T4 turbo

[mike6851]

Originally Posted by spangoolies

you can fit any turbo you want off any petrol volvo s/v40 1996-2004. they are all physically the same, the only differences are the internal compressor wheels and exhaust internals, but all are the same fit. a 12t will match what you have but a 14t off a t4 will give you more power, just dont go crazy as the 2.0t have very weak engines. like i said, dont worry about singlescroll or twinscroll, it doesnt affect anything.

jusy buy a t4

anyway i have a 1999 t4 with just over 193000 miles on the clock

well the thing is im getting a small amount of oil in the carb and the engine oil don't seem to drop the car still runs like new
but is this normal

[mitchyboy01]

Originally Posted by Dale

The car was idling very badly, cutting out at traffic lights etc.
Acceleration was very rough, lagging power.
Now the fan comes on not long after starting up.
I've not been using the car for a few weeks coz of the probs.
I had a diagnostic done, it came up with O2 sensors.

I have replaced the Lambda Sensor on exhaust,
Replaced airflow sensor,
Replaced spark plugs,
Replaced coil packs and leads.

I'm running out of ideas now only thing I can think of now is the turbo.

Do a compression test mate. Takes 10 mins. It sounds like it could be head gasket. Compression tester is 15 quid from halfords. Strange your overheating but haven't had problems losing water though.

[mitchyboy01]

Originally Posted by mike6851

jusy buy a t4

anyway i have a 1999 t4 with just over 193000 miles on the clock

well the thing is im getting a small amount of oil in the carb and the engine oil don't seem to drop the car still runs like new
but is this normal

Carb? Do you mean throttle body? It's normal to have a small amount of oil in the boost pipes and throttle body. If it's excessive though it is a sign your turbo is on it's way out. I wouldn't worry about it though until you get oil smoking from your exhaust. My old t5 had a worn turbo but ran fine and lasted ages before it finally began to smoke when left idling for a few minutes.

[mike6851]

if the car is overheating check or replace the thermostat mine had been in the car for 11 years and was stuck closed

[T4Rick]

If you do need a 14t turbo ive got one in the for sale section