Hi family!

940 SW Turbo 2.0L B200FT
284000 Km

I recently replaced the exhaust manifold as well as its gasket to the block.

I drove about 6000Km (almost all highway), and the car was perfect.

However, it seems I am getting into another unexpected trouble, here below the symptoms:

1. When the engine is cold, you get a rough running when you first start it. After 1 min. it runs smoothly.
2. White smoke from the exhaust all the time
3. Coolant is leaking (I have to fill-up the water tank every 2-3days). I thought it was the radiator, got a new one, it is still leaking from all the hoses, and now also under the water tank itself. This means the pressure in the system is high.
4. Engine Oil has recently blown out from the oil cap.

The good news is that the engine has never overheated, the needle is always in the middle.

I suspect a head gasket failure, the car is 25 years old and the gasket has never been replaced, but you are certainly more qualified than me to tell.

I recently replaced the following (always with your help!):

1) Exhaust Manifold
2) Exhaust Manifold gasket to block
3) Oil Cooler gasket
4) Radiator hose Water pipe - Oil cooler
5) Radiator hose Crankcase - Oil cooler
6) AC Condenser
7) Radiator

Apparently, there is only one mechanic at my local Volvo dealer who is able to diagnose my car, (and surprisingly I have been told he is the youngest!). He will be back to work in one week.

1) Is it reasonable to suspect the headgasket? I guess the symptoms are there, and after 25 years it makes sense.
2) Is there an easy way for Volvo to see this?
3) I am trying to mentally prepare myself for this job, I know it will take a long time to do it well, I have downloaded the guide in the FAQs. Is there any other good reading or video tutorial you would recommend me?

4) Wish me good luck!

Thank you!
Alessandro