!!! 200,000 4.6 triton preventive maintenance suggestions !!!

Eddie Lanham · May 17, 2018

So my 04 eddie bauer expedition rolled over to 200,000 miles today and i was wondering what i should do to keep her running even longer... any suggestions are helpful! i have the money to put in to the vehicle (as of right now lol) so im all ears!!!! thank you!

Habbibie · May 17, 2018

Fluids changed out
Thermostat, Water pump & radiator hoses
Clean out MAF and throttle body

Not really a lot of to do's if it's running good

johnboneske · May 17, 2018

When is the last time you did plugs? I change mine every 100k and always use Bosch Iridium plugs. Just my personal preference.

Eddie Lanham · May 18, 2018

johnboneske said:
When is the last time you did plugs? I change mine every 100k and always use Bosch Iridium plugs. Just my personal preference.

at about 150,000 i swapped out the original plugs... didnt change the coils though didnt have the extra money

ExplorerTom · May 18, 2018

I'm at 233k miles. Haven't really changed any kind of particular maintenence interval since I went over 200k. Just change things as needed. Be attentive to any noises or hiccups and address them right away. Keep the fluids clean.

Ltmax · May 18, 2018

I'd get the upper/lower intake manifold gaskets changed out, by that mileage they are sure to be rock hard and not completely sealing anymore. I'm sure they'll discover a few other vacuum lines that are either leaking or just about to go bad while it's apart that will ensure another decade of trouble free driving. The two cooling passages that go through the intake gaskets are also very prone to leaking so this will prevent that as well.

Also it wouldn't hurt to replace the two upstream Oxygen sensors as they are probably getting pretty lazy by now if they are original causing the PCM to work overtime trying to maintain optimal fuel air mixtures.

Ltmax · May 18, 2018

Also if you want to triple the life of your transmission you can get a trans expert to drop the valve body and install a super tuff separator plate, zip kit, and new overdrive servo pin kit. That will eliminate all the common failure issues that kill these otherwise rugged transmissions.

Ltmax · May 19, 2018

Here are some pictures of the last 4.6l intake gaskets I did a few months ago on one with 190k miles that wasn't leaking coolant yet (but was just about to) and was running pretty poorly due to top end vacuum leaks.

Eddie Lanham · May 20, 2018

Ltmax said:
Here are some pictures of the last 4.6l intake gaskets I did a few months ago on one with 190k miles that wasn't leaking coolant yet (but was just about to) and was running pretty poorly due to top end vacuum leaks.

View attachment 25190

View attachment 25191

View attachment 25192

View attachment 25193

View attachment 25194

oh boy I’ll get on that

the bus · May 21, 2018

Everything that everyone else said

fluids, vacuum line especially the big elbow one on the back of the intake, cops, plugs, fuel filter, maf, throttle body, and I cleaned the idle air control too. I have had some battery issues over the years and it is a good idea to wash that area and battery down with baking soda. And the biggest thing is to take care of any cel especially any miss fire codes!

!!! 200,000 4.6 triton preventive maintenance suggestions !!!

Eddie Lanham

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Habbibie

Is it Christmas yet?

johnboneske

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Eddie Lanham

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ExplorerTom

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Ltmax

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Ltmax

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Ltmax

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Eddie Lanham

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the bus

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