How do you change the back 3 spark plugs on a 2003 Pontiac Grand Prix?
The engine must be tilted forward. Why are you changing spark plugs on a 2003 engine. These plugs do not need replacement until 100,000 miles. For more detailed directions, follow the instructions for changing the plugs in any 3800 engine in the grand prix '97 and up listed in the grand prix forum. Hope this helps. "G" You need to remove alternator, and undo forward engine support to get engine to go forward. It is a tight fit but it can be done. I even did it with just alternator removed. Have fun
To change spark plugs a person must start with a car that is off, then disconnect the batter. The person must then remove the spark plug cables, remove the spark plugs, and replace them with new spark plugs. After that, one must put the spark plug cables back in the correct order, then connect the battery.
I have the Grand Am GT with the 3.4L engine. There are 3 "Right in the Front" and 3 buried so far in the back that you either have to have really really small hands, or I think that they are accessible from underneath and behind the engine through the opening for the drive shaft. Whoever thought this was a good location for spark plugs is more than welcome to stop by and help me…