Have a lincoln ls 3.0l codes po353,355,356 coil 5 is firing but cyl. making no difference. pulled inj. all were firing with some stoppage on 5,6 couldn't see 3.car seems to run well in koer test but is idling at 1600 rpm. also seems to run well for about 10-15 sec. when first cranking. fuel press. is 37 lbs.wondered about fail-safe cooling, which cyl. were cut off.removed vaccum to fuel regulator and 6 seemed to make a difference when unpluging the coil. can't get to 3 cyl.,plenum. bill
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Cylinder #1 (PO301) is misfiring,you have a bad COP (Coil-On-Plug) Ignition Coil that failed
I have a 2004 LS V8 I have had one fail twice & I had 7 fail at once ,all in the last 2 1/2 years,very,very common on fords with cop coils
The codes on a LS are not always correct if you have a really bad coil.
I have replaced coils based on a code as you have I have had to walk a new coil from one cyl to the next I also have used professional scan tool software on a note book successfully & recently had no luck with that & just replaced the remaining Original ford coil
So you have to learn as you go & kind of get involved & make love to the all troublesome fords & lincolns, some shop don't care for
I order my coils, etc from Rock Auto.Com About 30% less than autoparts store
You can do yourself if you have a V8 If you have V6 you can do the driver side & the pass side you have to remove the upper intake,so then you do all 3 coils bad or not, & save them for another day
If you go to a shop they better be on their game & not throw parts at it
I have had a bad battery cause similar issues I have had a bad battery cause all sorts of throttle body issues.
Stay away from a dealer I have seen people spend $2,500 with no results, when a $59.00 coil & 1/2 hour of your time, would solve the problem,IF you know the routine
If it's a 6 cyl.,3.0 you're in for some expense.The coil pack(s) is under the intake manifold.This involves much labor and draining of coolant,etc. don-ohio
PO 316 -- is a misfire on the first 1000 revolutions
You get that & sometime a lot of other codes you ignore
You may or may not have PO301 thru PO308 codes
The last # is the cylinder
1,2,3,4 Pass Side
5,6,7,8, Driver Side
Front to back
All you can do is buy one new coil and try it in
a cyl with a code or you may have to walk the
new coil from one cyl to the next and drive few
days in between.
The other choice is a repair shop with an oscilloscope
and the inductive coil pick up adapter
first question is it a four cyl? or six did u change the coil pack plug wire if a four cyl? did u use ngk plugs to replace the plugs? or it may be a fuel inj you would have to swap fuel injs with a different cyl to see if it follows the inj or stays with the cyl, if it stays may need to diag that cyl further compression check etc
sounds like it might be a fuel inj ,does it have a misfire code which cyl , try swapping fuel injs see if misfire changes cyls and follows fuel inj to different cyl
COP Coils
cyl 1,2,3,4 on pass side-front to back
cyl 5,6,7,8 on driver side -front to back
Remove coil covers on top of valve covers, 7mm socket and wrench
7mm socket and one screw holding coil
Codes PO 301 to PO 308 are your coil locations.Last # is cyl.
You get all sorts of codes, ignore all but the 301.302,etc
If you get an ETC Failsafe or shut down,a coil is spiking the PCM and coming back on both sides of the TPS and putting it into Failsafe. Still just a really bad coil. You will get about two a year.
I assume this has 8 coils,the one you are checking,is it the right one,have you located the exact cylinder miss fire?I believe,if I am not wrong,it has two coils per cylinder,It is showing this on the code.It is the primary coil,coil A ,the secondary coil is not showing up,any way, it is showing that the boot on the coil is leaking,and not sparking the spark plug.Let me know if I can help.
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