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2000 Ford Explorer 4.0 SOHC Life expectancy

Discussion in 'Stock 1995 - 2001 Explorers' started by mthurmerm, January 6, 2013.

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    1. mthurmerm

      mthurmerm New Member

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      City, State:
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      2000 Ford Explorer XLT
      I bought a used 2000 Explorer XLT with the infamous 4.0 SOHC Motor. I have had 5 Rangers, all with 4.0 OHV engines. All gave great service, lacking in the fuel mileage dept.
      When I bought the Explorer, (With 175,000 Miles on it) I went in without doing my homework (Can't beleive I did not check) and did not know of the problems the SOHC had. When I test drove it and picked it up from a Ford Dealer, the engine was warm and really ran great. The very next day, I had a really bad cold start idle, jumping and such. Took it to a friend of mine who is a Ford Tech, had to have all new Intake O-Rings put in.
      He also told me all about the timing chain issues. Bottom Line, It was mine and I had to deal with it. I noticed probably 6 months later, rattling when I first started, maybe 5-10 seconds, then it quieted down.
      I have driven now to 198,000 miles. It still has the rattle for about 5 seconds on a cold start, besides that, does great. I guess my main concern, how many miles can be expected for the life of the SOHC, On Average.
      I know, it could blow tomorrow, but I guess I need some encouragement. I have never owned a vehicle with 200,000 miles on it.
      The Explorer is really a nice vehicle, Leather interior, cold air, great appearance.

      Everybody look into the crystal ball !> Thanks
       
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    3. Peck

      Peck Active Member

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      honesly bud with that many miles i can bet the timming chains have already been changed out
       
    4. albi1cnobi1

      albi1cnobi1 Elite Mountaineer Elite Explorer

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      The rattle at cold start is the hydraulic chain tensioners.Not a big deal, there is a TSB for them. I can't recall the number for it but it is an easy fix. I have the SOHC in my mounty with 220k, bought it new and changed the oil every 3k. If taken care of hopefully you'll get a long life out it.
       
    5. kevinspann

      kevinspann Active Member

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      I would have had the hydraulic tensioners replaced, at least the front one when the intake was off. And had the 00M12 or whatever TSB checked for/done.

      What oil filter do you use? One with an anti-drainback valve would be preferable.
       
    6. mthurmerm

      mthurmerm New Member

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      Thanks everybody, Yesterday My Brother in Law and I put a rear driveshaft , replaced both ujoints. FYI That thing was vibrating to me in the front I would have bet $ 100 it was the front Driveshaft, but it was the rear drive shaft, One Ujoint, one end had not a single needle bearing in it. That was comforting when I was running down I-75 going to Chattanooga at 80 MPH, Good Lord sure was watching over me Also they were original non lubricating, The SOHC runs so good I can't give up on it....Mitch
       
    7. mthurmerm

      mthurmerm New Member

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      Also I am going to have to save my money and replace the Headlight lenses and the marker lights around them, rough shape. By the way that stuff the sold on TV to clear the lenses did not work..Remember, "But Wait, there's more" \
       
    8. koda2000

      koda2000 Explorer Addict

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      if it only rattles for a few seconds at start-up, replacing the hydrualic tentioners with the 00M12 kit will most likely solve the problem. the tensioners (there are 2) springs seem to weaken after about 75K and typically need replacement. my SOHC '01 xlt is approching 185K and it rattles horribly at start-up, and sounds like a diesel when running, but it's been doing that since i bought it almost 2 years ago showing 129K on the speedo (no idea what the real mileage is as it has a salvaged title). i've since learned my lesson and have purchased 2 more gen II's (both V8's) which i'm super happy with.

      also: always use a quality oil filter (like Motorcraft or Wix) with an anti-drain back valve.
       
    9. albi1cnobi1

      albi1cnobi1 Elite Mountaineer Elite Explorer

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      I replaced the headlight assemblies on my mounty with replacements from rockauto. http://www.rockauto.com/catalog/moreinfo.php?pk=1377586&cc=1363980 They were $23.79 each. Good quality for the money.
       
    10. koda2000

      koda2000 Explorer Addict

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      +1 on replacing the headlight assemblies. don't waste your time (and money) trying to restore them. and members can get 5% off at RockAuto by using a discount code.
       
    11. mthurmerm

      mthurmerm New Member

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      Koda 2000, don' we have to pull the engine to even replace the tensioner, It has got to be a terrible piece of work, thanks, mitch
       
    12. albi1cnobi1

      albi1cnobi1 Elite Mountaineer Elite Explorer

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      I think what koda is talking about is the hydraulic tensioners not the cassettes or chains, which the rear cassette does require the engine to be pulled. The tensioners are mounted externally, one in the front for the right cassette and one in the back for the left cassette.

      Check out this thread. http://www.explorerforum.com/forums/showthread.php?t=271605 It shows the procedure for replacing the tensioners. Don't worry about the stuff about the timing chains, he was doing his chains too.
       
      Last edited: January 21, 2013
    13. koda2000

      koda2000 Explorer Addict

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      As stated, you don't have to pull the engine to just change the HYDRAULIC tensioners, or the front chain guide (if you're doing that too). some have even managed to change the front cassette without removing the engine.
       
    14. masospaghetti

      masospaghetti Well-Known Member

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      Instead of buying new headlights, use 1500 grit sandpaper, wetsand, you will see the yellow melt away, then use an orbital buffer and plastic polish to restore their clarity. Follow with headlight UV protector.

      I've done this on a bunch of vehicles and works great. Slight upfront investment but IMO well worth it.
       

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