My Vy commodore Is Loosing Water Can Not Find Where It Is Going There Is Also Some Oil In My Radiator My Car Now Has A Slight Miss Idleing But Not Driving Also My Small Thermo Fan Is Not Working And The Big One Goes When The Air Con Is Going Any Ideas

You need to flush the system. Even though it looks ok and cools it is slugging inside at the crossovers and purking up.

Mike

Maybe oil pressure sensor switch if oil is leaking from it that's your problem.or your petrol pump has gone.when u turn your car ignition on u should here the fuel pump cone on.if not check fuel pump relay if that's ok it's your fuel pump common problem.

I think you should go for manual first after that it would be easy for you to solve your problem. I had visited this site past 2 months before for my vehicle and find it quite helpful may be you will also get something useful here
vy commodore

Head gasket is shot. White smoke coming out of an engine means water is getting into the cylinder head.

not sure if you can read in this vy forum as a guest or requires free registraltion

factory boasted fuel specs are unreacheable

https://forums.justcommodores.com.au/forums/vy-holden-commodore-2002-2004.12

hey I will give you all the information I know as you haven't given all details.

VY COMMODORE 3.8LITRE V6

Crankcase service refill =5.5Litres
Manual Trans 1.2Litres
Auto 4.8Litres
Diff 1.7Liitres

VY COMMODORE CALIAS 5.7LITRE
Crankcase 5.0 to 6.2 Litres
Manual Trans 4.4 Litres
Auto 5.0Litres


VY ADVENTRA 5.7
Crankcase 8.0Litres
Auto 5.0 Litres
Diff 1.5 Litres

hope this helps if you need more please contact.

All these symptoms are not connected. Alternators don't affect motor smoothness, or oil condition. Skip the temp, since it was normal.
Brown oil can merely need changing, some oil starts out sorta brown. If it is creamy, that means water is getting in, head gasket problems. That problem will give you a miss. If you are losing water from the radiator, and see water or vapor out the tail pipe, have the motor checked out by a mechanic. A compression test is worthwhile.

Try putting in an additive in your gas tank that cleans the fuel injectors. if your fuel filter was that dirty, the fuel injectors may be gummed up.

Get the cooling system pressure tested to locate the leak. The heater core could be leaking (is the carpet wet?), or it could have blown a head gasket (does it blow bubbles in the radiator?).