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I appreciate the observation but, I’m going to disagree on all the above. Nothing is banging on anything else externally. These heads replaced the old units that did have valve issue and the issue existed before the exchange. I’ll check on a restart for anything pushing out the air cleaner...

Have been either sick, on the road or in a complete ‘screw it’ mood for the whole month. Decided to address the issues of the smoky start by replacing the glow plug wires with the new set from ZombieSolutions and to test the glow plugs themselves starting on the passenger side to get that...

Private tests on various glow plugs done in shop by Heath Diesel years ago. 10v power applied to the plugs with timers to see how long they lasted before failure. No name or ‘insta heat’ no name brands lasted maybe an hour or two at best. 60G plugs lasted a a day or so of continuous energizing...

Can we assume correctly that by ‘just plugged it in to see if it ran’ you mean you had the new PMD mounted on to a heat sink the whole time you were testing it to see if it ran? Just making sure.

Confirm the advice on fuel pressure at the Fuel Filter manager. A quick and dirty way is to use an inexpensive pressure/ vacuum gauge. Replace the hose with a long enough length of 1/4” line to run from the T-Valve and up to the windshield. Tape the gauge securely to the windshield so you can...

After breakfast with BigT, I came home to see that the truck was providing a much needed service by collecting leaves from the Honey Locust tree.

Auto Spell Correct correction: The tires from S. Korea are NEXENs, Not “Nextel.” Auto Correct; Just one more of the technologies making my life less enjoyable…. Thought about Injectors too so, I have a new set that I want to get tested before swapping in. The current set of Duraturm’s have...

If you’re referring to the clear line void of fuel, correct.

Notice while up in MT last summer trying to be of help to Big-T that my first starts were starting to have a little smoke. Hmmm Acrid diesel smoke that cleared up quickly as engine came to life. It was kinda hit and miss up there but, when it ‘hit’, the smokewas getting a little worse. Longer...

Correct. GM designed the fuel system so the tank maintains a low pressure state. The low pressure is created by the LP pulling fuel and then pushing it to the injection pump. That low pressure assists in pulling the return fuel back to the tank. FWIW, I recently learned that the IP’s internal...

Glad you’re getting better Amigo. Healing takes time. Take it easy, get better at your pace.

I like the new site Amigo. Signed up for an account.

You might want to check the windshield seal for signs of deformity, age etc. causing leakage around the sides and bottom. Difficult to ascertain but, its possible. Leaks at the tops running inside would be visible inside the glass (current issue of my own). The further up the firewall the...

With Reference to BigT's Picture (edited) Green to Brake booster Yellow to Brake Booster Red runs out the front to the P.S. Cooler .

Pulley pulling is easily done with a pulley puller from your favorite parts store. Probably rent the tool.

Confirm all the grounds are attached at the back of the lower intake manifold, passenger side. Two of them (one brown and white, the other black) provide the grounds for the ECM. No grounds, no ECM commands to tell the PMD what to do. FWIW PMD heat sink attached to the upper intake is only...

Finally got around to replacing the driver’s side hinge pins. Door was sagging and very difficult to close. It required so much force to slam it shut the door panel would stay attached. Only challenge was securing/suspending the door after pulling the old ones. I rigged a 2x4 through the open...

Given that random stalling / cruise control loss are symptomatic of a PMD issue and that you have a couple of PMDs (if I read earlier posts correctly) that I’m sure you’ve tried already, I’d be looking at checking the condition of the PMD harness since you’ve got your file set out and cleaning...

You might contact Diesel Site to see if they'll do a re-flash on your Heath tune (Diesel Site bought Heath) and delete the security feature.

ECM Pin Out Schematics 1997. Have to break them down into parts as a single file is too large. FWIW, The files say PCM but, we know it as "ECM" semantics, schmantics, Schematics....