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There is a vacuum pump but that about as far as my knowledge goes.😁

It smokes for a couple seconds when the weather is cold. I have injectors on the list of possible to do's. I don't know how to tell if they are bad or not. There is no leaks around the IP and it runs fine.

Switched the lines out and it was quick and easy like you said. I noticed a couple hairline cracks in the transmission bell housing. How serious are they? Is this something that can be repaired with a migraine welder? Her are some pictures: https://photos.app.goo.gl/iDfg9pEoufSjLfir1

Thanks for the tip. I was going to drain all the oil, is that not necessary?

Your right! I have those lines and was going to try to hold off until spring when I swapped out the oil. If that is the root of the smell I guess I need to do it sooner if I want my wife to ride anywhere with me. Thanks so much!

Ok. The issue is somehow related to the heat/blower. No smell when driving without the blower on, but when I turn it on there is a smell. I put a CO2 detector in and it does no go off. I sealed around the blower housing and the heater core but that did not help. Any ideas what could be...

Thanks I'll look into that as a possibility.

I have not found an exhaust leak, but lots of other fluid seepage leaks. Here is what I found so far: The only soot having to do with the exhaust line I could find was around the intake manifold. It was even all around so no obvious culprit: There was little oil residue under the air...

Ok thanks I'll leave the manifold alone. I'll check the floor for holes, and replace the valve cover gaskets. I'll trace the fuel lines and look for small leaks as well. The smell seems to be coming from the front passenger side seems is worse with the passenger window open.

Is a gasket not needed for the exhaust manifold?

Noob question: Can I use permatex ultra black for the valve cover gasket, intake manifold, and the exhaust manifold gaskets? What would you guys use?

I'll put tape around all the seals on the tailgate and window to check if that solves the issue. That's for the suggestion.

Near the IP was dry. I'll check towards the back of the block. Thanks for the heads up

Thanks for your reply. I am looking for the cause and will get it fixed. I brought it to my mechanic after my wife complained and he thought a seal on the transmission was bad and flinging oil around the engine bay which was hitting the exhaust and smoking and causing the smell. There also...

At first I thought it was "just an old diesel truck thing" when I took it home a month or so ago. Went on a half hour drive with the wife and she said the fumes bothered her and she got a headache. There was oil all over the engine compartment that I thought could be getting hot and smoking so...