Previously discussed overheating issues

[wasam]

Replaced thermostat, water pump, heater tap, serpentine belt, top & bottom hoses, radiator cap, finally replaced radiator. Flushed whole system refilled with new coolant & bled. I got into the habit of checking fluid level & oil before & after driving. Went for 100k round trip, temperature normal. Checked fluid & oil when cooled down every thing fine. Sat idle for 2 days checked fluid and oil and oil was milky. Why would this happen.

 

[Forcedvp]

Sounds like one of your head gaskets is gone.

 

[vc commodore]

Did you replace the LIM gasket? The symptoms you describe sounds like the LIM gasket has failed and is a very common problem with V6 ecotecs

 

[wasam]

How do I check lim gasket

 

[gossie]

Head gasket either one side or both sides.
Car has been overheated and warped the heads.

 

[vc commodore]

How do I check lim gasket

Maybe do a little search on the forum on this topic..

When I bought my V6VY, the person that sold it to me had the same problems....Water in the oil....Couldn't see any obvious signs of water loss...So they cracked the sads and I got it.

I didn't do any checks...Just went by knowledgeable people saying it'd be the LIM gasket, so off with the inlet manifold and surely enough, could see the signs it was failing...

Replaced and 3 years on, still no oil in the water or unexplained water loss

 

[wasam]

Thanks! Any info on forum about how to check. Iam new at this game.

 

[vc commodore]

Thanks! Any info on forum about how to check. Iam new at this game.

First point of call is see if the manifold bolts are loose....That's the 3/8 headed ones that bolt into the head....If some are, that's a sign the LIM gasket is going

Have a read here

https://forums.justcommodores.com.au/threads/2001-commodore-using-water.283613/

https://forums.justcommodores.com.au/threads/vx-commodore-ecotec-coolant-leak.289865/#post-3189905

 

[Vz sv8 2006]

Hi there i got a cheap vy it overheated and had milky radiator cap I checked over engine it had coolant coming from manifold bolts turned out to be collapsed lower manifold gaskets replaced them car runs great haven’t lost a drop of coolant since.

 

[wasam]

Hi there i got a cheap vy it overheated and had milky radiator cap I checked over engine it had coolant coming from manifold bolts turned out to be collapsed lower manifold gaskets replaced them car runs great haven’t lost a drop of coolant since.

Thanks for the feedback. I put chemi weld in and has done the trick hopefully.