Why does my Dodge Ram 1500 have no heat?
Either your heater core is blocked and isn’t flowing coolant anymore, or your blend door is also messed up. The blend door itself is not driven by vacuum lines – this one is driven by an electronic servo motor. The servo coupler is a cheap plastic piece of shit that gets broken over time. This is the weakest link in the blend door system.
How does the HVAC work on a Dodge Ram?
The HVAC box is basically spring loaded to default to defrost mode. The air setting dial on your dashboard redirects vacuum to a series of diaphragms around the HVAC box to change where airflow goes. The airflow direction mode is not controlled by electronics. It is not controlled by the blend door.
Where does acceleration vent go on Dodge Ram 1500?
Small molded 90 degree nipple, then a check valve, then a Y, one plastic tube goes to the passenger front side, behind/below the headlight, to a T, one drops to the Cruise servo, the other to the vacuum reservoir. Going back to the other side of the Y, that hose goes up and to about the center of the firewall.
What causes intake manifold to leak in Dodge Ram 1500?
If reading is 3-8 inches low and fluctuates at that low reading suspect an intake manifold gasket leak at intake port or faulty injector. 3. If the needle has regular drops of about 2-4 in hg. at a steady rate the valves are probably leaking.
Either your heater core is blocked and isn’t flowing coolant anymore, or your blend door is also messed up. The blend door itself is not driven by vacuum lines – this one is driven by an electronic servo motor. The servo coupler is a cheap plastic piece of shit that gets broken over time. This is the weakest link in the blend door system.
What kind of air flow does Dodge Ram have?
2008 Dodge Ram 1500. Took out glove box and could see the fresh air damper/door is in place and pulled the blower fan motor, nothing broken in there. I felt back inside and the evaporator core and it felt iced. The problem is 80F on drivers Side. 60F passenger side.
Small molded 90 degree nipple, then a check valve, then a Y, one plastic tube goes to the passenger front side, behind/below the headlight, to a T, one drops to the Cruise servo, the other to the vacuum reservoir. Going back to the other side of the Y, that hose goes up and to about the center of the firewall.
Where is the HVAC switch on a Dodge Ram 1500?
If you have vacuum at that line inside the engine bay, then check the HVAC switch at the dash. That black vacuum line you checked inside the engine bay leads to the back side of this thing: Pop your dash bezel off and take a good look at the backside of this thing. It is not an electronic switch – it is a simple vacuum port switch.