Originally Posted By: andyd
The Rat is my first Ford in nearly 30 yrs. I have had no trouble with its 4.0 push rod V6. I started with flathead V8 and early OHV V8s Junk, compared to the 4.0. Ford I 6s were also known for their quality But the Ranger.design wise, was engineered entirely for assembly and sale. Other than a few drain plugs it has no "service-abiliity"
I was looking for a 4wd T100. I settled for a '94 Ranger project. Most of the stuff it needed was normal 20 yr old car stuff. But replacing the needed parts was waay more difficult than anticipated. I joined a Ranger forum and kinda wish I hadn't. Holy cow, heads cracking, plugs spitting and 6 hr plug R+Rs, leaky intakes.Luckily the 4.0 is largely immune from these troubles.
I think a lot of the trouble, though, is the shop you're taking it to. As it is out of warranty, maybe an indy shop would be better.
I can't think of any Ranger that takes 6 hours to do the plugs on, even the 8 spark plug Limas. Plugs on mine take 30 minutes if you take your time.
Spark plug spitting isn't something I've heard of happening on Rangers. What engine have you heard of this happening on, the Duratec? Most Ranger engines have cast iron heads, so spitting a plug would be very unlikely unless there was some installer error.
The only Ranger engine I know of that was prone to cracked heads was the 2.9 V6, and that was last used 22-23 years ago.
Leaky intakes happen on everything.
The only thing that really scares me with my truck is if the heater core goes out. That is one job on this truck I really do not care to tackle at all, nor do I really want someone else disassembling my entire dashboard. Most everything else is pretty straightforward and accessible. Changing oil, trans fluid, and diff fluid are super easy. All filters are easily accessible and can be changed in a few minutes except for the trans filter. Serp belt takes 5 minutes. Battery takes 5 minutes. I had the radiator out and in in about an hour.
Some of it may just be what you are used to though, and I learned on Fords. As far as serviceability, most Toyotas beyond a Corolla or 4 cylinder Camry (pre-canister filter) would not be my first choice, in particular the trucks. Toyota likes to put oil filters in interesting places, then cover them up with about five or six skid plates. 4WD 3.4L Tacomas and 4Runners are the absolute worst. The only real favors Toyota gave on those trucks were auto trans and differential drain plugs. They did seem to make up for it with the 4.0L though. Still, not all (or even most) Toyotas are service/repair friendly.
As far as basic maintenance goes, doing things on a GMT800 truck may be quicker/easier than anything else that has been on the market in the last 20 years. There's tons of room everywhere, everything is accessible, and things are generally straightforward on them. GMT900s are pretty good in this respect too. The pushrod engines leave a lot of room under the hood. I hate doing maintenance on Modular engine Fords in comparison...spark plugs and oil changes are much worse on the Fords (messy filter location unless it has the factory relocation under the bumper).