1996 Chevy Tahoe running rough

[lesterl]

Slow start, try holding throttle 1/4 way and cranking. Blackening of plugs is probably carbon buildup from overfueling ( Bad FPR? Leaking down fuel injectors? )

 

[norcalstrokin]

okay well it didn't want to start today it took a couple of times to actually get it started pretty sure the starter is going out on it well it sounds like it. but I was able to get started after I got jumper cables hooked up to it. but I got some new parts for the truck. I was able to get the pump for the mpfi conversion as long with a starter, distributor, fuel pump, fuel filter, gaskets, oil filter and many other things. I got a deal that I couldn't pass up for the stuff and everything is all new! ill start woeking on it tomorrow and see where things take me from there and hopefully everything gets fixed this go around.

 

[norcalstrokin]

hahaha oh my where do i begin it was a mess in there as you can tell by the picture. almost got it cleaned off should be finished my tomorrow hopefully and see how she runs after this tune up.

 

[lesterl]

Yup, a mess, get some pix of how it looks after you get it cleaned up (a before and after if you will) Let us know how she runs.....

 

[norcalstrokin]

I took the whole assembly off the bracket and now I see why cylinder 5 had a misfire. lol I couldn't even see inside the inside of line it was covered in sludge. lol I will get better pictures of it once I start working on it again taking a 10 min break. haha i well post pictures when everything is all nice and clean.

i was thinking about changing out coolant because i looked at the radiator cap and it looked brown lol

 

[lesterl]

Yeah, do the coolant flush/fill, also replace the LIM gaskets with the newer rubber over steel backing ones so that wont be a concern later on. Change the oil when you are done.

 

[norcalstrokin]

lol stupid question but where is the Lim gaskets located at? ive never done a coolant flush yet. I've been reading and see where they just get there garden hose and put it in there radiator and flush it like that and then some that use the dex-cool? what would be the best way to flush it out? thank you again for all the help.

 

[lesterl]

Lower Intake Manifold gaskets are directly between the heads and the yucky half of the intake you still have on the engine.

As far as a flush, usually you buy the flush stuff, drain, refill with water and the flush, run for a while (few days I did on mine), then drain, refill. Use distilled water if you can (it is $0.88 /gal at walmart)

 

[norcalstrokin]

I haven't been able to get it anything done due to work but now were on block leave so going to try and finish it within the next days so. I will be replacing the head gaskets too just taking precautions and making sure those aren't bad.

I got the the radiator flush/cleaner. I got two bottles of that. how many gallons of distilled water does it take?

I will be changing out the oil pan gasket due to it leaking and switching out the transmission filter. I am looking up jack stands will be buying from HF and cant deicide which ones to go with either the 3 ton or 6 ton?

 

[lesterl]

3 ton stands are fine, 6 ton are usually taller and harder/ clunkier to use....

Several gallons of water......

 

[norcalstrokin]

So after trying to get it registered I was unable too due to my army buddy not registerting when he bought im stuck with a truck that I cant drive. so now im just going to part it out and scrap it sucks because id like to keep it but oh well. Been trying to get ahold of him but no luck since he pcsed to other duty station. I got tons of parts for it that are brand new that im trying to get rid of. Soif anybody needs anything let me know. Ill put a parts list off all the new parts I got it.

 

[lesterl]

File for a lost title......

 

[norcalstrokin]

I tried but they wouldn't let me since its not under my name. All I need is for my buddy to be at dmv when I register it but trying to get him to come down is being a pain in the butt! So its just been sitting there. Lol

 

[lesterl]

I would wait, it is a nice looking truck......

 

[norcalstrokin]

I finally got it registered today after so much struggle at the dmv! Worst place on earth!!!! but now I got to finish tearing apart the top end and replace the head gaskets and intake and do the mfi conversion! i just hope once i put the distributor back once it well start lol that's the only real concern I have. lol i well post pictures of the work i did today. i took the intake off and starting cleaning all the gunk off that and starting taking off the cylinder heads but the back of the exhaust is covering the last two bolts that i did to take off and the last bolt on the manifold flange is kicking my a**!!!!! just can't seem to break it but i put some pb blaster on it and well try again tomorrow!! Hopefully have it running by Friday!! what would cause both windows from not rolling down? the switches didn't seem to work either when trying to lock it on both doors. would it be a relay or fuse or just faulty connection?

 

[lesterl]

Try torching troublesome exhaust bolts (I used a regular propane torch, get it pretty warm then try it again....)

 

[norcalstrokin]

well that worked! lol Im putting the cylinder heads back on what are the torque specs on all the bolts? by the spark plugs? and the main ones. i cant seem to find it. is it 65 pounds? and the sequence?

 

[lesterl]

65 Foot pounds (Final torque)Torque sequence --------------------- front | 13 5 2 10 | of |17 9 1 6 14| engine | 16 12 8 4 3 7 11 15 | ---------------------Final torque must be reached in 3 equal stepsRecheck final torque in sequence

 

[lesterl]

From www.autozone.com

 

[norcalstrokin]

okay so set the torque wrench at 65 and go throught it 3 times or go little by little but the last on has to be 65 pounds? stupid question but haven't done it a while.