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coolant system problem
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Old 10 Dec 2008, 05:09 PM   #1 (permalink)
Fresh Scooby
Join Date: Sep 2007
Location: derbyshire
Posts: 11
coolant system problem

hi all, i posted a thread on here a few weeks ago regarding problems with my coolant system, i am driving the car for a length of time the temp needle never goes above the normal half way fans blow hot air and car drives spot on, the problem is my cooling fans kick in and seem to stay on, i get home pop the bonnet and the rad is cold on the right hand side as you face the car and the bottom hose is cold, the system is pressurised, i did a coolant change last friday and left the car ticking over for over an hr with fans on full and header tank cap off, the coolant fans were working perfectly coming on and off and rad was hot as was the bottom hose, i was convinced all the air was out and when i drove the car the day after i found that the fans were on again, somebody please help with this problem it is driving me mad!!!!

Last edited by nick-569; 10 Dec 2008 at 05:22 PM.
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Old 10 Dec 2008, 05:58 PM   #2 (permalink)
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Join Date: Jul 2008
Location: Cork, Ireland
Posts: 7,475
Re: coolant system problem

Warning!!!!!!The radiator is of the pressurized type. Do not
attempt to open the radiator cap immediately
after the engine has been stopped or while engine hot................
1) Lift up the vehicle.
2) Remove the under cover.
3) Place a container under drain pipe.
4) Loosen and remove the drain plug to drain engine
coolant into the container.
5) For quick draining, open the radiator cap.
Be careful not to spill coolant on the floor.
6) Drain the coolant from reservoir tank.
7) Tighten the radiator drain screw securely after
draining coolant.
8) Slowly pour the prepared coolant from radiator
filler port to neck of filler, then pour into the reservoir
tank up to “FULL” level.
Coolant capacity (fill up to “FULL” level)
Non-turbo AT model:
Approx. 6.9 L (7.3 US qt, 6.1 Imp qt)
Non-turbo MT model:
Approx. 7.0 L (7.4 US qf, 6.2 Imp qt)
Turbo AT model:
Approx. 7.6 L (8.0 US qt, 6.7 Imp qt)
Turbo MT model:
Approx. 7.7 L (8.1 US qt, 6.8 Imp qt)
The SUBARU Genuine Coolant containing antifreeze
and anti-rust agents is especially made for
SUBARU engine, which has an aluminum crankcase.
Always use SUBARU Genuine Coolant,
since other coolant may cause corrosion.
9) Securely install the radiator cap.
10) Run engine for more than five minutes at 2,000
to 3,000 rpm. (Run engine until radiator becomes
hot in order to purge air trapped in cooling system.)
11) Stop the engine and wait until coolant temperature
lowers. Then open the radiator cap to check
coolant level and add coolant up to radiator filler
neck. Next, add coolant into reservoir tank up to
“FULL” level.
12) After adding coolant, securely the install radiator
and reservoir tank caps.
Try that that should fix it it worth a try replaced my coolant in my sti v6 Ra when i done the water pump and had no problems with it..................
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