Over Heating Problem Need Help

[tommot2020]

I replaced my head gasket months back while i had the head off i had it resurfaced in a shop to clean it up........ got everything put back together with no problems..... a few months after that with no problems...... while driving to oklahoma (made a few trips within the time) it started overheating again.... didnt no what it was i got my exhaust pipes replaced and co2 sensor replaced(needed to be done anyway) it stoped overheating for a couple days until i was driving back to missouri and it started overheating again...... i stoped driving it for about 2 months then when i was back for christmas i started her up.......... no problems...... the entire weekend until i was headed back to oklahoma again it started overheating again..... i replaced the fuel injectors and fuel filter but still overheating....... i had a compression check done and it is pretty high as far as i can tell..... its a straight 4.... 22RE..... running about 200 in each cylinder...... does any1 have any ideas?? next step if nothing will to replace the head.... but the is $$$$ i dont have........ any suggestions or info would be much appreciated thank you much

[Jayota]

200 sounds high to me (somebody correct me if im wrong), are you sure its not running lean?

So what did you do with the cooling system? Got a fresh thermostat (dealer item please, the dual valve thermos are best) and water pump? How about the coolant iteself, what did you use, what mixture?

Also are you sure you got all of the air out of the cooling system when you filled it up?

When does it overheat? In traffic or on the hwy?

Be vary careful when overheating these motors, the aluminum head can crack or warp if it gets too hot.

[tommot2020]

200 is high im almost possative if i remeber right it should be runnin bout 160........ i got new fuel filter and injectors that i put in a couple weeks ago with no help....... i replaced thermistat and water pump, oil pump, radiator......... as far as coolent i have prestone 50/50 mix........ and its not straight overheating it the gauge is just jumping up and down it starts spiking as soon as i start her up......... and its constant..... i am very worryed that i am going to end up warping or cracking the head and i have really run out of ideas................... Thanks much

[Jayota]

Sounds like temperature gauge overshoot.

A toyota dual valve thermostat will fix that (was designed to fix it).

Make 10000% sure that all the air is out of the system. Do you happen to hear rustling water in your dash when you first take off in the morning?

[tommot2020]

ok i will try that out thank you very much and no about hearin water but im usually not listening 4 that............ i will try the thermistat thank u much