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Have you confirmed with an amp clamp & multimeter that your gauges are telling true? Sent from my SM-G970U using Tapatalk

I'm going to politely disagree with the water in fuel diagnosis, tho anything is possible. I say this because you had no observable water when you sampled the separator and the behavior improved as time went on without mechanical intervention. It's very common for these machines to find...

In your earlier posts it sounds like things are improving as those internals are starting to get moving again. Fresh fuel and SeaFoam in the tank, and some ATF in the oil a few minutes before your next oil change may prove to work wonders. Sent from my SM-G970U using Tapatalk

Is your set factory configured or has the fuel tank system been modified? If it's factory, you are NOT switching between tanks. In a factory configuration: When you rotate the start switch to Prime & Run, only the Main pump operates. When set to Prime & Run Aux fuel, the Main pump runs AND you...

Since nobody has said it, I'll do the honors. You should prepare yourself for that machine to be a Gremlin-filled PITA in the first hundred-ish hours or so. Most of the MEP generation are in the 30 +/- year old category...and old stuff sitting for years usually doesn't like to behave when you...

The gauges are an easy troubleshoot. Follow the fault resolution in the TM. Most likely the sending unit (float) crapped out (those suck to get out)...others could be gauge failure, chafed wire, or bad ground. Just follow the TM for the fuel gauge.

Good practice is, new problem starts a new thread. It seems problems like this is common in low hour units, from sitting all those years. The boys will give you things like checking pumps and filters...injection pump timing...cleaning the injectors & IPs sometimes help...some end up removing...

In the interim I would put the overflow tube in a Mason jar with a hole drilled in the lid. Use something to wrap the glass to isolate it from the vibration and zip tie it in the same place. Not perfect, but will get you by. As I understand, the original bottle is discontinued and unavailable...

Well crap...another tool I didn't know I needed, thanks! I've always used the resivoir as a hand jug and just put pressure as I tighten the first bolt, never knew there was an actual tool for this. I suggest saving a search in eBay. You'll get an email or push notification if/when you get a...

Yes, the trans can be put in neutral without power...these trucks have no electric shift interlock like modern vehicles, these are 100% mechanical. Key to the on position will unlock the column, shift it out of park by the shift lever. If no key or it's bound up internally, you can roll under...

Any professional LS tuner can flash a stock GM truck file on to the TCM, it's easy to do. Sent from my SM-G970U using Tapatalk

Very cool!! Sent from my SM-G970U using Tapatalk

Howju dew dat?? Sent from my SM-G970U using Tapatalk

This seems to be a popular subject over the last year, tho at various power levels. The solution seems to be eventually found in the mechanical governor behind the front engine cover getting caught/hung up by either being bent or corroded. Sent from my SM-G970U using Tapatalk

You should put this post in the "parts wanted" section, so the folks who have parts will see it. I'm expecting @cucvrus to chime in with words of wisdom. Good luck! Sent from my SM-G970U using Tapatalk

I'm excited to hear the experts weigh in on this one. My one suggestion would be to pull the clear fuel out of the tank and put some red dyed Diesel in, that might make it easier to find the source back in there...maybe it helps, dunno. Good luck! Sent from my SM-G970U using Tapatalk

A quick Googling shows little to nothing off of that part number. Better results might be had searching by NSN. You can also save searches in eBay and it will notify you when something matches. I know there's a few guys on here who have parts machines that may help you. @CallMeColt @Light in...

Lay it out in the sun so it warms up, then just start folding however you see fit. Store it on a shelf high and dry. Sent from my SM-G970U using Tapatalk

@kloppk has all the goodies you need to automate that beast, he has the Quad Fuse kit and MOV if those aren't done yet. Sent from my SM-G970U using Tapatalk

I like Champion in SoCal. They make a very nice piece, reasonable price too. Whoever you talk to to order whatever you decide, tell them you have an '84 K30 with 6.2L Diesel and TH400 trans...do not tell them it's a CUCV, it just confuses most folks. Sent from my SM-G970U using Tapatalk