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Ford F-Series Rough Idle/Vibration Problems

182 messages,  Last post on Mar 04, 2013 at 5:14 AM

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What is this discussion about? Ford F-150, Engine, Truck

Messages Page 15 of 19

#133 of 182 2004 F150 engine vibration by gseterry

Aug 20, 2009 (4:27 am)

Replying to: elad (Dec 09, 2006 10:57 am)
Heads up:
Please focus on certain areas when these types of quirks develop.
550 rpms - shake (not miss), 1100 rpms - shake, 2200 rpms - shake.
Notice the rpms DOUBLE each time? Dead give away !
I can just about promise it is there at 4400 too.
This is an imbalance issue. Thrown Torque Convertor weight?
I've built racing and industrial, gas and diesel engines for 40 years.
I have a 85% all Light duty Ford Truck Fleet - nation wide
Now how to get the factory on board with recognizing this and fixing it?
Good Luck........
Terry

#134 of 182 Engine backfiring/rough idle/vibrating by rgriego

Sep 18, 2009 (7:15 pm)

Hi, is there anyone out there who can direct me to a good web site that can help me figure out why my 1978 f-150 400 4wd vibrates, backfires and holdsback. Just put new plugs, wires, distributor shaft, cap and rotor, and carb. Any suggestions. Has fairly new motor, with only 30,000 miles. When I reach about 30 miles an hour it begins to backfire, vibrate and hold back. Could it be timing is bad though it was just set about a year ago. Vaccum, carb? HELP!

#135 of 182 Re: 2006 F-150 Vibration worse when towing [tdmadmac] by sammor

Oct 03, 2009 (6:03 am)

Replying to: tdmadmac (Aug 06, 2008 10:04 pm)
do you have any more info on what is causing the vibration, I have a 2007 E150 in my shop with the same problem, vibration at 1800 rpm, I removed the torque converter and reinstalled the transmission and started the engine, vibration still there so it's definitely engine related. I replaced the harmonic balancer, no change. Any info would be appreciated, I think it's internal.

#136 of 182 Re: 2006 F-150 Vibration worse when towing [sammor] by vertman

Nov 06, 2009 (8:23 am)

Replying to: sammor (Oct 03, 2009 6:03 am)
I have the exact same vibration in my 03 navigator. Anybody solved this issue yet?

#137 of 182 Re: 2005-2007 F150 5.4 Engine vibration varified in 7 trucks [tdmadmac] by ninjohnsu

Dec 18, 2009 (11:21 pm)

Replying to: tdmadmac (Jul 25, 2008 4:40 pm)
I have the same problem. I just bought the truck used with 22,500 miles from a non-ford dealer with a 30 day warranty. So they took it to a ford dealer for diagnosis.
They kept if for two days and took apart fuel injectors. then they replied with the truck is normal. I think their full of it and are protecting the other dealer.
But I did sit in another F-150 on the lot with a 5.4 and it did the same thing?
Prior to this I took it to my regular mechanic and he ran into the same problem in a Crown Victoria. The problem is in the Torque converter. sludge build up and it make the torque converter out of balance? I am also experiencing a loud lifter noise, and the truck sounds like a Diesel too?

#138 of 182 Re: 1100RPM and Idle shake solved. (maybe) [sml175] by mrstreetrod

Feb 01, 2010 (9:27 am)

Replying to: sml175 (May 26, 2009 10:17 am)
I have a very similar problem, except mine exists down at the 500rpm range and is quite intermittant. I'm having trouble with any help from Ford or ownership from Ford on this issue.
 
In our case, we have a rich condition, this turned out to be a broken roller cam after almost 20 hours of diagnostics. It was actually my idea to remove the valve cover. Anyway, new cam, roller lifer on bank 1. Then we developed the occasional P0012 problem, replaced VCT out of pure frustration, maybe a bit better but still there. All the work has been done at a Ford dealer because of time and weather in Wisconsin.
 
Does anyone have any ideas. The truck has 90K and we started out doing a simple spark plug exchange and 100K tuneup, now $3000 later, this is nuts.
 
