engine temp problem
#1
engine temp problem
I'm really not understanding what's going on here. The car had a 180 degree tstat in it. During first warmup it goes up to around 230 degrees then jumps down to 180 degrees& stays for a while, then starts climbing again & drops. Replaced the tstat witha 185 degree & still doing the same thing. water pump was just replaced.
It does this while idling or driving, will climb up to around 220-230 then drop to 180 pretty quickly
At first I thought low coolant because the car didn't seem to take that much before it was all the way full so I would let the engine run, pour some in, let it run a bit, pour some in, let it run , then pour some in. Always does the same thing.
Any idea what could be causing this?
I do know it does need a flush pretty bad, every time I drain the coolant it comes out rusty looking, like brownish tint to it.
It does this while idling or driving, will climb up to around 220-230 then drop to 180 pretty quickly
At first I thought low coolant because the car didn't seem to take that much before it was all the way full so I would let the engine run, pour some in, let it run a bit, pour some in, let it run , then pour some in. Always does the same thing.
Any idea what could be causing this?
I do know it does need a flush pretty bad, every time I drain the coolant it comes out rusty looking, like brownish tint to it.
#3
RE: engine temp problem
After work is done on the cooling system that is a normal thing to happen due to air in the system. If this continues anfter a day or two of driving and refilling the system to proper level then you may have a problem. It sounds like the thermostat is doing its job. The temp will get around 200 with a 185 stat before it drops. If you feel like the temp is getting too high before it drops AND you already tried another T-stat with the same results, then maybe your gauge is inacurate. This could be caused by a bad sending unit, gauge, or voltage regulator in cluster. Start with the eaisiest (sender) and go from there. From the way I took your post it seems like when the stat opens the car does go back to 185ish. If, while driving for a while the car continues to raise in temp then it is an engine fault which could be a list of things.
#4
RE: engine temp problem
i'm 100% positive the aftermarket gauge is correct.
I'm pretty sure it is air pockets. Everytime I look the coolant is low & needs more.There are no leaks for coolant to get out of either.
I'll give it a try this weekend. It's been in the shed, just got the gears swapped & already started takingthe engine out & apart. (low oil psi replacing the crank,rod, main, cam bearings) should be done by friday
I'm pretty sure it is air pockets. Everytime I look the coolant is low & needs more.There are no leaks for coolant to get out of either.
I'll give it a try this weekend. It's been in the shed, just got the gears swapped & already started takingthe engine out & apart. (low oil psi replacing the crank,rod, main, cam bearings) should be done by friday
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