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    P0304 wont go away can it be a Cat?

    As a matter of fact guys no i didnt, previous owner stated he had done plugs a few thousand miles ago..also while looking around i noticed that all of the 8mm hold down screws are not installed on any of the 8 cop/s..so dont know if that could be suspect or if i would throw more 300 codes..so...
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    P0304 wont go away can it be a Cat?

    Hey guys, so heres what the stink (98 expy 4x4, 108k, flow master exhaust, k&n cai sys) driving the other day and noticed a miss and running rough and when it got to overdrive it falls on its face like im running on 3 cyl's...check code/s only coming up with p0304 so i replace coil pack start it...
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    Will the 5w 30 wt work for my 5.4 or stick with the 5w 20wt..does it make a differenc

    Thats no biggie and an easy fix, hell craigslist has plenty of rims and tires even complete matching sets, also make sure your windshield is not leaking and dripping into your vehicle and onto the gem mod. How long ya had it and how many miles onit?
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    Will the 5w 30 wt work for my 5.4 or stick with the 5w 20wt..does it make a differenc

    I hear ya 71rcode about opening that door! Also Ridgerunner when ya bought the ex did ya find any prior paper work or receipt/s for a jiffy lube or a sticker with last oil change on the windshield? If so and the truck is local they might have it on file and tell ya what it was running..if not...
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    Brand Newbie

    Welcome 808! Nice sled..
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    Will the 5w 30 wt work for my 5.4 or stick with the 5w 20wt..does it make a differenc

    How many miles on that older engine and does it currently leak now? From my take is that if you have over 150k on her and have been using non synthetic oil just stick with that program..now if you bought the vehicle and the prior owner has always used synthetic and its not leaking then go with...
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    Hello all

    Aloha! Im in Pompano Beach..
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    front end vibration

    Wheel bearing?? Any grinding or rubbing noises?
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    Rear Airride

    Glad to be of help!
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    Will the 5w 30 wt work for my 5.4 or stick with the 5w 20wt..does it make a differenc

    Boy did i feel stupid today...looked and looked for an oil filter on the block and was wondering wtf i cant find it until out of the corner of my eye i see a white oil filter by the front driver side wheel well! Man whats up with this design? Now take it easy on me gang this is my 1st...
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    New 98 EXPEDITION OWNER

    Lol gas cards are on the list brother! And good to hear your on the west coast of fl.. i make it over there every so often but the diving seems better over here lol..thanks for chiming in!
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    Grinding/Rubbing Sound - Help

    Hey there, so was this sound coming from the front or rear of the expy? Also have you looked at the half-shafts in the front for torn rubber boot/s also might have a front wheel bearing going bad. And did you experience it at all while turning?
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    Will the 5w 30 wt work for my 5.4 or stick with the 5w 20wt..does it make a differenc

    Thats what i thought too 71rcode, that 20w was just to light and here in south florida it seems to always be summer, even in the winter lol..Synthetic iv been thinking about but the the seller stated he never used synthetic (he was original owner) so i didnt know if adding/switching to it now...
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    Rear Airride

    Hey Texas Angel, Strut masters has a coil/shock conversion kit and also Monroe has a kit also for a really good price and got great revies if you go t Amazon they have a kit (part# 90010) for like 200 bucks and thats front and rear conversion....hope this helps
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    Will the 5w 30 wt work for my 5.4 or stick with the 5w 20wt..does it make a differenc

    Good info, thanks. My engine is at 108k so maybe i can wait til i move up to the 10w30 or wait til i hear a knocking noise..lol..but thanks for chiming in!
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    Will the 5w 30 wt work for my 5.4 or stick with the 5w 20wt..does it make a differenc

    Also whats yall's take on running one quart of Lucas oil stabalizer in the system?
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    Will the 5w 30 wt work for my 5.4 or stick with the 5w 20wt..does it make a differenc

    10w 30...any particular reason guys ? Climate, driving contions? Was curious due to specs being 5w20...
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    Will the 5w 30 wt work for my 5.4 or stick with the 5w 20wt..does it make a differenc

    Its a 98...just seen lots of mixed reviews so i thought i would ask you guys
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    New 98 EXPEDITION OWNER

    Thanks for the heads up freeway, yeah i'll prob swith to that once it completly falls on its face lol...btw im in Pompano Beach..thanks for replying
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