Sometimes air bubbles get in the radiator after lines or the radiator have been removed. Just run it with the radiator cap open, until the fluid starts circulating ( the temp gauge will drop to normal). You can also see the coolant fluid start moving inside the radiator which by the way is a little hard to see since it will be bubbling from running about ten minutes. Watch your temp gauge make sure you don't let it overheat for a very long time. Did you put it in backward? There really is a right and wrong way on those things. no, it wasnt put on backward.... ============================================================================= no, it wasnt put on backward....
Could be a collapsed lower radiator hose, perhaps a bad thermostat.
most likely the timing is off, this affects fuel economy and other things.
The white smoke could be valve stem seals. The overheating could be a partially blocked radiator. Don't bother trying chemicals to clean it out. Take the radiator to a shop and have them professionally clean it. could be a blowen head gasket!
It could be a head gasket or cracked head. With the engine cold, take the radiator cap off and crank the engine. If the head gasket is bad coolant should shoot out of the radiator. 12 inches to possibly hitting the hood.
At this point, I would have your cooling system pressure tested at a reputable garage. This will pin-point the trouble. Don't throw dollar bills at this till you know for sure the real problem.
I had replaced the water pump and radiator. This had continued to overheat but not as bad. After replacing the head gasket it was finally fixed. I was able to answer my own question only after replacement.
A bad radiator cap needs to be replaced as soon as possible. Fluid can leak out causing the car to overheat. Constant overheating can lead to expensive repairs. The average radiator cap costs less than $10.00, so it's worth the investment.
I'm not a mechanic but, I had to replace my radiator to fix the overheating problem on my 1994. That was the last thing I replaced after replacing the water pump, thermostat, and replaced my fan with a clutch fan. have not had anymore problems with it overheating once the radiator was replaced. Flush the coolant first then replace the radiator. Hope this helps.
i would have replaced water pump long before replacing radiator. also check engine oil to see if it has engine coolant mixed in.if it has then the problem is more likely to be a bad head gasket
Is your fan coming on?
There are numerous things that can make a car overheat. It's possible the coolant level is too low, or the electric cooling fan may have gone out. Another possibility is that the thermostat may need to be replaced or the radiator fan switch may not be working right. The car will also overheat if the fan belt is broken or if the radiator is plugged up.
Overheating can be due to several factors. You could have a bad water pump. Check for slight steaming from the water pump, sometimes unnoticable if it's just the seal. Also, it could be a bad thermostat, which if it stays stuck shut can cause overheating. Another factor that is not the radiator is the most costliest of the repairs. If the head gasket blows, what happens is that the car will continue to overheat even if you've replaced the radiator. The loss of compression in the engine causes the car to continuously overheat.
Blown head gastet, radiator leaking, thermostat needs to be replaced Blown head gastet, radiator leaking, thermostat needs to be replaced
One reasons a Subaru Forester may overheat is because the radiator may need replaced. Another reason could be the thermostat.
IF IT WAS NOT OVERHEATING BEFORE THE HOSE WAS REPLACED -- MORE THAN LIKELY YOU HAVE AIR POCKETS TRAPPED IN YOUR COOLING SYSTEM
Inoperative radiator fans, bad water pump, failed headgasket?
Water pump defective.