TDI_Nate_
Well-known member
- Joined
- Apr 30, 2018
- Location
- Central PA
- TDI
- 2012 Jetta Sportwagen TDI Black Uni, Non-sunroof, 6-speed
Hi all,
So my Rocketchip stage 4 tuned ALH has been making coolant disappear for sometime now but very very slowly. However last night I think we had something happen to speed it up but I'm not sure what. I know I'm running boost close to lifting the head, 24-25psi, but I have soot clogging vanes issues in the winter where it'll spike up to 27ish or higher psi although I back right out of it when that happens. I do not have ARP head studs as a side note. But what would cause coolant to be pushed out of the expansion bottle overflow tube? I believe that is where it all went/came from upon inspection (also brand new coolant bottle). In just an hour of driving and only flogging it like twice it emptied my expansion tank. Oil is not milky or frothy, coolant is not sooty or black, also within last few months I refreshed the coolant with new VW g13 (although in the three months I've had my new coolant bottle it's gotten darker and maybe dirtier?) Car still runs great, pulls hard, makes 24-25 psi all day in any gear. Do we think maybe it's head gasket and ARP time or maybe another issue. I'll be pressure testing the coolant system and cylinders/head this weekend. Also side note it is fully deleted so no egr cooler or anything.
Thanks
So my Rocketchip stage 4 tuned ALH has been making coolant disappear for sometime now but very very slowly. However last night I think we had something happen to speed it up but I'm not sure what. I know I'm running boost close to lifting the head, 24-25psi, but I have soot clogging vanes issues in the winter where it'll spike up to 27ish or higher psi although I back right out of it when that happens. I do not have ARP head studs as a side note. But what would cause coolant to be pushed out of the expansion bottle overflow tube? I believe that is where it all went/came from upon inspection (also brand new coolant bottle). In just an hour of driving and only flogging it like twice it emptied my expansion tank. Oil is not milky or frothy, coolant is not sooty or black, also within last few months I refreshed the coolant with new VW g13 (although in the three months I've had my new coolant bottle it's gotten darker and maybe dirtier?) Car still runs great, pulls hard, makes 24-25 psi all day in any gear. Do we think maybe it's head gasket and ARP time or maybe another issue. I'll be pressure testing the coolant system and cylinders/head this weekend. Also side note it is fully deleted so no egr cooler or anything.
Thanks