MJT805

I swapped in a jdm h22a to my 93 si. car runs great for the most part but after running for a while the temp. goes way high.

I replaced the h2o pump along with timing and all that before i put the motor in and last night i put in a new thermostat and bled the system, still getting hot.

Theres a 30-40% chance the h2o pump is bad or instaleld wrong but im pretty confident in my work. Any ideas on what i could do before taking the h20 pump out again?

spin_r_g

Is the radiator fan coming on when it gets hot? Do they work at all? If the fan works then your coolant temp switch is bad.

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MJT805

The fans do come on. they didnt before last night but a new thermostat fixed that.

spin_r_g

Check to see if your engine coolant sensor is faulty or not.

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MJT805

thats what im going to do when im off work. check back in like 3 hrs. i should have it done by then