more questions!
 

I change the radiator today,after I put the new one in I did a test drive on the high way, but the coolant temperature goes high after 9 min about 60 miles/hour so I shut it down and restart it again, the Tem. drop to half and when I start drving it, Temperture goes high again and I DON'T have heater, I used to,I have heater before I change the radiator.

I touch the radiator, it's hot so it means the thermosta is good but the problem is the coolant in the raservior is cold....

I have the same problem
 

chinesedawn please let me know the results i have the same problem with my supra i check all the vac houses let me know thank you:sadwavey:

the problem is timing!
 

I fix the problem, my car's timing is 4 degree BTDC which should be 10 degree BTDC, after I set the the timing the car runs great.

Your engine temps should drop too.

Yes Boss！ My engine tem. drop to normal. But actually the main reason cause my Engine Tem. go high is I lose too much coolant when I change the radiator:crazy: ....

Finally my car runs great.......But the heater start to bother me:crazy2: ....It goes warm and cold with engine load, when I driving it, the heater proforms really good but when I let my car at idle my heater won't take care of me anymore......

There's a valve in the heater line on the passenger side. It's mounted on the firewall by the charcoal canister. Follow the heater hose from the firewall to it. There's a VSv with a metal bell with a lever that runs to the valve. Run the vacuum line which runs along the firewall to the VSV straight to the bell and see if the lever moves up. It's a common failure point. I'll see if I can find a diagram.


Here you go:
Attachment 2780