Spark plug tube seals

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Spark plug tube seals

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Mitsubishi Forums >> Mitsubishi Models >> Mitsubishi Galant >> Spark plug tube seals

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Spark plug tube seals - 10/9/2007 6:22:48 AM

gonzo1980

Posts: 6
Joined: 10/6/2007
Status: offline

I have a 99 Galant 2.4L. I was wondering if a leaking spark plug tube seal could cause a cylinder misfire when the engine is cold. I am finding oil around top of plug wire and base of spark plug. Service engine soon light is on and the only code is P0301 cylinder 1 misfire. Wires and plug are both new. Only misses when cold, runs fine when warmed up. Any help would be great.

Post #: 1

RE: Spark plug tube seals - 10/9/2007 7:45:16 AM

RMUDBUGS

Posts: 312
Joined: 11/15/2006
Status: offline

Yes it can, because it causes the wires to fail. Did you change the boots under the coils when you changed the wires? If not you need to. With the miss fire code you need to replace your valve cover gasket and tube seals then put in new plugs, wires, and boots.

MD310913 VALVE COVER GASKET $16.27
MD198128 TUBE SEALS                       $ 9.85 EA. (4)
MS851357 SPARK PLUGS                    $ 3.60 EA. (4)
MD338624 CABLE SET                         $68.88
MN158977 COIL BOOT                        $17.68 EA. (2)

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06 Raider XLS Lava Red V-8 2WD 4DR
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-Spray in bed liner

(in reply to gonzo1980)

Post #: 2

RE: Spark plug tube seals - 10/9/2007 10:04:35 AM

gonzo1980

Posts: 6
Joined: 10/6/2007
Status: offline

I did not change the boots, didn't know I could. Still learning about this car, really love it though. I had changed the plugs and wires(not the boots) and it ran great for a week, then started the misfire when cold, not sure why just when cold though. Sounds like you might be on to my problem. The part #s & prices are they dealer?

(in reply to RMUDBUGS)

Post #: 3

RE: Spark plug tube seals - 10/12/2007 7:28:04 AM

RMUDBUGS

Posts: 312
Joined: 11/15/2006
Status: offline

YES

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06 Raider XLS Lava Red V-8 2WD 4DR
-AEM Brute Force Intake
-Front Tow Hooks
-Spray in bed liner

(in reply to gonzo1980)

Post #: 4

RE: Spark plug tube seals - 10/16/2007 12:38:34 AM

gonzo1980

Posts: 6
Joined: 10/6/2007
Status: offline

Well, I have replaced the valve cover gasket, tube seals, coil boots, plug wires and plugs. I am still getting the same hesitation when the engine is cold and the same error code, cylinder 1 misfire. Any ideas or help would be greatly appreciated.

(in reply to RMUDBUGS)

Post #: 5

RE: Spark plug tube seals - 10/16/2007 6:06:01 AM

RMUDBUGS

Posts: 312
Joined: 11/15/2006
Status: offline

I don't know. 9 out of 10 times it's a plug wire or boot.

_____________________________

06 Raider XLS Lava Red V-8 2WD 4DR
-AEM Brute Force Intake
-Front Tow Hooks
-Spray in bed liner

(in reply to gonzo1980)

Post #: 6

RE: Spark plug tube seals - 11/13/2007 12:55:16 PM

gonzo1980

Posts: 6
Joined: 10/6/2007
Status: offline

I learned a lesson on this one. Don't assume new parts are good. Found out the "new" spark plug in #1 cyclinder was bad. 1st swapped the coil packs to see if misfire would follow, it didn't. Then swapped plugs and misfire followed. Replaced the "new" plug with another new, has been running great for almost a month now. Frustrating lesson learned!

(in reply to gonzo1980)

Post #: 7