4.0 3rd gen | Ford Explorer Forums - Serious Explorations

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4.0 3rd gen

  1. R

    Any suggestions/personal experiences with life expectancy?

    My 2004 XLT has 182,500 miles on it and im wondering if there is anything y'all would recommend to do/add to it to keep it in working order. The engine still runs and sounds great and it hasnt had any major issues or repairs. I want to keep it running good as long as possible. Also looking to...
  2. R

    Any recommended mods/tuning i can do?

    I recently was gifted a 2004 Explorer XLT (4.0 V6 Cologne) and im curious if there is any recommendations for mods and whatnot i can do to get better mpg or performance. Anything goes, free or costing money. I havent owned a car this old either so im not sure if there is anything recommended to...
  3. C

    Quick Question

    I've mated my transmission and motor to my 2005 ford explorer successfully.I now have to torque the torque converter bolts.When i put the SUV in neutral and spin the motor by hand using a ratchet.I noticed that it take a little more muscle power to spin the motor.When it spins over...
  4. C

    Need Input ASAP Please

    I am in the currently waiting on more FORD OEM parts. I remove a 2003 ford 4.0 SOHC motor and it had a timing chain loose as a two dollar. So i had no choice but to fix that issue. Due to my using the wrong bolt to press off the crankshaft pulley.It got stuck in side the crankshaft pulley and I...
  5. J

    Knocking/Taping sound coming from engine bay.

    Hi Good morning y'all, I'm posting this because this knocking/taping noise has been driving me crazy, some may say it's the timing chain, but said thing was replaced less than half a year ago, I would really like to know if any of you experts have a solution to my problem. I attach the video...
  6. L

    Opinion - Timing Chain Replacement (2007 4.0L)

    I'm looking for an opinion on whether or not it's worth it to have one or all timing chains replaced on my 2007 Explorer 4.0 with 186k miles. Truck is in very good shape for it's age and mileage, and no indicators of tranny problems or anything else major. But I began hearing the typical...
  7. W

    2003 4.0 slight overheating issue?

    Hi everyone I have a '03 4.0l that for the better part of 6 months I've been fixing different problems on, coolant leaks being of them, and this is the latest in the saga. so at the end of may this year, my car developed a coolant leak. which was 'fixed' by reseating the thermostat o-ring which...
  8. C

    2002 Ford Explorer 4.0 SOHC Low Oil Pressure

    Hi, I just rebuilt my 2002 ford explorer 4.0 SOHC engine at 180,000 miles. I replaced all the bearing, gaskets, oil pump, timing set. The main bearing clearances are .002, .002, .0015, .002. After the rebuild when hot oil pressure was dropping to 3psi at idle in gear. After replacing the pump...
  9. S

    4.0 unknown issue need help

    my 2003 explorer xlt has a replaced 4.0 V6 motor and tranny and currently has a little over 100k on the motor and 125k on the tranny the body has almost 200k. i was driving this morning and i started it up and usually it would make a loud clanking noise in the flywheel area anyhow this time it...
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