Some people will remove the two front motor mounts (dog bones) and with the car in park push the car forward to rotate the engine and apply the parking brake to hold the car. (Carefull not too far and damage the radiator) If you can get your eng to rock forward, that gives you more room in the rear to remove the back three plugs -this is the easiest way. Or with alot of patience and small hands (because there just isn't much room behind the engine) a swivel and an extension. I would recomend that you replace the plug wires at the same time because the boots usually break when you remove them and with the engine rotated forward they are easier to get at. When re-installing the new plugs, it is important to make sure you get several turns on the plug before putting a wrench on it. The last thing you want to do is cross thread a spark plug. The new plugs should almost bottom out before requiring a wrench. Dont skimp on plugs and wires, pay the extra $$ for premium (OEM) and save yourself some headaches and performance problems. (source: http://www.grandprix.net/) Hope this helps. G
how to chang spark plugs in a 1992 Pontiac grand prix
Check you spark plugs. Probably going to need to replace them.
You must loosen the top motor mount and tilt the engine forward.
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Give it a tune up. Change the spark plugs and wires..
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remove what?
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