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Discussion Starter · #1 ·
Hello,
Thank you for allowing me to join, I have a leak coming from where I believe the supercharger coolant tank. The coolant only comes out when i really get on the car, is there anything I should look for? any and every recommendation would be really appreciated.

2019 Hellcat Redeye
 

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Hello,
Thank you for allowing me to join, I have a leak coming from where I believe the supercharger coolant tank. The coolant only comes out when i really get on the car, is there anything I should look for? any and every recommendation would be really appreciated.

2019 Hellcat Redeye
So the level imaged is significantly low, are you filling it to the fill spot, running the car hard and then seeing it dissipate to that level? You could have air somehow in the line and its pushing the coolant out, but that tank is really an overflow reserve to pull when needed, it shouldn't change a whole lot as a majority of the coolant for the blower is already inside the blower.

Maybe turn the car on, let it idle til it gets to temp and have someone watch the tank while you rev. Any wet spots under the car when your done? Is the area near the tank wet once you're done? Want to ensure its leaking and not burning or some other freak thing.
 

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Discussion Starter · #3 ·
So the level imaged is significantly low, are you filling it to the fill spot, running the car hard and then seeing it dissipate to that level? You could have air somehow in the line and its pushing the coolant out, but that tank is really an overflow reserve to pull when needed, it shouldn't change a whole lot as a majority of the coolant for the blower is already inside the blower.

Maybe turn the car on, let it idle til it gets to temp and have someone watch the tank while you rev. Any wet spots under the car when your done? Is the area near the tank wet once you're done? Want to ensure its leaking and not burning or some other freak thing.
I am filling it to the fill line, have not seen any coolant under the car. I only see the fluid by tank splattered everywhere.
 

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I am filling it to the fill line, have not seen any coolant under the car. I only see the fluid by tank splattered everywhere.
cap could be failing, try to ensure its tight, and remove it when cold to see if the o-ring under it is not dry or missing. If its newish just take to a dealer as its under warranty if unmodified.
 

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no i didnt.
that could be the issue. when you get time, find a funnel with a similar diameter as the inside hole of the reservoir so it can snuggly fit in there. You will leave the cap on the tank off obviously, put the funnel in there and then add a bit of coolant, let the car run and run and eventually it should open the flow and allow the coolant to move. the air should go through the open spot and bubble, thus leaving the system. the little bit of coolant in the funnel you have should fall into the tank now that there isn't any air taking up space.

they make a kit that has adapters for any tank so you dont make a mess but my way works well without a mess. heres a youtube video for some visuals;

How To Bleed or "Burp" Air Out Of Your Car's Cooling System To Prevent Overheating! DIY - YouTube

skip to around 5:00

my guess is you didn't burp it, air pressure is causing the coolant to blow out of the overflow and all over your engine bay.
 

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Discussion Starter · #9 ·
that could be the issue. when you get time, find a funnel with a similar diameter as the inside hole of the reservoir so it can snuggly fit in there. You will leave the cap on the tank off obviously, put the funnel in there and then add a bit of coolant, let the car run and run and eventually it should open the flow and allow the coolant to move. the air should go through the open spot and bubble, thus leaving the system. the little bit of coolant in the funnel you have should fall into the tank now that there isn't any air taking up space.

they make a kit that has adapters for any tank so you dont make a mess but my way works well without a mess. heres a youtube video for some visuals;

How To Bleed or "Burp" Air Out Of Your Car's Cooling System To Prevent Overheating! DIY - YouTube

my guess is you didn't burp it, air pressure is causing the coolant to blow out of the overflow and all over your engine bay.
i will give that a try, thank you for very much for the information.
 

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Discussion Starter · #11 ·
that could be the issue. when you get time, find a funnel with a similar diameter as the inside hole of the reservoir so it can snuggly fit in there. You will leave the cap on the tank off obviously, put the funnel in there and then add a bit of coolant, let the car run and run and eventually it should open the flow and allow the coolant to move. the air should go through the open spot and bubble, thus leaving the system. the little bit of coolant in the funnel you have should fall into the tank now that there isn't any air taking up space.

they make a kit that has adapters for any tank so you dont make a mess but my way works well without a mess. heres a youtube video for some visuals;

How To Bleed or "Burp" Air Out Of Your Car's Cooling System To Prevent Overheating! DIY - YouTube

skip to around 5:00

my guess is you didn't burp it, air pressure is causing the coolant to blow out of the overflow and all over your engine bay.
awesome, thank you.
 

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If burping doesn't help, get some of your wife's clothes she has not worn in 15 years and, with her permission, wrap the reservoir with the cloth and run for a short time. Then look for the wet spot which will show the source of the leak.
 

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If burping doesn't help, get some of your wife's clothes she has not worn in 15 years and, with her permission, wrap the reservoir with the cloth and run for a short time. Then look for the wet spot which will show the source of the leak.
smart idea, but what if this occurs to someone who isn't married?

like, would I have to go find some girl to trick into wearing a ring I buy, just to be able to fix my coolant leak? :p
 

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Or you have failing intercooler blocks in the supercharger and it is leaking coolant down into your motor.
This happened to me, very small leak in a cooling block. You won’t find coolant in the oil or smell it in the exhaust. Under Boost is over pressurizing the system then when under vacuum it’s getting pulled back out. Also when shut off it can leak into a cylinder and hydro lock a cylinder and ruin your motor, bend a rod, etc. Get it checked ASAP!! Test to try is after your done running the car when shut off loosen the cap to depressurize the system, tighten cap before running again. If dropping level slows down or goes away that’s your culprit for sure, leaking cooling radiator block in the SC.
 

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Yup, just do a pressure test. find it easily. If it was going into the motor, you would have white smoke that smells sweet. A coolant leak smells sweet, likely it is one of those clamps if you had it apart. Get a pressure tester at harbor freight and do it your self, cheaper than if you paid someone to do it.
To check the cooling blocks, you will need to pull the supercharger lid.
 
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Yup, just do a pressure test. find it easily. If it was going into the motor, you would have white smoke that smells sweet. A coolant leak smells sweet, likely it is one of those clamps if you had it apart. Get a pressure tester at harbor freight and do it your self, cheaper than if you paid someone to do it.
To check the cooling blocks, you will need to pull the supercharger lid.
Mine was leaking over cylinder 2, no smoke no smell no nothing. Found this when I removed the blower and new exactly where it was coming from, pin hole in fin above it.
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