Question about 1996 Chevrolet Cavalier

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Running hot 1996 chevy cavalier - replaced thermostat, waterpump, radiator cap, drained collant and refilled, bled the lines and the heater works but it still runs hot - HELP

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  • kdh9550 Apr 15, 2009

    The ac doesn't work

  • kdh9550 Apr 15, 2009

    The ac does not work but the fan does come on around that 225 mark

  • honeymokey
    honeymokey May 11, 2010

    coolant sensor or coolant fan motor? Does the coolant fan come on when you turn the ac on? The fans normally come on around 225 degrees with the ac off.

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  • Chevrolet Master
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With engine off feel tge radiator and make sur it is uniform as far as how hot it is feel for cold spotor area thisindicates clogged radiator, if you can get an infa red temp gun even better

Posted on Apr 20, 2009

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  • Master
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Feel the radiator is it getting hot? If it's cold it may be stopped up.

Posted on Apr 15, 2009

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How is the easiest way to change thermostat in 2003 malibu


It is an easy job to do. Get a clean drain pan to drain the collant in so it can be reused. Drain your radiator and then pull the thermostat neck off and swap your old and new thermostat. Be sure you clean the two surfaces that meet for the gasket or o-ring to seal on. Replace the neck and close your radiator drain and refill with coolant. Start the car and bleed out all the air in the system with the cap off and then top off collant system.

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I want to learn how to drain and flush my radiator. I need help on how to do so without making as mess


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Replacing fluids 0n 1996 300zx


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oil: jack up car, find oil plug, directly behind steering rack on oil pan. undo plug and drain oil into container. while oil is draining remove oil filter. wait for oil to drain completely then re-install drain plug and new oil filter(filled with oil) undo oil cap and pour in oil 4.5 quarts on n/a and 5 for turbo. tighten cap and your done.

brake system: dont attempt, use an experienced mechanic as the lines need to be bled in numerous places including inside the car from the abs module mounted behind the passenger seat.
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a/c: do not attempt unless you have an evac pump for ac systems.

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Running hot 1996 cavalier


please try a simple test for me. no.1: remove the radiator cap off the radiator. no.2: if you could see the see the radiator opening from within you car much better, then try to crank your car to an idle. if coolant blows out of the mouth of the radiator like an erupting volacano, then take note of this. no.3: while the engine is running at idle try to look at the coolant through the mouth of the radiator, if you see bubbles like washing your hands with soap and the suds trailing to a drain, then take note of this.

the reason why i'm telling you all of this is that, the coolant should flow like a clear stream. you don't have to worry about purging the system of air because, the water pump is already situated a few inches below the highest water capacity of the radiator. it means that if you drained your system and refiled the radiator to the brim, just start your engine and add a few more coolant to fill it up because the running engine simply purges the waterpump of air.

now, if you tried no.2, and you did see and somewhat like an errupting volcano, that means your engine is in serious trouble, so is no.3. however, a tolerable bubble flow is still possible but your valve clearances should be tuned if this happens. excessive bubbles accompanied by blow out of coolant means your combustion gases are seeping through the head gasket due to a damaged head gasket, warped cyclinder head, cracked cylinder head, or even a cracked cyclinder liner(or bore where the piston glides up and down). think back! did you ever experienced overheating you car to a point where it stalled completely? then, you need a thourough engine checkup.

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1 Answer

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first question is after you changed your hose and refilled while the car was running with the radiator cap locked but loose with the heater on high and set on hot run the car till the thermostat opens shut the car down once it does anti freeze level will drop and air will rise and (extreme caution taken with drain pan below ) start the car use two people run it shut it down let air escape threw cap start again run a couple of minutes shutdown again let cool down take cap off restart car with cap off watch radiator level will somone lightly increases gas peddle refill level to top reinstall cap completely tight then let idle down some vehicles have a small bleeder mounted in the thermostat houseing or in line with the radiator circulation system

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1999 chevy cavalier keeps overheating, changed the thermostat, radiator and hoses are ok what else could it be the waterpump isnt leaking.


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