On top behind the filter hose next to the fire wall on the right side of the engine when facing the front of your SUV. There is two of them that looks a lot a like the first one you see is the egr valve the other one is egr-bt.
Check your EGR valve
behind the rear tire on the drivers side under the mud flap
10w-30
Your auto parts dealer can give you this information when you purchase your spark plugs. But a 1998 Infiniti QX4 gap is .041.
The evap purge valve on a 1997 Infiniti QX4 is typically located near the engine, mounted on or near the intake manifold. It is part of the evaporative emission control system and is connected to the charcoal canister and intake system. You may need to remove some engine covers or components for easier access. Always consult the vehicle's service manual for specific details and diagrams.
where is the IAT sensor located on 99 qx4 infiniti
disconnect lines and hoses and remove fasteners
How many quarts in an infiniti qx4 97
Should be same as QX4 99, 15/city, 19-20 /highway (assuming engine in tip top condition)
The PCV (Positive Crankcase Ventilation) valve on a 1998 Infiniti QX4 is typically located on the valve cover. You can find it on the driver's side, where it is connected to a rubber hose that leads to the intake manifold. To access it, you may need to remove any surrounding components for better visibility and reach. Always consult the vehicle's service manual for specific instructions and diagrams.
Oil filter in an Infinity QX4 1997 is found underneath the engine. The plastic cover that hides the whole engine from below should be removed and there the filter can be seen.
look for it around the egr valve & throttle body. based on the diagram i got, it is mounted on the intake manifold (top of engine; driver side). good luck!