I feel like it was even worse bc I was teased with limping it around a few months trying to figure it out. Like close but no cigar
CK5
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Yank Tank Molotov/3+3, 454/magnum/Allison
- Thread starter SpeedlabDan
- Start date
'84 K30 Silverado "big Dooley"
Oh I should add, Howell did not charge me for the 2003 ecu or repairs to the harness. Though it wasn't totally my fault I was at the point that I still offered to pay to have another harness built. Even tho I waited 11 months I am grateful.
So the short run whats the quick first opinion of new setup ?
Betcha you got a grin from ear to ear driving it. Been driving mine for a year and it still puts a smile on my face.
I'm really happy Howell stepped up and took care of the whole deal. I know it was a pain to deal with but I'm happy you stuck with it. Makes that first 11 miles that much sweeter.
I'm really happy Howell stepped up and took care of the whole deal. I know it was a pain to deal with but I'm happy you stuck with it. Makes that first 11 miles that much sweeter.
your fault?
so Once I get mine running again, I have to then figure out why mine stumbles once warmed up.. think you mentioned yours did this as well? if so think it was the tune?
oh and glad it is all working out for ya!!!
sounds awesome and so I see I am not the only one who needs to move the steering wheel like a boat! hah
sounds awesome and so I see I am not the only one who needs to move the steering wheel like a boat! hah
Lolz_cats
Uga duga
It's great to hear that this thing is finally running again! And congratulations on the new place.
Ha ha Yea it defiantly steers like a 69 caddy which oddly I don't like. It understeer like a sob too. That's all coming.
But yes the fact that I didn't know my harness was wired for an 03 already is my fault which it shouldn't have been sent like that to begin with. In hindsight the ecu could have been swapped to an 03 and I would have had to switch to the modern 03 throttle body and tac module. The plug on the tb is different too. That can all be covered in Larry's 8.1L thread.
So far I think it felt much more responsive off the line but like I said I didn't really give it the beans with the old fuel and my time crunch of just needing to get it home. Hopefully I can squirrel enough time away this weekend to tie things up better and get some fresh fuel. My shop is an absolute disaster/sea of totes so it's not very condusive to quality work for the moment.
It sure does and I stepped up to call and thank them for taking care of it
get her dialed in and have fun . my 01 c3500-HD with the 8.1 / nv4500 and 4.63 gears is a power machine over other options . it pulls my 10k lb loaded trailer no problems up/down hills and in town .
all will be a good pay off when done .
all will be a good pay off when done .
OK so it seems a may have a burnt exhaust valve or two. Still pops under hard acceleration. Oil psi is only 21 on the highway. No codes other than a generic mil p0802 for the tcm. Guess the trans could need a rebuild as well. Oh well I'm not pulling the engine yet bc my shop isn't ready to rebuild in. So it go
leak down test time . . . .
i had a low oil pressure problem and it was JUNK oil the previous owner had in it . did a oil change with 5w-30 mobile 1 truck & suv spec and its always 40+ at anything over 1k rpm .
i had a low oil pressure problem and it was JUNK oil the previous owner had in it . did a oil change with 5w-30 mobile 1 truck & suv spec and its always 40+ at anything over 1k rpm .
I run amsoil in everything so I don't think oil is the problem but I agree a leakdown test is certainly in order. This engine has 200k hard miles on it judging by the rest of the donor truck so I don't have much faith in that I won't need to rebuild.
So I ran the truck a bit more this weekend. Not so good. Seems I have some burnt exhaust valves that are popping under hard acceleration. I'm also throwing a p0802 generic tcm mil code. May not be major but it's annoying to say the least.
Concluded that I'll have to rebuild the engine. Question is do I rebuild the trans woit?
The drivetrain does have 200k of hard miles judging from the condition of the donor vehicle.
Either way I'm gonna keep drivi g it for now.
Concluded that I'll have to rebuild the engine. Question is do I rebuild the trans woit?
The drivetrain does have 200k of hard miles judging from the condition of the donor vehicle.
Either way I'm gonna keep drivi g it for now.
If the trans isn't doing anything crazy I would gauge the need for a rebuild on looking at the crap in the bottom of the pan, not this one code.
