rotodindon

Anyone had this issue with modded lnf? Everytime i start the engine on my swapd ss the coolant temp goes up to 250-260 farenheit even if the fan kicks in and then immediatly drop to normal temp....even sometimes when im cruising the temp will start to gu up around 220-230and then go back to normal temp but in some rare occasion...iv cjanged the thermostats for a new one and new long life coolant mixed 50/50 but it wont change a thing.....the car is Hptuned btw and swaped with 2.0t idk if this can help find the issue...hes got front mount intercooler hks blow off valve and stage 3 ceramic clutch

steelmesh

If you search about LNF coolant bleeding, you'll note there are problems when bleeding. With the Kappa platform (Solstice, Sky) LNF 2.0 models, one method is to remove the coolant reservoir and lift it up while the bleed nipple is exposed, it's near the upper rad hose.

rotodindon

Are Gm dealership aware if this issue

rotodindon

Perfect do i need to remove all of the coolant first or only the coolant that is in the reservoir to lift it up

tomj77

iTrader: (2)

I have never had an issue with filling coolant. Dont understand how people do. Here is what I do and it works every time I have to refill coolant when I drain it. Will help I'm sure.
First take off upper rad hose from engine and make sure its full. Fill till collant stops going down and sits in the hose where u can see it. Reconnect hose. Then take off the overflow hose from nipple on engine, full res and let it go down. Keep going till coolant comes out that nipple.put hose back on. Idle car for a few minutes then shut off for a few, full res to full line and repeat till it stops going down. Go for a drive, check level. Fill more if need. This has worked every time for me. Idk how people keep having issues. If you do it right, you won't airlock the system.

ECaulk

iTrader: (6)

I'm with you on not having an issue with filling the coolant. I do the same procedure except during the idling I leave the overflow cap off, to allow for quick addition so the overflow tank doesn't go empty.

tomj77

iTrader: (2)

Ya I do the same.

rotodindon

ok but do i need to drain all the coolant first and start from scratch? its full at the moment

ECaulk

iTrader: (6)

No, just let the car cool off and then open the overflow cap and then start it up.