Bad Cop Good reader
Thread Starter
|
Senior User
Joined: Mar 2013
Posts: 151
Likes: 0
From: LITTLETON CO
Bad Cop Good reader
Hey guys, My 9 COP died and all I noticed was rough idle after the engine warmed up. I know my truck pretty well after 260 K but I would have figured losing a cylinder would be much more noticeable. My code reader does not indicate which cylinder is misfiring, in fact it did not show anything wrong. Here is my question. Do they make a reasonably priced code reader that will pin point a bad COP, if so send me the model. thanks
Hotshot
Joined: Jan 2004
Posts: 19,762
Likes: 1,079
From: St Louis
A "code reader" isn't going to cut it. You need a tool that is capable of reading the Mode $06 misfire count data. Fortunately, an inexpensive ELM-327 OBDII/BT interface, an Android device, and a $5 app (Torque) is usually all it takes.
Note: Edited to correct the app's name...
Note: Edited to correct the app's name...
Fleet Mechanic
Joined: Feb 2011
Posts: 1,812
Likes: 88
From: Thousand Oaks, CA
You may just have a boot that has deteriorated and is arcing thru.
The coils last a lot longer than the boots/springs.
A bad boot can cause lots of misfires which can been seen in the data before a code gets set.
You also might just have a little moisture under the boot of the misfiring cylinder.
Thread Starter
|
Senior User
Joined: Mar 2013
Posts: 151
Likes: 0
From: LITTLETON CO
Absolutely no spark from coil, installed new as I carry a spare and all is well. It is just a super pain in the **** to track this down. This is the first cop that has gone bad, but I have changed them out at each 75k service.
Elder User
Joined: Jul 2005
Posts: 974
Likes: 11
I had a COP go south on me earlier this spring. Driving to work, truck suddenly started running rough.
I have a Bluetooth OBD transmitter on board (as mentioned above), so I plugged it in, fired up Torque app on my phone and knew which cylinder was suspect within 5 minutes based on misfire count. Grabbed a new COP on my way home that very day and problem was resolved that evening. I consider the OBD transmitter and Torque app absolutely indispensable.
BTW, love the title of this thread.
I have a Bluetooth OBD transmitter on board (as mentioned above), so I plugged it in, fired up Torque app on my phone and knew which cylinder was suspect within 5 minutes based on misfire count. Grabbed a new COP on my way home that very day and problem was resolved that evening. I consider the OBD transmitter and Torque app absolutely indispensable.
BTW, love the title of this thread.
Fleet Mechanic
Joined: Feb 2011
Posts: 1,812
Likes: 88
From: Thousand Oaks, CA
I've changed boots 3 times and still have original coils at 168k.
Trending Topics
Elder User
Joined: Jul 2005
Posts: 974
Likes: 11
Good question. Unfortunately, I can't provide an answer. The COP/boot failed on a day when we were expecting a late snow storm and I absolutely needed the truck the next day. I didn't have the time available to do much troubleshooting. I just grabbed both boot and COP and threw them in. I know, I know...the ol' shotgun approach. Like I said, I needed the rig working 100 percent the next day.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
Thread Starter
|
Senior User
Joined: Mar 2013
Posts: 151
Likes: 0
From: LITTLETON CO
Thanks for the input I am going to get the reader and the app, sounds way cool. I agree swapping out COPS ever 75 is probably overkill but gonna do it anyway with my maintenance schedule, I use the Motorcraft which come with boot and spring and I dielectric grease the hell out of them.
Thread
Thread Starter
Forum
Replies
Last Post