The p0802 code is not a generic code. It is for the TCM is requesting the check engine light. However if there are no actual codes set in the TCM, that one circuit could be shorted to power.
Normally if there were transmission codes set you would have a P0700 in the PCM. Not the code you got.
The gist of the diag is looking for power on that circuit with the TCM unplugged. I can shoot that over tonight, but it shouldn't be an issue to drive it other than it's kicking the light on.
The burnt valve deal sucks. I'd be torn on just pulling the heads and going through the valves vs full on rebuild. With the right maintenance they were supposed to have a 250k life expectancy. Again provided the maintenance got done right is the key.
I'd pull the heads and if the cylinders look good, no ridge and possibly still has cross-hatching on the walls I'd go after the heads. If the cylinders are scuffed up and show obvious signs of wear that would change my mind.
What kind of oil pressure is it holding hot? That would have some bearing (pun intended) on the rebuild debate.
The p0802 code is not a generic code. It is for the TCM is requesting the check engine light. However if there are no actual codes set in the TCM, that one circuit could be shorted to power.
Normally if there were transmission codes set you would have a P0700 in the PCM. Not the code you got.
The gist of the diag is looking for power on that circuit with the TCM unplugged. I can shoot that over tonight, but it shouldn't be an issue to drive it other than it's kicking the light on.
The burnt valve deal sucks. I'd be torn on just pulling the heads and going through the valves vs full on rebuild. With the right maintenance they were supposed to have a 250k life expectancy. Again provided the maintenance got done right is the key.
I'd pull the heads and if the cylinders look good, no ridge and possibly still has cross-hatching on the walls I'd go after the heads. If the cylinders are scuffed up and show obvious signs of wear that would change my mind.
What kind of oil pressure is it holding hot? That would have some bearing (pun intended) on the rebuild debate.
Good points for sure, the oil is showing 21psi hot at highway speed the last I looked. From what I gather these engines had low oil psi to begin with. As for maintenence I'd assume the bare minimum. This truck was riden hard and brought back wet by the looks of some of the other parts of the truck.
Of course I'd think the hyd lifters are in question as well so just pull ING the heads may not be as far as I need to dive in.
Yea I'm not getting any other codes other than both o2s when it fired up, p0134 and p0154. I did change the inner Allison filter while it was on the stand. No large chunks but definitely 200k miles worth of wear material. Once I fired the truck the trans did develop a whine when cold until it seems to pump up. Not sure what that is. Temp seems fine in the trans and it was filled with Allison equivalent fluid from Amsoil. It seems to shift fine but I do need to find some time to get back into the wiring end of it to make sure the tc lockup wire is connected. Not sure if that would cause the mil request.
As far as the backfire I would check the injectors mine did the same thing so I pulled the injectors and found trash in the inlet screens from old fuel in the injector rail. I replaced the injectors and cleaned the rail and no more back fire.
Could be the regulator as I assume, but the injectors are l new
Awoke with an epiphany of sorts today... I'm not even in truck mode really right now as I can't even walk in my garage from moving but things bubble to the surface.
I'm going to try and bypass the El cheapo china 30 micron billet I line fuel filter. Just a hunch but maybe it's restricting the fuel system too much under heavy demand, potentially causing exhaust popping under hard acceleration due to a lean effect.
It's a stretch but hopefully I can scare up enough -an6 fittings in my sea of shop boxes to bypass.
I've monitored the fuel rail pressure at idle and while revving but it's hard to know what's happening under load.
I'm also running this same filter in my k5... Maybe I'll just remove both filter elements and just run the housing for simplicity of the test
I'm going to try and bypass the El cheapo china 30 micron billet I line fuel filter. Just a hunch but maybe it's restricting the fuel system too much under heavy demand, potentially causing exhaust popping under hard acceleration due to a lean effect.
It's a stretch but hopefully I can scare up enough -an6 fittings in my sea of shop boxes to bypass.
I've monitored the fuel rail pressure at idle and while revving but it's hard to know what's happening under load.
I'm also running this same filter in my k5... Maybe I'll just remove both filter elements and just run the housing for simplicity of the test
