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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 have had my truck in 3 times so the dealer could check out a vibration I'm having. They dont seem to know what it is. I feel a vibration at idle around 550 RPM. If I push the gas a little it seems to smooth out. The vibration comes back around 1100 rpm then smooths out again then back at around 2200 rpm. The dealer had a TSB about the electronic module needing to be reprogramed and they did that but it did not help. Then they did some adjustment with the engine mounts but that also did not help. It seems to me that the engine is out of balance. Has anyone here had this problem that has been solved? I would appreciate any info because I'm taking it back to the shop next week. | |
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Replying to: sgood (Mar 24, 2006 9:05 pm)
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Replying to: sgood (Mar 24, 2006 9:05 pm) |
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Help!. 04 F-150 XLT 4x4 with the 4.6. w/rough idle. It had 5,700 miles on it at purchase, and now has 19,000. Soon after purchase, the rough idle was noticed. Noticable in park, worse in drive when waiting at a light. Gets better with A/C or defroster on. Multiple times to the dealer, one TSB done with no success. MAF cleaned, and new air filter. Might be my imagination, but seems to get worse when I have 1/4 tank or less of gas. Any ideas?
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Replying to: kulczak (Apr 11, 2006 5:28 pm) I joined this forum just recently as I was looking for some help for my own '96 V-8 F-250: it started to randomly go into high reps, which was especially nasty when stopping at a red light, but was also noticeable when driving slowly. I followed some advice I found under this topic here, i. e. I cleaned the connectors to the MAF and cleaned some vacuum connections on top of the engine, a week ago. It seemed to have soleved the problem, thanks to God! |
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Replying to: sgood (Mar 24, 2006 9:05 pm)
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| My truck started to idle funny about a year ago first it reved up real bad and now it has reverted to opposite, its idle is way low and sometimes stauling and bucking. When i am moving there are no problems just when i am stopped or in park. Does anyone have any idea as to what might be the problem? I have tried to figure it out myself and even have taken for the diagnostic tests and it has not helped me! | |
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Replying to: elad (Dec 09, 2006 9:57 am) |
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Brief history:I discover this 11 months after bought new.Went to the dealer several times,they didn't has a solution only to try to reduce Idle vibration.Contact Ford Hotline and denied my claim they said is "normal characteristic of this motor";last week I went to arbitration with BBB Autoline and arbitrator said is a defect of the car,is not a normal characteristic,but she denied too my claim.She said instead the problem exist,is not sufficient to said that truck is unsafe,lost value bla bla bla...I will continue with state arbitrator.Rightn now I have a truck,paid $31000,less than 17000 miles,under warranty,with a "defect",without fixed and waiting.Is incredible Ford!!!!!! 
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Manufacturer only said is "normal Characteristic",they know is a problem,is a defect of this truck but trying to explain consumers is not affect normal operation of the truck.Is a "Big defect" but infortunately is not easy try to fight with Goliath.Is incredible that I have a truck with this defect and I can't due nothing at this time.i think if I lost again my only solution is go to other dealer and try to trade and don't mention nothing. 
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