i was driving tonight and i was no more then 4 kays from home when the 'engine temp high' alarm came on. naturally i pulled over and let it cool down. when i got back home (about 30 minutes later) i popped the bonnet only to find the lower radiator hose leaking. i had figured the clamp was loose and it had just lost coolant. i went and bought new coolant (drove dads ute) and a new clamp, fitted it and topped it up. i took it for a spin around the block after a few hours and it did the same thing, the warning came on. once again, i got it home and checked everything. the hose/clamp were fine. not a problem. but you coudl hear the coolant being blown back into the overflow. after taking the radiator cap off you could see the water going up, and down, and up and down. and also when it was revved the water would blow out the top. my old man reckons that thats a tell tale sign of either a fugged thermostat or a blown head gasket... so, anyone got any suggestions of have they had any problems similar to this?
Going on past experiences with the VT they had a screw on top of the engine to let the air out the top so you don't get air locks, now I am 100% on these engines but if they work the same way when changing the water or refilling after losing a lot of water you have to let the air locks out from the top of the engine block to avoid the type of thing you are having. It just a thought as I have not had a good look at the cooling system yet.
yea its still under warrenty. im going to call them monday and get them to pick it up. no way im driving it there!
Thermo is blocked causing ya to blow the hose! Pressure build up-Now ya have fixed the hose and topped her up still the same problem right? So its the thermo...take it out and start ya car i bet no probs.. do this just to test it-i recommend ya put a new thermo in. let us know what the problem was. Not the head gasket i very much doubt it.
alloytec has a coolant system cap on the highest point at the front of the motor, if you fill it from there and let all the air bleed out with the engine running that should ensure thats not the problem. its possible its a head gasket, way to rule it out would be to remove the cap i mention above, start the motor and fill the coolant up till its lapping at the top of the cap, then see if you get any bubbles coming up, if so this could indicate compression getting pumped into the coolant system, also the pulsing water could indicate the same thing .... having said that thermostat being stuck closed will cause overheating, but i don't know if it would cause the pulsing your describing. anyways, its monday now so your cars quite probably at a dealer already
Highly unlikely to be a stuffed thermostat on a VZ, not old enough to be getting those dramas and if it was faulty it would have been overheating rom day one. Id say its an airlock in the system.
just had the NRMA dude out to looka t it and it isnt doing ****... but he has suggested that i get it looked at anyway. ive also got a few other things to be looked at while it is in so i will make the most of it
Hi Troy... I am contacting you regarding your experience with your beautiful looking Silver WM Statesman. I have the same experience on the street and the symptoms are identical. I have taken the water pump off as well as the Alloy inlet for the top radiator pipe. The pump is not long new and is perfect. I found no debris in the inlet for the top hose. My radiator was all choked on road grime and dirt and grease at the front of the radiator. New high grade coolant has been added. Spoke to Holden Dealer, suggested it may be the Radiator or the Thermostat, which is located at the back of the motor, advises that the trans must be removed to access the Thermostat. I saw the new Thermostat at local Auto shop... long stainless steel probe... looks like a small spring... with a temperature reading Tip that then sends to the very normal little thermostat sitting inside a little recess.. I was told to renew both and I would never have the problem again..... Well that is as far as I have gotten ... Did you ever resolve your very same issue. If so or not... I am interested in reading what you have to say. Absolutely love the pic of your car... funny thing I have earmarked window tint and black painted mags with a polished rim. Then seeing yours just amazes me. It looks quite sleek, gorgeous car of yours. Im hoping to hear from you soon. Cheers Dooley G.
Hi guys...i am having 08 caprice wm 6.0 v8...since today i am facing an engine overheat problem...the engine temperature goes all the way upto 112 c and the drops quickly to around 105 c and stays around 95 c while at highway driving(earlier used to stay around 91c on highway driving and max 100 c while parked with engine at idle)...any ideas???
