I decided to change the PCV valve on my truck today since it is about to turn 60K. I never really looked at the thing before. I got a new one at Advance, just your typical PCV valve design. No adapters needed or anything.
The strange part came when I opened the hood to actually look at the setup. For some reason, a smaller diameter heater hose comes off of one of the main heater hoses back to the PCV valve where a metal elbow wraps around the valve, then goes back to rubber hose, which goes back to the main heater hose again. The metal elbow makes direct contact with the metal PCV valve and is held snugly in place with a clip that is an absolute [censored] to remove.
So, what is the purpose of this setup? I changed many PCV valves back when I worked at Jiffy Lube and never saw anything quite like this.
The strange part came when I opened the hood to actually look at the setup. For some reason, a smaller diameter heater hose comes off of one of the main heater hoses back to the PCV valve where a metal elbow wraps around the valve, then goes back to rubber hose, which goes back to the main heater hose again. The metal elbow makes direct contact with the metal PCV valve and is held snugly in place with a clip that is an absolute [censored] to remove.
So, what is the purpose of this setup? I changed many PCV valves back when I worked at Jiffy Lube and never saw anything quite like this.