CAT C15, engine smoking

I post this in the mechanical section also,.. so forgive me if you read this already.

05 Columbia with 04 BXS C15 ACCERT

Long story short, I just had a new water pump put on by a mom n pop shop in Grantsville Md.

They tell me its fixed,.. I go in the shop and see my truck running,.. but its smoking like a chimney. Looks like bluish white smoke. I smell antifreeze,.. but I can not locate any leaks.

Mechanic said they always smoke like that after a new waterpump. I'm scratching my head trying to understand how a water pump can effect my exhaust. I'm thinking something went into my EGR or he didnt seal something off and the EGR is sucking coolant.

Stopped for the night,.. checked coolant level this morning,.. lost 3 gallons from Cumberland Md to Middleton CT.

The exhaust smoke stops (Mostly) after I run the truck and it gets up to operating temp,.. 180 - 200f. But once I stop and it idles down to about 150 - 175f.. the smoking starts again. Its really embarrassing. This truck has never smoked.

What could be the problem here? Am I right thinking he screwed up my EGR?

Thanks,

Hurst

 

Its gear driven,.. dont want to think a shop could be that ignorant.

Going to look at checking for head gasket/cracked head tomorrow. Thats my worst fear at the moment. If I can rule the head out of the equation,.. I'll sleep better.

Hurst

 

Yeah I was already schooled on that. I thought the pre-cooler was an EGR. Doh.

Anyway,.. head gasket/cracked head is ruled out. Oil was clean, pressure test showed nothing.

Going to pull apart the pre-cooler. It was suggested that because it needs to be handled when removing the water pump,.. it was probably enough to cause it to leak. Its something I can do here.

The water pump was replaced because it was leaking out of the weep hole. It was the original CAT water pump with 1.2 million miles on it. I felt it would be a good idea replace it rather than wait until it left me on the side of the road.

Hurst