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88gmctruck's 1999 K2500 L65 cranks but doesn't start.

88gmctruck said:
I sent an email to Bill Heath to see if he can just remove the security stuff from the PCM, it would honestly make things much easier...
Click to expand...


Ninja edit, read my post again at the bottom.....

;)

Bill is probably a better option as he'll be set up for all the OBDII years. The passlock is just a simple "on" or "off" flag in my tuning software:

Untitled-1.jpg


I'll leave my offer on the table if you want to use it.

CHeers
 
This thread has too many ninja edits and overlapping posts.

Anyway.......... I'll keep that idea out there. I'd honestly rather have the passlock stuff gone. Only problem is you are in Canada and it's going to cost my a plenty to ship it let alone the time it takes for it to get there and come back. Last year I sent my BCM from my 02 to Lyndon about 5 times, it never did get programmed exactly correct and i just kinda gave up sending it when my grandma got sick and actually needed the truck. The options I wanted never did get fully programmed and the BCM sends a signal to the dome relay to fade off and makes a buzzing sound. Urg.

Anyway. I'll see what happens tomorrow, if I can't figure it out I'm thinking I'll see if Bill can do it since he's a 3 hour drive from me (assuming it's not an arm and leg cost) otherwise the truck might be down awhile and I'll send you my PCM.
 
88gmctruck said:
This thread has too many ninja edits and overlapping posts.

Anyway.......... I'll keep that idea out there. I'd honestly rather have the passlock stuff gone. Only problem is you are in Canada and it's going to cost my a plenty to ship it let alone the time it takes for it to get there and come back. Last year I sent my BCM from my 02 to Lyndon about 5 times, it never did get programmed exactly correct and i just kinda gave up sending it when my grandma got sick and actually needed the truck. The options I wanted never did get fully programmed and the BCM sends a signal to the dome relay to fade off and makes a buzzing sound. Urg.

Anyway. I'll see what happens tomorrow, if I can't figure it out I'm thinking I'll see if Bill can do it since he's a 3 hour drive from me (assuming it's not an arm and leg cost) otherwise the truck might be down awhile and I'll send you my PCM.
Click to expand...

Yup, I'm on Vancouver Island. If that stretch of water wasn't there, it'd be easy peasy to do.

I'd just load up the 35 footer and head on down for a bit of a Vaca....I could use a week away from "the grinder". Hmm, maybe hunt for some cheap parts too! ;)

If you do end up sending to me, I'd really prefer a spare PCM or you buying the VDF from Lyndon for your year so I can at least give you the best chance of success rather than getting back a fugged up PCM.

Like in the image I posted above (sorry that was another ninja edit :)), it's just a simple on/off flag, but you never know what could happen.

I'd hate to be sending you back a paper weight and have you worse off than you are right now.

I'll try flashing my 98 tune into the 99 PCM I have this weekend and see what happens. It should work fine, the 6.5 OBDII PCM's all have the same part number. There's no difference in the hardware for the L65 trucks either (that I know of).

The gotcha with yours is if I flash your PCM with a 98 CAL and your truck (99) won't work with it.....well, paperweight.

Cheers
 
Yeah, where abouts would I even go about finding a spare PCM? I would probably pick one up at a junkyard in Spokane the easiest. Hell i could even get another passlock module while i'm at it.
 
88gmctruck said:
Yeah, where abouts would I even go about finding a spare PCM? I would probably pick one up at a junkyard in Spokane the easiest. Hell i could even get another passlock module while i'm at it.
Click to expand...

Yup, pretty much....pick up a passlock to get you up and running. Send me a PCM to program it out. Swap 'em out when you get it back.

Heck you could even send me you passlock enabled PCm after that, then and I'll program that one out too....

If the first reflashed one works that is...

;)

Someone on the board here might even be willing to donate one for ya....:)
 
Just searched, closest PCM near me is in montana, then over on the west side (5 hours).

There is a PCM at a wrecking yard in Duncan, BC but it's $150 CAN, which is $150 US. If I end up going that route maybe I'll pay ya to go grab it and program it. IDK, this is all getting to be too frustrating.
 
Hmmm, here's a thought:

I flash my spare PCM this weekend. If it works in my truck, you pay for shipping to you.

Plug it in, if it works, you keep it and send me yours to replace mine.

