Have had car at garage and had thermostat replaced. The car is not using oil or water but on temperature gauge it keeps rising not quite sure what the issue is. Any ideas ?
gsimpson,
Apr 8, 9:32am
Does fan come on?
painterman,
Apr 8, 9:37am
yip
quickbuck,
Apr 8, 9:42am
Is the system bleed of air properly? They did replace the coolant with the correct quantity of the recommended type I take it? Also, you say it is rising, but does it ever get to the Red Zone?
gsimpson,
Apr 8, 9:45am
Check hoses top and bottom as to whether the water is getting cooled on way through. Not hard and fast but if cooling then the water pump may be worn and if both hot then the radiator may be partially blocked and the water is shooting through a small portion of the radiator. Will probably be cheaper to check radiator.
intrade,
Apr 8, 10:13am
yes look in the bottle for return flow the small hose must return a ton of fluid if the waterpump impellor is moveing the coolant
Coolant temperature sensor common fault - waterpump too
intrade,
Apr 8, 3:34pm
coolant temp sender is yours a petrol? should be able to check with a cheap global obd2 plug. not if it is a diesel however coolant temp on dash is not the same as it is for engine computer . the temperature must be the same or close to what ever it is outside when engine is stone cold like 25 degree day should read no more then 30 if it reads 64° when stone cold then you have a substituded value . and this is not just vw doing exactly that nissan toyota opel all will run a substitute value when there is a problem. Also you will only read out any codes on a vw with a oem level diagnostic tool like rosstech vcds. i have the professional rosstech version costs 750$ or so with winblows software and free lifetime upgrades-
tulip17,
Apr 8, 3:39pm
I'm waiting for someone to come up with a motor where you have a carburettor and a set of points
intrade,
Apr 8, 4:04pm
That wont ever work its impossible to pass emissions with a carburettor and points is also a bad thing. carburettor you have not got well enough controll over the amount of fuel going in to the engine. And ignition points where abolished because they cook coils with ignition left on as where electronic ignition removes the charge from the coil when the coil is full. You have to think of the coil as a vet filled with water . the points when they open up it dumps the charge in to the ignition wire to the spark plug. now the time it has to refill this coil=vet is the time the points stay closed . the higher the rpm the less time the points stay closed so at high rpm the vet= coil dont gets filled enough and the force making the spark gets weaker , exactly the oposite is however what you would want with electronic ignition the vet is always the same full as the time to fill it dont gets deminished by the time the points stay shut like with the points system. This is why everyone abandoned points and why it wont ever come back with todays emission rules.
brapbrap8,
Apr 8, 4:13pm
Zoooom, that was the sound of Tulip17s sarcasm going over your head.
mugenb20b,
Apr 8, 4:18pm
This ^
tulip17,
Mar 23, 5:41pm
Bless him - the grand explanation intrade appreciated though - on the otherside of the coin the car with points still got you from a to b and you didn't have to work like 40 bastards to pay for all this hi-tech crap - escort mexico hauled with points as did many others.
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