook the lines going to the heater core and blow through them with your mouth not an air hose see if there is any restriction sometimes by reversing the hoses if there’s anything plugged in it it will blow it through the other way and you’ll have heat again
There’s a vale in the heater hose lines under the hood make sure its working it blocks off the hot water going to the heater core. Its controled by vacuum. Also make sure the vacuum lines are still attached to the engine
I’m having the same heating problem in my 2000 and i did all of that its better than before but still not worm enough
if all that dont work then your heater core is plugged with road dirt you should pull the fan moter and look for debris in the hole you might need to power wash the heater core . i had one plug up on me . it was a bitch of a job to get at it but i got some heat ..
There’s a door in the dash that controls the mixing of hot and cold air it could be stuck or have something stuck in it. Ive seen everything from pencils to candy wrappers in them
Is your operating temperature up to where it should be? If not then it could also be a thermostat might be stuck open, sometimes it is only a small amount, you get some warm air but takes a long time to heat up the passenger compartment, then it still isn’t a comfortable warm or hot. When they are stuck open, the coolant is circulating straight through the engine and it is not being heated up to send to the heater core.
Check your coolant level, make sure its full.
Just put a heater core in mine yesterday but I hear its usually just the cold/hot door
Thanks guys I will look and check it out. Thank you for the help
I had no air flow, fan ran.. no air.. 09 Ram – dealer fixed it under recall. There are numerous recalls on the AC and the air box actuators
His sons Ram is a 1997!
There is one vacum line also that comes from firewall to the valve make sure that is connected to the vacum line t connector on passenger side under hood. I had forgot to hook mine back up when i rebuilt my truck couldnt figure out why my fan was goin but no heat. I had kinda pushed it close to firewall and forgot it was there but make sure the line is good. Just another option.