And then shoot the horse.

Friday, my Dakota decided to run on only 3 cylinders. Of a V6 motor.

Today, I was able to verify a failed injector (TBI).

Nobody has one in town.

Boneyards in town have one - ONE - TBI Dakota.

Fiveo Motor Sports has two new Bosch in stock; but that'll be Thursday or so to get in.

No O-rings.

The o-ring on the failing injector is loose and won't seal on a re-install.

You ever have a day you want to swap the truck for a horse, and then shoot the horse?

New O-rings ordered; new injectors ordered (doing both injectors).

In the meantime, I'll be borrowing wheels.

RwP

 

What did the horse ever do to you? I don't recommend shooting the truck either.

I would be tempted to grab the entire throttle body from the yard, and just install it as a unit. (after a thorough cleaning.....)

 

Not so much; this one is an under-30,000 mile reman'ed unit. Out of warranty, though.

If I grabbed it, it'd be to rebuild it completely.

I'm STILL putting the new injectors in later this week; I just want one for Monday and until the weekend.

RwP

 

Two injectors from the 1991 5.2 in the boneyard (mud daubers had built nests in the throttle body in years past - nope, not gunna!) and my Dakota runs.

New ones shipped from Five0 so I'll have new proper ones in sometime Friday at latest.

And I now have an inventory - 1 PCM that doesn't fire the driver's side injector, one that is shorted and fires the PASSENGER side all the time, and one that works right.

I see I have my winter cut out for me - decoating, backwards engineering, locating replacements, and figuring out how to fix them.

But eh. Now, it runs.

RwP

 

Long ago I discovered that there were many tbi shower heads used across models. The 4 bangers used 1 of the same ones that the 6s and 8s used 2 of. There were many colors of them, each color injector was a different rate of feed. When I had my 88 d 100, it had a 318. I went thru the local boneyard and pulled injectors from about half of the omnis and reliants that they had at the time. As I remember my 90 Dakota with it's v6 had richer injectors than that 318 took. Among the 4 bangers, they had every possible injector made those years in seemingly identical cars. I experimented with several of them on both the 88 and the 90.

I hated the tbi setup from 88-92, with a passion. The 90 Dakota was the only one that did not give me fits. My son has an 89 ramcharger that we switched to a carburetor on because of how problematic that fuel system was, I sold my 88 because I was so tired of throwing good money after bad trying to keep up with the tbi. That was my worst ever fuel mileage vehicle owned to date. My 78 D300 was better on fuel than that 88 was. Bigger engine, lower gears, 6 tires worth of friction on that dually and it was a hog but cheaper to run than the 88 1/2 ton short bed that I had. My son also has a 90 w 250 with a 360 tbi and we had our issues with that one too but not quite as bad or as frequently as that 88 had.