like the title says , my little hatch keeps overheatingg .
it has brand new water pump, thermostat and cap all installed yesterday .
but the stupid thing keeps overheating .. the timing is all good as well
im at my wits end .
its a b18a1.
thanks ! much is appreciated for any help at all .

 

Bad head gasket
bad radiator

Is it leaking

 

headgasket doesnt seem to be leaking , no water in the oil .
im going to swap out the rad hoping tht fixes it .

there isnt any obvious leaks that i can see, then again it could be pushing out a pin hole crack or from one of the tanks is seperating ..

 

How long does it take to overheat, after a couple min in the driveway, or while driving?

 

while driving .. takes bout 10 miles .

 

Sound like bad radiator. Have you changed \ flushed the coolant?

 

yeah changed the coolant when i did the water pump yesterday.

 

I would also say your rad is the problem.

 

thanks guys !
anyone got a spare rad. in the el paso texas area ? lol

 

Have you notice if your fan/s come on?

 

my fan is wired to come one when the key is on the run position. and yes it working .

 

Did you evacuate all the air bubbles?

 

Then is either a faulty thermostat or the radiator itself, test ur thermostat to be sure u didn't get a faulty one happened to me already...

 

followed the steps i knew how , fill it up , start the car .. wait for thermostat to open , then fill more and wait for all bubbles to dissappear.
is this the correcct way ?

 

well i did a pressure test of the cooling system, everything checked out good , so with a small last ditch attempt, i deleted my heater core . holds strong now . also added another fan .

 

My friend i believe you should also do a cylinder combustion champer pressure test.just to be sure from the engine side.

 

on the coupler for the top rad hose on the motor there is a bleeder valve, thats how you get rid of the air pockets in your coolant, it doesnt take much of a air pocket to make your car overheat, its a 10mm bolt with a little nipple on top of it, jus start your car and let it idle then open it a little, it will spit out coolant but if theres air pockets it will spit that out to, jus like brakes wait til its a constant stream of coolant then tighten it n your good on that, jus dont tighten it to tight, it can break easily, a compression test would be a good thing to try also

 

was the car overheating before the waterpump/thermostat install? sounds like air in the system