[s-cars] Hot temp. shut down....

[Paul DAnneo]

Well I'm happy to be at home...
   
   
  I have a reacurring issue that I was hoping I had solved with the 1.8t coil swap, loss of boost under load. Well, it was worse this time. 
   
  It started as a small miss/ stumble under accelleration while starting a climb up a long grade. Back off a little and no problem. Accellerate and it gets worse. Check eng. lite. On , off, on, off again.
  Then no acceleration, only light on the pedal and idle. No boost? Right?
  So I pull over, let sit for 3-5 min, starts no problem, good boost. Couple of miles up hill and same issue, no boost, engine lite on and off. So pull over, sit, start, and drive again, several times. Finally over the summit and home free. But on a small incline to my street, same issue.
   So after a long cool down, she runs great. Full boost. 
   
  Is this the MM hose expanding with the heat and exposing a crack?
   
  As usual thanks in advance for any and all advice...
   
  Paul
  safe at home