paulos Posted April 7, 2007 Report Share Posted April 7, 2007 ive just bought a s/h astra today but have noticed that the temperature shoots up once the car slows down and when sitting in traffic. the fan kicks in and cools it down, but not until its up to about 100, which seems a little high. does anybody know whether its possible to adjust it/ get one that will kick in quicker? cheers! ps. i know just about nothing to do with the workings of cars so forgive me if its a daft question! Quote Link to comment Share on other sites More sharing options...
taffygun Posted April 7, 2007 Report Share Posted April 7, 2007 It sounds like the thermostat is sticking, not opening when its supposed to, that would also be the cheaper option to remove/replace the stat. Failing that the next place I would look would be the water pump. HTH Quote Link to comment Share on other sites More sharing options...
muckybear Posted April 7, 2007 Report Share Posted April 7, 2007 ive just bought a s/h astra today but have noticed that the temperature shoots up once the car slows down and when sitting in traffic. the fan kicks in and cools it down, but not until its up to about 100, which seems a little high. does anybody know whether its possible to adjust it/ get one that will kick in quicker? cheers! ps. i know just about nothing to do with the workings of cars so forgive me if its a daft question! may sound stupid but mine does the same when it runs low on water i have a cav diesel other than that try thermo like the last kid said that would be the most cost effective way forward Quote Link to comment Share on other sites More sharing options...
marlin1 Posted April 7, 2007 Report Share Posted April 7, 2007 Hi Not a problem with your astra, early vauxhalls always run hot when stuck in traffic. Quote Link to comment Share on other sites More sharing options...
ROBLATCH Posted April 7, 2007 Report Share Posted April 7, 2007 ive just bought a s/h astra today but have noticed that the temperature shoots up once the car slows down and when sitting in traffic. the fan kicks in and cools it down, but not until its up to about 100, which seems a little high. does anybody know whether its possible to adjust it/ get one that will kick in quicker? cheers! ps. i know just about nothing to do with the workings of cars so forgive me if its a daft question! may sound quite dramatic but my experience with vauxhalls (i own one myself) and have done for around 15 yrs are prone and i mean prone to cylinder head gaskets blown. the newer models with the ecotech engines are,nt so bad though. my gamble would be the head gasket even if there isnt any oil in the water or vice versa i'v seen many and i mean many with the same problem HEAD GASKET Quote Link to comment Share on other sites More sharing options...
taffygun Posted April 7, 2007 Report Share Posted April 7, 2007 ive just bought a s/h astra today but have noticed that the temperature shoots up once the car slows down and when sitting in traffic. the fan kicks in and cools it down, but not until its up to about 100, which seems a little high. does anybody know whether its possible to adjust it/ get one that will kick in quicker? cheers! ps. i know just about nothing to do with the workings of cars so forgive me if its a daft question! may sound quite dramatic but my experience with vauxhalls (i own one myself) and have done for around 15 yrs are prone and i mean prone to cylinder head gaskets blown. the newer models with the ecotech engines are,nt so bad though. my gamble would be the head gasket even if there isnt any oil in the water or vice versa i'v seen many and i mean many with the same problem HEAD GASKET Won't that pressurise(sp?) the coolant system.. Quote Link to comment Share on other sites More sharing options...
marlin1 Posted April 7, 2007 Report Share Posted April 7, 2007 Worked Has Team Leader at Vauxhall Motors Luton from 1989 to 2002 till plant shut down.... Still run a Vauxhall. If your head gasket has gone you will know about it and will have to be towed home ? Quote Link to comment Share on other sites More sharing options...
markbivvy Posted April 7, 2007 Report Share Posted April 7, 2007 is there any water in the radiator. Quote Link to comment Share on other sites More sharing options...
ROBLATCH Posted April 7, 2007 Report Share Posted April 7, 2007 ive just bought a s/h astra today but have noticed that the temperature shoots up once the car slows down and when sitting in traffic. the fan kicks in and cools it down, but not until its up to about 100, which seems a little high. does anybody know whether its possible to adjust it/ get one that will kick in quicker? cheers! ps. i know just about nothing to do with the workings of cars so forgive me if its a daft question! may sound quite dramatic but my experience with vauxhalls (i own one myself) and have done for around 15 yrs are prone and i mean prone to cylinder head gaskets blown. the newer models with the ecotech engines are,nt so bad though. my gamble would be the head gasket even if there isnt any oil in the water or vice versa i'v seen many and i mean many with the same problem HEAD GASKET Won't that pressurise(sp?) the coolant system.. it can do yes but all vauxhalls hold presure in the header tank and sometimes can be mistaken for the head gasket. the only way to find out if i am crrect is to presure test it, but i would be 99% certain thats the problem and if i'm wrong i will eat my words. vauxhalls are noted for it. sorry forgot to mention go no further than the lo blo engine and the izuzu engine which vauxhall fitted. i know which i prefer from the two. Quote Link to comment Share on other sites More sharing options...
