 urgent help! Cooling system problems. |
 Oct 24, 2012 - 1:26 AM
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Enthusiast Joined Aug 16, '11 From Australia, Vic, Portland Currently Offline Reputation: 0 (0%)  |
I recently had my Celica with a 5sfe taken in to get a new radiator. problem being now is i think there is air traped inside. Tried Numerous times to bleed it.. what happens is when i take the car for a long drive and shut it down it dumps about a litter of coolant out the expansion tank and it also dose sometimes when the car is running.. Temp is normal according to the gauge and the car runs fine otherwise. I've taken it back to the mechanics and they failed to fix the problem. What's worse is i had plans to go on holidays and drive this car there. witch is less than a week away!
My bleeding procedure is the following so correct me if Im wrong. Turn the heater to full hot. (fans off). Start the car with the rad cap off. using a small funnel wedged in there i top off the radiator. I then rev the car as it seems to help purge the air out. Wait for the bubbles to stop and shut the car off and refit the rad cap. please help. |
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Oct 24, 2012 - 8:25 PM
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Enthusiast  Joined Mar 3, '05 From Richmond, B.C. Currently Offline Reputation: 0 (0%) |
Couple items which spring to mind in regards to bleeding the coolant system.
First is to have the car with the front end elevated, as this can encourage the air bubbles to rise to the radiator cap position. If there are any coolant passages which are higher than the outlets you can get trapped air bubbles. The second is ensuring a proper level in the coolant reservoir before you begin the bleeding procedure. It should be filled to the COLD mark before the engine is warmed (and before you elevate the front of the car). You want to prevent the coolant system from sucking up air as it cools down and the coolant contracts. The third, and IMHO the most probable issue, is to check that you have a working, properly sized and correctly pressurized radiator cap. The radiator cap is what keeps the system under pressure; if the pressure is too low the coolant will boil and introduce bubbles into the system. Boiling also means the volume of the coolant (and now gas) in the system expands rapidly, which then pushes out into the overflow reservoir. |
Posts in this topic
KaneO urgent help! Cooling system problems. Oct 24, 2012 - 1:26 AM
txnight if you can afford it there is a funnel out there t... Oct 24, 2012 - 1:33 AM
KaneO QUOTE (txnight @ Oct 24, 2012 - 2:33... Oct 24, 2012 - 1:45 AM soulshadow they replace the thermostat? Sounds like your gett... Oct 24, 2012 - 1:56 AM txnight ok using the funnel that you have, try this.
Fill... Oct 24, 2012 - 2:05 AM Special_Edy A blown headgasket will cause air to leak into the... Oct 24, 2012 - 8:14 AM trdproven ^ yea if you use a funnel method for example and f... Oct 24, 2012 - 6:23 PM Toyo6g Well I have the same problem.... Kind of.... The r... Jul 20, 2013 - 10:30 PM Galcobar Check the radiator cap. As for the radiator fan, y... Jul 22, 2013 - 2:15 AM Toyo6g I alredy change the radiator cap.... Now I think ... Jul 24, 2013 - 12:22 AM bsamps4 QUOTE (Toyo6g @ Jul 24, 2013 - 12:22... Jul 24, 2013 - 7:34 AM Toyo6g Buy when I turn the key the rad. Fan comes in.... ... Jul 24, 2013 - 11:23 AM Galcobar QUOTE (Toyo6g @ Jul 24, 2013 - 9:23 ... Jul 26, 2013 - 9:33 AM bsamps4 Switch may have failed in the open position, or th... Jul 24, 2013 - 12:55 PM Toyo6g But it does... Ill try to buy this sensor today an... Jul 24, 2013 - 1:04 PM trdproven radiator cap can also overflow the bottle
blown h... Jul 25, 2013 - 7:13 PM Toyo6g I think that the problem is the head gasket.... It... Jul 25, 2013 - 10:44 PM delusionz complicated bleeding proceedures is bull****, fill... Jul 25, 2013 - 11:00 PM Toyo6g update..... Blown head gasket.... there was a shor... Aug 1, 2013 - 11:40 PM |
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