post #46 of Old 10-21-2013, 07:01 AM
cruiser54
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Quote:
Originally Posted by Muddy97Cherokee View Post
Wrong, XJ and TJ 4.0's were different. TJ's used the powertech 4.0.
Nah. It's just a name difference.

And, they changed some block casting/mounting points.


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post #47 of Old 10-21-2013, 07:02 AM
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Originally Posted by zaxfire69 View Post
I paid for 6 plugs...cost me $40.00....look how many I got!!!! Freaking 14 plugs! Get this. Each plug has a $4.00 mail in rebate. $4.00 x 14 is $56.00. I made $16.00 on this deal!

Attachment 767746
I would now sell those crappy Bosch Platinums to someone else and go buy some NGKs.

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post #48 of Old 10-21-2013, 07:10 AM Thread Starter
zaxfire69
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Cruiser I still have the NGK's in my Jeep! I haven't taken them out. I have noticed my jeep doesn't run as hot as it did with the platinum plugs in. It doesn't warm up as fast. I'll run the NGK's for awhile. I have to get the "Orange can of Death" off of it today. I bought a Napa Gold 1515 to put on it. Oil change day today!
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post #49 of Old 10-21-2013, 07:25 AM
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Originally Posted by zaxfire69 View Post
Cruiser I still have the NGK's in my Jeep! I haven't taken them out. I have noticed my jeep doesn't run as hot as it did with the platinum plugs in. It doesn't warm up as fast. I'll run the NGK's for awhile. I have to get the "Orange can of Death" off of it today. I bought a Napa Gold 1515 to put on it. Oil change day today!
Progress. See if your oil pressure seems much different without the OCOD on there.

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post #50 of Old 10-21-2013, 09:43 AM
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Originally Posted by cruiser54 View Post

Nah. It's just a name difference.

And, they changed some block casting/mounting points.
It's more than a name change and mounting points. Have you tried swapping them before? Not so easy.

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post #51 of Old 10-21-2013, 10:09 AM
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The Powertech name applies to all 4.0s 99+ whether they're TJ, WJ, or XJ. They're all the same engine with only minor differences between vehicle models. This is also pretty far off-topic.

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post #52 of Old 10-21-2013, 10:20 AM
Muddy97Cherokee
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Originally Posted by mschi772 View Post
The Powertech name applies to all 4.0s 99+ whether they're TJ, WJ, or XJ. They're all the same engine with only minor differences between vehicle models. This is also pretty far off-topic.
XJ's never used the powertech 4.0. Yes it's off topic but I don't like people being misinformed.

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post #53 of Old 10-21-2013, 10:38 AM
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Quote:
Originally Posted by Muddy97Cherokee
XJ's never used the powertech 4.0. Yes it's off topic but I don't like people being misinformed.
Please inform me about what the differences are in the engine. I had always been under the impression powertech was just a name they decided to give the 4.0.

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post #54 of Old 10-21-2013, 01:39 PM
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Originally Posted by Muddy97Cherokee View Post
XJ's never used the powertech 4.0. Yes it's off topic but I don't like people being misinformed.
Off topic or not, It's something I wasn't aware of. In other words, Tell me what you know. I'm sure zaxfire won't mind.

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post #55 of Old 10-21-2013, 01:43 PM
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Plus this is the non-tech section. Nobody gives a **** whats in here.

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post #56 of Old 10-21-2013, 01:52 PM
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I ended up buying the stock copper ones.. EVERYONE SUGGESTED them even the auto guy who drove a 98 XJ himself said get these.. I have to post pictures THERE WAS NOTHING LEFT to the lead on the plugs.. I mean it littlerly had to be sparking on the metal inside the plug itself.

The only thing is I replaced them, my wires, my dist cap and I still bet misfires after idling too long. AND OR if I first start the jeep and drive down my block and make a wide right hand turn shell misfire 2 times and pop out of it..

Very strange. I did the tune up thinking that was the issue. Even did new fuel filters.

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post #57 of Old 10-21-2013, 03:01 PM Thread Starter
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Somebody make the price of oil go down. Man oil is high.
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post #58 of Old 10-21-2013, 03:08 PM
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Originally Posted by zaxfire69 View Post
Somebody make the price of oil go down. Man oil is high.
Alright, I'm on it.

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post #59 of Old 10-21-2013, 04:10 PM
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Originally Posted by mschi772 View Post
The Powertech name applies to all 4.0s 99+ whether they're TJ, WJ, or XJ. They're all the same engine with only minor differences between vehicle models. This is also pretty far off-topic.
Yep. External block castings only.....

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post #60 of Old 10-21-2013, 10:57 PM Thread Starter
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Since nobody gives a rip what is in here..I'm changing to the Napa Gold 1515 oil filter in the morning. I usually put 6 quarts in..Will I need to put a little extra for the larger filter? Running 10w30....
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