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96 EJ22 overheating after tbelt change


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I did the search and thats how I filled the raiadtor the sencond time.

 

I just did a Tbelt job myself .

Belts , pulleys. water pump, Thermostat.

Everything went smooth.

I filled the radiator and lets it run with cap off until the fans came on.

Then let it sit over bite and topped it off.

 

Started it up today and drove the freeway to work.

Looked in rearview mirror and saw whitesmoke coming out from under the car.

Looked at thermostat and it was on the H.

Noticed no hot air coming from vents.

Popped the hood and noticed the lower radiator hose was cold and also sucked in, like a vacumn.

Released the pressure from the raiator by way of rad cap and that relieved the lower radiator hose being sucked in.

 

Started car and limped it home.

I had to pull over numerous times to let it cool as i didnt want it to OVERheat.

 

Pulled in the garage and drained the fluid again.

This time I followed the directions found here in USMB.

 

Car idled great and didnt overheat until........

I got on the hwy and it got almost up to the H again.

Im getting hot air from the vents and blowing the fan cools the engine.

Im not smoking out the back.

Upper hose is hot.

Lower hose is cold.

Radiator cap is cold.

Allthe lines going to the heater coil are warm.

But the upper radiator hose you can hear the water boiling.

 

Whats up???

Tstat seemed good and fluid was added correctly.

FYI - I did all the work myself.

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I drained the radiator via lower hoses.

I then tilted the rear of the vehicle up and drained the block from the top hose.

Then I removed the thermostat and drained there.

I used a aftermarket thermostat that came with my Tbelt kit.

Ive used these kits in the past and also installed the water pump from the kit aswell.

put the car back on the ground and then filled the block thru the upper hose then installed the hose.

Then I slowly filled the radiator thru the cap.

Started the car for 1 fan cycle and then reinstalled cap and drove.

 

Now the upper hose is warm , lower is cold and it sounds like its bubbling in the upper hose and tries to overheat.

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Also maybe double check the thermostat for full opening in nearly boiling water. I turned my old stant thermostat into a 'blank' for testing purposes. The gasket still stays in place to prevent leaks between the water pump and thermostat housing. If you do this to your old thermostat, and run that, and still get the overheating, then you can rule out the thermostat.

 

thermostat-blank1.jpg

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OK , I let it cool for an hour and then removed the rad cap.

Added alittle more coolant, and squeezed the upper hose to help release any air and i actually got quite a few bubbles out.

Topped it off and let it idle for about 25 min.

It actually held temp.

Didnt overheat and the gauge read a constant mid way for the whole 25 min.

 

I guees its fixed now.:confused::clap:

 

Thanx all

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