I have a 1996 GMC 2500 with the 6.5 as well. Have had it over 23 years... Still runs great.. I like your truck. Engine seems to be running well... Just an FYI... Those holes on your front bumper are there for a reason. Those fog lamps should have not been installed there.. Those holes are to let in fresh air for your engine.. Diesels require large quantities of air for them to run well. Thought you as should now.
The holes in the bumper are for diesel engine cooling hence you don’t see them on the gassers. Blocking them defeats the purpose and further bakes the PMD (FSD)…
i love these trucks.. mine is red 4door 3500 single rear 2wd and gas 350.. i dream of it being 4x4 and diesel.. but they are all awesome .. much better then anything out these days.. you can replace everything on it and still be less then half the cost of one of the new junk trucks that arent really trucks anyway
Just got done doing my ffm for a fuel leak. Fortunately on the 94 the intakes didn't have to be removed to do the job. Not surprised that the PMD not mounted to a heat sink was the problem. They don't just get hot, they get HOT! And yeah, that T valve that had a rubber hose leading to nowhere is, as you guessed, the water in fuel drain for the ffm. Really enjoyed the vid, thanks.
Thanks man! I didn’t have to pull the intake but I wanted to replace the rubber fuel lines to the pump so I figured it would make my life easier! Yeah I have a couple modules on the shelf just in case!
@@hodgepodgegarage3911 I replaced the fuel lines, too. Opted to not rerun them under the intakes so as to be able to get to them easier if they ever need replacing. Hopefully never.
Cool truck! Been looking for one just like it for the farm. Had a similar ffm problem with my truck. It was leaking fuel through that water separator/ drain and loosing prime. Probably not the best fix but I clamped off the drain hose. No issues so far. Great video!
I know this is an old video and I haven’t watched it all the way through yet but on my 1997 C 3500 crew cab long bed I have a P400 6.5L T Diesel and on one injector pump I had the optical. I sensor went out on the injector pump before I bought a brand new pump from Leroy’s Diesel that optical license sensor creates a lot of problems if you get dirty fuel or it can get the flat out as well, but if fuel gets past that filter, it will create a problem starting and run running problem as well and stumbling similar to the PMD issues as well. Also check your PMD connections. Make sure they’re clean no crusty green crust also quadstar diesel. They sell a lot of parts for our 6.5 diesels as well and also lift pumps. Low pressure output is a big issue with these trucks. I should say our trucks as well. I still have mine will not give it up but anyway good luck with your project. Also on the windshield wipers there was a recall they replace mine and I had about 100+ thousand miles on them on the truck and they replaced it the motor assembly several years ago. I’m thinking somewhere around 2017 when they replace mine for a recall, so check into that and see if they’re still recall out for the windshield wiper motor assembly For your truck just saying might get lucky it was for mine and those PMDs yeah always keep a back up PMD.
Bro my truck sounds exactly the same and I bought another PDM and I felt like it was a fuel issue so I didn’t bother installing it . I’m going to try it tomorrow lol
Thx for the video. I have a different problem. Starts hard but seems to pulsate at idle and loss of power. One time I could undo the battery cable and reset the computer but not any longer. It starts hard a seems stuck in a limp mode. Any suggestions??
I got a 6.5 98 k3500 crew cab drw and I got a while back and I am at a head scratcher with the wiring to the engine . Was planning to pull her out and to a refresh on her since she has been sitting without oil for some time
I have a 2001 c3500… had water and algae in the tanks, replaced them both, replaced lines, sending units, n I threw a PMD separator filter, shut off Solenoid, oil pressure sensor, lift pump….. truck turns on after a long hard crank, then shuts off after 30 seconds… I am ready to drop a grenade under it
Get that pmd off the manifold. To hot. I have one mounted by the fuse box and one behind the front bumper . Keep one mounted for emergency. Those pmd 's can cause some crazy crap. That little T handle is a drain . You can drain the water every so often,
Hey man interesting vid. I have a 6.5 burb I just bought and it already had the pmd relocated with a new one but it runs like crap and always has a hard start even when engine is hot. Only thing that will fix it is when I change the fuel filter and I have to keep cleaning the new one out every few days to keep it from bogging down when driving. What could this be? Vibrates around 2000 rpm. Also, when I clean the fuel filter, I don’t notice any garbage in it so I don’t know why it makes a difference when I do lol. Any thoughts?
