new to me truck, dos and donts
Hey fellas, I just got me a new rig, its a 2000 F250 with a 5.4, I'm a diesel fanatic but here lately diesels have been keeping me in the dumps so its time to resort back to a gasser for awhile.
The truck has 390k miles but the motor and trans have been swapped at one point in time cause they are both oil and grease free. If I could upload pics from my phone I would post some but the mobile version wont let me. So what are some dos and don'ts with the 5.4? Its my first modular motor so I have no clue where to start |
For sure you'll need to stay away from those green nozzled fuel pumps. Habits are hard to break.
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Originally Posted by Army RET
(Post 14914759)
For sure you'll need to stay away from those green nozzled fuel pumps. Habits are hard to break.
Thank you for serving sir. I greatly appreciate you and your brothers. |
Plenty of folks on here have 5.4's with over 500k on the engine, so it is very likely that the engine is the original. Do change the plugs at the intended interval and do so correctly(torque wrench, proper torque, don't force if it feels stuck, etc). Don't use products like stp oil treatment(clogs up oil passages). And don't be afraid to turn over 3,000 rpm just because your diesel wouldn't do so.
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Plenty of folks on here have 5.4's with over 500k on the engine
Not to be unruly but I find that questionable. Did you mean to type 200K? |
Originally Posted by phillips91
(Post 14915350)
Plenty of folks on here have 5.4's with over 500k on the engine, so it is very likely that the engine is the original. Do change the plugs at the intended interval and do so correctly(torque wrench, proper torque, don't force if it feels stuck, etc). Don't use products like stp oil treatment(clogs up oil passages). And don't be afraid to turn over 3,000 rpm just because your diesel wouldn't do so.
The only reason I question the milage is the lack of oil and grease everywhere |
Ok, another question, what's the vest wieght of oil to run, I run castrol in gaasers and rotella in diesels
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Originally Posted by 75Three90
(Post 14916128)
Ok, another question, what's the vest wieght of oil to run, I run castrol in gaasers and rotella in diesels
You mention it being a "modular" motor. Just remember, it's called that only because the factory could change out production runs quickly, creating a modular factory, hence a modular engine. It really isn't any different from most other non-modular engines. |
Originally Posted by r2millers
(Post 14916177)
We run any good 15w-40 Dino oils. Since you just bought it, maybe wanted to really shine er up and thoroughly cleaned the engine compartment. Used car dealers are very good at making everything look new.
You mention it being a "modular" motor. Just remember, it's called that only because the factory could change out production runs quickly, creating a modular factory, hence a modular engine. It really isn't any different from most other non-modular engines. Under the hood has remained the same condition since he had it so I firmly believe the motor and trans doesn't have 390k. So I can run 15-40 rotella without a problem? |
Originally Posted by Army RET
(Post 14916052)
Plenty of folks on here have 5.4's with over 500k on the engine
Not to be unruly but I find that questionable. Did you mean to type 200K? |
Originally Posted by 75Three90
(Post 14916367)
So I can run 15-40 rotella without a problem? |
The spark plug change is the only thing to fear....
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Originally Posted by zimm
(Post 14917241)
The spark plug change is the only thing to fear....
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Originally Posted by phillips91
(Post 14917287)
With the 3v, yes. That was a design flaw. The 2v isn't bad though. If you change them like you do on a cast iron head(start them with the ratchet, tighten until "tight", force them loose if stuck, etc) then you will strip threads or have a plug blow out for sure. If done properly the 2v won't give you any problems.
Only use motorcraft or is there a substitute that can suffice? Is there a way to save the boots or would it be best to change all 8? |
Originally Posted by 75Three90
(Post 14917363)
Ive heard to torque them to 25ftlbs is that true?
Only use motorcraft or is there a substitute that can suffice? Is there a way to save the boots or would it be best to change all 8? I only use motorcraft. They are only $1.50 per plug at advance auto, so not expensive enough to warrant a substitute. Unless it is cracked I just reuse the boot. I had one boot go bad on my van but all the others have been fine. Same for the coils too. Only replace the ones that go bad. Edit-I use an inch pound torque wrench instead of a foot pound for mine too. Most foot pound ones start at 10-15 lbs and aren't very accurate in that range. |
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