How do i change my spark pulgs in the back of my 1998 transsport montana mini van? i changed the front three but cant get to the back ones

Hi, I have one too, changing plugs is a pain. for the back three plugs I had to put the van on car ramps and reach up from the bottom. There is not much room, but can be done without having to role motor. Good Luck

change your spark pulgs, pulg wires, air filter, and fuel filter. that would be a good start now do you want to know step by step or what to change

let me know
stockam auto

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The three front ones are simple and the three back ones are challenging. There are two ways to replacing the rear spark plugs on the Montana.
1. If your arms are long enough and you have longs extensions with a spark plug socket with a swivel build in to it, you can get to the plugs from under the Montana.
2. You can get to the rear plugs buy disconnecting the two dog bone engine mounts in front of the engine and tilting the engine forward. You can do this by placing the parking brakes on and disconnecting the dog bone, once that is done. Place your foot on the brakes and take the parking brakes off and push the Montana forward till the engine tilts forward enough to give you the room you need to get your arms over the top of the engine with the extensions and spark plug socket. Make sure you place the parking brakes back on and put a block at the rear of the engine to ensure the Montana will not move back and cause you to loose your arm or head.
Note that you need to keep the transmission in park when tilting the engine and that your going to have to replace the spark plug wires and do everything by touch to replace the rear spark plugs.
Thank you for using Fixya and use platinum spark plugs to give you 100,000 miles of service. Good luck and be safe.

You will need to access the rear plgs from under the van. jack her up and use 2 jackstands and a light. Its a pain , but you can do it!

Quinn

Remove plastic cover over the engine ( three screws).
You then have access to the front three spark plugs (cylinders 1,3,5) remove the nut which holds down the independant coils and remove the spark plugs, fit new spark plugs and fit coils on the three front cylinders.
Now it gets a little tricky, you will only be able to access number 2 back cylinder so you have to remove the induction manifold (12 bolts I think) to access the back three cylinders (2,3,6,) properly.
Then proceed as with the front three spark plugs, refit manifold and plastic cover,

There are a few ways to doing this, and it takes time and a few band aids. You can remove the alternator to give you some room to access the rear spark plug with an extension and swivel spark plug socket. You can also get to the plugs from under neath if you have a ramp and long arm, an extension and swivel spark plug socket will help. You may have to use a 2x4 to wedge the engine to give you some room if you have larger arms. The other way is to tilt the engine forward by disconnecting the two top engine mounts. First replace the 3 front plugs and wire one at a time so you don't cross them. After you have changed the front plugs have a friend help you. Make sure the parking brakes are on and disconnect the two top engine mounts, release the parking brakes and let the transmission in park. Push the van forward slowly to tilt the engine forward far enough to give you room with out pushing it to far in to the radiator. Put the parking brakes on again to keep the van from rolling back and place a block of wood behind and in front of the rear wheels. Don't want to lose an arm. Replace the rear plugs with extensions and a swivel spark plug socket. Note, your going to have to replace the spark plug wire since the rear ones are really hard to remove and pulling on then will destroy them, not worth the headache trying to save them. Use platinum plugs so you can get 100.000 miles before you have to change them again so use anti-seize on the plugs so you can remove them again. Good luck and hope this helps, I personally go from under the van. 

remove the ignition coil pack ( 2 10mm bolts on front of it and 2 13 mm nuts on the back side) u will need a long extension and deep socket for the back ones , and unplug all electrical connectors and remove it from the vehicle and you should be able to reach the back plugs without a problem.

take your tires off the front one side at a time and remove your splash skirt,you can change 2 from there and the other one by removing your cowoling from inside the van.

Same way you changed the front, but harder. You have to remove the air cleaner and hoses, then you can reach around the back side of the motor. Pain in the ****.

To change the spark plugs is not fun. It had took me about 6 hr. First change the front plugs easy. Second undo your two front motor mount bolts and rock the van forward to tilt the motor forward as much as you can but dont over do it. Second take all of your coil packs off so you can get to the back three. No doubt is is a pain and every thing is done blinded just by feel. You can do it. It is no walk in the park though. I will never change myne again I will sell it before I ever do that again. Have fun.