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A couple of issues with the 7.3 you need to be mindful of.
1. Keep the oil clean. Change that oil every 3-5k miles religiously. The injection system uses oil pressure to activate the injectors themselves. Dirty oil will either hamper or clog the injector system.
2. The CPS (crankcase position sensor), these can go out but are very easy to replace. Many chain auto parts stores will have them in stock.
3. If you have a '96 or earlier, be mindful that the revised and increased the size of the glow plug timer/controller that sits on top of the engine. The early models had this little wimpy looking thing but was later replaced by a much more substantial glowplug relay. If you can, upgrade to the newer relay.
4. Injector pressure: since these engines run a direct injection process, the injection pressure is going to be much higher than an indirect injection process. Be sure that the biodiesel or WVO you plan on using is very very clean, even a speck of trash can ruin an injector.
Hope these little tips help. Personally, I like the 7.3 but I've never been a fan of engines with computers on them, I like to keep things simple.
If my 6.9 gives up on me, I may consider getting a 97-99 Powerstroke.
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The POWERSMOKE
1986 F250 4x4 XLT Lariat Explorer, 6.9 with Hypermax Turbo and cowl induction.
221k miles and climbing, C6 Transmission. Gear Vendors. Dual tanks with 50 gallon tank added to bed, locking canopy. Dana 50 TTB with Ford 10.25 rear and 3.55:1 ratios. Running B100 with no ill effects. Homebrew BioD. 80 gallon biodiesel processor with custom machined vacuum venturi
1973 Dodge Monaco aka 'Elwood', 64K original miles, Dodge steel cop rims with dog-dishes. 400 B-block with single exhaust, due for dual exhaust. Up for sale.
Other wheeled 'secret weapons' in the works.
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