If it is Distributeless Ignition check you ignition module
Check the crankshaft sensor. If the sensor on the Grand Voyager is bad then there wont be any spark.
.050 inch
Does it have fuel/spark/compression?
IGNITION MODULE OR COIL/DISTRIBUTOR
Follow the plug wires from the distributor.
If you have no codes start by checking all fuses under hood
Check the under hood label, should be .050 inch.
2.4L - .050 3.0L - .040 3.3L - .050
.050 per tag on strut tower.
check your crank sensor it might need to be adjusted or replaced
Lift the hood, disconnect the battery, remove the spark plug cables and covers, and remove the old spark plugs. Next put in the new spark plugs, replace the cables and covers, reconnect the battery and close the hood.
A person can replace the rear spark plugs very easily. Disconnect the battery, remove the cables/boots and the old spark plugs. Put in the new spark plugs, reconnect the cables and boots, and reconnect the battery.