97 K3500 CC 454 project

[Works4truckparts88]

Also found the OG manual! It's in pieces but it's there. As well as receipt for fuel pump work done in 2014 lol decided RPO codes, has 4.10 gears and gov-lock assuming nobody has been in there yet.

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[Sparkysikes]

California! I'll give you $1500 right now!

Man I need to get back to my cclb dually. Just a leaky valve cover. I need some motivation. Get into the thing and make me wanna move on mine!

 

[Works4truckparts88]

Not much going on with this thing lately, work is nuts right now.
Did go through and check some stuff today for the misfire issue. MAF looked clean, no reason to suspect it. Fuel pressure is 55 primed, 50 idle. Bleeds down 8-10psi in a minute with key off. Starts right away tho, no trouble. Pulled plugs, I think 4 were wet with fuel but the others were dry.
Going to rent a compression gauge tomorrow to verify base engine is good.

 

[HotWheelsBurban]

Also found the OG manual! It's in pieces but it's there. As well as receipt for fuel pump work done in 2014 lol decided RPO codes, has 4.10 gears and gov-lock assuming nobody has been in there yet.

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Mine was like that too. I fixed it with Elmer's white glue and held it in place with a bunch of rubber bands. Looks like new now. The glue dries clear and is similar to what the manual was assembled with from the printers. Just don't get heavy handed with it or you'll glue up more than you want to!

 

[Carlaisle]

Fuel pressure is 55 primed, 50 idle. Bleeds down 8-10psi in a minute with key off. Starts right away tho, no trouble. Pulled plugs, I think 4 were wet with fuel but the others were dry.
Going to rent a compression gauge tomorrow to verify base engine is good.

You have a problem. If you run it for about 15 minutes, turn it off for 15, and then try to restart what happens? Also, what's on your odometer? Be particularly diligent with the compression readings on the cylinders with the wet plugs.

 

[Works4truckparts88]

You have a problem. If you run it for about 15 minutes, turn it off for 15, and then try to restart what happens? Also, what's on your odometer? Be particularly diligent with the compression readings on the cylinders with the wet plugs.

I havent run it to temp and tried restarting yet. When I went to look at it, it ran for maybe 5-10 minutes and didn't have issues restarting. I will be testing tomorrow morning and will post back with results.

 

[xjsciortino]

Wet plugs and fuel pressure drop sounds like a pressure regulator. If you swap it out, I'd look into upgrading the injectors too while you have it apart. I've heard there is a ford injector that has 4 holes that works in place of the 454 injector. Should atomize fuel better which should give a slight mpg boost and slight power increase. Injectors are the next thing I want to upgrade for my truck, but the weather kinda kills any work for me lately

 

[Works4truckparts88]

Wet plugs and fuel pressure drop sounds like a pressure regulator. If you swap it out, I'd look into upgrading the injectors too while you have it apart. I've heard there is a ford injector that has 4 holes that works in place of the 454 injector. Should atomize fuel better which should give a slight mpg boost and slight power increase. Injectors are the next thing I want to upgrade for my truck, but the weather kinda kills any work for me lately

That and the fact the oil smells of gas...suspecting leakage like you said that's causing the wet plugs, the misfire, the rich exhaust, the fuel in oil, and pressure drop...we'll find out tho!

 

[94K3500PROJECT]

I’m betting that it died randomly back when it was originally a towed. I’d also bet it’s because of the FPR.

had one do the same on a different GM vehicle and eventually it would dump fuel like you can’t even imagine (car wouldn’t run at that point)

 

[94K3500PROJECT]

Sweet truck too btw.
I searched for a year trying to find a 454 crew cab (or even extended cab) with an nv4500 5sp
Ended up settling for a low mile 350/nv4500 crew