Mayonnaise on Coolant - Oil Cooler ?
 

Hello Folks! Long time no see :cheers:

Problem has already been discussed here quite some times, strong presence of mayonnaise inside the coolant :eek:. Ill start with removing the oil cooler and checking for internal mixing, since there is no external leaking (seems that rubber seals are "fine").

The question is - can this be done without draining the coolant ? Eventually ill drain it - and change oil too - but can i just remove and test the cooler prior to the drain ?

Regards :cheers:

Yes. It will be a little messy, but you have intermix already. You can minimize the mess by lowering the level of coolant in the expansion tank. I've used a turkey baster for that (do not use it for basting turkey afterward).
In most cases of intermix the problem will turn out to be a cracked head, especially in 2000 models. I actually did have one that was bad O-rings on the oil cooler though.

Hoping for the best. :cheers:

Thanks for the fast reply! :):)

Okay - ill try to lower the coolant level somehow before trying. In any case, ill take the chances and proceed with it as it.

My model is a 2004 2.7L one. Lets hope for the best :cheers:

In case there is a cracked head, any cost estimation available ? :D:rolleyes: