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How to drain water and coolant from engine block on a 1994 nissan sentra

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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emissionwiz
  • 76164 Answers

SOURCE: engine block coolant drain plug location

They are on the side of the engine block, there will either be a pipe plug or a sensor in the threaded hole(s)

Posted on Aug 25, 2008

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  • 169 Answers

SOURCE: Engine block coolant drain plug

Unfortunately g.m. screwed the knock sensor into the drain port on the block. It is on the rear of the engine between the eng. and the trans.. If you are flushing the system out then just remove the thermostat (also under the car on the bottom of the engine) and flush the system out. anticipate the water left in the system by adding aprox. 1/2 gallon of straight coolant concentrate before adding the 50/50 mix. Good luck ,hope I helped

Posted on Aug 30, 2008

pal03246
  • 726 Answers

SOURCE: 2001 Nissan Sentra Block Heater

You can't find one, because it doesn't have one.

Posted on Dec 17, 2008

bitchn65cuda
  • 70 Answers

SOURCE: locate fuel filter on 2007 nissan sentra 2.0 liter engine

its in the gas tank but it doesnt have to be changed!!!YAY

Posted on Apr 25, 2009

  • 819 Answers

SOURCE: 2002 Nissan Sentra 1.8L Check Engine Light Low Coolant

check out the coolant temp sensor.

Posted on Nov 12, 2009

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1 Answer

Will an air pocket in the coolant system cause it to overheat or over pressurize on a 2001 Nissan Sentra ?


1. The radiator cap if working correctly it will release pressure in the system provided the cap you have is the correct pressure setting. If you are having a problem with pressure then replace the cap with a new radiator cap with the correct pressure setting. Do not use a cap with a pressure setting other than the original equipment pressure spec. So you do not go to the parts store and buy any radiator cap on the shelf that fits because they come with different pressure ratings and some of these will be totally unsuitable for your car.

2. If the pressure valve is stuck in the "old" cap the pressure release system will not work.

3. Overheating
Air pockets in the cooling system can definitely cause overheating and can retard coolant flow through the system. If you are draining the radiator to replace the coolant or replacing the radiator you need to follow the correct procedures for bleeding air out of the system for that particular engine after coolant refilling. Some engines have bleeder screws on the cooling system to assist in the air bleeding procedure and some don't.

There are various causes for overheating so don't assume it will necessarily be solved by bleeding any remaining air from the cooling system and replacing the radiator cap with one that works.

Other causes can be...........
1. Faulty cooling system thermostat. (Replace the Thermostat)
2. Faulty water pump, especially if the impellers have corroded away or have disintegrated in the case of those design genius water pumps with plastic impellers. (Replace the water pump)

3. Cooling fans not working and if so the cause needs to be tracked. Check that your fans are kicking in. If the engine is overheating the fans should be running because they will switch on when the coolant reaches a specific temp and well before the coolant gets excessively hot.

4. A partial blockage in the coolant passages inside the engine but not in the radiator if you have a new one. If the coolant is not changed at the required intervals(frequently the case with many owners) or is over diluted with water you can get a build up of debris. If products like stop leak have been used in the system this can create similar problems with partial blockages inside the engine coolant passages.

5. A compression leak into the cooling system.
If you have bled air from the system and have continuous air bubbles in the cooling system I would suspect a compression leak. In that event a basic leak down test will show if you have compression gasses leaking into the cooling system and from which cylinder(s). The spark plug is removed and compressed air is forced into the cylinder via the spark plug fitting and air bubbles will show up in the coolant of there is a leak into the cooling system.
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Have the problem with overheating addressed immediately. Running the engine with an overheat condition will cause expensive engine damage many times the cost of fixing the overheating issue.

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Dec 29, 2015 | Nissan Cars & Trucks

1 Answer

Replace heater core in 2001 nissan sentra


1) Drain engine coolant. 2) Remove all cowling under the centre of the dash for access to the matrix.3) Remove two water pipes from matrix.4) Disconnect heater matrix valve cable.5) Remove matrix being careful not to spill water over the ECU.
Reverse instructions for refit.
6) With heater turned to maximum heat, top up cooling system with 50/50 anti freeze/water ratio.
Run vehicle and check that the radiator is free of all air and that the radiator fan cuts in when hot.
Run the car and recheck coolant level over the next few days of running in case of leaks.
Check under dash in case of leaks.

Nov 14, 2012 | 2001 Nissan Sentra

1 Answer

Replacing a thermostat on 2004 nissan sentra


  • Prepare for the replacement by disconnecting the negative battery cable and draining the engine coolant into a container--you need to remove the drain plug from the radiator first and then the drain plug at the engine block.


  • Remove the engine's cooling fan by loosening the fan/water pump pulley nuts, unclipping and removing the fan shroud's lower half, removing the water pump pulley nuts and pulling the fan out from underneath.

    Disconnect all components blocking access to the thermostat by removing their bolts. On four-cylinder engines, this includes the air cleaner, air intake duct and the power steering pump's support bracket. On a 3.3 liter V6 or SOHC engine, remove the upper radiator hose from the intake manifold's coolant outlet.

