i replace radiator and now my coolant resivor starts boiling and i over heat
I replaced radiator after trying a stop leak that was for blocks and radiator and now I still over heat and now a new problem has occurred my coolant resivori is boiling on top of overheating
My car has 230000 miles.
My car has an automatic transmission.
Experienced mechanics share their insights in answering this question :
When you put in the stop leak, you may have blocked some passages and the thermostat. I would remove the thermostat and the lower radiator hose, then run clean water from a hose through the engine and radiator to flush out all the stop leak.
After flushing the entire system out, then install a replacement thermostat and reinstall the lower radiator hose also. Once this is done and the system is refilled with new 50/50 coolant, then you should not overheat.
If it continues to overheat after this then you may have a blown head gasket.
How to Identify and Fix Common car Problems ?
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One of the most common causes is a blown head gasket, in which the air pressure inside the cylinder heads is transferred to the cooling system. This escaped air causes bubbling in the coolant/antifreeze reservoir, which can often be mistaken for boiling.
If your coolant reservoir is boiling but your engine doesn`t overheat, then your coolant may not actually be too hot. Those bubbles you noticed are more likely air bubbles that found their way into the coolant reservoir—not from the piping hot coolant. In most cases, the issue is actually a leak in the radiator cap.
Why your car is overheating after new radiator. The most common reason why your car is overheating after radiator replacement is air getting trapped inside the cooling system after the installation process. You may also have forgotten to plug in the temperature sensors or cooling fan after the installation process.
Coolant goes into the reservoir tank as it expands. The cap is released by the pressure and the coolant is sent toward the overflow tank. If you have a bad cap, the coolant will get released too quickly and cause the reservoir to boil over.
Over time the limescale and sludge builds up in your central heating system, potentially blocking the pipes to your radiator. When this happens, a rumbling noise (like a boiling kettle) or even a banging noise starts to occur.
One way to check for proper coolant circulation is to check the upper and lower radiator hoses. The upper radiator hose should be hot, around 190–200 °F. (The safest and most accurate way to get this temperature reading is with an infrared thermometer.)
Top tip – After removing your radiator and replacing it for a new one, it`s a good idea to go around and bleed all the other radiators in the system as air can move through pipework and cause your central heating system to make annoying banging sounds.
Start your car`s engine and allow it to idle. Look through the radiator filler neck to see if the coolant flows. At this time, it should not be flowing as your car has not reached the operating temperature to cause the thermostat to open. If you find the coolant is flowing, it means the thermostat valve is open.
If you`re seeing an overflow, it could be due to a radiator cap, thermostat, water pump, or radiator malfunction.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
i replace radiator and now my coolant resivor starts boiling and i over heat
ANSWER : When you put in the stop leak, you may have blocked some passages and the thermostat. I would remove the thermostat and the lower radiator hose, then run clean water from a hose through the engine and radiator to flush out all the stop leak.
After flushing the entire system out, then install a replacement thermostat and reinstall the lower radiator hose also. Once this is done and the system is refilled with new 50/50 coolant, then you should not overheat.
If it continues to overheat after this then you may have a blown head gasket.
Fuel pump engages. Batery good, alternator good volts, jump start helps when wont start. Temp does not matter. Intermittent?
ANSWER : Hello. Thank you for writing in. There are several reasons your vehicle may only start when jump starting. The first and most common is a build up of resistance that is causing you to need a boost of voltage to get the engine started. This may be due to poor battery cables, a bad ground connection, a poor starter solenoid, and a couple of other issues. The first thing you want to do is perform a visual inspection of the starting system. Make sure there is no corrosion build up in the battery cables. You can also check the resistance across these wires and make sure you have a solid connection between components. You then want to make sure the starter solenoid is doing its job. It is responsible for taking the small amount of electricity sent by the ignition and turning it into a huge electrical charge that is strong enough to push over the engine with the help of some gear ratios in its favor. Do some more testing, and stick to the basics before assuming its something seriously complicated.
Over heating coolant not siphoning back into coolant over flow tank
ANSWER : Hey there:
It’s common for many mechanics to make the mistake of mis-diagnosing the cause of an overheating situation; especially when they assume it’s a thermostat issue. The problem could be caused by a blockage in the coolant tubes running from the radiator to the overflow tank and back to the radiator. However, it also may be due to air trapped in the coolant lines. I think a good idea would be to contact a different ASE certified mechanic, such as one from YourMechanic, and have them complete a coolant flush, which should remove any blockages in the coolant tubes and may solve your problem.
No coolant in the reservoir. Seen low coolant message. I added 2 quarts of 50/50 coolant. Still getting the message. How much coolant doe it need?
ANSWER : Hi there. For the coolant light to go out, you would need to have the coolant between the low line and the full line for the light to go out. If the coolant is low and keeps on being low, then look for any signs of coolant leaks. You may have to use a coolant pressure tester to pressurize the reservoir to allow the leak to be found.
If you need further assistance with the coolant being low and the warning light being on, then seek out a professional, such as one from Your Mechanic, to help you.
Vehicle won’t start, once it’s jump started it only stays running until you turn it off, then it work start again without jumping.
ANSWER : Hi there. There could be two problems here. It is possible that your battery is bad and will not take a charge from your alternator while driving. In that case every time you shut your car off you will not have enough juice to start it again. Inspect your battery – it should have at least 12.5 to 13 volts to start your car, if it doesn’t you will need to replace the battery. The second problem could be that your alternator is bad and not charging your battery, in this case you will need to replace your alternator. Both the battery and the alternator can be tested in your car. If you would like to have the car checked for you, a certified professional from YourMechanic can come to your car’s location to diagnose the starting problem and proceed with repairs.
Car ran hot losing power, pulled over put water in radiator car wouldn’t start, replaced radiator, still won’t start
ANSWER : When you overheated the engine you most likely blew a head gasket and now have low compression in one or more cylinders. Replacing the radiator after overheating the engine that lost power will not fix the fact that the overheating warped the cylinder heads and coolant leaks past the cylinder head gaskets. If you need help with this, a technician from certified mechanic from YourMechanic can come to your car’s location to diagnose your car’s starting problem and conduct any needed repairs.
Green coolant accidentally mixed with red coolant
ANSWER : Hey there. The two coolant chemical compositions are different and may cause corrosive action or gelling of the mixture. If it becomes corrosive, it may damage gaskets and metal components in the engine. If the mixture becomes gelled, then it may clog the engine, radiator, thermostat, and heater core passages. The coolant should be drained as soon as possible and flushed out with water a couple times then put in fresh 50/50 mixture of correct coolant. A certified technician from YourMechanic can assist with a coolant flush and perform any other adjustments at your home or office if needed.
When I start my car it doesn’t start after the jump start it started but later it didn’t and the battery was last replaced on 9/2012
ANSWER : As you may know when jump starting the car, the battery power provided is being supplied form the other car you are using to jump your car with. If the car does not start following the jump, this would suggest your battery may be dead and needs to be replaced. If the battery was last replaced in 9/2012, it is most likely time for a new battery as that is a decent amount of life for a battery.
