1HD-FT gas filter (1 Viewer)

[Shyrock]

Yes, gas filter. A leak has developed at the front hose connection. That hose goes to the air intake housing near the turbo outlet. The leaking fluid is a little oily, a little watery. The other hose on the gas filter goes to a T fitting then to a vacuum switch. Is the filter likely clogged, causing the leakage/seepage? Suggestions

 

[mudgudgeon]

My suggestion, pull the intake hose off the front of the turbo and see if you have oil collecting in the intake hose.

1HD-T has the PCV hose plumbed in to the intake before the turbo. Any blow-by oil is gonna end up in the intake tract and can show up in boost hoses.
I'm less familiar with 1HD-FT but believe PCV will be routed essentially the same.

Some people fit an oil catch can in the PCV line to stop oil reaching the intake. Get the catch can set up wrong, you can pressurise the crankcase and cause oil leaks, and increase blow-by.

Another option, and maybe not legal in many places, run the PCV hose down into the chassis rail

 

[Shyrock]

@mudgudgeon No catch can, but I had considered adding a Raco unit. Little sign of oil in small hose into air intake. I’ll pull turbo intake hose later to check.