Misfired Cylinder Problem - P0302, P1399
#1
Misfired Cylinder Problem - P0302, P1399
Hi all,
This morning my car started rumbling fairly moderately, and the CEL started flashing. Brought it in to my usual highly rated auto shop, and they got two codes:
P0302
P1399
After diagnostic, they said they found the spark plug and coil pack need replacing, and valve adjustment for the #2 cylinder. However, they recommended that I replace the spark plugs, coil packs, and valve adjustments for all 6 cylinders. Total quote was $1169! That seems a bit expensive.
I asked how much it would be to replace only the cylinder #2 spark plug and coil pack, and they said it would be $120, a very large difference from $1169.
Question:
1. Do I need to replace all 6? Do I need valve adjusting?
2. I asked about clogged EGR valve and they said they didn't check, but said that it's not really an issue. Doesn't seem to match up with what other people on this board think.
3. Do you recommend replacing the spark plug and coil pack myself?
Any other thoughts are appreciated.
This morning my car started rumbling fairly moderately, and the CEL started flashing. Brought it in to my usual highly rated auto shop, and they got two codes:
P0302
P1399
After diagnostic, they said they found the spark plug and coil pack need replacing, and valve adjustment for the #2 cylinder. However, they recommended that I replace the spark plugs, coil packs, and valve adjustments for all 6 cylinders. Total quote was $1169! That seems a bit expensive.
I asked how much it would be to replace only the cylinder #2 spark plug and coil pack, and they said it would be $120, a very large difference from $1169.
Question:
1. Do I need to replace all 6? Do I need valve adjusting?
2. I asked about clogged EGR valve and they said they didn't check, but said that it's not really an issue. Doesn't seem to match up with what other people on this board think.
3. Do you recommend replacing the spark plug and coil pack myself?
Any other thoughts are appreciated.
#2
Moderator
iTrader: (1)
six speed or auto?
You should trouble shoot cylinder 2, by running the car and taking off that coil pack, if no change in sound, either the coil pack or plug is bad.
spark plugs are 7 bucks each.
$7x6plugs = $42.
6 coil packs are like = $50 bucks.
you can easily take off the EGR valve and clean it yourself.
your trusted mechanic isnt so trustworthy
You should trouble shoot cylinder 2, by running the car and taking off that coil pack, if no change in sound, either the coil pack or plug is bad.
spark plugs are 7 bucks each.
$7x6plugs = $42.
6 coil packs are like = $50 bucks.
you can easily take off the EGR valve and clean it yourself.
your trusted mechanic isnt so trustworthy
#6
3.5 psi
iTrader: (1)
Plugs and coil packs are extremely easy to replace yourself. There are DIYs here and people to help if you have questions. You could even post in the region section to see if someone local would give you a hand for a case of beer.
If I were you I'd replace those and see how the car runs.
If I were you I'd replace those and see how the car runs.
The following users liked this post:
justnspace (02-21-2014)
#7
Planning on replacing all 6 plugs, and the #2 cylinder coil tomorrow on my own. Will update as soon as it's finished. Any thoughts on the valve adjustment, though, assuming everything goes well with the plugs and coil?
Trending Topics
#10
Just finished replacing all 6 spark plugs (NGK Iridium IX), and the #2 cylinder ignition coil. Car is running perfect now! The only thing is..the other 5 cylinders are running on the old coils (only the #2 coil was broken). Could this have any long term effect?
#12
Eurotrash
On mine, coils 2 and 5 failed at the same time, so I swapped all 6 for new ones (Airtex/Wells brand from rockauto). Funny how it always seems to be #2 cylinder....
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