P0307 and stability track errors are back…
my plugs and wires have ~20k on them.
Also getting the attached p0899 error
my plugs and wires have ~20k on them.
Also getting the attached p0899 error
Last edited:
P0307 and stability track
- Thread starter seatown
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wjburken
Supporting Member
Stabilitrac will shut down if it senses excess vibration and if the ABS system is wonky. I’ve had it kick off the stabilitrac system on a rough gravel road. A misfire might be just enough of an issue to trigger this, depending on how frequently it is misfiring.
What year is your vehicle?
What year is your vehicle?
mrhp
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The misfire will disable the Stability system. Fix the misfire and Stability warning will be gone as well.
I thought I had it fixed when I pulled 7 and gapped it last time….
Plug doesn’t look too bad. What else should I check?
40K on them ??
change plugs - don't "gap" irridium plugs
buy the correct ones to begin with and install them
Change Plug wires...
Then see if that changes your misfire on cyl 7.....
IF not, try changing around coil packs to see if misfire follows
Proceed
change plugs - don't "gap" irridium plugs
buy the correct ones to begin with and install them
Change Plug wires...
Then see if that changes your misfire on cyl 7.....
IF not, try changing around coil packs to see if misfire follows
Proceed
mrhp
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- Aug 24, 2022
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^^^ Good info
What is question on 40k?
Got them from orielys oem ac delco
Gap was maybe 1 or two thou off I forget, barely moved the ground. That maybe didn’t do anything to solve.
Changing around coil packs, I’ll have to look what this means. I think I need to go here next
Saw this somewhere else, this what you mean @froggy
“if you have a misfire on cylinder 7...swap a coil, wire and plug with one from a non misfiring cylinder. the misfire will either follow the coil/plug/wire or stay on #7. if it follows...replace plug/coil/wire. If it stays on 7...do a compression check on #7. If it’s low, you have a mechanical problem on #7. If you have an afm engine (no idea what engine you have) 7 is a afm cylinder and it may have a collapsed lifter.”
“if you have a misfire on cylinder 7...swap a coil, wire and plug with one from a non misfiring cylinder. the misfire will either follow the coil/plug/wire or stay on #7. if it follows...replace plug/coil/wire. If it stays on 7...do a compression check on #7. If it’s low, you have a mechanical problem on #7. If you have an afm engine (no idea what engine you have) 7 is a afm cylinder and it may have a collapsed lifter.”
