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4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

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Old 08-14-2009
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Post 100k tune-up list

I'm wondering what I should do. I'm at 96k miles and I'll be in FL for a week so I figure it will be the best time since I have to have some work done to it anyway. I know this is in the 4.0L section, but the all the other sections could use the same list.

If anything is missing please let me know. It will be added to the list.

Change diff fluid in both diffs. (4x4)
Spark plugs w/ wires
Trasfer case new fluid (4x4)
Flush trans, trans filter, new Mercon trans fluid (Auto.)
PCV valve
Clean the MAF and IAC
New Fuel filter
Brakes front & rear
Check the steering/suspension components
Check Anti-freeze/Flush if bad/ Check Rad. hoses
Replace thermostat


Oil is new with only 250 miles on it, air filter is a little dirty in the folds but light passes though easily. I think my anti-freeze is good, but couldn't hurt to check it.

My hope is that others will be able to use this list as well when the big 100k rolls around.

Last edited by karrbass4life; 08-14-2009 at 11:13 PM.
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Old 08-14-2009
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Anti-freeze flush? Then fill it with fresh anti-freeze
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Old 08-14-2009
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Change the coolant and the thermostat. It's cheap insurance.
Since it's not that old I'm sure it's fine, but I would have a good look at the main radiator hoses. If they feel weakened in spots or are cracking, it is (again) cheap insurance to do it now while you're changing the coolant.
Have a good look at the balljoints, wheel bearings and tie-rod ends.
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Old 08-14-2009
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Quote:
Originally Posted by brianjwilson View Post
Change the coolant and the thermostat. It's cheap insurance.
Since it's not that old I'm sure it's fine, but I would have a good look at the main radiator hoses. If they feel weakened in spots or are cracking, it is (again) cheap insurance to do it now while you're changing the coolant.
Have a good look at the balljoints, wheel bearings and tie-rod ends.
Bearings and bushings are the reason it's going into the shop. I could wiggle the tires everywhere.

Thanks for all the ideas.
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Old 08-15-2009
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x 2 on the wheel bearings, tie rods and ball joints! I hear ya man, I am hitting the 300 k mark. And mine is missing, time for my tune up haha.
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Old 08-15-2009
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I have about 48k on mine, bought it new and I'm on the second set of front wheel bearings... Good Luck...
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