Join Date: Oct 2009
Location: North Port
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7.3s are very reliable and almost bullet proof
Best years are 96-03 ( 94-95 had HPOP drain back issues)
I have worked on these with 600k on them most of the people around here have 190-300K and they don't have any problems.
Common problems are Up pipe gasket leaks, IDM failure, Injector o-rings, EBPV leak and tube cloughed ( not a big deal only used when cold for warm up), valve cover harness, and FPR screen cloughed. And 94-97 trucks had a recall for a cruise control deativation switch on the master cylinder burning the truck down. Replace the tranny fluid and filter every 30K and you'll have no problems.
In my opinion I have 2 a 96 with 195K and a 94.5 with 256K and have no problems I had a starter go out in the 94 and a water pump in the 96 other the PM I havent ever been stuck on the side of the road.
Compared to Cummins with the killer dowl pin, touchy VP44, Transfer pump issues, and front end issues
And GM 6.5 with the injection pump control box that burns up, headbolt problems, head gasket issues. 6.6 Duramax Early engines had injector issues, EGR cooler blows up ( all years), Electronic issues dash faults, HPFP problems