coolant boiling hot NEED HELP
05-16-2010, 05:12 PM
#1
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coolant boiling hot NEED HELP Ok guys thought i had thermostat problem.I noticed the lines was extremely hot after the engine was running for only 5 minutes and was worried. So i put a new thermostat in today.After engine running and filling her up with coolant within 5 minutes the coolant started boiling out instantly.I mean red hot.Whats the deal here.Is there an air pocket in there or a clog to make it pour out like that.It seems like the engine rejected it.
Oh by the way i dont know if this had anything to do with it but I had one tire jacked up in rear for one month?
Need your imput and NO I have not driven it yet.Should I?
Oh by the way i dont know if this had anything to do with it but I had one tire jacked up in rear for one month?
Need your imput and NO I have not driven it yet.Should I?
05-17-2010, 07:10 PM
#3
you need to bleed the system for the air pockets.. https://ls1tech.com/forums/general-m...-question.html Do what they say in this thread and let us know what happens
05-17-2010, 07:17 PM
#4
Best/easiest way to flush and get every drop of old coolant out.
Cold engine.
Remove radiator fill cap.
Remove the t-stat. (2-3 minute job)
Put t-stat housing back on. (1 minute) No need to crank it down, there will be no pressure built up. One bolt is fine.
Take the entire radiator drain valve (petcock) "off", don't just open it. It'll drain faster with it off and thats what you want. ((Buy a new petcock, sometimes they break when you remove them all the way, they're like $2.00))
Take a hose and stick it in the radiator fill cap, running medium to high.
Start the engine.
Let it run for about 15-20 minutes or until the water is running out the drain CLEAR.
When it does your entire system is clean.
Put the t-stat back in.
Put the drain valve back in. Use the new one, what the hell.
Put half a jug of Dexcool in the radiator. (Or if you live in very cold places, 1 ½ jugs of Dexcool)
Fill the rest with water. (one bottle of water wetter can't hurt, your choice)
you do not need to use distilled water, clean hose water is just fine
**Start it up and let it run and warm up till the t-stat opens once and starts to flow, if the level drops just top it off with coolant/water. Then wait one more time for the t-stat to open and start to flow, if it drops down again top it off again. Do it again if you want to make sure. I always massage the upper and lower hoses while its warming up to help move the air bubble through. Always works like a charm.
Done.
** Courtesy of LS6427's post in another thread **
Cold engine.
Remove radiator fill cap.
Remove the t-stat. (2-3 minute job)
Put t-stat housing back on. (1 minute) No need to crank it down, there will be no pressure built up. One bolt is fine.
Take the entire radiator drain valve (petcock) "off", don't just open it. It'll drain faster with it off and thats what you want. ((Buy a new petcock, sometimes they break when you remove them all the way, they're like $2.00))
Take a hose and stick it in the radiator fill cap, running medium to high.
Start the engine.
Let it run for about 15-20 minutes or until the water is running out the drain CLEAR.
When it does your entire system is clean.
Put the t-stat back in.
Put the drain valve back in. Use the new one, what the hell.
Put half a jug of Dexcool in the radiator. (Or if you live in very cold places, 1 ½ jugs of Dexcool)
Fill the rest with water. (one bottle of water wetter can't hurt, your choice)
you do not need to use distilled water, clean hose water is just fine
**Start it up and let it run and warm up till the t-stat opens once and starts to flow, if the level drops just top it off with coolant/water. Then wait one more time for the t-stat to open and start to flow, if it drops down again top it off again. Do it again if you want to make sure. I always massage the upper and lower hoses while its warming up to help move the air bubble through. Always works like a charm.
Done.
** Courtesy of LS6427's post in another thread **
