Changing spark plugs - Jeep Patriot Forums
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post #1 of 54 (permalink) Old 09-17-2009, 02:51 PM Thread Starter
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Changing spark plugs

It's about time for a new set of plugs for my Patriot. How much of a hassle is it to do the job myself? Do I need to remove the plastic engine shroud/cover to access the plugs themselves?
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post #2 of 54 (permalink) Old 09-17-2009, 04:28 PM
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None!

That plastic cover over the engine pops right out with minimum effort. It is held in place by rubber grommets. Right underneath it you will find the spark plugs. You will need a #25 Torx for the job.


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Last edited by Kahbrohn; 09-17-2009 at 05:04 PM.
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post #3 of 54 (permalink) Old 09-17-2009, 04:29 PM
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One of the easiest vehicles I have ever seen to change the plugs. The engine cover just pops off, and you need a torx driver to remove the coil packs, the the plugs are down a bit inside so you need a socket extension. Took me maybe 15 minutes to do the whole thing.
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post #4 of 54 (permalink) Old 09-18-2009, 10:23 PM
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Piece of cake. As said, all you need is the right Torx driver plus the needed spark plug socket. I think it took me all of 15-20 minutes, because I always check the gaps of each plug and take my sweet time (don't want to cross thread the things).
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post #5 of 54 (permalink) Old 09-18-2009, 10:51 PM
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dont forget the anti-sieze on the plug threads before installing.
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post #6 of 54 (permalink) Old 09-21-2009, 03:21 PM
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And the engine should be cold. Let it sit over night. so I have been told
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post #7 of 54 (permalink) Old 09-21-2009, 05:21 PM
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Spark plugs...spark plugs? C'mon Europe, help me out here. Somebody must remember those....they're a bit bigger than Glo-plugs and a bit smaller than injectors, that's right, isn't it? And they only have 'em on cars with less than six gears. I'm right, aren't I?

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post #8 of 54 (permalink) Old 09-22-2009, 07:00 AM
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That's sooo funny...Not! Greatest thing about spark plugs, they don't drop coil pieces into the shroud housing. Glow plugs and diesels are outstanding pieces of equipment offering wide ranges of torque. But, they are no fun to customize on small displacement engines...lots more engine toys for petrol as you call here in England. More toys equals more options, more options equal more fun...and in essense pride. All from something six gear cars lack...a sparkplug.
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post #9 of 54 (permalink) Old 11-10-2009, 01:03 PM
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Heading out to the hardware store soon; I have a #25 Torx but it's too small.
Anyone know what size socket I need for the plugs themselves?
I have a 4-cyl., manual
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post #10 of 54 (permalink) Old 11-10-2009, 03:30 PM
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Typical 5/8" spark plug socket should do it and of course and extension to get that socket down in there. Take the advice of letting the car cool overnight before doing this as you know metals expand and contract in temperature changes...Also DO gap the plugs, almost all manufacturers say their plugs are pre-gapped, but it's not too much time to ensure they are correct. The gap spec should be under the hood somewhere(do not have my Pat yet)and if you do not have a gapper, go get one. They are only like $1. Good luck


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post #11 of 54 (permalink) Old 11-10-2009, 11:39 PM
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Be sure to tape the extension to the spark plug socket. That way if the plug binds as you remove it, the extension does not pull out and now you have the spark plug and its socket stuck down in the head. Anyone old enough to remember when spark plugs were called "sparking" plugs?
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post #12 of 54 (permalink) Old 11-11-2009, 12:57 AM
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Does anyone find it odd that at 30K miles, the Spark plugs are supposed to be replaced? When I took it in for my 30K, my owners manual said it required a spark plug change. I myself, am not much of a gear head (I say that in a loving fashion), and the dealer in Orland, CA thought I was crazy wanting the spark plugs changed at 30K. I showed them the manual and they were like..."oh... guess you're right...that is crazy!" This then made me uneasy to allow them to work on my Patriot, as they're a Chrysler (mainly Ford) dealership, and they're unaware of a vehicle's maintenance, which they sell on their lot... I understand that a dealership sells many a vehicle, but before acting like the customer is out of their head... wouldn't you think they'd look it up first? I know that is what I do :-D

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post #13 of 54 (permalink) Old 11-11-2009, 01:58 AM
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That IS a scary thought. If they sell the vehicle, it is safe to assume they service it- I mean you came in, right? So for them not to know the basic warranty intervals is messed up. When I worked in a dealership you would go to the parts counter, give them the work order and if it said 30k, they would bring you everything you need. Each item was listed on the work order. In the system the service advisers the maintenance intervals were already set up, they would just choose it.


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post #14 of 54 (permalink) Old 11-11-2009, 08:11 AM
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30,000 miles seems early or todays electronic ignitions. I sort of hate to say it, but the plugs in my Tracker are still original, and it has over 166,000 miles on it, still runs great, no misses, mileage not slipping, etc.

I just went over 30K in the Patriot, so I guess from what you're saying I should change mine too?

Any thoughts on staying with the OEM plugs, or changing to something better?


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post #15 of 54 (permalink) Old 11-11-2009, 11:27 AM
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The 30K interval is a natural result of the standard resistor type plugs on the Patriot. Platinum tipped plugs can go longer (100K), but some engines seem not the like them- apparently our Patriots don't.

There's a couple other threads on plug types, and the general consensus is that they're cheap enough, just buy the regular OEM type plugs (they're NGK) and change them out every 25-30K. While the thing is likely to keep running with worn out plugs, you'll notice better responsiveness with good condition plugs in there. I think four NGK plugs cost something like $6 at O'Reilly Auto Parts. Let the engine cool off and have at it- you're only talking about a 20 minute job, tops.

As for taping the socket to the extension, it depends on the type of extension you use- I use a Craftsman one with a push button release, and it won't let the socket go unless you press the button.
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