[6Sixathome]

I got home from work before my wife and just happened to go into the garage for something and saw a 3" to 4" DIA puddle on the floor about where the water pump would be when the OUTLOOK is parked. The 1st thing I thought was condensation from the AC system but when I stuck my finger in the puddle I could tell right away that is was coolant. My wife got home shotly after that so then I put it up on ramps and got a good look, I could see where it had dripped but it was dry and the reservior was right where it had been so I dont know what's going on, I guess I'll have to take it in. Just what I wanted to do, it has to go to the dealer where I bought it from, formerly Saturn, now KIA and is about 45 min away to get the DVD player fixed, the DR side screen just went blank and has no power to it. I'll take it to my new Chevy,GMC,Buick dealer for the coolant leak. 31,750 miles!

 

[6Sixathome]

*UPDATE*

My wife went out again and when she got back I thought I have a look see, sure enough it was dripping right where the water is :banghead:

rbarrios, do you have a brake down of this?

 

[jsimms]

Well it it is the pump; at least you have warranty :-\

 

[sailfish]

*UPDATE*

My wife went out again and when she got back I thought I have a look see, sure enough it was dripping right where the water is :banghead:

rbarrios, do you have a brake down of this?

Bummer! :sosad:

 

[rbarrios]

the water pump can be done thru the wheel well.
they remove the tire- and access the area thru there.
the water pumps on the lambdas now have a specific tightening procedure.

The water pump is behind the upper pulley in this pic- taken from the wheel well area. you can see 2 of the water pump bolts.. that you can reference with the bolts in the schematic.

New Water Pump Bolt Torque Sequence
By Blog Admin on March 2, 2011 8:52 PM

A new water pump bolt torque sequence has been implemented on all High Feature V6 engines (2.8L, 3.0L, and 3.6L) to help reduce the potential for water pump gasket leaks. This applies to all model years, 2004 through 2012.


When installing a water pump, use the following revised water pump bolt torque sequence and procedure:


Ensure that the engine front cover and water pump are clear of old gasket material.
Ensure that the water pump mounting bolt holes in the front cover are completely clean and dry.
Place a new water pump gasket on the water pump.
Place the water pump in position on the front cover.
Install the water pump bolts finger tight.
Tighten the water pump bolts in sequence to 12 N·m (106 lb. in.). (Fig. 24)
Tighten the water pump bolts a second pass in sequence to 12 N·m (106 lb. in.).

 

[6Sixathome]

Thanks rbarrios, awesome as usual :thumb:

 

[GM Customer Service]

Dear 6Sixathome,

As I have read further down the thread, I see the break down that you requested. How are things going with this? Did you decide to perform the work yourself or did you decide to get it to the dealership?

Michelle, GM Customer Service

 

[jsimms]

If under warranty; I would get the dealer to perform this work.

 

[6Sixathome]

I left it at the dealer ALL day and they could not get it to leak :banghead:. He said they let it run for a long time and it would'nt leak. When I got in it to take it home they had the defrost on *90 full blast, so they must of tried for a while. I drove it 15 min home and it did'nt leak either so I don't know what's going on, I'll just keep an eye on it. Bummer

 

[medicrxdoc]

They can also add dye to the coolant system to detect leaks with a UV light....if they want to I guess.

 

[6Sixathome]

They can also add dye to the coolant system to detect leaks with a UV light....if they want to I guess.

I don't know if they did or not but I got under the car last night with a flash light and looked all over the water pump, pully, belt area and it was dry and I know it did'nt come out the overflow because it was not wet the first day I saw the puddle. IDK, it'll probably leak today :mope:

 

[6Sixathome]

It's been a week and still no more coolant leaking I probably made myself look like an idiot to the dealer by saying "I think my water pump is leaking". I know it did'nt come from the overflow because I felt all around the tank and no signs of a leak. What is this weep hole I've read somewhere on the forums that our Lambda water pumps have?, could it of come from there and sealed itself up again?

 

[jsimms]

The weephole is on the bottom of the pump; it's a small opening that can start and stop leaking. Regardless of what your dealer found; I would keep an eye on that pump.

Here is the explanation for having a weephole: http://www.acadiaforum.net/forum/index.php?topic=5719.msg100084#msg100084

I tried to find a pic for location but I could find one.

 

[medicrxdoc]

I have read of our waterpumps doing exactly what you said. They leak then seal themselves up for a little while until they leak again. I don't know where I read this so I don't have a reference to post.

 

[jschwab]

Hi-
Just skimming your post. I had a similar thing happen, thought it was coolant that had leaked in my carport-a huge puddle one day then absolutely nothing for the following week. Took it to my mechanic and found out the A/C compressor was bad at 23K miles-fortunately it was still under warranty and GM replaced it. Good luck!

 

[6Sixathome]

Hi-
Just skimming your post. I had a similar thing happen, thought it was coolant that had leaked in my carport-a huge puddle one day then absolutely nothing for the following week. Took it to my mechanic and found out the A/C compressor was bad at 23K miles-fortunately it was still under warranty and GM replaced it. Good luck!

Could you tell what color the fluid was? What I had looked and smelled like DEX-COOL. Is "Freon" pink?

 

[medicrxdoc]

Could you tell what color the fluid was? What I had looked and smelled like DEX-COOL. Is "Freon" pink?

The refrigerant is dyed green (from people who have reported leaks).

 

[6Sixathome]

The refrigerant is dyed green (from people who have reported leaks).

Mine was coolant then.

I have read of our waterpumps doing exactly what you said. They leak then seal themselves up for a little while until they leak again. I don't know where I read this so I don't have a reference to post.

I hope it shows it's ugly head again and stays leaking long enough to take it to the dealer so they believe me this time :-[

 

[6Sixathome]

Well it's 100* out today and it leaked enough for the dealer to determine it's the water pump, a new one is on order :thumb:. He said they'll do the job the 1st week of August (booked up) and just keep an eye on the coolant level. OK to drive if I do that.

 

[sailfish]

:thumb: Finally!