Dying coils - do they throw a CEL code?
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Senior User
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Dying coils - do they throw a CEL code?
Just wondering.
I just started getting the dreaded shudder so I stuck a can of seafoam in it to see if that helps. Also ordered new injectors, but wondering if the coils might be starting to go? Do they throw a code, or is there a way to test them?
Also, who's got recommendations on where to buy them? I'd rather not (hoping it's the injectors since they are a helluva lot cheaper!) since I need to fix the windshield now too.
Grumble....
thanks guys.
-BN
I just started getting the dreaded shudder so I stuck a can of seafoam in it to see if that helps. Also ordered new injectors, but wondering if the coils might be starting to go? Do they throw a code, or is there a way to test them?
Also, who's got recommendations on where to buy them? I'd rather not (hoping it's the injectors since they are a helluva lot cheaper!) since I need to fix the windshield now too.
Grumble....
thanks guys.
-BN
Elder User
Joined: Jul 2004
Posts: 637
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From: Media, PA
As cbradford mentioned, you can get the coils off eBay for under $100. That's where I got the set of 8 I installed 12,000 miles ago and they're working great!
As for the codes when a coil is going bad, just speaking from personal experience, I did not get any codes until the misfire was really severe. I drove for 2 weeks with a misfire before it became so bad that the computer threw a code. But, when a coil is going bad, it's pretty easy to tell. Pain is you don't know which one until you get a code or do some switching COP's around to try and find it on your own.
As for the codes when a coil is going bad, just speaking from personal experience, I did not get any codes until the misfire was really severe. I drove for 2 weeks with a misfire before it became so bad that the computer threw a code. But, when a coil is going bad, it's pretty easy to tell. Pain is you don't know which one until you get a code or do some switching COP's around to try and find it on your own.
Fleet Owner
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$90 with shipping for a set of 8.
http://cgi.ebay.com/ebaymotors/IGNIT...Q5fAccessories
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You just got to know how to search!
$90 with shipping for a set of 8.
http://cgi.ebay.com/ebaymotors/IGNIT...Q5fAccessories
$90 with shipping for a set of 8.
http://cgi.ebay.com/ebaymotors/IGNIT...Q5fAccessories
Thanks. Coils on the way.
How the hell did you find those. I've been looking for days.
Fleet Owner
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I think we need a sticky at the top for "Ebay search terms that work for random parts."
Along with one that's a list of interchangeable parts from different years - now that I know they changed the step brackets from 97 to 98.
Along with one that's a list of interchangeable parts from different years - now that I know they changed the step brackets from 97 to 98.
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For the $90 it is worth buying them and leaving them in the garage. That way when you need one you don't have to wait for them to arrive. It costs around $70 to buy just one locally.
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From: Maryland
Need some help with the "dreaded shudder". Have a 2001 w/4.6 and just had a really bad idle, set a code and I replaced just the COP on number 3. Much better. But lately between 55/60 MPH if I gently step on the gas to just speed up a little I get a shudder, almost like a bump then smooths right out. I was thinking tans kick down - but it's so slight and otherwise the trans is working fine, this thread go me thinking - well is it the engine?
So can someone talk a little more about what this shudder is? Like you all have said for under 100 dollars I can just replace all the COPS anyway. Oh yes, 70,000 miles, guessing original plugs and now have two replaced COPS, engine had one when I bought it.
I know, lots to say, idle isn't bad and not the issue, so I am ruling out the IAC, but could it also be a function of the TPS? I ask all this as since it's about 100 dollars to hook up the Ford machine, maybe I do just replace a bunch of parts and hope?
Thanks for any tips
So can someone talk a little more about what this shudder is? Like you all have said for under 100 dollars I can just replace all the COPS anyway. Oh yes, 70,000 miles, guessing original plugs and now have two replaced COPS, engine had one when I bought it.
I know, lots to say, idle isn't bad and not the issue, so I am ruling out the IAC, but could it also be a function of the TPS? I ask all this as since it's about 100 dollars to hook up the Ford machine, maybe I do just replace a bunch of parts and hope?
Thanks for any tips
Fleet Owner
Joined: Apr 2008
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This sounds like it could be the lockup converter in the tranny trying to disengage. You might want to have a tranny shop take it for a test drive and see what they say about it.
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