I notice I never see a 1992 6.5 TD on here.....why is that? I kinda feel like I'm on an island here cause I have read enuff on the net to get the feelin that it was sorta unique with unique problems......I'm gonna try to add a pic of mine. Sure is a lonely feelin'. Get back to me

Dont have a 92 but at my job I just replaced the majority of the jointds under the front end and brought it back to being useable and its a 95 3500 6.5 TD

thanks, but (as I understand it) there were a lotta changes between those year models

See my sig. The 93 isn't running yet but is getting close. The 92 and 93s are identical. There is no differences that I have found. And yes, I would take a mechanical injection pump over a electronic any day.

Just out of curiosity, snookarosis, what turbo does your truck have?
Is it a GM-1 or a GM-3?

I guess you have the prototype 6.5 TD. GM built it, drove it around the block, parked it and decided everything was wonderful. Such a nice riding, good looking truck, and a Diesel too. Meanwhile Dodge had taken a Farm Truck designed in 1947, put a Cummins in it and took over the Diesel pick-up world.:)

I dunno (d-uhhhh) I ain't very mechaniacal........in other words, me no savvy. How do I tell?

I have a 93 6.5 and it is completly identical to your 92. GM was still offering the 6.2 or the 6.5 during 92 and 93 and with 92 being the first year for the 6.5TD then its really uncommon to find one. Hold on to that truck because there are a lot of people who would like to get their hands on a mechanical 6.5TD because there aren't many things that need to be addressed with them and they are super easy to diagnose any problems.

I was contemplating getting a newer truck but after more thought, its paid for, its cheap on insurance and gets pretty decent fuel mileage and power (18-21mpg, soon to be 24mpg and I have had my pump cranked with 15psi of boost for 30,000 miles now).

'preciate it, farmboy56, how are you doing on oil consumption? How are you gettin all that mpg? I'm probably gettin 10mpg and that's around town without any load. The thing is........I really need an ext cab

I wanna travel, ya see......probably with a fifth wheel and a dog and a wife

Well it really depends on my driving habits. If I do 70mph on the interstate for long periods of time or shift in the higher RPMs driving around town, I will notice about 2 quarts burned within an oil change. I have 4:10 gears in my axles so when I drive like a mad man on the interstate my truck SCREAMS at over 2,500 RPMs and a truck is just going to burn oil after that point.

If I drive conservatively then I won't hardly burn any oil and can see 20-21mpg on the interstate and 17-18mpg in town. I have NEVER seen worse than 14mpg even during the winter and using 4x4 or letting it high idle to warm up.

I am guna switch out my 4:10s for 3:73s this winter since I don't tow ANYTHING and more use my truck for daily commute and I am guna run the Toyo M55 tire that measures 33.4x10.3 and I should be able to obtain 24mpg on the interstate when its all said and done.

I've got a "shake" that I can't seem to get rid of.....also a cold start knocking (lasts about 10 seconds). I've done everything I can think of to get rid of the shake....drive shaft balanced, u-joints, tires balanced, but I did have the guy tell me about just a little spot on one of the rims....couldn't even see it til it was spinning a little. Any ideas on any of this stuff?? I got me a new dipstick hoping to cut some of the oil usage-no luck. I see it smoking just a little at the filler connection too.....guess I'll get that fixed. Thanks Farmboy...you seem to be the only one with one just like mine

Cold start knocking is most likely cold advance. It's normal. If it didn't do that, it would indicate a problem.

As has been stated, 92 and 93 6.5's were identical and are very similar to all 6.2's. From what I've found, the 6.5 was only available in regular cab 8 lug pickups for 92, then in all the 8 lug (pickups anyways, not sure on Suburbans) in 93, and finally in the rest of the full size line up in 94.

what's cold advance and what do I do about it?

It's an "operating mode" when the engine isn't up to temp that a solenoid in the injection pump increases housing pressure. This advances the timing. What do you mean what do you do about it? I'd say nothing, you shouldn't want to.

I dunno (d-uhhhh) I ain't very mechaniacal........in other words, me no savvy. How do I tell?

If you look at the turbo in my profile picture, you will see the little flat spot at the top with the tag on it. The ID is stamped into that tag, the top line should say GM-1 or GM-3. It is not a real important difference but most of the early 92s had the GM-1, but later the switched to the GM-3.

I have a 92. As mentioned the 92 6.5 was only available as regular cabs, 93 all three cabs were available.

Slap a high output water pump on there if your going to do some towing and an AC/Delco thermostat. Pull the radiator also and give it a good cleaning and clean the condenser. Is your radiator aluminum or copper, my 92 has copper, my 93 has aluminum.

Where in Texas you at? I'm over by Texarkana.

I have a 92 2500 with 1 ton axle 4:10 turned 339000 miles yesterday. 2 wheel dr rebuilt ip and new bosch injectors 1050 miles ago started this morning at 24degrees F no smoke. it was a low of 22F overnite. best riding truck I ever drove. Enjoy lots of stuff on this site.

I'll check that out, matt, and to you, plowboy, I am in wichita falls....howdy neighbor! I am a (obviously) novice to diesels, and I thank all of you for your patience and understanding. Glad to have you

I have a 92 2500 with 1 ton axle 4:10 turned 339000 miles yesterday.

