View Full Version : hesitation!
rangerwheelinmike
03-18-2012, 12:10 AM
when i take off and trucks not wormed up if i put it half way to the floor it hesitats real bad and if you dont let back off the gas the check engine light will start to blink then after a min it will go off if you check the codes when the lights blinking it has a code for cly 3 miss fire. also has a hesitation when its wormed up and you floor it from a stop but the light dont blink? could it need plugs? or could it be something elce? i also olny get abought 12mpg driveing easy
bigred5.4l
03-26-2012, 02:21 AM
Miss firing can also be bad timing. Changing spark plugs will be very time consuming. Just get a mechanic to look over it
rangerwheelinmike
03-27-2012, 12:36 AM
it is fine if you drive easy but today i was geting on the eway and there was a line of cars comeing so i floored it it goes but the check engine light started blinking and the truck would shake for abought a min then the light went off and it was fine.. by the way my truck has 206k miles on it other then that it runs and drives like its new i have no idea when the plugs and fuel filter and stuff like that was changed i got it with 180,000 some on it
codwel09
04-09-2012, 06:30 PM
I have the same problem sometimes an other times it runs like a dream and mine did that with 60000 miles on it. Let me know what you figure out, I'm still working on finding a solution too, so of I find anything before ya I'll let ya know. Thanks!
Silver 2005 XLT SuperCrew 5.4L 5.5' bed
rangerwheelinmike
04-10-2012, 11:59 PM
i really havent messed with it it olny does it if its cold or i floor it geting on the eway and it revs out i think cly 3 coil pack could be bad gunna swap it with another cly and see if it changes if so ill replace it might be better on gas to
It could be as stroke as a tune up but I like your theory mine has about the same miles on it and it started missing and hesitating so I changed all the plugs and coil s runs like a dream now and getting about 20 MPG on the high way
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Easy my bad not stroke
codwel09
08-24-2012, 10:29 AM
I have about 101k on my 05 and it does the same thing when I get on it, but only at about 3-4k rpm. It threw a cyl 4 misfire code. I swapped the coil, no light then but it still had the problem. Changed the spark plug and problem still existing. Haven't changed the coils and plugs but I would say its time for a tune up. That what I'm gonna do to mine.
I'll try that and respond back to the thread as soon as I get it taken care of.
If anyone else has done that post on the thread and let us know any differences!
Jersey_Joe
08-24-2012, 03:09 PM
Sounds like u should change ur coil pack on cyl 3. And throw some motorcraft plugs in it. It's a Comon prob. Coils should b changed from 80-100k. Any hesitation that u have should b gone after that. And with normal driving and a good airfilter and exhaust u should get a solid 15mpg. I'm getting 20-21 in my 03. Lots of mods and a good tune got me that. But just sayin. I think coil pack and a set of plugs will wake her right up
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Codwel09 do u have a three valve motor? 05 right? My buddy's truck did the same thing we changed them all. All the coils and plugs. Sometimes the other cylinders r ready fer could too. They r just not that bad to we're they r throwing codes yet. That's what I've learned in this case anyway. Hope I was some help fellas. Leme know how u make out
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Change not could. Damn iohone
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Phone. See...
kozal01
08-24-2012, 04:00 PM
Mike I would swap that COP from cyl 3 to another cyl. If the missfire moves to that one than youll know its the coil. If it doesnt change I would consider changing plugs.
codwel09
08-24-2012, 10:25 PM
Sounds like u should change ur coil pack on cyl 3. And throw some motorcraft plugs in it. It's a Comon prob. Coils should b changed from 80-100k. Any hesitation that u have should b gone after that. And with normal driving and a good airfilter and exhaust u should get a solid 15mpg. I'm getting 20-21 in my 03. Lots of mods and a good tune got me that. But just sayin. I think coil pack and a set of plugs will wake her right up
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Codwel09 do u have a three valve motor? 05 right? My buddy's truck did the same thing we changed them all. All the coils and plugs. Sometimes the other cylinders r ready fer could too. They r just not that bad to we're they r throwing codes yet. That's what I've learned in this case anyway. Hope I was some help fellas. Leme know how u make out
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Change not could. Damn iohone
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Phone. See...
Ditto kozal.
And yea 3valve 05.
I'll see if I can't get that taken care of soon and repost on results
Raptor05121
08-24-2012, 10:29 PM
Mike I would swap that COP from cyl 3 to another cyl. If the missfire moves to that one than youll know its the coil. If it doesnt change I would consider changing plugs.
this. Never throw money at a problem. Troubleshoot and identify the problem, don't guess.
codwel09
08-24-2012, 10:50 PM
Well said. I'm in agreeance.
Jersey_Joe
08-25-2012, 08:22 AM
Def swap the coil. They r def right. I just think from my experience with my truck. That's a great place to start. I'd bet my $ that's what it is. If not? There r plenty of other options. But good luck. Here if u need anything.
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