legacysus

"What common symptoms indicate you may need to replace the Intake Manifold Gaskets? Engine overheats. Coolant leaks. Red, green or yellow fluid underneath car. Engine runs rough. Check engine light is on."

if i have a leak on my air intake manifold gasket would i get bubbles in my cooling system?

i blead the air out once again. i filled the block 1st. then i filled the radiator with the air plug removed. and i burbed it again. in the process of this a found the tip of the radiator adapter that connects to the upper hose stuck in the hose creating a blockage. there is still a small piece missing it must be stuck in my radiator hopefully its not stuck in my heater coil. going to check the flow of the radiator tommorow. car still overheats. can a pressure test be done to check my head gasket?

if i have to much coolant and not enuf water would the car overheat? cause i just did a coolant test and it was of the charts it will freeze beyond -40 i dont have a 50/50 mix right now. it is mostly antifreeze would tat cause overheat?

if i do a pressure test on the engine by using a tool tat connects to the spark plug ports. should i be able to know if the gead gasket leaks? what is the safe amount of psi i can add to an engine? maybe the block has a small crack. im losing oil but very little.

its opens all the way. i even ran the car without the tstat and it still boilsover.

so its been a few weeks and i did some tests and found some problems. even tho i was not losing coolant and noting seemed to be leaking, i did a pressure test at 15 psi and found many leaks. fixed all the leaks and niw the system holds 15psi for over an hour. it still overheats. i was think the system was airlock because i heard in some cars u can only remove all the air if you use an airlift tool that puts the system in a vaccum so u can vaccum fill. i bought the tool and i cant the right amount of vaccum. the vaccum drops fairly fast. i dont get it i can hold 15psi but i cant hold a good vaccum. if there some kind of pressure test i can do to know if i hav a head gasket leak? i dont see any bubbles in the radiator or the res tank anymore. maybe my radiator is clogged any ideas on how to test tat. its looks clean as far as i can see.

i think these bubbles are just steam. just like when you boil water u get some bubbles. if they were combustion gasses then why im not getting any reading while the car is overheating. the liquid in the tester should have turned atleast green for small amounts of hydrocarbon or yellow. but no it stays blue even though the bubbles are appearing during the test while the car is overheating.i dont get it.

ok once again it just overheated. this time i do see some small bubbles in the res tank. i tested the res tank for hydrocarbon as the bubbles appeared while the car was overheating. and still no trace of hydrocarbon. what the smokes is going on here.

ok the car overheated again today. i looked for bubbles in res tank as the car was overheating and there was no bubbles. none at all not even one. the tank filled up almost to the top. i waited and about 5mins after the car cooled back down again.

what if i take the tstat out just to see if the problem will continue? if i take the tstat out and the car still overheats does that mean its not a head gasket leak? im thinking if i take the tstat out it can still overheat with head gasker leak because if it creates a gas chamber around the pump impeller then the pump wont circulate the coolant. what do you guys think? hmmm or maybe no since the pump sits at a preaty low spot in the system and gases normaly rise unless it gets caught.

"A blown head gasket won't present itself all the time, but most likely to do so, when stressed at highway speed, or climbing steep grades. Then, the temp gauge spikes to HOT in a hurry" stress seems to make no difference at all. i push this car very hard everyday. i hit 6k rpm on high way and up hills all the time. but like i said sometimes it will run just fine without overheating for 3-4 days. if im pushing it hard everday why would the gasket not leak for 3-4 days? sometimes it overheats when the car is just sitting there warming up. so stress doesnt seem to make a difference. i havent been adding any coolant, because the res tank does not overflow. it all gets sucked back into the system. ive also tested for hydrocarbon 5mins after the car overheated and still no trace of hydrocarbon. what about the water pump is it possible for a water pump to work Intermittently? can my water pump pulley seize up and then break free? seize up again and break free again? or does that never happen? would the belt just slip past it and keep spinnin?

is it safe to say that if i have no trace of hydrocarbon in my radiator or cooling system then i dont have a head gasket leak? or is it an inaccurate test? "hy·dro·car·bon ˌhīdrəˈkärbən/ nounCHEMISTRY a compound of hydrogen and carbon, such as any of those that are the chief components of petroleum and natural gas."

yes i tested the tstat with boiling water several times. it opens and closes. i noticed bubbles in my res tank one time when it overheated and the coolant started to boil over into the tank. but i dont currently get any bubbles at the moment. im not sure if the bubbles were just steam. or combustion gasses.

2.5l engine