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Go Back > Models > Jeep Grand Cherokee & Commander Forums > ZJ Grand Cherokee Forum > Can't get #6 plug

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Unread 04-23-2002, 08:49 PM   #1
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Join Date: Apr 2002
Location: Arlington, Texas
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Can't get #6 plug

Tuning up a 97 GC 4.0L I6 and can't get to #6 (in front, partially blocked by the a/c compressor). How the heck do you get to it? Luckily I didn't "need" to do the tune-up; just wanted to do it after the K&N FIPK install last night.

Freddy Tran
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Unread 05-14-2002, 02:52 PM   #2
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Unread 09-12-2004, 08:52 AM   #3
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I just did mine coincidental with my water pump replacement. I had the spiral wires and plugs for months now, and this was the perfect opportunity. With the belt off, it just takes four bolts on the A/C compressor to get at the plug. I am also replacing the belt while I have it off.

Once I get the new pump in the next few days, I hope that it will all come back together nicely, leak / squeal free and spark friendly. Right now, the engine looks like a mess all torn apart.

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Unread 09-12-2004, 11:41 AM   #4
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There are two ways that I have done this. One use a “wobbler” socket extension” or use a universal joint with a standard extension.

For replacing the spark plug, stick it on the end of a piece of fuel hose; for geting the first couple of threads started.
Cheers Steve

94 Black Laredo 4-Liter with QuadraTrac (42RE trans & NP249 TC) 200,000 + miles purchased new

88 Cherokee 2-door with 5speed manual 139K miles(deceased) purchased new
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Unread 09-12-2004, 01:27 PM   #5
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Originally Posted by freddytran
#6 (in front
Don't inline engines start with #1 at the front?
1995 5.2 ZJ Sold... but still in the family
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Unread 09-13-2004, 03:03 AM   #6
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Originally Posted by pjm8047
^^What they said. I use a universal joint socket and a 12" extension (its just what I have lying around) to get at it. Works great.

Pic of the type of socket I'm talking about...
~1995 Jeep Grand Cherokee Limited 4.0L I-6 ATX
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