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changing spark plugs


 
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cherodriver
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Joined: 26 Oct 2004

PostPosted: Tue Oct 26, 2004 5:42 am    Post subject: changing spark plugs Reply with quote

hey ppl,

Has anyone changed the spark plugs on a 2001 grand cherokee laredo? Is it difficult to do (scale of 1-10) ? I need to change the spark plugs on my jeep but I am not sure where to start. I can't find them under the hood.

Thanks for any help on this!
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Buddha_Kip
Member


Joined: 03 Jan 2004
Location: New Orleans, LA

PostPosted: Tue Oct 26, 2004 9:18 am    Post subject: Reply with quote

your wish is my command rofl rofl

change out your crap... about halfway down the page....step-by-step
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cherodriver
Member


Joined: 26 Oct 2004

PostPosted: Tue Oct 26, 2004 10:16 am    Post subject: Reply with quote

Thanks man!

You are a wise Buddha! Do the photos for the V8 apply to the V6 as well?
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swamp boy
Cherokee Muderator
Cherokee Muderator


Joined: 01 Jan 2004
Location: New Orleans LA.

PostPosted: Tue Oct 26, 2004 10:21 am    Post subject: Reply with quote

V6?????

The I6 (4.0 ) is very easy to do.. They are all in a straight line... Very Happy Very Happy
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Buddha_Kip
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Joined: 03 Jan 2004
Location: New Orleans, LA

PostPosted: Tue Oct 26, 2004 2:18 pm    Post subject: Reply with quote

swamp boy wrote:
V6?????

The I6 (4.0 ) is very easy to do.. They are all in a straight line... Very Happy Very Happy


yeah, but have you looked at a newer inline-6 lately? i couldn't even find the plugs (or the wires for that matter) last time i looked under there.
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95sahara
Member


Joined: 08 Oct 2004
Location: Kittanning, PA

PostPosted: Tue Oct 26, 2004 5:11 pm    Post subject: Reply with quote

All the plugs on the 4.0 are under a coil bar. There are three coild for the six plugs, four maybe six bolts hold the coil bar down, then lift it off and the plugs are staring at you. No wires to mess with.
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Code3TJ
Hacker
Hacker


Joined: 01 Jan 2004
Location: Uzbekistan

PostPosted: Tue Oct 26, 2004 9:08 pm    Post subject: Reply with quote

Check out WhatWasIThinkin's write-up - he has some photos of the power rail.
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swamp boy
Cherokee Muderator
Cherokee Muderator


Joined: 01 Jan 2004
Location: New Orleans LA.

PostPosted: Wed Oct 27, 2004 4:41 am    Post subject: Reply with quote

Saw the new Hemi Grand Thursday and they are coil on Plug.. What a pain in the but they are going to be.... Mr. Green

I am going back to do the 24 hour test drive as soon as a demo comes in..

I dont want one I just want to pimp the Hemi.. Dont tell the salesman.. rofl rofl


Oh yeah... Kris.. Sticker on a fully loaded Quadra Drive Limited with a Hemi is $42,000 Shocked Shocked Shocked
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Code3TJ
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Joined: 01 Jan 2004
Location: Uzbekistan

PostPosted: Wed Oct 27, 2004 5:05 am    Post subject: Reply with quote

So are you going to show up on the lot with sawzall in hand? rofl
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CoreyXJ
Turkish
Turkish


Joined: 20 Jan 2004
Location: Louisville, KY

PostPosted: Wed Oct 27, 2004 5:16 am    Post subject: Reply with quote

I can see it now.....



LOL - CoreyXJ
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swamp boy
Cherokee Muderator
Cherokee Muderator


Joined: 01 Jan 2004
Location: New Orleans LA.

PostPosted: Wed Oct 27, 2004 10:46 am    Post subject: Reply with quote

rofl rofl rofl Not even a chance... rofl
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95sahara
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Joined: 08 Oct 2004
Location: Kittanning, PA

PostPosted: Thu Oct 28, 2004 5:33 pm    Post subject: Reply with quote

Another thing to remember when R&Ring the coil bar, I changed plugs on my sister's Grand Cherokee a couple of months ago and boot on plug #3 wasn't seated down on the plug and caused a misfire (and a fault code PO301 (misfire on cylinder 3)) even thought I swear I felt all six click down on and all the holddown bolts were seated the whole way. Just one more thing to look out for.
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Randall
Member


Joined: 29 Oct 2004
Location: Alberta

PostPosted: Fri Oct 29, 2004 9:49 am    Post subject: Hidden plugs Reply with quote

This coil on the plug is not a new idea. The Quad Four in the Pontiac Grand Ams have been using the idea for years since the early 90's/ to reach down and get them out I had a piece of quarter inch gas line (about 5 inches) on a bolt that I could get down in there and finish turning them out and remove them.

It is not a bad idea as it does remove the wires and the routing. The new system sounds like a waste spark situation. What happens in this situation is this. Each piston has a running mate meaning when one piston is on the compression stroke it has a mate that is on the exhaust stroke. When the plug fires at the top of the compression stroke the running mate also has a spark plug firing too but it does not have any effect on the exhaust. In reality your plugs are firing twice as many times than a "normal" system.

Just my 2 cents
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95sahara
Member


Joined: 08 Oct 2004
Location: Kittanning, PA

PostPosted: Fri Oct 29, 2004 2:39 pm    Post subject: Reply with quote

The setup is a waste spark system. Same as a conventional system, just the coils are mounted on a bar, not mounted remotely, and there are no wires, just boots. 3 coils, 6 plugs = waste spark system.
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