Zackr125 Posted August 4, 2021 Report Share Posted August 4, 2021 Recently I went on break and went to my car only to find my coolant all over the ground. It was a cold night so I was able to drive home without the engine getting hot. After searching forever I could not find where the coolant came out from. I filled the car back up with coolant and let it run, everything was fine until it got to operating temp. It seems like all the coolant is getting pumped back into the reservoir and staying there until there is so much pressure it starts spraying out of the cap. I put a new thermostat in thinking that maybe it was blocking flow from the reservoir, but the problem persists. Listening to any ideas. I don’t think it’s the water pump because the coolant is still getting pumped back into the reservoir. Quote Link to comment Share on other sites More sharing options...
NavalLacrosse Posted August 4, 2021 Report Share Posted August 4, 2021 (edited) is the second thermostat stuck? usually there is two, one for the low temp, and one for hi temp. I'm not 100% certain the journey has two, but based on your hypothesis, a stuck secondary thermostat would cause your issus. Edited August 4, 2021 by NavalLacrosse Zackr125 1 Quote Link to comment Share on other sites More sharing options...
2late4u Posted August 4, 2021 Report Share Posted August 4, 2021 (edited) first thing DONT drive it with it being low on fluid even for a short drive and it not getting hot as YOU will damage your engine,,,sounds like you have blockage in the radiator as it will empty to the res but not let it return to the radiator as it should, could be as simple as a bad hose, clamps that might be partially loose,faulty rad cap or as bad as a bad head gasket,,,google or go to you tube for info on your problem , have you done a pressure check on the radiator,, be careful of overheating your engine while trying to fix this,might be cheaper to have it fixed by your local mechanic as they have all the tools and gauges if you dont ....good luck and please report back on what you find your trouble is Edited August 4, 2021 by 2late4u Zackr125 1 Quote Link to comment Share on other sites More sharing options...
5rebel9 Posted August 4, 2021 Report Share Posted August 4, 2021 1 minute ago, NavalLacrosse said: the second thermostat stuck? usually there is two, one for the low temp, and one for hi temp. Not on the 3.6 as posted in the thread title. My best guess was that it was a bad T-Stat and replacement refill of coolant has left air entrapment. 2late4u and Zackr125 2 Quote Link to comment Share on other sites More sharing options...
2late4u Posted August 4, 2021 Report Share Posted August 4, 2021 5 minutes ago, NavalLacrosse said: is the second thermostat stuck? usually there is two, one for the low temp, and one for hi temp. I'm not 100% certain the journey has two, but based on your hypothesis, a stuck secondary thermostat would cause your issus. think the 3.6 has only one thermostat the 2.4 is the one with 2 of them Zackr125 1 Quote Link to comment Share on other sites More sharing options...
2late4u Posted August 4, 2021 Report Share Posted August 4, 2021 Zackr125 as stated above by ( 5rebel9 ) did you bleed the air out of the system after you replaced the thermostat,,,, easy to do google that on you tube as well Zackr125 1 Quote Link to comment Share on other sites More sharing options...
Zackr125 Posted August 4, 2021 Author Report Share Posted August 4, 2021 Sorry for checking back late to all that have replied. I believe there is only one thermostat on this motor after all the researching I did, but I could be wrong. After I changed the thermostat that I know of I did my best to bleed air out of the lines. The only way we’ve done it growing up was parking on a hill with the motor up and do a cold start with the cap off of the reservoir until it stops producing bubbles, and stays at a constant level. I wasn’t able to finish bc when it got to operating temp it started to over flow into the reservoir again and I had to kill it. I feel goofy because I haven’t checked the hoses yet as suggested above Quote Link to comment Share on other sites More sharing options...
John/Horace Posted August 4, 2021 Report Share Posted August 4, 2021 (edited) Possibly bad rad cap, weak spring sending flow to reservoir. Pressure test system if bleeding doesn't help. Only one thermostat 3.6 engine. Edited August 4, 2021 by John/Horace Zackr125 1 Quote Link to comment Share on other sites More sharing options...
2late4u Posted August 5, 2021 Report Share Posted August 5, 2021 hard to understand but clearly shows n how to bleed the air but dont remove the screw compleatly like he did......... Quote Link to comment Share on other sites More sharing options...
Zackr125 Posted August 5, 2021 Author Report Share Posted August 5, 2021 Just now, 2late4u said: hard to understand but clearly shows n how to bleed the air but dont remove the screw compleatly like he did......... I’ve never had luck with bleeder valves. I did try with this vehicle however, but with no success. That’s what makes me wonder if it’s a head gasket, but I’m not losing coolant until it comes out of the reservoir from to much pressure Quote Link to comment Share on other sites More sharing options...
5rebel9 Posted August 5, 2021 Report Share Posted August 5, 2021 You ran the vehicle with no coolant, and yours probably has rear heat. So a lot of air can entrap in the whole system. Do not put a gallon or so in and try to run the car, let it sit and self fill from the res. and keep topping up. This will take a good bit of time to do. A blown head gasket will normally show the symptom you describe within 2 minutes of start up. There are many possibilities as to just what is going on that we here can not see on your vehicle, and a good bit of info given by you is lacking than to make more than a guess as to where the problem is and how to fix it. 2late4u 1 Quote Link to comment Share on other sites More sharing options...
John/Horace Posted August 5, 2021 Report Share Posted August 5, 2021 Its a two stage lock on the rad cap. Second stage is spring loaded and needs pressing down to lock. Squeezing upper and lower hose with cap off helps push the air out of system. Funnel into fill port also helps air escape faster during fill. Quote Link to comment Share on other sites More sharing options...
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