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Oil, Oil filter, and spark plugs. Check the air filter for the engine, it is likely still ok, not changed in most cases until 36,000 miles unless you live in a dusty area.
follow the water inlet pipe to water pump the thermostat housing connects to water pump this is for 2.4l engine you have to remove exhaust manifold heat shield.you will see the water inlet pipe going to water pump inlet thermostat housing.for the 3.1 engine follow top radiator hose to thermostat housing you have to remove air filter air duct and filter housing , you have to remove throttle body unit with coolant hoses, you have to disconnect accelerator cable, transmission down shift cables at the bracket bolts to throttle body.once you remove throttle body unit then you can see and remove the thermostat housing to replace thermostat.you need to buy new throttle body gasket,and new small coolant hoses connects to the throttle body unit.have extra gallon antifreeze dexcool on hand.
LOOK UNDER CAR AROUND OIL PAN AREA.LOOK ON SIDE OF ENGINE ABOVE OIL PAN YOU WILL SEE OIL FILTER SCREWED IN BLOCK. TAKE LOOK AT YOUR NEW OIL FILTER THEN LOOK UNDER CAR YOU WILL HAVE A IDEA WHAT IT LOOKS LIKE.BE SURE TO ALSO BUY A OIL FILTER WRENCH.
Hiya...the factory install this block-heater option that's usually installed at the left side of the engine bay area.
Pop open the hood and look around the black square air-filter housing area found at the left side (or at the corner behind the headlight area)
There should be a black wire harness routed around the air filter housing--it may be 'hidden' underneath the air filter area..search around that area...hope it has this feature if so equipped.
You most likely need to replace said Mass Air Flow Sensor (MAFS). If you disconnect this sensor, the ECM uses other sensor data to "calculate" fuel delivery. Problem is, this method is not good for real time- meaning that when you hit the gas pedal, the ECM has to calculate the fuel needed and the engine doesn't rev up right, causing more of a driveability issue.
I've replaced quite a few of these sensors. Be sure to buy a new Nissan air filter when you buy the new MAFS. Even if you do the work, Nissan will want to see that should you have a parts warranty (12 months/ 12,000 miles) claim. No air filter replacement (with a Nissan part) = no warranty coverage.
This is not the most accurate test to use to check the operation of a MAFS, but it usually gives you an idea if you're in the right area- idle smooths when disconnected usually means you are in the right area.
Hope this is helpful!!
Nissan Scope Technician- 10+ years experience in Nissan dealership.
That sounds like an air leak. With the engine running listen for a high pitched whistle around the induction area, if you think you have found one spray a little WD40 in the area, if the WD40 gets sucked into the air leak your engine will run rough for a couple of seconds while it burns off the WD40 and that will confirm an air leak in the area you sprayed the WD40.
Hope this helps, give me a second and I'll post the legend for the numbers.
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