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Topic: Thermostat (Read 556 times) |
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ChrisF
Full Member
All the Granny's now the best 98 2.3 16v Ultima
  
Posts: 136
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Is the thermostat difficult to replace
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Kjetil S
Senior Member
2001 BMW 520iat
Posts: 1419
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Re: Thermostat
« Reply #1 on: Oct 18th, 2007, 9:40pm » |
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On the 2.3? Takes 10-15 minutes. Remove the air intake hose (disconnect it from the throttle body and air filter box), and open the thermostat housing.
Edit:
there is probably a pdf showing how to do it somewhere on the site. I'm too lazy to check right now 
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http://uncyclopedia.org/wiki/Norway
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Jonnycab
Senior Member
Former owner of 2.3 Ultima Facelift saloon
Posts: 3900
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Re: Thermostat
« Reply #3 on: Oct 19th, 2007, 1:09am » |
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You don't have to drain the whole cooling system (as it says in the instructions), or remove the air intake hose.
I usually just pull off the small hose that goes into the expansion tank from the top rad hose & shove a length of tubing into it & siphon the coolant off until it stops flowing from the tubing. This brings the coolant level down to about the T-stat level, so when you remove the housing there should only be minimal coolant loss.
Even if you didn't siphon the coolant out, you would only loose about 1 1/2 litres of coolant by removing the T-stat....although it would soak the belt tensioner spring underneath 
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mr._floppy
Junior Member
Posts: 100
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Re: Thermostat
« Reply #4 on: Oct 19th, 2007, 6:32pm » |
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Watch them long thin 10mm boltheads that secure the plastic stat housing, this will be the first time they will have been disturbed since the car was built and rust will have set in.
A few posters have reported them shearing off, leaving one up poo stream without a suitable means of propulsion. 
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