MiNi Beast Posted April 19, 2021 Share Posted April 19, 2021 Cheapest be figuring out the issue before buying anything. good luck. Link to comment Share on other sites More sharing options...
WahooSteeler Posted April 19, 2021 Share Posted April 19, 2021 12 minutes ago, james-mc said: New tstat and coolant cap is supposed to be here tomorrow. Figured Id start with the cheapest solutions lol Which coolant cap did you order? The Volvo style is a must, OE style will expand with the filler neck and release pressure. That cured my overheating issues for a good while until other problems came up. Stant 10244 <$10 on Amazon or parts stores Link to comment Share on other sites More sharing options...
jdog Posted April 19, 2021 Share Posted April 19, 2021 Did you get a chance to check your hoses Link to comment Share on other sites More sharing options...
MiNi Beast Posted April 19, 2021 Share Posted April 19, 2021 16 minutes ago, jdog said: Did you get a chance to check your hoses he's just throwing parts at it. Link to comment Share on other sites More sharing options...
jdog Posted April 19, 2021 Share Posted April 19, 2021 Just now, MiNi Beast said: he's just throwing parts at it. Ah the cannon is getting fired Link to comment Share on other sites More sharing options...
JMO413 Posted April 19, 2021 Share Posted April 19, 2021 I'm voting air pocket. Link to comment Share on other sites More sharing options...
MiNi Beast Posted April 20, 2021 Share Posted April 20, 2021 Link to comment Share on other sites More sharing options...
james-mc Posted April 22, 2021 Author Share Posted April 22, 2021 Well the day I was going to work on the jeep it snowed here lol. Also my parts didnt arrive until yesterday. Id hoping its going to be warm enough tomorrow to flush the system a few times. The truck is sitting at my dads house so i havent been able to check for any hoses collapsing. This is the cap: https://www.napaonline.com/en/p/NDP81950501 Also my tstat housing has a plug that can be removed with a large allen wrench. Dumb question but what is this plug for? Could I burp the system by removing the plug? Link to comment Share on other sites More sharing options...
james-mc Posted April 22, 2021 Author Share Posted April 22, 2021 On 4/19/2021 at 12:19 PM, MiNi Beast said: Cheapest be figuring out the issue before buying anything. good luck. Haha true but its only $10 for tstat, gasket, and cap. And if its something else like a weak hose collapsing I can always return the parts I suppose lol. Link to comment Share on other sites More sharing options...
MiNi Beast Posted April 22, 2021 Share Posted April 22, 2021 yeah you can burp it there some. its a spot for temp sensor Link to comment Share on other sites More sharing options...
MiNi Beast Posted April 22, 2021 Share Posted April 22, 2021 1 minute ago, james-mc said: Haha true but its only $10 for tstat, gasket, and cap. And if its something else like a weak hose collapsing I can always return the parts I suppose lol. no you put on shelf it will be used, not a waste of money when maintenance parts. Link to comment Share on other sites More sharing options...
james-mc Posted April 22, 2021 Author Share Posted April 22, 2021 1 minute ago, MiNi Beast said: yeah you can burp it there some. its a spot for temp sensor I will try that. It looks like my temp sensor goes into the radiator. Link to comment Share on other sites More sharing options...
james-mc Posted April 22, 2021 Author Share Posted April 22, 2021 1 minute ago, MiNi Beast said: no you put on shelf it will be used, not a waste of money when maintenance parts. Haha i like the way you think. Rather have it and not need it than need it and not have it. Link to comment Share on other sites More sharing options...
MiNi Beast Posted April 22, 2021 Share Posted April 22, 2021 also you can park up hill when trying to burp system, it will help as some air could get trapped. Link to comment Share on other sites More sharing options...
james-mc Posted April 22, 2021 Author Share Posted April 22, 2021 1 hour ago, MiNi Beast said: also you can park up hill when trying to burp system, it will help as some air could get trapped. I will try that. Link to comment Share on other sites More sharing options...
james-mc Posted April 22, 2021 Author Share Posted April 22, 2021 Ok i got an update: New Reservoir cap seemed to fix the coolant dumping issue. I pulled the tstat to test later and just installed the new one. I will be flushing the coolant system this weekend as it is pretty rusty. I let it idle until about 200 range. I didnt take it for a drive. No hoses collapsed. Lower hose didnt feel as stiff as new but didnt collapse. Upper hose will need replaced as it looks like the hose clamp has cut into the hose on the bottom. So after the temp was high enough for the tstat to open I gave the hose a good squeeze and it didnt feel like there was much pressure behind it. Also while it was running I backed out the plug on the tstat housing and it seemed like water was barely flowing out. I expected it to spray from the water pump circulating and it was just line weak pulses. Could also be the water pump. I'm not sure. My dad said check with the yall before I buy water pump lol Link to comment Share on other sites More sharing options...
