Disconnect the battery cables, remove the spark plug cables and covers, and remove the old spark plugs. Next, put in the new spark plugs, attach the covers and spark plug cables and reconnect the battery cables.
THE INTAKE MANIFOLD MUST BE REMOVED. I WAS QUOTED > $600 TO CHANGE PLUGS. I SOLD MINE, AS IT WAS TIME FOR A TIMING BELT AS WELL. ANOTHER $600.
It is a lengthy process that can be found at http://www.monterosportonline.com/diy-perf2.HTML. you have remove the intake manifold in order to replace the spark plugs or the spark plug wires. It's not a recommended task for unexperianced person.
Replacing spark plugs is pretty simple. Disconnect the battery, remove the cover and cables, remove the old spark plugs, put in the new spark plugs, put the cover and wires back on the spark plugs, and reconnect the battery.
I took mine to Tune-Up Masters and I was charged 159.99 because of the extra labor they had to do. On Montero Sports they have to remove the air intake to reach the other spark plugs.
The cost to change spark plugs on a 2003 Mitsubishi Montero Sport typically ranges from $100 to $300, depending on labor rates and whether you choose to use OEM or aftermarket spark plugs. Labor can account for a significant portion of the cost, especially if the spark plugs are difficult to access. Additionally, if other maintenance or repairs are needed during the process, that could increase the total expense. Always check with a trusted mechanic for an accurate estimate.
you hve to pull the upper plentium.i just did it to my 02 3.0montero sport.its a pain, but not to bad if you kno wat your doing.
We have a 1995 Mitsubishi Montero (the people that brought your the fighter ZERO) and when it came time for a tune-up we couldn't get the plugs out. The car dealer here charged us over 500 dollars for a tune up and they had to remove the top part of the engine to reach the plugs, hence the large dollar value. We will NEVER own another Mitsubishi again! Good luck:)
possible bad fuel injector or bad coil.
The plugs are located under the intake plenum. This is a real job because it takes removing several bolts, wires and gaskets to get to them.
Try these websites http://www.monterosportonline.com/diy-perf2.html http://www.justanswer.com/questions/13zdz-change-spark-plugs-2001-montero
THe spark plugs are buried! IT is one of the frustrating designs of this car! It takes a couple of hours for a trained mechanic to do the work and even longer for the untrained. If you have the work done, get the best, most expensive spark plugs to replace them with. I wnt 60K on my first set and am 30K into my second set.
Cost a fortune...down in San Diego, Mits dealer gave me a quote of $450.00 to replace spark plugs and wires. Due to the reasoning that plugs and wires are inaccessible. The said price was quoted today...0430PM/04febCALIF