Lord Geordie Posted April 7, 2007 Report Share Posted April 7, 2007 Lack of oil can cause overheating to a degree also. Waterpump could be furred up Thermostat could be shot. LG Quote Link to comment Share on other sites More sharing options...
eagleye Posted April 7, 2007 Report Share Posted April 7, 2007 had the same problem changed the rad all scaled up problem sorted car back to normal eagleye Quote Link to comment Share on other sites More sharing options...
ronttuk Posted April 7, 2007 Report Share Posted April 7, 2007 when warm i would feel the radiator see if its same temp al the way from top to bottom it could be a blocked rad it the temp varies from top to botom Quote Link to comment Share on other sites More sharing options...
stalker1 Posted April 7, 2007 Report Share Posted April 7, 2007 bear in mind with out seeing the car its hard to be 100%, but change the thermostate this will solve your problem. temp on the astra tends to run up to the last white mark before the red then the fan cuts in and cools it down, all you need to do is change the thermostate, and jobs a good one, Quote Link to comment Share on other sites More sharing options...
eagleye Posted April 7, 2007 Report Share Posted April 7, 2007 take the thermostat out if it stops overheating fit a new one if it still overheats without one probably the radiators blocked eagleye Quote Link to comment Share on other sites More sharing options...
SNAKEBITE Posted April 8, 2007 Report Share Posted April 8, 2007 When it is running squeeze the coolant pipes, if they are rockhard then you are presurising the system (head gasket). Can you still get thermostats with different opening temps? Also is there a Winter /Summer setting on the car anywhere? Is the fan rotating freely? I had an old Sierra (Inline engine with themoviscos fan, different set up I know) that was overheating. After stripping the head down etc I found that the fan housing had slipped and was rubbing on the fan inhibiting the rotation. May not be an help might spark off other ideas which are more useful. Quote Link to comment Share on other sites More sharing options...
ROBLATCH Posted April 8, 2007 Report Share Posted April 8, 2007 Worked Has Team Leader at Vauxhall Motors Luton from 1989 to 2002 till plant shut down....Still run a Vauxhall. If your head gasket has gone you will know about it and will have to be towed home ? sorry mate but i beg to differ. i have just in the last 3 weeks had one fitted to my astra estate 1.7 t.d lo blo, and i managed to get the 20 miles back home Quote Link to comment Share on other sites More sharing options...
codling99 Posted April 8, 2007 Report Share Posted April 8, 2007 could also be a termostatic switch. Quote Link to comment Share on other sites More sharing options...
Bigbob Posted April 8, 2007 Report Share Posted April 8, 2007 Older astras always overheat in traffic im on my 3 rd one and its excactly the same ,when your sitting in traffic open your front windows a bit and put the heater on full it cools down in no time and no exspensive repairs Quote Link to comment Share on other sites More sharing options...
markbivvy Posted April 9, 2007 Report Share Posted April 9, 2007 is this sorted yet please. Quote Link to comment Share on other sites More sharing options...
paulos Posted April 18, 2007 Author Report Share Posted April 18, 2007 thanks everyone, it seems to be a bit better now, there appeared to be air in the hose from the water tank which was stopping it getting through so ive got that sorted out now. ill keep a check on it though cheers Quote Link to comment Share on other sites More sharing options...
al4x Posted April 19, 2007 Report Share Posted April 19, 2007 Worked Has Team Leader at Vauxhall Motors Luton from 1989 to 2002 till plant shut down.... Still run a Vauxhall. If your head gasket has gone you will know about it and will have to be towed home ? sorry mate but i beg to differ. i have just in the last 3 weeks had one fitted to my astra estate 1.7 t.d lo blo, and i managed to get the 20 miles back home I've driven hundreds of miles in Vauxhalls with failed head gaskets as our vans used to go every 40K without fail. I'd say first check your water, if its low top it up and see if it stops the problem. If it does then thats that. If it doesn't check the water if its used it then odds are Head gasket problems. If its not used it then check the thermostat and rad Quote Link to comment Share on other sites More sharing options...
SNAKEBITE Posted April 19, 2007 Report Share Posted April 19, 2007 Very topical this, a chap at work has just been quoted £750 for a head gasket on his "P" reg Astra. But that does include skimming the head. Quote Link to comment Share on other sites More sharing options...
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