Is that on the original engine without any work done to it? 339k is an awesome feat I do have to say that. Makes the 92-93 mechanical trucks even more stronger and desireable.

okay, so I forgot to plug 'er in last nite and I got a huge plume of white smoke when I cranked it and heard the same old knockin......now most of you have got me feelin okay about the "cold start knock", but I seem to remember the plume of white smoke bein' a bad thing. What is that exactly and what should I tell my diesel mechanic to look for when I take it in for a cleanup-tune-up-evaluation-inspection type visit? So far my list looks like this.....cold start knock, shake-vibrate, oil leaks, and now...white smoke at start-up. I figure I'll have him check out the glow plugs and put a new air filter in just for good maintenance.........anything else you guys think I oughta have him look into while I've got it there?

oh yeah! now I know this is totally "off-topic" and actually out of place on this site, I guess, but I have a carport with a kind of low clearance and since I got this truck, every time I pull in or out- that antenna catches and makes it kinda spring-whip. well the radio quit gettin signal so I replaced it with a short mast antenna and still got no signal.........thoughts? (other than "go to the appropriate site for this topic")

oh yeah! now I know this is totally "off-topic" and actually out of place on this site, I guess, but I have a carport with a kind of low clearance and since I got this truck, every time I pull in or out- that antenna catches and makes it kinda spring-whip. well the radio quit gettin signal so I replaced it with a short mast antenna and still got no signal.........thoughts? (other than "go to the appropriate site for this topic")

Either the attenna cable broke off inside, or the radio receiver just flat our quit. I had that happen to mine a few years back, so I just threw in a CD player head unit, all fixed!

okay, so I forgot to plug 'er in last nite and I got a huge plume of white smoke when I cranked it and heard the same old knockin......now most of you have got me feelin okay about the "cold start knock", but I seem to remember the plume of white smoke bein' a bad thing. What is that exactly and what should I tell my diesel mechanic to look for when I take it in for a cleanup-tune-up-evaluation-inspection type visit? So far my list looks like this.....cold start knock, shake-vibrate, oil leaks, and now...white smoke at start-up. I figure I'll have him check out the glow plugs and put a new air filter in just for good maintenance.........anything else you guys think I oughta have him look into while I've got it there?

Is the cold advance/high idle working? Idle should drop down and clatter should smooth out some when coolant in the head gets to 100ºF.

I've had to replace the temp switch on mine a couple of times. Its in the thermostat crossover, two wire connector. Both wires should be hot with the key on if engine is cold and the switch is good.

I'll check that out, plowboy, and I appreciate it. Matt, where did you put that unit? Where the cassette deck is?

Does that make me the third person here with a 92 6.5? i just picked mine up last wednesday (16 Dec 2009) and i'm loving it.

last winter I had an 86 6.2, was the best truck I ever owned, but i was offered twice what i paid for it in cash, and the only work i had done was lost the grill offroading, broke the passenger power window switch so the window wouldn't go up, and used the carpet as a spitoon. I originally paid $700 for the truck, and sold it to a buddy for $1300 even though he knew what I had paid for it. I thought I was just going to buy another $700 6.2 and pocket the money, but it has taken me almost a year to find another GM diesel in my price range that was a decent truck.

I just paid $1500 for my 92 it's a K2500, and it is definately a lot more truck. i have a couple issues to work out, but it runs and drives great. now that 86 is the second best truck i have ever owned. (i've had a lot) I did a lot of research on this site and elsewhere, and decided the 92/93 with the mechanical pump was the way to go. For some reason everyone with the 73-87 Body style with the 6.2 thinks their trucks are worth $3000 now, and the 94+ trucks have the silly PMD issues and emissions stuff.

once you get into this diesel thing it's hard to go back. I passed up lots of great deals on gassers, but i just couldn't bring myself to drive a truck that didn't have a diesel, and i will probably never own another gasser pickup ever again.

wassa original radio for one of these things cost and where do you get one?

I'm here representing the '92 folks. I don't drop by as often as before. Find a GM-8 turbo for your ride(or at least a GM-4) - they flow much, much better than the GM-3's. I have a GM-8 on mine now. With everybody installing aftermarket turbo's you can find a GM-8 for cheap - I paid $300.00 for mine w/Turbo Master(a $100.00 item by itself). There's all sorts of fun (and fairly cheap) stuff you can do to these mechanical IP trucks.

sorta in the 92 club here,i am stuck driving a 92 3500hd dump truck that originally had a 6.5/4l80e and after 3 motors is now swapped to a injected 454/4l80e, wish i had one of those early 6.5 motors around now to put in my 98

92 still had the 6.2 available so I would say most of the diesel trucks that year were 6.2s.

And FWIW, there weren't any diesel suburbans in 92 or 93. 91 was the last year for the old body style and for the diesel until the 6.5 went electronic in 94.

Just hit 255k on my 6.5 :D

Just hit 255k on my 6.5 :D

thats about where my crewcab is at before the motor just blew

I have a 93 6.5 and it is completly identical to your 92. GM was still offering the 6.2 or the 6.5 during 92 and 93 and with 92 being the first year for the 6.5TD then its really uncommon to find one. Hold on to that truck because there are a lot of people who would like to get their hands on a mechanical 6.5TD because there aren't many things that need to be addressed with them and they are super easy to diagnose any problems.

I was contemplating getting a newer truck but after more thought, its paid for, its cheap on insurance and gets pretty decent fuel mileage and power (18-21mpg, soon to be 24mpg and I have had my pump cranked with 15psi of boost for 30,000 miles now).

Hi I also have a 93 and I was wondering how you turn the fuel pump up. After playing with the TM I have decided more fuel is the way to go.

thats about where my crewcab is at before the motor just blew

Don't tell me that! I don't have money for a new engine!

Don't tell me that! I don't have money for a new engine!
tell me about it, there is a reason why i am driving a 3500hd dump truck daily @5mpg instead of swapping in a motor in my truck, i did find a already removed 85 military 6.2 with 77,000 miles for $250 that i may get otherwise it will be a 91 6.2 with 90,000 miles for $700 that i can actually see and hear run from a buddy, i already have a set of low mile late style 6.5 heads to put on whatever motor i get