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Silverado & Fullsize Pick-ups The Silverado has been one of the best selling trucks in the US for decades, and is truly proven to be "like a rock".

2014 Chevy Silverado
Platform: Truck, GMT 400, 800, & 900
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  #1  
Old 02-28-2008, 12:02 AM
 
Join Date: Aug 2006
Posts: 2
Default Cylinder order 98 5.7 vortec

I have clicked so may websites now that my poor little mouse finger is throbbing. (boo hoo, right)

Truck was running like crap, so I changed the plugs a nd wire on my 98 Z71 today and it ran much better. But if I got into the pedal really heavy thewhole truck would begin to shudder and it finally through a SES light. Took it to the autozone and had them read the code......mutliple misfire. Next point of attack was the Distributor and rotor. Replaced them both and had a major misfireing thing going on. Thought itmight be crappy parts from Autozone, soI put the original cap and rotors back on andthe problem remained. Hmmmm....I may have switched a couple of wires at the distributor.So my question is, given that the distributor is labeled with cylinder numbers, how do I know which cylinder is number one vs number 8?

That's probably a rookie question, but i had to ask since I've scoured the net and found jack.
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  #2  
Old 02-28-2008, 12:38 PM
 
Join Date: Feb 2008
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Posts: 158
Default RE: Cylinder order 98 5.7 vortec

Very simple, when facing the motor the cylinder to your front driverside is number one then to you front passenger side is number 2.

8D 7 That is how it should look when facing it. and D is Distributor obviously.
6 5Hope that is what your asking.
4 3
2 1
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1994 K2500 454 4L80E 14bolt 10.5" w/ 4.10's
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Old 02-28-2008, 12:51 PM
 
Join Date: Feb 2008
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Posts: 158
Default RE: Cylinder order 98 5.7 vortec

1-8-4-3-6-5-7-2 is the firing order and if I remember right, it runs clock-wise around the distributor. Remember you need to have the ignition firing on cylinder number 1 so you know where to start counting on the cap, you understand what i'm saying?
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1994 K2500 454 4L80E 14bolt 10.5" w/ 4.10's
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Old 02-28-2008, 08:20 PM
 
Join Date: Aug 2006
Posts: 2
Default RE: Cylinder order 98 5.7 vortec

Yeah your first response was the answer I was looking for. I had two of the wires crossed at the distributor. Either the 2 and 4, or the 4 and 6. As you can imagine, it ran like crap.It took me two real good looks at it tofind the problem. After I found the problem I went ahead and switch the distributor cap and rotor back to the new one aswell as changed the ignition coil. Fired right up and runs like a scalded dog now. Better than it has in the 8 years I've owned it, or it least it seems that way to me.I was beginning to getdiscouraged, so thanks for the info.
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Old 02-28-2008, 09:44 PM
 
Join Date: Feb 2008
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Posts: 158
Default RE: Cylinder order 98 5.7 vortec

Well thats good to know it worked for ya.
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Old 02-28-2008, 09:44 PM
 
 
 
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1994, 1995, 454, 57, 94, 98, chev, chevy, cylinder, distributer, engine, fireing, firing, k2500, location, misfire, order, vortec


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