2004 chevy malibu classic idle surges at park and get worse at drive

SOURCE: 2004 chevy malibu classic

Happens all the time to me. I trigger the Theft System by accident then the car won't start.  try this: Put the key in the ignition. Turn it to the "on" setting,but don't try to start the engine. Let it sit for 10 minutes until the Security light stops blinking and turns off. Take the key out and restart. Warning - don't have your lights, radio,etc on while you do this or the battery may die. 

Dennis Mulford

• 1055 Answers
• Posted on Jan 24, 2009

SOURCE: 91 s10 blazer engine surges warm and cold, stalls

tps sencor or maf sencor

SOURCE: rough idle / engine surges until power is applied

Sounds like a possible vaccume hose leak?

SOURCE: 2004 chevy malibu classic spark plug replacement

Search for the engine model ECOTec 2.2 rather then Malibu. It is very easy to replace the plugs, they are DEEP inside the engine so you will need a 6" socket extension for the spark plug socket. Needle nose pliers were required to retrieve the socket on the first plug. Don't push down hard on the plug, just enough to engage the nut. Full screen photo sequence is available at:
http://www.gaownersclub.com/forum/showthread.php?t=99068

SOURCE: How do I replace a headlight bulb for a 2004 chevy

Change headlights in 2004 Chevy Malibu Classic
Open the hood and pull up on the two black tabs on either side of the lamp assembly. Pull the lamp assembly forward gently and unclip the wiring harness. Twist the socket counter-clockwise and remove it. The bulb should be removed by wiggling it.
Install new bulb in its place and turn the socket back into place. Reconnect the wiring harness and return the lamp to its original position. Line up the holes in the lamp assembly to the round ends of the mounting pins, and press down on the two black tabs to hook the lamp assembly into place.