Im wondering how much work is entailed in changing the spark plugs on a 99 mitsu galant. It appears that the intake manifold must be removed to access the back three, and from the looks of the front three they are likley in bad condition. This car has 171,000 miles and is in dire need of some tlc. Is there any easy solution to this problem?
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Find your spark plugs blow compressed air around the plug to get rid of any dirt.Spray some nut buster type spray down by the threads on the plug. If your car has spark plug wires replace them one at a time. If you have coils on top of the plugs back off the two screws a little at a time so the coil housing doesn\'t cock and break. After the old plugs have soaked for about ten minutes put a socket on the plug turn the plug out about a half a turn and tighten back up then back out two turns and go in one. There is carbon on the threads and if you just take them out it could damage the aluminum head.To get to some plugs on a V6 they are under the intake plenum. Remove plenum and re install with new gasket later (It\'s easy). Take your new plugs and make sure thy are platinum or better and gap them for your engine.Put antiseze on the threads. Install the plugs by hand to make sure they start threading right and then torque down.Change air filter if needed
REMOVE TOP ENGINE COVER,REMOVE CYLNDER HEAD CENTER COVER,YOUR WILL SEE IGNITION COILS SETS ON TOP OF SPARK PLUGS.ALL 4 SPARK PLUGS EACH, WILL HAVE A IGNITION COIL ON TOP OF THEM.REMOVE THE COIL SCREW THEN UNPLUG THE COIL ELECTRICAL CONNECTOR.REMOVE COIL, THEN YOU CAN REMOVE SPARK PLUG.YOU WILL NEED A LONG EXTENSION AND A LONG SPARK PLUG SOCKET TO REMOVE SPARK PLUG.
they are correct ,actually this should have been done at 60k, im sure they are referring to the drive belts ,if you are getting this done at the dealer they will use genuine mitsu parts ,but if you take it to an independent garage make sure they use OE compatiable ,quality parts mitsu can be picking about the parts you put in them , esp. trans fluid MUST BE mitsu SP3 !!!!!! and spark plugs must be denso or ngk plugs only no bosch!! or youll be doing again