Engine overheats, coolant level drops

Before you can dianosis the system you must first detect any leaks and then repair those leaks. To do this go rent a radiator pressure tester from your local parts store.

Once you have identified any leaks, fix them. Once they are fixed then you can further diagnosis the system.

 

turbidity
n 1: muddiness created by stirring up sediment or having foreign
particles suspended

 

Did you replace the radiator cap yet? It's been mentioned a few times, but don't see that you changed it. If it's leaking, then the pressure can't build in the system and the coolant boils and can overheat the engine. It would also vent out of the radiator cap and you would lose fluid. They are cheap and easy to replace if you haven't yet...

 

All I want to know is what code it threw before the OP started this garbage dump of a thread. It's gone NO WHERE!!!!

Only reason I'm still here is I'm genuinely interested as to weather or not the guy has bad HG's or lost pressure somewhere in his coolant return.

It's not like I'm asking the OP to stick their head under the hood but to take it to someone who is competent enough to locate the fucking throttle body. That'd be a start.

 

Here is the thermostat. I have not done the boiling water test yet.

 

Haven't read the previous posts , have you checked the codes ?

 

I would consider a replacement of the thermostat at this point- it's out and if things got that bad, it may be damaged at this time. If you bench test it and it "seems" ok, and you reinstall it only to find the actual cause of the overheat and resolve that, you may come to wish you'd replaced the thermostat anyhow.

As I'm sure you know, there will be a cause for all of this, but then collateral damage occurs and is sometimes not detected- part "A" caused the overheat and over time while driving and using the vehicle, the excessive heat/boiling water/pressure/temp changes will cause your hoses, thermostat, radiator cap, etc... to experience damage that may not be readily apparent, and for the most part, they are not the expensive parts to watch out for. If you're this far along, it's something I'd consider doing.

 

I have not yet, been busy taking the thermostat out and next I'll take the water pump. Maybe after that.

 

Aww.... kitteh!
Oh yeah- thermostats and such...

Did the water pump spin freely? Did it offer up too much resistance? Going back to that belt... What caused all of that damage? Was the belt just old, dry and heavily checked/falling apart? Or was there interference of some sort- like a sticking/out-of-balance pulley somewhere along its path?

 

Hmm, I seem to remember someone suggesting that route. OP, for the last time I meant no offense so calm down or you are going to get your own thread locked. If the radiator is good I'd change the thermostat, hoses, and water pump at least. Those items do wear and at almost 10 years old they are prone to failure by this point.

Seems like you are on that track. GLHF.

 

seems like you don't like it around here. why don't you go away to everyone's satisfaction? we are trying to solve a technical problem, not have psychotherapy or idle trolling...

 

I haven't yet got to the water pump (I actually have a FT job to which I ride public transportation, which explains the lack of priority). I just got to take the thermostat off last night.

As for the belt, I think it was just old. The new one I replaced on Sunday is working fine (I drove nearly 200 mi with it and replacing water in the coolant system every 30 mi).

 

Is there a way to pop the thermostat out of the housing without destroying the whole thing? If so, you could run it like that to see if that it takes care of the issue.

Or if it's cheap enough, replace it anyway while it's out. I still think that's all you have wrong besides the torn up belt.

 

The belt has been replaced and the new one works fine. Thanks

 

I never even considered the obstruction of the radiator fins. With Hyundais, ESPECIALLY THIS TIME OF YEAR, we used to see the Tucsons come in running excessively hot and the radiator would be chock full of seeds, dandelion flakey things, remnants of leaves and such. We would remove the radiators and pressure wash the crap off of them, reinstall them and they were good as new- so long as they were not run too long like that which would, again, ruin hoses, thermostats and such. They used to have huge openings in front of and below the radiator which would facilitate sucking things into that area.

Since the belt was just all worn out, if everything spins freely and there are no wobbles or noises from the pulleys, I'm along for the ride that the thermostat crapped out. The question of the day is did it crap out and cause the issue? Or did something else cause the high temps which took out the thermostat? Guessing again- I'd say thermostat caused the issue and replacing it along with the hoses will solve the issue.