4.6 | Ford Explorer Forums - Serious Explorations

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4.6

  1. J

    2006 4.6 V8 overheating in winter only

    So my 06 Mountaineer has had a strange overheating problem for a while and i can’t tell if it’s a true sensor reading or not. This car is my every day daily driver and for the entire summer season, the car started and ran every day, taking 2 hour trips twice weekly without fail. come the cold...
  2. 1

    2003 Explorer 4.6L oxygen sensor circuit problems

    I recently picked up this 03 Explorer with the 4.6L in it, the odometer says roughly 198k. I bought it pretty cheap so I've been fixing things and sorting out the bugs. Up until now the fixing has all been mechanical, bearing assy's, upper control arms, latches, hinges, etc. Here's the deal...
  3. CallMeSyd

    Please help! 4.6 Squealing not serpentine related.

    Just picked up a 2004 Explorer NBX today with a 4.6. Bought it from a girl who says she changed all the coil packs and when she went to crank it, it now has a squealing sound coming from the driver side valve cover area. Someone checked the codes but cleared them and it has not been run enough...
  4. C

    Intermittent Oil Pressure [4.6]

    I haven't posted in a while. I have a 2004 EB 2WD Explorer with a 4.6L engine. I love it, but it's getting a lot of miles and has some issues. I'm in Upstate NY, but the truck is from GA, so no rust. Anyway, I was driving about a month ago and noticed some unhappy lifter noise. I looked at...
  5. D

    2008 v8 Explorer 6R60 trans issues

    Last year my trans was shifting in and out of overdrive. Took it to a shop. They said there were metal shavings in the pan and OD gear was going out. They installed a remanned transmission. Everything was fine for about 8 months until it started shifting down to 1st gear prematurely. I took it...
  6. C

    Possibly looking a 4th Gen. What Issues Should I Be Aware Of?

    While I greatly prefer First-gen Explorers, They are getting hard to find in the area I'm looking with the equipment I want. I was just punching different years on CL and seeing what pops-up. I saw a nice Eddie Bauer V8 model. It looks really good. I specifically want Eddie Bauer package...
  7. J

    Can I replace a 06 intake with newer model year intake on a 4.6?

    Hello ya'll. I have a 2006 Explorer with a 4.6. The intake I currently have is the plastic top with the bottled on aluminum charge motion plates. It currently has a leak that I believe is coming from the charge motion plate seals. My question is, can I replace the intake manifold with one from a...
  8. B

    6R60 Fluid Refill After Cooler Line Leak - Info Needed

    Hi to all, First post on here but I've been searching & learning about my Trac but I do need some help on the correct fluid and fill procedure once I fix the leaky line (o-ring?). I have read that there is a fill plug and mini dip stick on the passenger side of the trans and the fluid must be...
  9. T

    Bank 2 sensor 1 pissing me off. HELP

    2004 4.6 how do I get the damn sensor unplugged and off? It’s in a tight space, and the tab is on top which I think was an asshole thing to do by Ford. I can’t mash it, my 9 year old daughter can’t even get her hand in to push the tab. Do I just break that rubber mount? Or is there a way to get...
  10. C

    2004 EB 4.6 Explorer A/C Turns off & Back On at Random

    In November, 2016, I got a new compressor installed. It worked flawlessly until just now. One day, about a year ago, it wouldn't turn-on. I didn't have pressure guages with me in Milwaukee, but I checked fuses/relays and no dice. At the end of the day, it magically started working again and...
  11. 2

    Getting great MPG over 200K miles

    Hello I have a 2004 4.6 explorer with a little over 200K on it. Currently getting around 20 mpg at 70mph cruise control and wanted to see if anyone has any tips on getting a few more miles to the gallon. I use Mobil 1 high mileage, just changed front and rear diff fluid, transfer case fluid, air...
  12. J

    That catalytic game, 02 4.6 limited.

