Coil Pack Help
01-30-2008, 09:37 AM
#11
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Originally Posted by willwren
For P0300, clean the posts on the coils, check the resistance of the wires while a friend gently bends and lightly twists them, inspect all 6 plugs to see if it'* isolated to one or two.
If a coil were bad, it would take out two cylinders. If a post is corroded, it could be a random on one. Make sure your #5 and 6 wires aren't touching the O2 harness, and make sure no wires are arcing to ground. The best way to check that is to lightly mist the engine with water (windex bottle) at night while you idle with the lights off.
If a coil were bad, it would take out two cylinders. If a post is corroded, it could be a random on one. Make sure your #5 and 6 wires aren't touching the O2 harness, and make sure no wires are arcing to ground. The best way to check that is to lightly mist the engine with water (windex bottle) at night while you idle with the lights off.
What should the resistance be in the wires? Anything in specific to look for on the plugs?
01-30-2008, 09:55 AM
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All plugs should look exactly the same. Any that look different will point you towards your problem. I suggest keeping them in order as you pull them and shooting a pic to post here.
Wires should be an even progression of resistance from 1, 3, 5, then a bit of a jump, and 2, 4, 6. 4 and 6 should be nearly identical in most sets.
Wires should be an even progression of resistance from 1, 3, 5, then a bit of a jump, and 2, 4, 6. 4 and 6 should be nearly identical in most sets.
02-04-2008, 12:31 AM
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I sprayed the wires and didn't get any sparks.. I'll be pulling the plugs in the next day...
The plugs and wires were replaced and the problem was still there... could it possibly be a vacuum leak?
The plugs and wires were replaced and the problem was still there... could it possibly be a vacuum leak?
02-04-2008, 02:55 PM
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Pics of plugs
Originally Posted by willwren
All plugs should look exactly the same. Any that look different will point you towards your problem. I suggest keeping them in order as you pull them and shooting a pic to post here.
Wires should be an even progression of resistance from 1, 3, 5, then a bit of a jump, and 2, 4, 6. 4 and 6 should be nearly identical in most sets.
Wires should be an even progression of resistance from 1, 3, 5, then a bit of a jump, and 2, 4, 6. 4 and 6 should be nearly identical in most sets.
1) ~ 5.03 2) ~ 12.11
3) ~ 7.88 4) ~ 12.94
5) ~ 8.15 6) ~ 13.00
Checked the plugs too, all look the same except #4. It has ashy residue on it:
All the plugs:
Nos 2 and 4:
#4 closeup:
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