That’s an odd problem, I’ve had a few with the crap in the tank, it clogs the sick in the tank, that and check for air leaks in the fuel lines, if air gets in it’s a pain to have to air bleed every time you start it
@@Lucasr09 I’ve had more than one leak from the fuel filter cap, the aftermarket ones don’t always seal well on the housings, I’ve been trying to stay with the metal capped filters, and found more than one rubber line clamp loose on these trucks lol also the injectors are a problem child cuz no one ever changes them, gen recommended replacing injectors every 100,000 miles, I’ve had one truck smoke real bad due to injectors and one truck hard start cuz of plugged injectors
Sounds like probably either injectors or injection pump, I like to throw injectors in them, go recommended changing injectors every 100,000 miles but no one ever does, and they’re fairly cheap can get a set for like 400$ last time I ordered some
Can do multiple things, I’ve seen sputtering shutting off randomly, smoking bad, hard starting, most of the time it’s the module but the pump itself but I’ve replaced a few pumps before too
i have a 2000 6.5 3500 that runs amazing and i just noticed a 2 inch horizontal crack in the front drivers side of frame if anyone’s looking for parts or wants to take it lmk
@@hodgepodgegarage3911 I was talking about buying parts. But yes buying whole motors, trannys, stuff like that is. But parts seem kinda cheap. Especially compared to newer diesels.
You don't know what you're talking about at all ! First of all it was never built by Detroit it was designed by Gm engineers and built by Gm in a plant in Ohio ! Your information is incorrect am general did what need too be done
I have a 1996 GMC 2500 with the 6.5 as well. Have had it over 23 years... Still runs great.. I like your truck. Engine seems to be running well... Just an FYI... Those holes on your front bumper are there for a reason. Those fog lamps should have not been installed there.. Those holes are to let in fresh air for your engine.. Diesels require large quantities of air for them to run well. Thought you as should now.
The holes in the bumper are for diesel engine cooling hence you don’t see them on the gassers.
Blocking them defeats the purpose and further bakes the PMD (FSD)…
Your troubleshooting was well explained thank you..
i love these trucks.. mine is red 4door 3500 single rear 2wd and gas 350.. i dream of it being 4x4 and diesel.. but they are all awesome .. much better then anything out these days.. you can replace everything on it and still be less then half the cost of one of the new junk trucks that arent really trucks anyway
Really miss my 6.2 Silverado. Love to hear them running.
Just got done doing my ffm for a fuel leak. Fortunately on the 94 the intakes didn't have to be removed to do the job. Not surprised that the PMD not mounted to a heat sink was the problem. They don't just get hot, they get HOT! And yeah, that T valve that had a rubber hose leading to nowhere is, as you guessed, the water in fuel drain for the ffm. Really enjoyed the vid, thanks.
Thanks man! I didn’t have to pull the intake but I wanted to replace the rubber fuel lines to the pump so I figured it would make my life easier! Yeah I have a couple modules on the shelf just in case!
@@hodgepodgegarage3911 I replaced the fuel lines, too. Opted to not rerun them under the intakes so as to be able to get to them easier if they ever need replacing. Hopefully never.
Hey now....Thanks for the video brother
Good video!
Cool truck! Been looking for one just like it for the farm. Had a similar ffm problem with my truck. It was leaking fuel through that water separator/ drain and loosing prime. Probably not the best fix but I clamped off the drain hose. No issues so far. Great video!
If it works it’s not dumb right? Lol we’ll if your in Charleston sc and looking this one’s for sale lol
It would be a drive for me lol. I’m in Alabama.
@@johnquaidwestmoreland4184 haha proooobly not worth it lol
I know this is an old video and I haven’t watched it all the way through yet but on my 1997 C 3500 crew cab long bed I have a P400 6.5L T Diesel and on one injector pump I had the optical. I sensor went out on the injector pump before I bought a brand new pump from Leroy’s Diesel that optical license sensor creates a lot of problems if you get dirty fuel or it can get the flat out as well, but if fuel gets past that filter, it will create a problem starting and run running problem as well and stumbling similar to the PMD issues as well. Also check your PMD connections. Make sure they’re clean no crusty green crust also quadstar diesel. They sell a lot of parts for our 6.5 diesels as well and also lift pumps. Low pressure output is a big issue with these trucks. I should say our trucks as well. I still have mine will not give it up but anyway good luck with your project. Also on the windshield wipers there was a recall they replace mine and I had about 100+ thousand miles on them on the truck and they replaced it the motor assembly several years ago. I’m thinking somewhere around 2017 when they replace mine for a recall, so check into that and see if they’re still recall out for the windshield wiper motor assembly For your truck just saying might get lucky it was for mine and those PMDs yeah always keep a back up PMD.
Bro my truck sounds exactly the same and I bought another PDM and I felt like it was a fuel issue so I didn’t bother installing it . I’m going to try it tomorrow lol
Love my 1994 Dodge 12v 😂
Great diagnostic video! Your wrong about one thing though: nothing boring about the actual work your doing on the truck.
Love your 96 Gmc Sierra Crew Cab K3500 6.5 Detroit Diesel Do Mods to your Truck man Hodge Podge Garage ?????