  • Slip off the drive belts blocking the thermostat by turning their tensioner bolts with a wrench or breaker bar. On a 3.3 liter truck or DOHC engine, follow this by removing the upper idler pulley bracket. On a 3.5 liter engine, remove the water pump drain plug from the front end of the block.

  • Detach all hoses from the thermostat housing cover by loosening the hose clamps with pliers; this usually includes the lower radiator hose. This is only needed on V6 engines; you will keep the hose attached on a four-cylinder.

  • Remove the thermostat housing cover by removing its bolts. There will be some coolant spilling out when the gasket seal breaks.


  • Disconnect and remove the thermostat from its cover by removing its screws. Take note of how the thermostat is positioned within the cover.

  • Scrape away all traces of gasket or sealant from the housing and cover and clean the surfaces with lacquer thinner.

  • Apply RTV sealant around the edge of the thermostat cover. You need to re-install the cover within five minutes of applying this sealant.

  • Mount the new thermostat into the cover in the same position the old thermostat was in.

  • Re-install the thermostat cover and all other parts in reverse order of installation.

  • Wait a half hour for the RTV sealant to cure before refilling the engine coolant. Use fresh coolant if the old coolant is contaminated.

  • Mar 20, 2011 | Nissan Sentra Cars & Trucks

    1 Answer

    Thermostat replacement 1994 nisan sentra 1.6 eng how to remove and replave


    JUST DRAIN COOLANT LEVEL BELOW THE THERMOSTAT. CATCH COOLANT IN A DRAIN PAN UNDER RADIATOR.THEN REMOVE RADIATOR HOSE FROM THERMOSTAT HOUSING ON THE CYLINDER BLOCK.THEN REMOVE THERMOSTAT HOUSING AND THERMOSTAT.CLEAN THERMOSTAT HOUSING SURFACE AND THERMOSTAT HOUSING SEALING SURFACE ON CYLINDER HEAD.INSTALL NEW THERMOSTAT IN PLACE,MAKE SURE THERMOSTAT AIR BLEED HOLE FACING LEFT SIDE UPWARD ON THE ENGINE.SOME THERMOSTAT HAS TOP STAMPED ON IT.MEANING MUST BE FACING UP.WHEN THERMOSTAT IN PLACE.TAKE NEW THERMOSTAT GASKET.PUT SEALER ON BOTH SIDES OF GASKET.THEN.PUT GASKET ON THERMOSTAT HOUSING.THEN PUT HOUSING IN PLACE TORQUE HOUSING BOLTS 16 - 20 FT LBS.WAIT 1 HOUR UNTIL GASKET SEALER CURE.THEN FILL UP COOLANT SYSTEM.BLEED COOLANT SYSTEM AND CHECK FOR LEAKS.

    Sep 17, 2010 | 1994 Nissan Sentra 4-Door

    1 Answer

    Nissan LEC 1994 sentra water leak problem


    check your radiator if theres a bubbles while your engine runnin, if theres bubble, it means you overheat. check your cylinder head for warps... also check your fans...

    May 09, 2010 | 1996 Nissan Sentra

    1 Answer

    My nissan sentra 1994 turns over but will not start has gas oil coolant and everything else


    locate the fuel rail (where the injectors are) there should be a test port on there. take a pen and push the little valve core in. If fuel comes out with good presure you know you have fuel. If not you probably need a fuel pump. Next remove a spark plug, with it plugged in groung it to the engine block and have someone crank the motor. You should see spark, if not you probably need a distributor or ignition coil. The last thing to test if everthing was OK is to do a compression test on 1 cylinder to make sure you have adequate compression 100 pounds usually.

    Apr 28, 2010 | 1994 Nissan Sentra 4-Door

    1 Answer

    Trying to locate the coolant temperture sensor on a 2003 nissan sentra gxe


    Engine coolant temp sensor should be on the drivers side of the engine block. Follow your top radiator hose from the radiator to the engine block. near that you should see a sensor (it has a clip on it where the wires attach).

    Feb 16, 2010 | 2003 Nissan Sentra

    1 Answer

    Nissan sentra 1994 use termostat


    if you're referring to the thermostatic valve in the coolant line, then yes, yes it does have that. it's located at the end of the upper radiator hose (return line) close to the engine. it's inside of what may look sorta like an elbow pipe.

    Dec 29, 2009 | 1994 Nissan Sentra 4-Door

    1 Answer

    How do i replace the thermostat on a 99 nissan sentra


    Follow the top hose from the radiator back to the engine block to see the thermostat housing. Open it up to replace the thermostat inside. Make sure to drain the radiator first before remove the hoses. Put in the new Coolant.

    Dec 24, 2009 | 1999 Nissan Sentra

    1 Answer

    My sentra eccs 1992


    -if the smoke came out after more than 5mins maybe when your try to drain the water (that has coolant)
    some of it spill on your cars engine or headers, this will cause a white smoke becasue of the heat that
    your engine generate the water evaporates

    Aug 06, 2008 | 1992 Nissan Sentra 4 Door

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