Intake manifold rear hose

Hello,

These two hoses go through your vehicle's firewall and go to it's heater core. One takes the coolant to the heater core and one takes the coolant from the heater core back to the intake manifold. I have included what information I can find on the heater hose below in a link (it is for heater hose replacement but I provided it for information only).

https://www.2carpros.com/articles/replace-heater-hoses

Please go through the guide and do not be afraid if you have any other vehicle related questions to ask.

Thanks,
Alex
2CarPros

Hello again,

Okay, my bad. Without seeing it sometimes it can be hard to get it on the first try. This is going to be your EVAP line coming your vehicle's charcoal canister. This is the final step in your vehicle's evaporative emission system that catches fumes from the fuel tank and stores them in a charcoal canister until your vehicle's Power-train Control Module (PCM) decides to purge them, then is opens a valve and they get introduced through the hose in question into the intake manifold where it is burned in the engine. I have included a factory description of how your vehicle's EVAP system works in the diagrams down below.

Thanks,
Alex
2CarPros

Nice work, we are here to help, please use 2CarPros anytime.

Hi
1537 means ICRM is not closing in required time most likely faulty actuator. see diagrams

swirl valve

Check butterfly operation for binding
Hope this helps
Thanks for donate

Not too familiar expressly with Rangers, but the imrc I think is a remote mounted actuator motor with cables attached to the butterfly valves on each bank, there mat be two cables or only one depending on application, the actuator sends signals to the pcm indicating butterfly valve and cable positions, be careful, the levers and return springs are strong, keep your hands and fingers clear of levers and so on. Check cables, levers and valves, make sure none are binding, obviously in your case, something is being held incorrectly, the runners are sticking, the actuator(s) has(have) failed, cable problem, or faulty wiring issue

Why are you suspecting the ECM? That is the least likely cause of that issue.