Replacing the radiator system for nissan altima 1998
Hello Guys, i own a nissan altima 1998 and have found myself suddenly driving in a cloud of fumes because the radiator is spraying coolant on the engine manifold :). I would not mind getting my hands dirty but would like to know what tools and equipment I need ready before I start tinkering around, If anyone could help me with the sequence of removing a radiator, All help is appreciated.:)
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Trapped air in the coolant might cause that. Is there a coolant air bleed screw on or around the thermostat housing? Crack it open with engine running and see if any air comes out. If no air bleed screw, find a fitting in the top most place on the engine that is in the water passages-the air if any will be at the top. The temperature gauge sender might work: if you loosen a fitting, just crack it open so air could escape, engine running. Once only coolant comes out, tighten the fitting. Don't know what else would cause the gauge to float, unless it was heating unevenly. How hot does it get? Overheating or not? If the engine is running hot, consider having a block test- a simple test, should be inexpensive, where they test for exhaust gases in the coolant, drawing radiator fumes into a container with a special fluid that changes color in the presence of hydrocarbons. And you know what that means: leaking head gasket.
No AC will not make it overheat... first thing i would do is replace the thermostat,sound like the problem if there is no leak and coolant level is full.....hope thjis helps and if so please rate this post.
Park the Nissan Altima on a flat surface and set the parking brake. Next, open the hood and check the external temperature of the radiator. If the radiator is warm to the touch, wait for the radiator to cool before you continue.
Twist the radiator cap one turn to relieve any pressure. Step back from the radiator and allow a few seconds to pass, and then completely remove the radiator cap.
Place a bucket or tray with at least a 2-gallon capacity underneath the radiator and below the drain plug. The drain plug on a Nissan Altima is on the passenger side bottom of the radiator.
Loosen the drain plug and let the old coolant drain completely into the bucket. Take care while loosening the drain plug, because it's plastic and can be brittle. Pour the old coolant into a sealable container for proper disposal later and put the bucket back under the drain plug opening.
Close the drain plug and pour distilled water into the radiator until it's full. Then, open the drain plug and let the water flow into the bucket. Keep repeating this procedure until the water runs clear and debris free into the bucket. You will need at least 3 gallons of distilled water.
Make sure to tighten the drain plug and fill the radiator with fresh coolant. Refill the radiator to within an inch of it overflowing. Check the drain plug and hoses for any possible leaks.
Start the Nissan Altima and turn the heater to the high setting. Let it run for about 10 minutes and shut the engine off. Check the coolant level and refill, if necessary. Finally, put the radiator cap on and close the hood.
It may be the thermostat, but you should also check:-
1) Coolant level is at correct level (full) when checked cold- prior to running,
2) Cooling fan/s are running normally as they should when coolant temp rises,
3) A coolant hose on the suction side of the water pump is not collapsing (due softening) causing restricted coolant flow,
4) Radiator coolant core is not blocked, or radiator heat dispersion air fins blocked with insects/grass,
5) Engine does not have other running problems that cause it to overheat.
first off make sure the car has cooled down from its last drive then remove the radiator cap now look at the bottom of the radiator you should see an odd looking white screw that sticks out remove this screw it is the drain for the coolant make sure you have a bucket to dispose of the coolant once it has drained get your garden hose and flush it out then refill it
f.y.i. coolant is very sweet to the taste but it is very poisonous so make sure you do not leave it out for any cats or dogs because they will drink it and die
You will need to pour the coolant directly into the radiator. To do this the engine must be cold or you risk burning yourself when removing the pressure cap. Fill up the radiator to the top and then add more to the overfolow tank. Make sure you push the cap down to close and twist the cap so the cap will not come off