mercer transportation

I do believe you are correct , Mr. Stranger

 

Did you figure out your oil in the coolant, or was it coolant in your oil problem, or maybe I missed it....

 

Tensioner or idler pulleys can both be either way.

 

It looks like either a tensioner or free spinning idler that just keeps the belt ran right. If you take the belt off and spin it by hand you will be able to tell if the bearing is going bad. It will feel rough and jerky instead of spinning free and easy.

 

does anyone know what that part is called? That's under the truck First time I've greased my truck.... I've been paying TA to grease and boy they haven't even touched half the fitting... SMH

 

Not sure what the part is, but that is probably not a grease fitting. Grease fittings generally will not have covers on them.

 

Is it a slave cylinder? The "zerk" may be a bleeder. Where do the lines go?

 

I'll have the check next time I crawl under, I should have snapped couple more pictures

 

looks like a clutch servo

 

I think you got it right, looks like it now that you say it.