Post by
emailingjpb »
https://forums.nicoclub.com/emailingjpb-u74708.html
Tue Feb 26, 2008 4:29 pm
Check the pressure on both your upper and lower hoses, you should be able to squeeze the hose and feel if there is pressure on either line. I had this same problem about a month ago and FREAKED out! I was also thinking it might be the head gasket. Sat in front of Autozone for like an hour squeezing hoses, and looking confused. I finally realized that the temp. needle would go all the way to hot before the thermo opened, then it would cool down, then heat back up again to hot, then cool down. Never did figure out the problem, but it went away. Its probably an air lock.