ikr lived that ,they blame the radiator changed it it gets hotter than before than changed thermostat because it was behind the timing belt so changed it lastly and all my problems gone away the thermostat they remove is like new no rust nothing but it was faulty ,so the lesson ı learned change it every 7 years if it is clean or rusted no matter .

Can a new thermostat be bad ? Exterra pushes the coolent out the resavior after it warms up to normal temp

@@mykidsafag every part can come faulty but consider the possiblity of early sign of head gasket fault which is exhaust gas escaping into coolant and pushes out of resorvoir and makes coolant boil ,but pressured systems like german cars shouldnt be used without resarvoir cap or it boiling and escapes out of it ,and it is normal to pressured coolant systems to squirt some of coolant from cap bleeder when it needs to but if you lose more than you supposed to be you should check it.

​@@mykidsafagis the gasket there

Yes but… al engines doesn’t have the switch in the radiator, some have dem in the block, in the thermostat housing etc.

That’s exactly what I think I got rn😂😂😂😂

Bro, if you don’t take the top of your block off and go stick a $20 gasket on it from AutoZone I’m gonna slap you😂

It’s really not that hard. Hey, there’s videos on how to do it and be there’s this really nice thing called a Haynes repair. Manual works absolutely wonders based off of the original owners manual just more in-depth based on complete tear down and rebuild you’re welcome

A blown head gasket is gonna make your car sound like shit

​@@vayciabsolutely bro. It used to be Chilton's but now it's Haynes

It's hard to say what the cause is, but I would start by inspecting the radiator and hoses for any leaks and then checking the water pump and thermostat.

@@HVAC_Mechanic Will do! Thanks for the response👍

Are there signs the engine is overheating? Otherwise, it may be a bad engine coolant temperature sensor.

@@HVAC_Mechanic no it’s not. I did hAve the thermostat replaced and it hasn’t dropped since.

I would test the coolant temperature sensor.

A bad ECT or bad wiring can cause that issue. Does the dashboard gauge work correctly? If you have a scan tool, check to see if the ECT is reporting a temperature that is way off.

There’s probably a spring in there

Generally that means the hose is under pressure. Don't open the cap until it cools down.

I have a vw Jetta Hybrid that's doing the same exact thing. I'm also smelling a gas odor when I first start my car. Idk I'm a single momma trying to figure this all out. Don't have money for a shop. 😢😢

​@jennifercombs6709 that's you're problem lol Volkswagen

HEATER CORE CLOGGED OR BAD T STAT BLEND DOOR OR BLEND DOOR ACTUATOR DOESN'T HURT TO CHANGE THE CAP EITHER HOPE THAT HELPS

​@@jennifercombs6709 🎶 🎻 🎵

Steam is common with heater core issues

Have u checked ur cabin air filter? Usually during oil changes the mechanic swaps out the dirty air filter for a new one. Also check the fan if it is broken or not responding.

If it is not overheating, I would check the engine coolant temperature sensor.

@@HVAC_Mechanic thank you

Is the engine overheating? If the engine is not overheating, the temp sensor may be bad.

If there is a lot of rust in the system, it can cause them to fail quickly.

Temperature sending unit.

how high? did you find the cause? did you fix it? I used autel to watch temp and pump revs. see my other post.

Did u solve it ? My car is loke this ..I had changed the ect but I now own an oem 1 to put in and go from there

@@kevinhancock4064 no, i did not find the cause. I had random unpredictable overheating. very short ones, 2-3 sec each. changed pump and rotor, changed thermostat, changed ETC. finally toyota diagnosed failing head gasket. i did not want to believe it is hg, because i took good care of my car, never low on water, never late for oil. but them faced the reality, i changed the HG. DO NOT buy original toyota head gaskets: some of the lots are substandard, thats why they fail. i got mine from rockout, victor reinz. i finished, put it together, and started driving as a test round town, while watching realtime temperature and pump revolution. so, first 20-25 miles temp was 85-88 degC. then suddenly raised up to 101. i freaked and overreacted and stopped. so, I took apart the cooling system, and flushed both radiators with garden hose. Expected to see deposits, mud, sand, but nothing came out. Then I reinstalled the old original thermostat. Put it together, and no problem. Just put 950 miles on new head gasket. No leaks, no error DTC. I drove 750 miles in one day while watching the temperature: ROCK SOLID, 88-89 C. Pump revolutions: 2500-2600, and when you rev engine, goes to 3000. So, I suspect that the new thermostat may have turning bad in 6 months. I returned the old one, cause it was proven to be good. I also changed the ECT, and checked the old one. he old one was OK, I think. It is Pt, platinum wire, because Pt is extremely durable. no oxidation, very high melting, encapsulated in a seald copper ampule. I checked the resistivity of the old one, it was 1500 ohm at room temperature, this is what it should be. You can find tables with T-R relations on the internet.

YES

So you declined to pay 10 dollars to check something that could cost you thousands ...Penny wise and Pound foolish smh.

Wtf why did you decline a 10 dollar service fee?

Heater core probably

She was upset y’all

Man having a similar problem did you find anything out