Seattle area Yukon help
- Thread starter gsxrcop
- Start date
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SunlitComet
OBS Jedi-Do Good
Basically a snapshot of all live perimeters.
I replaced the cap, rotor and plugs when I replaced the head gaskets. I put everything back on the new motor. I may need to check the plugs. Could they foul from the coolant?
---------- Post added at 10:46 PM ---------- Previous post was at 10:45 PM ----------
Do you have an sample of what this looks like?
SunlitComet
OBS Jedi-Do Good
It is possible that is why I was asking if you have been burning coolant in your cylinders. The picture is a graphical example of a snap shot and will no way probably be what you have but you get the idea of the data at the same time. A video of that or even better running waveforms of O2 readings if possible would be great.
WiCK3D_SiX
Full Access Member
I've done this, back 2 cylinders were flipped iirc. Ran fine, no CEL, just sluggish.
It is possible that is why I was asking if you have been burning coolant in your cylinders. The picture is a graphical example of a snap shot and will no way probably be what you have but you get the idea of the data at the same time. A video of that or even better running waveforms of O2 readings if possible would be great.
That is very cool, but I have never seen something like this. My scanner is an older Snap on, and the readings don't look like that. I could post some running 02 readings if that would help and maybe some misfire readings/history.
I'm going to pull the plugs this weekend and see what they look like and possibly post a pic to show you if they look strange. Thank you.
---------- Post added at 08:25 AM ---------- Previous post was at 08:22 AM ----------
I'm not sure if the wires may be crossed, is the firing order for this 5.7 small block the same as the standard small block chevy? 18436572 I know the terminals come off the cap differently so maybe I switched a wire. Anyone have a pic of a cap with the cylinder numbers on it? Thank you.
SunlitComet
OBS Jedi-Do Good
You cap should already have the numbers on it. Below is a wire routing diagram and firing order from service manual.
Service and Repair
Spark Plug Wire Routing Right Side
Spark Plug Wire Routing Left Side
Ignition Firing Order
Specifications
Notes
---------- Post added at 11:17 AM ---------- Previous post was at 11:08 AM ----------
Btw, what model of snap-on you got? You should be able to do all kinds of stuff with it I would think.
Service and Repair
Spark Plug Wire Routing Right Side
Spark Plug Wire Routing Left Side
Ignition Firing Order
Specifications
---------- Post added at 11:17 AM ---------- Previous post was at 11:08 AM ----------
Btw, what model of snap-on you got? You should be able to do all kinds of stuff with it I would think.
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