vortec 454
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99 k3500 454 stumbles at idle and taking off from stops
I had a previous post talking about my truck going though distributors caps to recap that I had the same issue twice loss of power and missing. First time truck started shaking and loss power and eventually no start it was pretty clear that it was missing very bad so I did plugs, wires, and...- 2boys1truck
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- rough idle stumbling vortec 454
- Replies: 4
- Forum: 96+ Vortec Performance + Computer Swaps
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99 completely stock 454 upgrades
I'm completely satisfied with this pickup as far as pulling and everything. I know there is no helping gas milage. I didnt buy it for gas milage. I'm curious what are some of the easier ways to boost HP, or do I wait till stuff starts breaking to do that? kind of new to the big block family. Or...- dontworryboutit
- Thread
- vortec 454
- Replies: 20
- Forum: Engine Performance + Maintenance
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Shaky Idle
Hello all! Hope You are having a great day. I was hoping you guys could potentially help with a slight dilemma I have. I have a 1996 k3500 with a Vortec 454. Ever since I bought my truck back in August I've had a slight shake in my idle nothing serious just something that annoys me when I'm at a...- OB1214
- Thread
- 7.4l vortec idle rough idle shaky vortec 454
- Replies: 38
- Forum: Engine Performance + Maintenance
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LOUD rattle when engine starts
Hello, I’ve came here as a last resort because I’ve tried everything I originally planned on doing plug wires, spark plugs, and a cap and rotor as regular maintenance All was well until I went to fire it up again. And it makes a horribly loud rattle It doesn’t do it when the starters...- OrgasmicLarry69
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- 454 engine noise gen 6 loud rattle vortec 454
- Replies: 26
- Forum: Engine Performance + Maintenance
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Dual 3" exhaust?
Hey all, I'm new to the forums here. I have a 1998 K2500 with the 7.4L and 4L80e. Currently all it has is a CAI, true dual cat-back 2 1/4" straight pipes, and a custom 93 octane tune that was live-tuned using HPtuners. The exhaust is raspy as can be and I'm about tired of it (it was like that... -
Vortec 454 Oil Recommendations
I did some searching and didn't find anything, but if there is already a thread for this that someone could point me to that would be much appreciated. I bought a '98 K2500 Suburban with the Vortec 454 about a month ago and did my first oil change on it this past weekend. I went what the...- spacklesworth
- Thread
- oil vortec 454
- Replies: 25
- Forum: Engine Performance + Maintenance
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1999 454 running rich
My truck is a 1999 k2500 ccsb with a 454. I just bought it this year and it’s been running really rich since I had it. I replaced the O2 sensors, replace all in injectors with a new fuel rail and fuel pressure regulator, new fuel filter, new fuel tank with a new fuel pump, then I replace the...- Dusty Parks
- Thread
- k2500 running rich vortec 454
- Replies: 8
- Forum: Introduction
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92 2500 6 lug 4x4 NV4500 built SBC ext cab short box long term build- Latest: Sean Buick 76