zomeizter Posted April 22, 2021 Share Posted April 22, 2021 I fought an overheating issue with a SBC before where there was insufficient coolant circulation, turned out to be the impeller in the water pump had become loose on the shaft. This drove me crazy for a good minute... Link to comment Share on other sites More sharing options...
james-mc Posted April 22, 2021 Author Share Posted April 22, 2021 Also added more antifreeze to between max and min level. Then i added even more antifreeze with the engine running until it quit sucking my reservoir dry. Installed cap back on and let idle for a bit. Then I cracked the cap until pressure leaked out and more coolant filled the reservoir to the max line. After that no more binging and purging of coolant from/into the reservoir. After shutting the engine off the coolant settles to the halfway mark where I originally filled it. I'm going to write that issue off as a bad cap not holding pressure. Link to comment Share on other sites More sharing options...
james-mc Posted April 22, 2021 Author Share Posted April 22, 2021 1 minute ago, zomeizter said: I fought an overheating issue with a SBC before where there was insufficient coolant circulation, turned out to be the impeller in the water pump had become loose on the shaft. This drove me crazy for a good minute... Its funny you mention that because I noticed my pump had kind of a wobble to it and i was thinking maybe it backed enough to not spin the impeller Link to comment Share on other sites More sharing options...
scaleless Posted April 23, 2021 Share Posted April 23, 2021 If you still struggle to resolve the issue, just pull the water pump and inspect it. Too much air in the system can lead to weak pumping action, but I've also seen my share of failed pumps. Water pumps are generally considered wearable items, so it's quite possible you're due for a new one. But don't throw a new one at it without checking! Link to comment Share on other sites More sharing options...
james-mc Posted April 23, 2021 Author Share Posted April 23, 2021 5 minutes ago, scaleless said: If you still struggle to resolve the issue, just pull the water pump and inspect it. Too much air in the system can lead to weak pumping action, but I've also seen my share of failed pumps. Water pumps are generally considered wearable items, so it's quite possible you're due for a new one. But don't throw a new one at it without checking! This one has a few years on it from what i understand. Oreillys has the new pump in stock. I guess i could pull it and inspect it then if its bad run and get the new one. I'm going to do the flush this weekend. Ill have to run some tests on the pump. Could I loosen the serp belt and spin the water pump while that tstat plug is out to see if fluid pumps out of the plug hole? Link to comment Share on other sites More sharing options...
james-mc Posted April 23, 2021 Author Share Posted April 23, 2021 Also when i pinched the upper hose after the tstat opened the hose felt stiffer and hot. But i didnt feel any sort of rush of fluid when i was letting off though. With the engine off the upper hose doesn't feel as stiff. Link to comment Share on other sites More sharing options...
MiNi Beast Posted April 23, 2021 Share Posted April 23, 2021 upper hose be still when running as water is being pumped through. squeeze in hand should bounce right back and thinning of walls with older hoses can be seen with inspections. lower hose should also have a spring in it to help in the anti-collapsing . sounds like you may have a weak pump, and if its new to you, as you haven't did this already, then id would just plan to replace pump just for good measure. not to say drive it a bit and see if it wasnt just that cap and some air. water is flowing either way. but does it maintain temp... Link to comment Share on other sites More sharing options...
james-mc Posted April 23, 2021 Author Share Posted April 23, 2021 35 minutes ago, MiNi Beast said: upper hose be still when running as water is being pumped through. squeeze in hand should bounce right back and thinning of walls with older hoses can be seen with inspections. lower hose should also have a spring in it to help in the anti-collapsing . sounds like you may have a weak pump, and if its new to you, as you haven't did this already, then id would just plan to replace pump just for good measure. not to say drive it a bit and see if it wasnt just that cap and some air. water is flowing either way. but does it maintain temp... Ok. Its like a $40 part from what ive seen. The hose seemed like it was pretty stiff with the tstat open but I just couldnt feel a good flow like I have on other vehicles. I didnt get take it for a drive since it was getting late. But I can say once the engine hit 190 and the tstat opened the engine did cool down to around 165-175 (according to the temp guage). After letting it idle for about half an hour the guage sat around 200. I will take it for a drive this weekend. If it doesnt overheat I might put in some of that coolant system cleaner in her and drive a little bit before the flush. Link to comment Share on other sites More sharing options...
MiNi Beast Posted April 23, 2021 Share Posted April 23, 2021 yeah not bad. these parts are just stupid simple upgrades for these jeeps. jeep go no where if it ain't running right. maintenence parts easy buy decision, peace of mind with reliability. She don't need to be pretty if she gets you home. what do you do with that stimulus check???? Buy jeep parts to keep it running down the road. #Curbs be rough in #MaynardHood.. Link to comment Share on other sites More sharing options...
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