Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[JamesV6CDX]

its simply that it weeps coolant out of the back of the 2/4/6 head, only ever seen it on 1998 3.0l though.

Agreed... although the 3.0,  2000 W facelift MV6 I bought from BazMV6 (witih a known coolant leak) had this proboem too

[cem_devecioglu]

Andy, wouldn't I see that from watching underneath the car for 20 minutes after a long run?
No water loss is apparent - anywhere.
Unless the GM V6 unit is truly unique in some characteristics, my experience of HG failure on other vehicles is totally unmistakeable - no way could you drive the car another mile, let alone hundreds of miles.
Emulsification in the filler neck does bother me, but my Veccy B 2.2 did just the same - that definitely did NOT have HG failure, but DID have weeping at the core plug - could it be this?

HBV leak - depends on heater settings, as others have said. Some leak hot, some leak cold.

HG - its not a firering problem, so no misfires etc, its simply that it weeps coolant out of the back of the 2/4/6 head, only ever seen it on 1998 3.0l though.  Core plug is another possibility, again, only ever seen myself on 1998 3.0l, and only (again!) ever seen on back of passenger head.

Mayo in filler neck isn't uncommon this time of year, esp if you do short journeys. Nothing to do with coolant getting in engine, its just moisture getting in the oil, and engine not heating up enough (about 15-20 miles) to evapourate it fully off. The elongated filler tube appears to be the last to heat up.  Though its likely the breathers will be in the same state, so keep on top of that.  Some oils are worse than others - Castrol GTX and Magnatec are by far the worse I've ever seen for this.

yep.. on mine also firerings were ok.. it was from the corner

[henryd]

A coolant leak.

HBV is common, oil cooler/stat weeps. Worse case, passenger side HG - though that tends to be more 1998 3.0l

You just have to trace leak...

Or of course the water pump,had someone with one gone last week,Of course I thought it would be the HBV but in this case not