RedSC

iTrader: (3)

well okay i own a 1994 lexus gs300 and i just recently changed the headgasket on the car, cars thermostat has been removed too and radiator hoses have been changed, but the car keeps moving up when im stopped and when i go the needel drops back down again sometimes when im stopped it doesnt move i dont get it, the water pump seems like its been changed but im going to change the water pump asap does anyone think of anything else it could be thanks

boostedGS

iTrader: (26)

did you make sure you got all the air out of the coolant system?

RedSC

iTrader: (3)

how would i take all the air out of the cooling system?

YupImJOee

burp it, the way me and my bro did it when we had old supras, we jacked up the front end, took off the radiator cap, and just ran the car for a few minutes.

check your radiator cap. i had a few faulty radiator caps that would cause the temp to fluctuate.

Pipe

Does anyone know what will happen if I removed my thermostat?

BarberMike

Your car has coolant running continuously when you remove the thermostat but I just replaced mine, only $15 to fix.

With the car off, check you fan clutch by spinning the fan, if it spins freely you probably need a new one, if it barely spins it's fine.

Pipe

I changed mine , Before i was not getting much heat inside but the temp guage was fine , i noticed the upper hose was hot and the lower hose was still cool and it was easy to squeze by hand . I changed the thermostat and the heat and noticed the lower hose stiff .