Coolant acting weird
#1
Coolant acting weird
Hey guys. So, i recently bought a 96 civic hatch with b16a2 engine (its called vti in here) and the mechanic just replaced the thermostat, the radiator cap, and the water pump. However, when im flooring it with the warm engine, the temperature starts to decrease, almost to very cold, and after that it just slowly climbs back to operating temperature. My theory is that the aftermarket radiator cap couldnt hold the pressure, and it sucks some coolant from the reservoir. I tried bleeding the air out but no succes. Is my theory possible, or should i look somewhere else?
#3
Re: Coolant acting weird
I dont think that the thermostat stuck open, the engine heats up normally, but there is a possibility that its open sooner, the mechanic said its a good quality stuff (gates i think). Is this something i should really worry about? The car is in good condition and i dont want to ruin it
#4
Re: Coolant acting weird
If it really is overcooling, that has to be the thermostat. Nothing else would cause that.
It could be a gauge error electrically related. If the wire to the sensor is loose the gauge will show cold even though the engine is hot.
It could be a gauge error electrically related. If the wire to the sensor is loose the gauge will show cold even though the engine is hot.
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#9
Re: Coolant acting weird
Was wondering also why was it in the shop on the first place???? Overheating issues... whole motor swap...
I bet you the mechanic installed the gates thermostat.
OP let us know more details why the car is in the shop.
I bet you the mechanic installed the gates thermostat.
OP let us know more details why the car is in the shop.
#11
Re: Coolant acting weird
I had a b18a1 teggy and I was wondering like you also why does the needle moves to cold while driving then sitting idle it’ll raise back to normal temp.
Then found out it had aftermarket thermostat. I changed it back to oem specs thermostat and ran normal. Then I sold it.
But having a thermostat that doesn’t let the engine warm up to normal operating temperature can affect the fueling map, the ecu reading the engine isn’t warmed up properly and it’ll throw more fuel in.
so if I were you I’d get him to change it back to oem specs.
But it’s your choice.
Then found out it had aftermarket thermostat. I changed it back to oem specs thermostat and ran normal. Then I sold it.
But having a thermostat that doesn’t let the engine warm up to normal operating temperature can affect the fueling map, the ecu reading the engine isn’t warmed up properly and it’ll throw more fuel in.
so if I were you I’d get him to change it back to oem specs.
But it’s your choice.
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#15
#20
Re: Coolant acting weird
I hope this save you a huge headache.
When my car had this exact same problem, it was the sender on the head.
It was faulty.
AND!
The only sender that is correctly calibrated is oem Honda. All aftermarket pieces will send incorrect readings. As soon as you start the car it will show over heating.
So pull one from a junk yard.
When my car had this exact same problem, it was the sender on the head.
It was faulty.
AND!
The only sender that is correctly calibrated is oem Honda. All aftermarket pieces will send incorrect readings. As soon as you start the car it will show over heating.
So pull one from a junk yard.
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