    2002 Explorer 4.6, if read tons of stuff about exhaust for them but I haven' found a real answer on something. If you were to remove the cats, replace them with straight pipe then installing the o2 sensor in the same relative spot would the system work with no CEL? And with that being said...
  13. D

    2008 Mercury Mountaineer 4.6 AWD (Ford Explorer) Engine Replacement

    I am having to replace the engine on a 2008 Mercury Mountaineer 4.6 and am looking for any advice, recommendations, tricks and instructions. We've already grabbed a used engine from a local salvage yard. I should be able to get the instructions off of All Data but was wondering if anyone had any...
  14. W

    Used Explorer Problems

    I bought a 2004 Explorer 4.6L AWD with 130k, and there are a few problems I'm having with getting it to drive properly. I've been through the forums and have found potential remedies to a few of the common problems I'm experiencing, such as replacing the transmission solenoid pack, servo bores...
  15. N

    4.6L engine knock after new belt tensioner

    2003 Merc Mountaineer Premier 4.6 The engine was knocking about 3 weeks ago and it was determined the belt tensioner failed so i changed that. I didn’t change the belt at that time. Now a few weeks later the engine is knocking but I can’t ID where it’s coming from. Its definitely a knock (not a...
  16. P

    03 explorer 4.6 how do I I'd trans

    Like the title said which Tran do I have
  17. S

    03 4.6 BAD MPG... NO CODES?

    Hi all! I am a new member, so forgive me if I mess up on making this thread. I have had this problem with my 03 Explorer (150k) for a good 5 months now (since I got it). It is a RWD and has a 4.6 and the 3.73 LS axle. I've been getting pretty bad gas mileage, about 9-12 mpg. No CEL and no fluids...
  18. B

    Electronics Delay After startup

    Hello, I have a 2002 ford explorer XLT 4.6. After starting up my vehicle there is about a 10 second delay before any of the cab electronics work. This includes windows, radio, wipers. I replaced the ignition switch but it didn't have any effect. Any ideas?
  19. P

    Water In Spark Plug Well Solution

    I have been meaning to post my experience with this but keep forgetting. Got on here tonight and the top post was about this same issue. So I made a quick video. The only ignition coil I have had go bad was the number 8 cylinder coil. Which is the one that used to get water in it. The water...
  20. S

    05 XLT 2WD 4.6 Engine swap

    I have started the process of pulling out the 4.6 v8 from my Explorer. I am going to be putting in a used one with a about 130K on it. What kind of things should I change when I put in my new one? So far here is what I have listed AC Recharge Fuel Injectors Fuel Filter Spark Plugs & Wires...
  21. C

    2002 4.6 engine swap

    this is my first post on this site. Hi everyone. I came across a 2002 Explorer with a 4.6. Only 150k on it. It was allowed to run dry, no water, and the top end is blown. Metal chips in the pan also. I want to replace rather than rebuild at this point and am finding that this vehicle may have...
  22. J

    4.6 Upper Intake Gasket Part Number

    Hello Everyone, I'm in the process of rebuilding my 2006 4.6 I have taken the intake manifold apart to clean out all the oil and carbon. I separated the plastic intake from the charge motion control plates and wanted to replace all the gaskets. My question is does anyone know the part number...
  23. J

    For Sale Set of 8 ignition coils - 4.6L V8 | 8W7E12A366AA | DG-508

    Brand new, OEM coils, purchased to put in my truck, engine ended up burning a valve and I got rid of it. Ford P/N: 8W7E12A366AA MotorCraft P/N: DG-508 $180.00 shipped
  24. J

    Rear Evaporator Pre-Screen

    The compressor on my 4.6 with auxiliary controls failed and it spread metal chips throughout the system. I know in the front system there is the orifice tube which has a screen, but I was wondering if the rear system is screened and where? In the shop manual it says there is a screen at the...
  25. G

    changed iac valve, now revs to 3k rpm on start up

    i just changed my IAC valve on my 2002 4.6, i changed it because of rough idle. when i took the old one off it was missing the spring. but now it idles fine and runs smooth. but on startup it revs to almost 3k rpm for about 5 seconds then drops to normal idle rpm. is this normal? kinda freaked...
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