Accidentally Connected Coolant Line to Air Intake

[ral6639]

I know I did a no-brainer, but it was a late night of replacing valve gaskets and I was in a hurry to get my 2002 LS8 put back together. When hooking up the vacuum lines and coolant lines, I connected the degass vent line to the vacuum port on the air intake pipe next to the Mass air sensor. When I started the car, the exhaust was filled will white smoke/vapor. I also changed the spark plugs and sprayed some carb cleaner in the spark plug cavity to clean the oil out. I didn't think much about the excessive smoke because I thought the engine needed to burn off excess carbon deposits. I shut the engine off and connected the lines correctly. I had to disconnect the battery to reset the engine code. I restarted the engine and the white smoke/vapor quickly went away but at high rpm's the white smoke/vapor reappears. Do I have antifreeze in the exhaust pipe that needs to burned away or do I have more serious issues?

 

[RigsLS]

Oh this is going to be a good thread!

 

[lsemex04]

:shifty:

^ i Agree :shifty:

 

[joegr]

Personally, I would take the throttle body off and suck the water out of the bottom of the intake manifold. You probably have about a glass full pooled there.

Otherwise, it sounds like you got lucky and didn't hydrolock it. If the smoke continues after clearing the manifold and driving several miles, you'll need to do a compression test and leakdown test to see if you damaged one of the head gaskets.

 

[G-RELL]

ouch, sorry bud ^ agree with Joe though... start tearing into it...+ an oil change!

 

[ral6639]

Thanks for the info guys. I couldnt find info anywhere on the web about this. It might be a first for this stupid mistake. I just with there was more room under the hood to work on this engine! I love the car but its a PITA to work on the engine.

 

[lsemex04]

.

i love the car but its a pita to work on the engine.

true :w

 

[joegr]

Thanks for the info guys. I couldnt find info anywhere on the web about this. It might be a first for this stupid mistake. I just with there was more room under the hood to work on this engine! I love the car but its a PITA to work on the engine.

Yes, there are cars with much more room that are easier to work on, but there are also cars with less that are more difficult. In any event, it is very important to keep track of where each hose goes, and everything else for that matter.

 

[hite337]

but there are also cars with less that are more difficult.

+1

 

[Ranchero50]

Get the water out, I hydro-locked a 4.0 in the wife's '92 Explorer trying to decarbon it with a coke can of water through a vacuum port. Worked great until I got out and shut the door and the water puddle in the upper intake went down a port...