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510 getting warm and I do not know why!


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Recently my 510 has been getting warm and I don't know why! It seems like it started when I took the heater out and bypassed it (it was leaking). I've since drained and refilled the radiator, bought new hoses, new cap, new thermostat, and even a new temp sender and its still showing warm/hot on the gauge. I've run the car with rad cap off to let air out multiple times and no dice! What could it be? I haven't messed with timing or anything of that nature either. One thing i noticed is that there isn't much flow through the rad, it's sort of stagnant. So I was going to replace the water pump next... gauge used to stay on the first line right of the "C" on the gauge

 

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why would replacing the water pump fix it?????????? when it worked before the heater swap. Dont be a dumbass and pull the rad to swap a water pump. That long bolt needs to come out that whty the rad needs to be pulled.

 

 

most of the time the stat is closed, barely opens up if needed

 

 

fix the heater core or get new one and reinstall.

 

Heater acts like a rad also . Cant be it would cool it that much. going by the Temp gauge intications you gave.

 

 

cheack the timming

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Nope, doesn't have an original fuse box. There's spaghetti (wire) everywhere that I need to clean up and tidy. Dug around and found my cheap little thermal temp gauge highest I got moving it around was 174. I am planing on fixing the heater, just fixing other things that needed attention so it will be going back in, just haven't gotten around to it yet.

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If u have to replaced anything, replaced the stat first but dont buy it at autozone. They are only 10 dollas. But corrolate first with IR gun, aim it at stat housing and also check for cold spots around rad, could be not flowing right.

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maybe theres a huge airbubble in there but I seen a guy run it like this before somewhere on here.

I've had that temp bypass from front to rear elbow for over a year now....haven't had temp issues....he might not have one either....sending unit is likely over 30 years old, he needs an aftermarket temp gauge and while at it get the combo...oil, voltage and temp setup....I've seen this over and over again and it's just a bad old thermostat housing sensor.....

 

For shits & giggles....take off your radiator cap and let the stat cycle at least once....I like doing two personally....then top it off with coolant and put that cap back in....might just be an air bubble like Hainz said :thumbup:

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