Suggestions welcome.
 
Regards,
 
Douglas

#139 of 182 Cam follower retarded p0012 - low speed idle vibration by mrstreetrod

Feb 01, 2010 (10:02 am)

Vibration idle very similar to others in this thread, except mine exists down at the 500rpm range and is quite intermittent. I'm having trouble with any help from Ford or ownership from Ford on this issue.
  
In our case, we have a rich condition, this turned out to be a broken roller cam after almost 20 hours of diagnostics. It was actually my idea to remove the valve cover. Anyway, new cam, roller lifer on bank 1. Then we developed the occasional P0012 problem, replaced VCT out of pure frustration, maybe a bit better but still there. All the work has been done at a Ford dealer because of time and weather in Wisconsin.
  
Does anyone have any ideas. The truck has 90K and we started out doing a simple spark plug exchange and 100K tuneup, now $3000 later, this is nuts.
 
Actually no one from Ford has suggested the PCM re-flash. I'm going to check into this.
 
Interestingly, this was not a problem before the tune-up plug change etc. Go figure.
  
Suggestions welcome.
  
Regards,
  
Douglas

#140 of 182 Yet another one... by bunedoxx

Feb 15, 2010 (12:39 am)

...and here is yet another one for the growing list of F-150s with vibration problems. We have a 2005 Ford F-150 FX4 Lariat edition. In between 55 - 65 mph it rides like there is a tire that is out of balance. We have since put new tires, lower ball joints, tie rods, U joints, spark plugs, alignments, and even had the drive shaft rebalanced trying to fix that mysterious "HOP". We took it to Ford only to have them start fixing irrelevant things and billing us for it. We were informed that the Cam shaft phasers need to be replaced (which is causing the engine to have a ticking noise to it).... We now are starting to experience that engine shake you have read about in previous posts. When it does decide to shake, it begins around 1100 rmp's or about 45 - 60 mph. It is at its worst when there is weight in the back, or towing. For those of you who have not experienced it yet, it will scare the s*** out of you when you do exp. it. The best way I can descibe it .....it feels like driving on rumble strips on the side of the road. Has anyone, anywhere come up with a solution to this? Any ideas? Whether or not your vehicle is warrantied...it is beyond me how Ford can get out of a problem that is becoming oh so common. As much as I LOVE our F-150.....im almost tempted to buy a Toyota at this point.........ALMOST. I would greatly appreciate it if ANYONE ANYWHERE had any insight to this problem that they can share.
 
...at wits end.
Bunedoxx

#141 of 182 2007,4.6 rough idle by truckcity

Feb 17, 2010 (7:27 pm)

I purchased my vehicle used, with 71,000 miles and it has a very bad rough idle and at first they claimed that it probably needed fuel injector service. I brought the truck in for service and after they hooked it up to there super duper diagnostic equipment, they determined that it needed a new electronic throttle-body. well that didn't fix the problem and so the spark plugs were replaced and that still didn't fix the problem, so now they're saying that the rough idle is a characteristic of the 4.6 engine, which is a bunch of bull. I have hired a lawyer and we'll probably go to court over this matter, but in the mean time, I have advised the majority of any potential Ford buyer to not buy a Ford product with the 4.6 engine. I will also print about a 1000 flyers and pass them out to the public,the flyer will say " 4.6 IS DEFECTIVE".

#142 of 182 4.6 Rough Idle? by bunedoxx

Feb 18, 2010 (9:26 pm)

Hey Truckcity......check your cam shaft phasers. We have an F-150 with the same problem, however ours is a 5.4, not a 4.6. Ours too has the rough idle (also a ticking nosie) .....we have been told several times by Ford that its the cam shaft phasers causing it (its slightly out of time), we just have not had the spare $ 1000.00 to get it fixed yet. I am unfamiliar with motors, but am learning automotive real quick (not by choice)....so if your 4.6 is anything like our 5.4, check your cam shaft phasers.

Messages Page 15 of 19

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