Your auto parts dealer can give you this information when you purchase your spark plugs. But a 1998 Infiniti QX4 gap is .041.
10w-30
on the bottom of the engine next to the drain plug
To replace the spark plugs on a 1999 Infiniti QX4, first, ensure the engine is cool and disconnect the negative battery terminal. Remove the engine cover if necessary, then carefully detach the ignition coil connectors and unscrew the coils. Use a spark plug socket to remove the old spark plugs and replace them with new ones, ensuring they are properly gapped. Reassemble by reattaching the ignition coils and battery terminal.
To change the spark plugs on a 1999 Infiniti QX4, first, ensure the engine is cool and disconnect the negative battery terminal. Remove the engine cover and the ignition coils by unscrewing their bolts and gently pulling them out. Use a spark plug socket to remove the old spark plugs, then install the new ones by hand to avoid cross-threading, and torque them to the manufacturer’s specifications. Finally, reattach the ignition coils and engine cover, and reconnect the battery.
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)
Not as straight forward an operation as you might hope. First, locate the coil packs. The Infiniti has a small coil mounted on top of each spark plug. This is why you will not see any heavy gauge spark plug wires running from a coil or distributor to the obvious location of the spark plug. The coil packs are bolted down to the block with a 10mm bolt. In many cases other itesm, (air filter assembly, brackets loaded with stuff) must be removed even to see the coil packs. Be very careful with the coils as they are expensive to replace ($50+ each). The coil pack will reach down into the engine 8-10" to where the spark plug actually sits. You will need a long socket adapter to reach in and actually remove the spark plug. To change all 6 plugs, plan to spend about three hours if you have never done this before.
behind the rear tire on the drivers side under the mud flap
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.
after making repairs, use the consult-II to verify fix and light will go out.