Here is hopefully a quick history of how I got here asking for help.
First serpentine belt blows on the highway and the car overheats a bit and has to be flat towed back.
Next, I replace the serpentine belt and tensioner and all of a sudden, the car is now overheating.
So next I investigate the water pump and thermostat and replace both of those and top up the coolant and it runs again, but still overheats.
Temps on the engine will go up to 120 plus while driving and no hot air is coming out the vents.
Now I have done all I can, so I take it to a mechanic, and they flush the coolant and find out the new thermostat I installed is already faulty.
They say it works great so I take it home and guess what I am still overheating and no heat from the vents at all.
Finally, the mechanic suggests putting some of these coolant tabs in my reservoir, so I try that, and it doesn't seem to do much, so I try adding another coolant / head gasket sealer magic stuff from auto parts store. I let it work its magic and it seems to have helped.
Also, the fan on the car is working as it should at all times and coolant is topped up to proper level I should mention, when the temps reach 108 I do still see steam coming from the engine and reservoir area.
Now I can drive the car and the coolant temp will stay at 108, a little higher than the 99 or 100 it should be at and as long as the rpm are around 2000 or above the heat will stay constant and hot.
The final weird thing is if it does heat up to 108 and I park it and leave it running the temp will stay up, but if I rev the car up to 2000 and hold it, the help will drop and the heat will come back on inside the car.
Any ideas or help would be greatly appreciated of where to go next with this, right now the car is drivable and not overheating, but I would like to have heat at idle like it should and maybe get the temp down closer to 100.
One final note would be all the test drives I have done have been in -30 weather here in Canada so I don't know how the cooling system is going to do once we get back to some more seasonal temps.
Thank you for any and all help.
First serpentine belt blows on the highway and the car overheats a bit and has to be flat towed back.
Next, I replace the serpentine belt and tensioner and all of a sudden, the car is now overheating.
So next I investigate the water pump and thermostat and replace both of those and top up the coolant and it runs again, but still overheats.
Temps on the engine will go up to 120 plus while driving and no hot air is coming out the vents.
Now I have done all I can, so I take it to a mechanic, and they flush the coolant and find out the new thermostat I installed is already faulty.
They say it works great so I take it home and guess what I am still overheating and no heat from the vents at all.
Finally, the mechanic suggests putting some of these coolant tabs in my reservoir, so I try that, and it doesn't seem to do much, so I try adding another coolant / head gasket sealer magic stuff from auto parts store. I let it work its magic and it seems to have helped.
Also, the fan on the car is working as it should at all times and coolant is topped up to proper level I should mention, when the temps reach 108 I do still see steam coming from the engine and reservoir area.
Now I can drive the car and the coolant temp will stay at 108, a little higher than the 99 or 100 it should be at and as long as the rpm are around 2000 or above the heat will stay constant and hot.
The final weird thing is if it does heat up to 108 and I park it and leave it running the temp will stay up, but if I rev the car up to 2000 and hold it, the help will drop and the heat will come back on inside the car.
Any ideas or help would be greatly appreciated of where to go next with this, right now the car is drivable and not overheating, but I would like to have heat at idle like it should and maybe get the temp down closer to 100.
One final note would be all the test drives I have done have been in -30 weather here in Canada so I don't know how the cooling system is going to do once we get back to some more seasonal temps.
Thank you for any and all help.
