Just had a thought. Don't tell me the military with all those tens of thousands of humvees in the iraqi dessert has put up with the 6.5 being unreliable with lives at stake. What was their PMD reliability solution?

Swap out IPs/PMDs, like the rest of the trucks without remote FSDs/coolers, also I expect them to get worse reliability by them adding "up-armor" to them, bowing to political pressure by the uninformed that there are trade offs I won't digress to a rant in this thread on the "up armor" issue. Over on the page several members there are active duty & reservists reporting same problems & seeking solutions simliar to those offerered here & there.

you've got to be kidding!!!!!

Another credit to Bill Heath - he's been working with the military on this trying to help with their failing PMD problems. He's got test units over there and has been talking with a General (maybe, but I can't remember the man's rank) based out of Texas. This General has, indeed, had Humvees in fire fights, and needing to run (drive out of harm's way) and had the engines stop.

I'm glad Bill is helping the military forces to resolve this issue.

I had heard that the HUMVEE's didn't have the failure rate that we do mostly because of the lack of instalation under the hood. I haven't be able to verify this but thats what I been told. Any well Glad to hear someone is working on fixing the problems, both engine and Armor. There is alot of 6.5 in the miltary trucks and vans that we used in the Air Force and we don't seem to experience many shut downs either, but I believe ours are still the non-electrictronic pumps.

you've got to be kidding!!!!!
Nope not kidding there is a regular following on Diesel Page by deployed troops same complaints you see on Hummer & other GMC 6.5 forums, Bill H also working with them to resolve overheat issues as well as PMD/FSD problems. Possibly military problems combined with domestic owner problems some of the leverage brought to bear on GM by "guvmint" for extended IP and engine block warranties IMO these problems as prevalent as they are should have forced a total recall until problem was 100% fixed.

I had heard that the HUMVEE's didn't have the failure rate that we do mostly because of the lack of instalation under the hood. I haven't be able to verify this but thats what I been told. Any well Glad to hear someone is working on fixing the problems, both engine and Armor. There is alot of 6.5 in the miltary trucks and vans that we used in the Air Force and we don't seem to experience many shut downs either, but I believe ours are still the non-electrictronic pumps.
A little more reliability in Military vee-hicles vented hood helps there I think, but limited electronic IPs biggest reason, I suspect when plentiful mechanical was preferred for the battlefield for survivability reasons, EMP (pulse from near miss nukes) determines how military buys a lot of its stuff, EMP shutting down electronic controlled engines on battlefield not a good thing, but when procurement meets a cost obstacle like special order of mechanical contolled trucks for 1 unique customer driving cost up, then they will cave sometimes to market forces.

In my opinion volume becomes the cost driver, which is why a new AM GEN engine is so expensive, GM quit mfg for general public, so only market is civilian & military Hummer, they can name their price as sole source supplier, of a unique product. Stanadye makes the IP but has geared up new production for newer electronic production trucks, which is where the cost breaks come in for volume. I suspect eventually Stanadyne will no longer offer mechanical IPs as supporting "obsolete" equipment gets expensive after a while, or they will make them but at a cost higher than electronic higher sales delivery volume IPs.

Now I see why some like Remarq are pressing on with their FSD replacement. It appears that they would have a potentially large market refitting the military vehicles with their unit. Who said the 6.5 market was small? Also, I can't believe that there hasn't been a mechanical pump replacement kit for these vehicles. More performance, reliability and the ability to shrug off EMP seems to me would appeal to the military.

EMP (pulse from near miss nukes)
You can have a "near miss" with a nuke???????

anyone try the sol-d yet?

You can have a "near miss" with a nuke???????
One of the scarier scenarios of the later cold war was a small (15kt) nuke airburst at about 60-70 miles above ground level. The EMP off this would destroy or disrupt just about any electronic system that wasn't specifically hardend against it for a good distance (100-200 mi). The theory was to take out the coms and delicate systems (Radar and such) but to leave the more rubust stuff in place (airfields, fuel depots, and so on) for later use after capture.

A pair of West German Tornado fighters were brought down when they flew too close to a commercial FM transmitter in the early 80's, back before EMP effects were even considered.

