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Old 02-03-2007, 04:04 PM   #1
ihavebettersound
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JBP Cobb Stage II

Default drained coolant, how much needed to fill?

long story short, i drained coolant from the point where you install the engine block heater. i put about a gallon in the radiator, turned my car on and let it heat up, but my heater is blowing cold air. anyone know how much coolant is needed?
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Old 02-03-2007, 04:27 PM   #2
dibblejr
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The Owners Manual has all the answers but I will help you. This is the only PROPPER METHOD to add coolant and purge air from the system

AT NO TIME OPEN THE RADIATOR CAP

Use propper 50/50 mix for all coolant resevoirs.

1) Fill the coolant resevoir (plastic bottle) to the fill line (put cap on)
2) Fill the Turbo Coolant Reevoir (small metal right in front of turbo) (put cap on)
3) Start car and turn on heater (high)
4) Hold RPM's at 3000 for 10 minutes ( even if temp = H)
5) Turn engine off and leave key to ACC (keep heater on)
6) Let engine cool to "C"
7) Repeat steps 1-6 until no coolant is required to fill resevoirs

While replacing my turbo took 45 minutes to complete the process.

Like I said above DO NOT open radiator cap at anytime, to do so will negate everything you are trying to do.
Any other ways mentioned to burp the system on our cars are Shade Tree Mechanics.

Jay-R
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Old 02-03-2007, 04:32 PM   #3
ihavebettersound
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ok ill give that a try. thanks a lot.
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Old 02-03-2007, 05:37 PM   #4
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The owners manual has fluid capacities??? OMG!!!
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Old 02-03-2007, 07:16 PM   #5
ihavebettersound
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Default

ha who would have thought.

that worked perfectly, thanks again.
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Old 02-04-2007, 08:17 AM   #6
dibblejr
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Glad you got it.

Jay-R
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Old 02-20-2007, 01:13 PM   #7
cornerbuddy28
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Default

just curious, why does the heat need to be on high? just to help keep it from overheating while you're doing this?
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Old 02-20-2007, 01:34 PM   #8
dibblejr
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For the recirculation effect throught he heater core. It just speeds the process up, this step is used in every car. It also in most cases lower the engine temp, it will not prevent a car from over heating.

Jay-R

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Originally Posted by cornerbuddy28 View Post
just curious, why does the heat need to be on high? just to help keep it from overheating while you're doing this?
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Old 02-20-2007, 02:19 PM   #9
cornerbuddy28
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well coolant flows through the core whether you have the fan on or not, I don't see why having it on will help this go any faster. If it's off, the engine
will come to temp faster. I'm not debating whether those directions are correct or not, that's straight out of the manual, I just don't see why that is necessary.

I'm just trying to figure out if I might have to change something on my car because its a 95 Impreza with an 02 wrx motor and an 04 STi dash. I didn't get any of the heater controls for the center panel but instead made my own face plate out of aluminum and the heater is controlled by a switch. on or off so if there's something in the electrical system that needs to be switched on besides just the heater fan relay then I may have a problem.
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Old 02-21-2007, 11:08 AM   #10
SubieRon
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i bought one gallon of the Subaru coolant. Am i going to need another gallon for a flush?
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Old 02-21-2007, 11:33 AM   #11
dibblejr
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Absolutely. I dont buy suby stuff (overpriced) I buy Prestone Pre Mixed 50/50.
Ensure you follow the instructions I posted to get the system burped Properly.

Jay-R

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Originally Posted by SubieRon View Post
i bought one gallon of the Subaru coolant. Am i going to need another gallon for a flush?
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Old 02-21-2007, 11:45 AM   #12
SubieRon
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damn...it is overpriced but i was reading somewhere about how our components are made of aluminum and stuff so i wanted to stick with the OEM stuff. time to return this thing. i think i paid like $25 for it, theres no way im paying another $25. I could just let the dealer take care of the flush for the price of 2 gallons.

Thanks
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Old 02-21-2007, 04:53 PM   #13
WRX_JUNKi
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Regardless of what I use for the main antifreeze (Prestone, PEAK, OEM), after flushing, I would pour the conditioner and the Red Line Water Wetter prior to filling. Correct?
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Old 05-19-2007, 06:53 PM   #14
_sti_05
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question but after removing my fmic a while back, i never put the coolant resevoir which im guessing is the one next to the radiator back on, i could never find it. is this bad, i just have the hose hanging loose.
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Old 05-20-2007, 03:40 PM   #15
Samurai Jack
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If I understand you correctly, you no longer have the coolant overflow tank in your car, which was probably removed to make way for your FMIC.

Without it, when the coolant expands due to heat, which obviously will happen when the engine warms up, any "excess" coolant in the cooling system will flow out to the ground instead of into the overflow tank.

This results in an overall loss of coolant, which means besides polluting the environment, you will be spending more money on additional coolant to replace that coolant which flowed out onto the ground.

And, if you lose enough coolant and don't realize it, your engine will overheat. How bad it overheats, and for how long, will determine the amount of possible engine damage you will ultimately have.

If the coolant went to the overflow tank, it would return to the engine when the engine and coolant cooled.
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Old 05-21-2007, 12:54 AM   #16
_sti_05
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i see, thank you very much. I will be ordering a replacement asap.
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