I've been noticing that I'm getting what looks like a steam mist coming from my vent tube. It's not a heavy mist, but it puts a thin coat of oil around my oil pan and front driveline. Truck has 144,000 on it. Is this something that I should be concerned about? I use about 1.5 to 2 quarts of oil every 4,500 miles.

 

check out the post about replacing the vac pump seal . Im gonna replace mine soon. Ive been getting enough blow by to cover the under side and tailgate of my truck . I dont think there is any real damage as long as you keep enough oil in her .<br> Wheels<br>

 

Also check your lift pump. If the inside seal gets bad it will put a small amount of diesel in the oil and cause a lot of blowby.

 

[quote author=dsljunkie link=board=16;threadid=13581;start=0#127876 date=1050333028]<br>check out the post about replacing the vac pump seal . Im gonna replace mine soon. Ive been getting enough blow by to cover the under side and tailgate of my truck . I dont think there is any real damage as long as you keep enough oil in her .<br> Wheels<br> <br>[/quote]<br><br>That kinda leak is not blowby it's just a bad oil leak.<br>Blowby is compression blowing by the rings causing the oil mist to blow out the vevt.<br>Hence the name BLOWBY<br><br> : Eddie : 8)

 

Any way of telling if it's the lift pump without pulling it? Any visible signs from the exterior?

 

If the lift pump is bad you will either get fuel in the oil [ oil level on dipstick will rise ] or it will leak on the ground.<br>Thats what mine did 2 weeks ago and it was intermitten for about 2 months.<br><br> : Eddie : 8)

 

Thohgt I had blow-by problem only to find that my AFC housing was leaking. It's directly above the breather tube and made it look real bad. Tony

 

[quote author=Turbowd link=board=16;threadid=13581;start=0#127768 date=1050290802]<br>I've been noticing that I'm getting what looks like a steam mist coming from my vent tube. It's not a heavy mist, but it puts a thin coat of oil around my oil pan and front driveline. Truck has 144,000 on it. Is this something that I should be concerned about? I use about 1.5 to 2 quarts of oil every 4,500 miles. <br>[/quote]<br><br>If your using that much oil I would be finding the prob.<br>I change oil every 5000 miles and it doesn't use a drop [ knock on wood ] :-X<br>And I run my truck pretty hard working and playing. :<br><br>I bet you got a leak somewhere. <br>Look real close at Afc housing, vac. pump ,ect.<br>There is prob a little prob that looks big.<br><br>GOOD LUCK !<br>Keep us up to speed on what you find.<br><br> : Eddie : 8)

 

The two things I did to cure oil leakage was replace the gasket between the vacuum/power steering pump assembly and the block and hang a small vitamin pill bottle on the end of the breather tube. No drips now!!

 

Sides of the block are dry UNTIL I get to the oil pan. Some of this appears to be coming from it, if not all of it. I need to check my rear main too. Any slick ideas on how to replace the pan gasket?<br><br>Thanks