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Pickups Ford F-Series Ford F-Series Rough Idle/Vibration Problems
136 messages, Last post on Nov 06, 2009 at 7:23 AM
You are in the Ford F-Series Forum. Your Host is kcram
| I own a 2001 F250 and notice that this seems to be a common problem occuring in all F-series trucks, has anyone got any ideas what could cause the rough idle, in my case this is intermittent and when I mash on it it goes away then returns when maintaining a constant speed. I have changed my fuel filter as well and was told that if the coils had and issue there would be a code. All suggestions are appreciated. | |
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Replying to: macisaas (Nov 13, 2008 9:39 am) Don't believe the techs when they tell you bad coils will throw a code. They will ONLY if they have continuous misfires. Intermittent misfires won't throw a code. If you have anywhere near 100k miles on the truck, you need new plugs AND coils. Do a search on ebay, you can find them for around $100 for a full set, vs $45 each at the dealer. Get Autolite plugs at the local parts store. Changing the plugs/coils yourself will require patience and about 2.5 hours. Use dielectric grease on the boots.
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Replying to: joemama33 (Nov 13, 2008 10:03 am) Cheers. |
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Replying to: popochito40 (Feb 23, 2007 6:30 pm)  
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Replying to: capt_jack11 (Nov 17, 2008 7:48 am) - tire balance - a worn shock - ball joints - remaining front end components You will find one of those will be out of spec. kcram - Pickups Host |
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Replying to: tdmadmac (Aug 06, 2008 9:04 pm) We also drove 3 more F-150 2008 an 2009 and they were worse than ours. Ford now will not do any more to fix the problem. Have you thought anymore about a class action suit? Our Service manager said he will support us with documentation.
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Replying to: macisaas (Nov 13, 2008 9:39 am) I have an '04 F150 4.6L with almost 70K miles that has a rough idle while sitting still, and has intermittent (though frequent) misses while lightly accelerating and then after I have leveled off to maintain a constant speed. It is getting a little worse each day. I had it hooked up to a diagnostic machine at a local auto parts store that read a misfire on cyclinder 2. I had the fuel system professionally cleaned, air filter changed, oil changed, and it still is doing it. I was just wondering if you got your problem fixed because it sounds the same as mine. Thanks!
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Replying to: xxjed (Dec 20, 2008 9:07 am) |
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Replying to: glennlinokc (Nov 09, 2006 9:06 am) |
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Replying to: KarenS (Apr 03, 2006 8:59 am) Transmission also slips on hills at 20k they said nothing is wrong. I love fords but this may be my last. f-150 2005 lariat.
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