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Part num is 15727309. Some OEM on Ebay. It is just 1/2" heater hose with a piece of wire loom at the front bend. That's what I do.

Exactly! With the TC not bolted and washers gone can you slide the TC forward until the bolt lugs contact the flexplate?

If B9 is hot in crank then the park/neutral switch on the trans is OK. I have repaired 2 trucks in the past with starter problems due to the PPL crank wire being shorted down behind the starter. One was a short to ground, easy to fix. The other was a short to the glow plug wires, that got...

Has or will the oil be analyzed? Very odd.

If the engine was bumped over with the starter with the IP removed, bad things could happen.

I was concerned about that years ago when I did my first IP. After much trying I could not get it out of time, had TC off for timing set at the time so was easy to check. I just went out and tried again on an engine with the TC loose and was not able to get the gear to jump. BUT, it is very...

Quick note, do not put your weight on the thermostat crossover, they can break off far to easily.

Make absolutely sure the injector lines are correct on the IP, as previously mentioned. It does happen and causes your symptoms. Get the engine harness out from under the intake and inspect it for damage and continuity. It does not have to be under the intake, it can lay on the pass. side of the...

That synchronizer relay is not a normal relay, part #12182086 & pricey. It is a solid state controller that GM put into a normal relay container. The older units actually used a normal relay. GM has people who do nothing but dream up new ways to connect 2 wires and that is the best they could...

Probably the synchronizer relay for a Borg Warner X-fer case. K3500's only.

Looking good!

OBD1 has blue and pink connectors, OBD2 has blue and brown connectors. And the pinouts are different.

It is definitely OBD2.

Search Long or Tru-cool L7B for the trans cooler, H7B for the oil cooler with NPT. OEM - GM 15995536 or 89022535 for the trans cooler.

55U : PRIMARY COLOR, EXTERIOR, LT AUTUMNWOOD ZY1 : COLOR COMBINATION, SOLID

SnowDrift is using the boost solenoid connector to grab 12v. ign. He is using mechanical boost control, so no longer needs that conn. The FSO would work for a relay trigger but I would stay away from any IP circuits, there are other better choices.

It is a Pulse Width Modulated control ground from the PCM.

Fuel Sol fuse. Feeds the PMD and the FSO only. I would avoid tapping into that circuit.

GM 00332364 or Auveco 10831

The mate to the boost sol. conn. is 12162000. Pigtails are - PT786 12167120, PT2373 88862292, AUVECO 23190 There are a few on the truck. The underhood light has one. U-pull-it - many GM cars and trucks. All the connectors on your truck are GM/Delphi/Aptiv.