coolant boiling at about 210
Thread Starter
11 Second Club
iTrader: (17)
Joined: Oct 2007
Posts: 344
Likes: 0
From: pleasanton ca
coolant boiling at about 210 ive got a s10 w/ a basically stock lq4 in it (small 222/222 cam) and the coolant is boiling once it gets right above 210. i put a new 16lb rad cap (stock replacement at local auto store)
i was using a mix of 50/50 coolant and water now im using all water with water wetter (it was doing it w/ both types of coolants.)
any ideas whats up?
thanks, Gary
i was using a mix of 50/50 coolant and water now im using all water with water wetter (it was doing it w/ both types of coolants.)
any ideas whats up?
thanks, Gary
ive got a s10 w/ a basically stock lq4 in it (small 222/222 cam) and the coolant is boiling once it gets right above 210. i put a new 16lb rad cap (stock replacement at local auto store)
i was using a mix of 50/50 coolant and water now im using all water with water wetter (it was doing it w/ both types of coolants.)
any ideas whats up?
thanks, Gary
i was using a mix of 50/50 coolant and water now im using all water with water wetter (it was doing it w/ both types of coolants.)
any ideas whats up?
thanks, Gary
Coolant can reach 270* and it still won't boil over if the coolant system is properly sealed.
And you should never use 100% water, you should have half a jug of Dexcool in there with the water and water wetter.
Did this happen right away after the enigne was installed or have you been driving around for awhile and its been fine, and this just started?
Then I would do this:
Start the engine with the radiator cap "off". Stand there and wait for it to heat up enough until you see the coolant start to flow. Hopefully the level drops quite a bit when the t-stat opens and the flow begins. Simply top it off with more water/Dexcool. As the cooler coolant flows into the block/heads the t-stat will close and the flow should stop. Wait for it to heat up again and start flowing once more. Top it off again. That should get all of the air out of the system.
I would also take the 10 minutes and remove and reset the t-stat. Just take the bolts out, pull the housing away from the block and put it back. Then do the above process.
Start the engine with the radiator cap "off". Stand there and wait for it to heat up enough until you see the coolant start to flow. Hopefully the level drops quite a bit when the t-stat opens and the flow begins. Simply top it off with more water/Dexcool. As the cooler coolant flows into the block/heads the t-stat will close and the flow should stop. Wait for it to heat up again and start flowing once more. Top it off again. That should get all of the air out of the system.
I would also take the 10 minutes and remove and reset the t-stat. Just take the bolts out, pull the housing away from the block and put it back. Then do the above process.
Trending Topics
Well, you will know if the pump is bad when you do the process above. The coolant will never flow.
BUT.....coolant should NOT boil, period. If the coolant system has no air in it and is properly sealed, you will blow a hose off somewhere before the coolant boils over.
BUT.....coolant should NOT boil, period. If the coolant system has no air in it and is properly sealed, you will blow a hose off somewhere before the coolant boils over.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?
Pouria Savadkouei
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo A very fast way to see if the pump is working is to take the t-stat out of the housing and bolt the housing back up. Take the rad cap off, start the engine and it should be flowing immediately. Then you can put the t-stat back in and the pump is ruled out.
Thread Starter
11 Second Club
iTrader: (17)
Joined: Oct 2007
Posts: 344
Likes: 0
From: pleasanton ca
the reason i was asking about the pump was because before i put it on i noticed it had residue comming out of the weep hole but i used it anyways, but it hasnt seemed to leak
Thread Starter
11 Second Club
iTrader: (17)
Joined: Oct 2007
Posts: 344
Likes: 0
From: pleasanton ca
theres no bung off of the radiator to plug it to and it seemed logical (and easy) at the time.
now that i think about it, i think this is the most logical reason where its getting the air from since its like the highest point in the system ill switch it up tomorrow and see if it fixes it
thanks, Gary
now that i think about it, i think this is the most logical reason where its getting the air from since its like the highest point in the system ill switch it up tomorrow and see if it fixes it
thanks, Gary
theres no bung off of the radiator to plug it to and it seemed logical (and easy) at the time.
now that i think about it, i think this is the most logical reason where its getting the air from since its like the highest point in the system ill switch it up tomorrow and see if it fixes it
thanks, Gary
now that i think about it, i think this is the most logical reason where its getting the air from since its like the highest point in the system ill switch it up tomorrow and see if it fixes it
thanks, Gary
And get some Dexcool in there, that will also keep the coolant cooler than just water.
You need to put a reducing tee in the heater hose to connect the air bleed line to. it will definitely not work hooked to the overflow. If you have been driving around like that you may have blown a head gasket also.
Thread Starter
11 Second Club
iTrader: (17)
Joined: Oct 2007
Posts: 344
Likes: 0
From: pleasanton ca
well i fixed it and it seemed to fix the problem as well
why would that blow a head gasket? its not showing any signs of a blown head gasket and still no oil in the coolant and no coolant in the oil so im assuming that they aren't blown?
why would that blow a head gasket? its not showing any signs of a blown head gasket and still no oil in the coolant and no coolant in the oil so im assuming that they aren't blown?
Teching In
Joined: Oct 2008
Posts: 2
Likes: 0
So did you T the heater hose and hook up the bleeder hose there to fix it?
Thanks!