Check the lift pump and filter
Thx for the video. I have a different problem. Starts hard but seems to pulsate at idle and loss of power. One time I could undo the battery cable and reset the computer but not any longer. It starts hard a seems stuck in a limp mode. Any suggestions??
Resistor in the pmd you managed a reset switching the pmd
I got a 6.5 98 k3500 crew cab drw and I got a while back and I am at a head scratcher with the wiring to the engine . Was planning to pull her out and to a refresh on her since she has been sitting without oil for some time
I am not that good with wiring . At all
I couldn’t tell you much about how the wiring is supposed to be, is it the original harness? Has it been cut up?
@@hodgepodgegarage3911original harness
I have a 2001 c3500… had water and algae in the tanks, replaced them both, replaced lines, sending units, n I threw a PMD separator filter, shut off Solenoid, oil pressure sensor, lift pump….. truck turns on after a long hard crank, then shuts off after 30 seconds… I am ready to drop a grenade under it
Get that pmd off the manifold. To hot. I have one mounted by the fuse box and one behind the front bumper . Keep one mounted for emergency. Those pmd 's can cause some crazy crap. That little T handle is a drain . You can drain the water every so often,
So weird question is there a issue with runnin a gas rated fuel tank in/for the 6.5’s
you use it before you open filter .. so you dont get crap in pump
Hey man interesting vid. I have a 6.5 burb I just bought and it already had the pmd relocated with a new one but it runs like crap and always has a hard start even when engine is hot. Only thing that will fix it is when I change the fuel filter and I have to keep cleaning the new one out every few days to keep it from bogging down when driving. What could this be? Vibrates around 2000 rpm. Also, when I clean the fuel filter, I don’t notice any garbage in it so I don’t know why it makes a difference when I do lol. Any thoughts?
That’s an odd problem, I’ve had a few with the crap in the tank, it clogs the sick in the tank, that and check for air leaks in the fuel lines, if air gets in it’s a pain to have to air bleed every time you start it
@@hodgepodgegarage3911 wonder how air could be getting in the lines?
@@Lucasr09 I’ve had more than one leak from the fuel filter cap, the aftermarket ones don’t always seal well on the housings, I’ve been trying to stay with the metal capped filters, and found more than one rubber line clamp loose on these trucks lol also the injectors are a problem child cuz no one ever changes them, gen recommended replacing injectors every 100,000 miles, I’ve had one truck smoke real bad due to injectors and one truck hard start cuz of plugged injectors
Hmmm .. heyy br0. If u get serious 0n possibly selling it .. i maybe interested 😮😊😢..okay br0.. good video..
I got a 6.5 just got it back running white smokes and very hard start any ideas
Sounds like probably either injectors or injection pump, I like to throw injectors in them, go recommended changing injectors every 100,000 miles but no one ever does, and they’re fairly cheap can get a set for like 400$ last time I ordered some
What does a bad injection pump feel and act like?
Can do multiple things, I’ve seen sputtering shutting off randomly, smoking bad, hard starting, most of the time it’s the module but the pump itself but I’ve replaced a few pumps before too
Man im in Florence sc. Really need help with a 96 same motor. Its not getting fuel could you fix it? Ill pay whatever
Not getting fuel to where? To the pump or not getting injected?
@@hodgepodgegarage3911 I'm not sure all it's doin is just turning over
@@charliejordan2357 sorry went on vacation, you got an email or phone number we could talk?
i have a 2000 6.5 3500 that runs amazing and i just noticed a 2 inch horizontal crack in the front drivers side of frame if anyone’s looking for parts or wants to take it lmk
Is it behind the steering box? I believe they make a weld in patch for those
@@hodgepodgegarage3911 dude yes it is !!
Let me know if you ever sell this truck. I would be interested
Unfortunately your a few months too late, it’s sold already
I need your help
what are you asking for it
Have you said the truck.?
Not yet, thinking about registering it and driving it around seeing as how my daily driver get 11mpg lol
I want to swap a 6.5 into my 98 c3500 so bad
I fully support it!
I have a 6.5. it's a money pit. Only good thing is the parts are cheap.
Like everything else now they’re getting more expensive, I used to buy used engine for 100$ now I can’t even find them on Facebook
@@hodgepodgegarage3911 I was talking about buying parts. But yes buying whole motors, trannys, stuff like that is. But parts seem kinda cheap. Especially compared to newer diesels.
You don't know what you're talking about at all ! First of all it was never built by Detroit it was designed by Gm engineers and built by Gm in a plant in Ohio ! Your information is incorrect am general did what need too be done
Nothing ever works on Chevy so called trucks.
We’ll we can all agree at least it’s not a 6.0 ford lol