2002 Mitsubishi Galant Sluggish Accel

2002 MITSUBISHI
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CHRISTIV
  • MEMBER
  • 1 POST
My Mitsubishi Galant doesn't seem to be firing right. When I step on the gas the car is real sluggish getting going. The rpm's go up but the car doesn't accelerate like it should. I took it to get diagnosed because the service engine soon light came on. The mechanic said that the #2 cylinder wasn't firing right. He said to change the plugs. So, I did. It helped for about 2 days and then started doing it again. I checked the plugs when the engine was completely cooled so I wouldn't strip the aluminum block. The plugs were fine. I'm thinking that maybe the spark plug wires need to be replaced. I don't think it's the ignition coil packs because I know there's 2 of those. One on the #2 and one on the #4 cylinder and if one of those were faulty there would be two cylinders messing up and the rest of the cylinders are firing just fine. So should I try replacing the spark plug wires?
Jun 24, 2006 at 8:27 AM
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BESTBET777
  • ✓Experienced Mechanic
  • 89 POSTS
Check plug gap, check wire resistance, if you randomly pull on the plug wire you may have damaged the wire. Technically it's not wire, it carbon and if you pull anywhere except close to the plug you may have seperated the carbon.
Apr 19, 2007 at 6:45 AM

Suggested Repair

Check the spark plug gap and measure spark plug wire resistance. Inspect the wires for a separated carbon conductor, which can happen if a wire is pulled anywhere except near the plug.

Conversation Summary

A 2002 Mitsubishi Galant 2.4L is sluggish under acceleration, with RPMs rising but little power. The service engine soon light was on, and a mechanic found cylinder 2 not firing properly. New plugs helped briefly, then the problem returned and the plugs looked fine. The owner suspects the plug wires rather than a coil pack because only cylinder 2 is affected. The expert advises checking plug gap and wire resistance and warns that pulling a carbon-core wire away from the plug can separate the conductor.

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