JDMSoarer5

Recently I changed my HG to the 2jzgte one and ARP head studs. After putting my 2jzge back to together, I started having idle problems and coolant started bubbling back in the overflow reservoir after driving for about 20 mins. I have been all over the forums looking to see if anyone has had this problem.

lexforlife

iTrader: (7)

possible and likely improper install and /or trq of head studs..did completely burp/purge system of air bubbles as jz motors are a pain in the *** to burp

soarer13oy

iTrader: (13)

i would have to agree with lexforlife.

Ali SC3

iTrader: (10)

did you let it warm up with the heater on and the coolant cap off (make sure its cold before you try and open it lol).
this should let the air out of the system, and make sure the overflow is not empty or you may just pull back in more air after all your hard work.

1JZPWRD

iTrader: (59)

Try and rebleed the system. Jack up the front as high as possible and put heater control on floor and in the high position for fan. Let it bleed for at least 20-30 minutes and see if the problem still persists.

m1k3yg

You might have a ruptured heater hose, know from experience here

Vrank

iTrader: (4)

Idle problems make it sound like something went wrong on the install. Why did you do this gasket swap in the first place? I've seen cases where people detorqued the head in the wrong manner when doing something like this and warping it without knowing and having this problem when putting it back together.