very important!!
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Freshman User
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very important!! spark plug change woes
hope this isn't a repost
i just had to spend $500.00 yesterday to have all 10 of my injector plug hard caps replaced. changed my sparkplugs and unplugged the injectors along with the coils for better access to the plug holes. apparently, the connectors for the injectors should NEVER be unplugged from the injector. the service dept at the local ford dealer said that they will not unplug unless it is absolutely necessary. if they do have to unplug, they inform the customer that it is the customer's responsibility if the hard cap is damaged and needs to be replaced. i checked before the plug change for any tsb on tune up. none. i don't know if this has happened to anyone else on here but, if it runs worse after sparkplug change, check the injectors. other than that, runs great. doing the fuel filter next. hope that is uneventful.
'99 f-350 4x4 supercab chassis/cab
i just had to spend $500.00 yesterday to have all 10 of my injector plug hard caps replaced. changed my sparkplugs and unplugged the injectors along with the coils for better access to the plug holes. apparently, the connectors for the injectors should NEVER be unplugged from the injector. the service dept at the local ford dealer said that they will not unplug unless it is absolutely necessary. if they do have to unplug, they inform the customer that it is the customer's responsibility if the hard cap is damaged and needs to be replaced. i checked before the plug change for any tsb on tune up. none. i don't know if this has happened to anyone else on here but, if it runs worse after sparkplug change, check the injectors. other than that, runs great. doing the fuel filter next. hope that is uneventful.
'99 f-350 4x4 supercab chassis/cab
Last edited by irishkev; Mar 13, 2007 at 08:17 PM. Reason: adding
Postmaster
Joined: Nov 2001
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From: OK
LOL- 30 "views" is nothing. Don't sweat it when your post takes a while to get a response. 
As for the topic, I've never heard anyone talk about this before. Would be interesting to see if others have the same experience. Your dealer sounds like he might be full of it though... charging people for things they break while making other repairs?
As for the topic, I've never heard anyone talk about this before. Would be interesting to see if others have the same experience. Your dealer sounds like he might be full of it though... charging people for things they break while making other repairs?
Cargo Master
Joined: Aug 2005
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From: Alberta, Canada
I used to unplug the injectors on my 4.6 all the time as it went through a few build ups while I owned it including a supercharger. Never had any problems or heard of this before with modular engines. 
Hotshot
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Sounds like a heads up to me. I've never thought about it, but I will think twice before I carelessly pull on one . I'm watching this for more info.
Thanks for the warning. Warren
Thanks for the warning. Warren
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Sit. Stay.
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From: Washington State
Originally Posted by irishkev
30 views
no replies
must have been discussed before
no replies
must have been discussed before
Lead Driver
Joined: Sep 2003
Posts: 5,844
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From: Albuquerque
irishkev --
Curious...
What were the symptoms that the injectors needed to be replaced? What codes were set in the PCM?
Did you pull to hard on the injectors and break them during your spark plug change?
biz
Curious...
What were the symptoms that the injectors needed to be replaced? What codes were set in the PCM?
Did you pull to hard on the injectors and break them during your spark plug change?
biz
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Originally Posted by Monsta
Actually...there weren't any replies because you didn't ask any questions. Want fast replies to ANY of your future threads? Ask a question at the end.
and when i unplugged the injectors, i actually pulled very gently. i wasn't sue how they would come loose, either easily or difficult, so i was as careful as i could be. the problem, as the tech explained it, comes about when the injectors are plugged back in. the hard caps become brittle with the underhood heat and, when plugging back in, the little clip that presses in for removal either breaks completely off or breaks enough to not hold the hard cap on the injector. from what he said, this is a common occurence. the service manager is a friend of ours and she backed up the tech and his views. mabye it's just the florida heat that amplifies the engine temp under the hood. i do know this, if mine broke, as careful as i was, then someone else will probably experience my misfortune. i hope noone has to go through this. it would have been a lot cheaper to have it done at the dealer where they know not to unplug them. i wonder if ford will reimburse me since .....yeah, who am i kidding?</A">
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Originally Posted by biz4two
irishkev --
Curious...
What were the symptoms that the injectors needed to be replaced? What codes were set in the PCM?
Did you pull to hard on the injectors and break them during your spark plug change?
biz
Curious...
What were the symptoms that the injectors needed to be replaced? What codes were set in the PCM?
Did you pull to hard on the injectors and break them during your spark plug change?
biz
Lead Driver
Joined: Sep 2003
Posts: 5,844
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From: Albuquerque
Originally Posted by irishkev
injectors were fine--it was the electrical connector that had to be replaced. just the hard plastic around the electrical leads coming from the harness.
biz
Fleet Mechanic
Joined: Apr 2001
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Originally Posted by Super08
I used to unplug the injectors on my 4.6 all the time as it went through a few build ups while I owned it including a supercharger. Never had any problems or heard of this before with modular engines.