PDA

View Full Version : Would a faulty thermostat....


Laine_16v
22-01-2006, 22:25
Lead to the car overfueling?

My engine is always "over cool", because the thermostat is stuck, the water temp gauge only ever starts rising when you leave it idling.

Because its always cold does the ECU think the car is cold and stick more fuel in it? Im not really sure how it works, or if im talking BS.

Cheers.
BRUN
23-01-2006, 01:40
sounds about right to me mate, change the stat
Laine_16v
23-01-2006, 08:46
Yeah will do, my car does seem to drink petrol when you rag it :shock: .

Like even more petrol than when i ragged our 4 litre jeep :P
Laine_16v
23-01-2006, 14:04
Can someone confirm that lots of petrol usage can be related to a dodgy thermostat?
FlamingMonkey
25-01-2006, 11:37
I'd be interested in knowing too, my thermostat is getting changed on Friday, I've got 160 miles out of 30quid this week!
Laine_16v
25-01-2006, 12:48
Juts ordered a new termostat and gasket from halfords, should be here this afternoon.

£12.87 :P
FlamingMonkey
25-01-2006, 12:56
Juts ordered a new termostat and gasket from halfords, should be here this afternoon.

£12.87 :P

Mines 15 i think from renno
Laine_16v
28-01-2006, 14:03
Changed my thermostat today so ill follow petrol useage carefully.

LOL when i went to swap my thermostat i opened the stat housing to find NOTHING there. There was no thermostat :shock: .

Hope no damage has been done
Coops
29-01-2006, 12:35
WTF? no thermostat!!!! thats a new one!! no thermostat tho is same as one thats fully open all the time cuz its knackered so am sure no other issues wud of been associated with that!!but still, thats mad! :shock:
Laine_16v
29-01-2006, 12:40
Lol, now the new one is in the car heats up nicely, i have noticed oil temperautre sits at about 100 degrees now.

Used to only get upto about 60 max before.

Just topped her upto half a tank, lets see how many miles i can get out of her now.
Coops
29-01-2006, 12:41
mines same as that, water temp bout 1/2 way n oil at 100!spot on i think!!
BRUN
29-01-2006, 14:02
should be a lot better now
stew
29-01-2006, 19:04
i changed mine today because the temp kept fluctuating between 1/3 and 2/3 in 1 minute intervals when warm and driving at a steady speed.

no improvement....still does it! grrrrr

any suggestions?

It warms up ok, fan kicks in when it should, oil temp is fine......
Laine_16v
29-01-2006, 19:06
Took my car for a rag this afternoon, petrol usage looks ALOT better. Barely used any.

But then again i always seem to go to my car in the morning and it never seems to have as much petrol in it as it did the night before :P
Laine_16v
29-01-2006, 19:06
i changed mine today because the temp kept fluctuating between 1/3 and 2/3 in 1 minute intervals when warm and driving at a steady speed.

no improvement....still does it! grrrrr

any suggestions?

It warms up ok, fan kicks in when it should, oil temp is fine......

Faulty temp sender?
Coops
30-01-2006, 00:22
laine, mines the same! swear some tramp swings by of a night with a straw n drinks me petrol!! :lol:
BRUN
30-01-2006, 00:36
i changed mine today because the temp kept fluctuating between 1/3 and 2/3 in 1 minute intervals when warm and driving at a steady speed.



mines very similar to this mate with a brand new Renault stat, apparently its normal

i drive on the motorway every day and at a steady speed on there thats what it does, gets up to 2/3 then drops to 1/3 etc etc

kind of settles eventually at 1/2 way but it never settles completely just takes longer to go up to 2/3 mark, my cooling system is very clean aswell and the radiator isnt that old, apart from the heater matrix im spot on in that dept