Tim

anyone try the sol-d yet?
My buddy has one, lasted 2 months then crapped out! Took 2 1/2 months to get his replacement back. Said he (Remarq), got a bad batch of transistors. He has had the replacement back on for a month or so. The unit mounts to the upper intake tho. :rolleyes:

Chad

I have always been under the impression that all military hummers were mechanical and most were n/a's until recently. Are you guys serious? Is the military acctually sending troops into battle with the infamous stanadyne pmds and fuel systems that rely on oil pressure switches. Thats freaking scary. I wonder how many people are dying because their strike vehicle is incapable of moving them from harms way.
:wtf: :shake:

I was thinking the military 6.5L had a "military" spec FSD on their pump that was sapposed to be better at taking the heat. I wonder if any of those humvees will make it back across the ocean or "retired" overseas. I'd like to buy a few at surplus auction.

Good luck QM,

The only way they sell them is with the frame cut in half and rewelded or if you are lucky you can buy a retired one from a country that was given them intact, I know a guy at work who got one intact that was given to Saudi Arabia and then he bought it.

You can have a "near miss" with a nuke???????
EMP very credible threat, to meet MIL spec much electronic equipment must survive EMP near miss, (relative term for sure). Even special tests are designed for it, some of the "smart nukes" only generate EMP to gain area of battle control without destroying ability of battle force from occupying battle field or a large area with out getting radiated. Imagine in todays computers rule environment what havoc would errupt with loss of those computers or devices with sensitive components in them.

I have always been under the impression that all military hummers were mechanical and most were n/a's until recently. Are you guys serious? Is the military acctually sending troops into battle with the infamous stanadyne pmds and fuel systems that rely on oil pressure switches. Thats freaking scary. I wonder how many people are dying because their strike vehicle is incapable of moving them from harms way.
:wtf: :shake:
I don't know this to be fact never seen one myself to say with 100% confidence about some HUMVEEs being equipped with electronic IP, but I've seen military folks say it has been a problem on posts so I'll have to defer to them. Over heat is definately a problem, up armor adding weight to a vehicle never intended to be a LAV (Light armor vehicle) is not helping.

By fixing 1 problem they are creating another, lower speed-range-GRVW rating& overall relibility reduction carrying extra weight. Solution is put real LAV (light armor vehicle) in the hands of the troops making HUMVEE "bullet resistant" is better than nothing but just a band aid that makes reactionists happy. People getting mad because the weren't armored to begin with is silly it was built to a spec. as requested.

Change the spec. or mission it's is far better to have the right equipment for the job in this conflict need LAV & HUMVEE, HUMVEE has a limit & original mission profile in mind folks fail to realize, it can't do it all even up armored, & with marginal fuel delivery & overheat problem; that is what costs lives, military procurement based on flawed logic or political pressure.

Can't you imagine the flap WWII jeep (sheet metal & canvas "armor") on CNN Live in today's world as being labeled "unsafe" to go to battle with. The M-1 Garand and the unarmored Jeep (fast reliable people & equipment movers)
turned the tide of WWII.

Boy did I digress, my apology, but as a nation we really sometimes lose sight of the big picture when we let emotion rule our logic.

Hummers military and civilian did not get the turbo until '97, because the side mounted turbo did not fit in the engine bay, that's when they figured out that the van setup with rear mounted turbo could fit. I can't even bare the thought of one life lost for a F'ing PMD. Lots of Hummers in service are older and hopefully mechanical. I don't know if the N/A 6.5's from 94-97 have electronic IP's, hopefully, NOT.

was just wondering if anyone has seen a 6.5 n/a with an electronic IP,i just put a trany in a 99 p van with a 6.5 n/a and it is still a mechanical pump on it ?

This whole entire thread just has me scratching my head?
I spent a lot of time in the motorpool servicing batallion vehicles, mostly 6.2 n/a and uparmored 6.5 turbo, BUT THEY WERE ALL MECHANICAL. Only the civilian model hummers got the tronics in them.
The army doesn't have to live up to the same emissions standards as civilians do, so no need to change to the electronic pump.

69, I've seen a few 6.5 n/a with electronic pumps in trucks and vans, mostly 94-95, never in a 99. And I've seen up to '96 with mechanical pump (5436) n/a too.

That is good news TDG, just brings home the point got to be careful with what you read on forums, even credible ones that strive to be accurate.

Jesus TDG, NOW you tell us!!!! http://www.dieselplace.com/forum/images/smilies/redface.gif

That being said, there is a new DS Pump being manufactured exclusively for AM General as of last year, 5827 I think. Its basically a 5521 with new (DE) style Fuel Solenoid, different cam ring and wiring harness. Whether the application is mil or civ, I don't know, we can't even touch these pumps yet.

It won't work on regular 6.5's. Will only work on that application.

Right, Calibration is very unique, only Stanadyne can do them right now. Instead of resistors, the test machine prints out a bar code that has to be scanned and loaded into the ECM.