If it doesn't work in yours though, I'd want it shipped back.....

Like I said before, I'll just throw the offer out there.

Try your other options first. If it turns out to be a bad connector or something, you're golden. Then you can look at picking up another PCM and doing the passlock delete whenever you want.

Cheers
 
I'd be down for that. I'll let you know what happens tomorrow.

Thanks BJ for the offer and everyone for all the help. In some ways i'm glad to have had this happen, I now know all the steps of figuring out if something is wrong with the injection system on my motor at least!
 
Duncan is a 3 hour one way drive for me.

Diesel is over 4 bucks a gallon here.

The cost would be very high just for me to go pick it up.

Keep an eye on ebay, I bought my last one there for 75 bucks...
 
Ok, I wasn't sure exactly where you were located, just did a search based in Victoria. Anyway, what you suggested would work out well assuming I can't get the passlock module to work, and replacing it is probably expensive as well.

I will keep an eye out for a spare PCM, i know there are plenty of places in western washington I'd be able to get one at when i'm in the area.
 
Give me a couple days to check my local yards.

They sell PCM's for around 75-100 bucks and usually have a couple 6.5 trucks kicking around.

Maybe I can scare something up for you at a decent price. Most of the guys know me pretty well and cut me a break form time to time (also doesn't hurt I rescued one of the guy's brother from a mountain pass last year).

Then it would just be the price of the PCM and one way ship to you.

I'll let you know what I find. Probably won't get back to you on it until the weekend.

I'm flying nights this week (I'm SAR helicopter Aircrew) and have some very important meetings I must attend during the days.

Cheers
 
I know, it's total BS. My 02 has it as well but i've never had a problem there. I'm thinking having it turned off in the PCM is the best option at this point.

Makes me love my 88 just that much more. It's such a simple truck.
 
Finally found the Passlock module part number. 16264955. It's approx $184 new.

Junkyard in Spokane is $47 for a used one.
 
Well, to play devils advocate:

The PO of my truck had it broken into. The classic pop to door handles and you're in stuff.

They didn't steal a bloody thing, but tried to make off with the truck. The column plastic was torn off, they tried to jimmy the key tumblers with a screwdriver and mucked around with the column wiring (snip/splice/etc).

Passlock did it's job and they had to leave the truck.

So it's not total BS, it does its job.

But like anything else (pmd, pcm, optical sensor, ESO, map sensors, dampers, pulleys, etc), it eventully breaks and needs to be repaired.

If you asked my trucks PO, he'd probably prefer to fix the passlock system than replace the whole truck....

;)
 
When the system works its fine, just as in my 02. But seriously, what if had been camping in the middle of nowhere? There is way to start the truck... I'm planning on installing my own remote start alarm anyway, same on both my truck have.

Anyway, there is a wrecking yard about 45min from me with a few 97+ fullsizes, going to run down and grab another passlock module before heading home and just slap it in. If it doesn't want to start the relearn, then I'm tracing down wire. I already unplugged and re-plugged all connections between the passlock module and pcm...
 
Yup, that's true. No way to start the truck.

But, if your 88 has the 7477 crap out, same deal. Map sensor will shut the TBi down too (IIRC). Or a ruptured pressure reg.

Or, the 02 could also leave you dead with a bad PCM.

Problem is, your 99 is 12 years old. They're good old beasts, but it's still 12 years old. I know it's no real comfort and you already know this, but things are going to break. Best we can all do is try to minimize it.

Lucky for me, I always carry my reflash software and a laptop in the truck. That's not a solution for the average guy (over a grand to set you up if you don't have an old laptop), but I can flash passlock on and off if required so I can at least "git back". :)

I know the troubleshooting doesn't really support this, but I'd keep in mind the lock cylinder (HAL switch) is a common failure point on the passlock system...
 
Yeah, the 88 could die on me, as could the 02. I do understand its an old truck, just frustrating that something so minor can keep the truck parked.

I know the key hall sensor can fail, but I've already resistored it to bypass that portion of the passlock system.
 
88gmctruck said:
Yeah, the 88 could die on me, as could the 02. I do understand its an old truck, just frustrating that something so minor can keep the truck parked.

I know the key hall sensor can fail, but I've already resistored it to bypass that portion of the passlock system.
Click to expand...

I wonder if the PO had these problems?

Probably no way to know.....
 
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