Overheating
imprtedcivic
Band Wagon
ok. car has, new headgasket, new thermostat, fresh coolent.
car drove fine for 2hours yesterday, after the new coolent, thermo, and an oil change, first time it hasnt overheated since i have drove it, it was 89degreese outside.
tooday, went to drive the car, was not even driving it for 10mins, and it started overheating, it was 105degreese outside.
any help, would be appreciated.
car drove fine for 2hours yesterday, after the new coolent, thermo, and an oil change, first time it hasnt overheated since i have drove it, it was 89degreese outside.
tooday, went to drive the car, was not even driving it for 10mins, and it started overheating, it was 105degreese outside.
any help, would be appreciated.
Comments
no marks on the motor as to where it has/may have been leaking.
Possible faulty coolant temp sensor, maybe water pump going bad... I would pressurize the cooling system and look for leaks anywhere..
yes, squeezed both lines till air bumbled out,. then filled more
yes fan turns on.
one thing it can be is the waterpump not circulating coolant
Also, the system will not pressurize properly and the coolant will boil at a lower temperature.
thermostat- may be bad it happens usually on non factory parts. but it would overheat at idle
water pump- could be same as thermo overheat at idle
My thought, sounds like it may be running lean at the higher rpm. Valves adjusted proper, timing set correct.
You just did the head gasket did you re torque it after the 1st drive? possible leak.
also sound like you have warmer weather 50/50 coolant is better than more coolant water disapates heat quicker then antifreeze. hence "anti - freeze"
yeah, especially if some former owner poured "stop-leak" into the cooling system.
I had a friend whose civic had the fan hard-wired, and the wires were switched around. Caused the fan to operate in reverse, and it was fine at idle, but overheated at speed, because the fan was trying to push air forward against the natural flow, causing basically no airflow over the radiator.
I left there and drove the piss out of her, 6 consecutive 100+ mph passes followed by driving like a granny. Car never went over the halfway mark
How did you guys figure that one out? Before reading this I wouldn't have ever thought about it... Just one of those things you assume is right i guess, haha! Good work!
That's a trip. My buddy had this pos 90s ford that the previous owner rewired things for reasons I couldn't figure out. Anyway, we could not figure out why it would get hot on the highway, something like this I wouldn't have guessed, but reading that now, thinking back, I remember feeling a lot of air movement at my crouch when I was leaning over checking the coolant level... I recall making a blow job comment... And it never occurred to me, but I am damn near positive that was the problem, lol! Oh well, he traded it for another headache...
I'd never though of an inverted-wiring fan neither.
i just changed my thermostat, because i'm driving to cali from kansas again. now it over heats and didn't before.
perfect at idle, temp raises when i get on the highway-then goes down as i slow down.
wtf!
so i replaced the thermostat w/ oe honda. still happens.
fan works
thermostat works
new cap twice
new fan switch
new temp switch
flush radiator(it was clean)-used 50/50
water pump works(no noise coming from it, i'v atleast 30,000 more miles on it.)
no milky oil.
i'm thinking of doing a compression test on radiator or changing the water pump.
i'm stuck.
what do i do?
i do see the reservoir filling up, but not overflowing and sometime it doesn't fill up.
i'm baffled.
should i replace the water pump?
this is costing me.