Its overheating and cold air is coming out of the heater. ive changed the thermostat and the cap rad. It worked properly for 1hour and than it overheat again with cold air coming out of the heater. air seems trapped inside but i did everything and it seems like the air still trapped. thank you !! :)
Is this a USA car, why not say???
redux 1.
ok you read the book, but most books do not teach the skills burping engines.
some do , I have jeep XJ that they book says jackup the front bumper 4 feet in the air.
bull, i found a fare easier way.(hoses pulled way)
so burping any engine is a skill
what we do is find a high spot. or make one.
that means pulling hose.
that is all im going to say but can tell you some engines are very hard to burp, like old XJ was.
what told you it overheated, name the proof.
cluster meter.
OBD2 scans.
IR GUN.
what? i name 10 more, easy. but why? you tell me.
save the helper from guessing that.
the cold HVAC (heater) tells me it is not overheating
or the HVAC is dead, or the block is full of air.
now do learn that not one ECT made can measure
air temps.
it measures only water, not air. ever.
and if you have air there, the ECT is now USELESS as a brick.
Do not ever run any block full of air
or risk warping that or the heads, $$$$$$$$$$$$$$$$$$
do do coolant service learn how to do it correctly
there are many ways and means and skipping this
invites a blown engine.
imagine, that red hot, water jacked and burned up rings. and worse.
its not an air cooled engine at all.
respect the jackets or go broke.
i have never burped a J24b engine.
only j20s.
and they are hard to burp.
I do them all in stages,. with hoses pulled.
top hoses and rad cap off to start.
that is how I do it.
Testimonial: "i have the manuel, i did exactly what they said, there is no leak what so ever, i think its maybe the coolant sensor. wish im changing it today to see. thank you for your helpfull answer ! :)"
ive seen vast engines hard to burb.
there are many ways to do it
but removing hoses and the rad cap off
helps'
what I do rad cap off
is fill it full there. and stop
then find a top engine water hose, to
to add more water.(AF 50%)
i get as much AF as I can into the block etc.
one way to do that is know your total capacity of coolant, say 12 qts
so if my premix is now at 6 quarts put in
and is running now out rad neck cap off.
then i know i did it wrong.
see? seem my logic, 1/2 is AIR. wrong.
so knowing i did it wrong (or luck)
is pull hoses and fill from there.
once i get close to say 10 qts.
is start engine and run for 5min, cap off
wow, it drops fast. is see the rad neck go dry
add more now, and watch it.
im at 11qt in.
cap one get engine hot shut it off
then let it cool to hand to touch wiht side tank 1/2 full ( to line)
now check levels again.
and repeat , run 5min cool cycles.
till the rad neck level is now stable.
now its full. 12 qt.
if the thermostat was out, i prefile the block at that hole there, get it full for Af Then put the stat back in, not backwards and the bleed hole UP.
one can prefill as you go and save tons of headaches and damage.
my guess is, (im not here watching you)
ECT is ok, as most are.
and air in the block.!!!! you have air. there. ECT is not and AIR SENSOR. at all.
or thermostat installed wrong bleed hole down. and can not burp it like that..
give the block, time to burp put by self
rad cap off, fill slowly the rad. do not rush it. (its a slow process, 30min?)
the thermostat on most engines, block burping naturally (is why the bleed is there)
that is it,
i can be totally wrong here, ive no idea what started all this work.
the story was NOT TOLD. and matters.
joyellowhors
please start your own post
with what started all this..
the story.
the symptoms before and after touching engine.
and what engine,, this one is J24b ONLY.
mine is (sold) H27,v6.
the art of bleed the coolant loop varies buy ENGINE there.(and hose arrangements)
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Is the CAR overheating or the air coming off of heater getting over heated?
Testimonial: "the car is overheating, cold air coming out from the heater."
"ive changed the thermostat", they said.
so... it was done wrong.
the loop is full of air.
and very bad for any engine
do not drive it or run it,until most the air is burped out.
do not, or you will be sorry, !!!
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