Question about 2001 Pontiac Montana

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Need to do 100,000 mi maint. on my 2003 Pontiac Montana

Can't access the back 3 spark plugs. Dealer wants $350 to change them and is saying the don't need to be changed. I think there is a problem getting to them and they have probably had trouble doing it so they are discouraging it. Has anyone done this before?

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  • honeymokey
    honeymokey May 11, 2010

    The take them out from underneath while on a lift.



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  • Pontiac Master
  • 3,433 Answers

Corvettes had an issue like this. Had to access plugs through fender well after removing the wheelgood luck

Posted on May 21, 2009


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I don't know where the plugs are in my towncar. 4.6 2001. I have a miss in the motor . I have not had it tuned up as they say you can go 100.000 . I have 93,000. Or should I take it to the shop?

No where does it say you can go 100,000 miles on any product

Spark Plugs ---get changed at 60,000 miles & not over 3 years
O2 Sensor--- the front ones only-- get changed at 100,000 miles
Trans & Power Steering Fluids --- get changed on ALL Vehicles
every 30,000 miles NEVER over 3 years ( ever )
Brake Fluid --ALL Vehicles every 2 years

No such thing as a tune- up (spark plugs --only)
Computers have done the tuning since 1980 some 32
model years

Plugs are under the COP Ignition Coils
Remove Coils,then Plugs

Jul 24, 2011 | Lincoln Town Car Cars & Trucks

2 Answers

How do you Replace the Spark Plugs on a 1999 Pontiac Montana

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.

Jul 20, 2010 | 1999 Pontiac Montana

1 Answer

I need to change the back spark plugs

hard to do I know
A swivel 3/8 socket wrench, a foot long extension and a spark plug socket will be needed to do this. You must feel for the plugs as well in the blind or have a mirror handy

Jun 16, 2010 | 2003 Pontiac Montana

1 Answer

2003 Pontiac Montana, how do you get at the rear spark plugs.

This is the 3.4 motor correct? If it is then you can either get at the from the bottom. Or you can loosen the motor mounts in the from and rock that motor fowards so you can get at them from the back

Apr 17, 2010 | 2003 Pontiac Montana

2 Answers

How do I change the spark plugs? There are 3 in the front of the engine and 3 in the back. I cannot reach the 3 in the back. Any secrets?

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!


Jan 23, 2010 | 2002 Pontiac Montana

1 Answer

Changing sparks plugs in a 2000 pontiac montana

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.

Jul 04, 2009 | 2000 Pontiac Montana

1 Answer

Any suggestions on changing back 3 plugs



May 15, 2009 | 1999 Pontiac Montana

3 Answers

Spark plugs for 2004 FX35

U can wait for at least 100,000 miles, that is the factory recommended change mileage, they will last much longer than that, but it depends on how u drive, allot of stop and go will mean the 100,000 change, longer if u drive long distance.

Jan 06, 2009 | 2004 Infiniti FX35

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