Vibration at idle
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Junior Member
Joined: Feb 2001
Posts: 5
Likes: 0
From: Anchorage,AK, USA
Vibration at idle
Hello, I've just purchase a 2001 F-150 last month with 4.6/auto trans.The truck runs great at any speed,its got a lot of power.My concern is that everytime iam at a stoplight the vehicle have a bad vibrations at idle but when i place it in park or neutral the vibrations goes away.Have anyone ever come cross this problem with their truck?
I taken my vehicle to the dealership and they adjusted the base idle (increase) and they said that its normal.But all they did was made the vibrations more rapid.they also said to put more miles in the vehicle,i only have 300 miles on it, is this a normal condition for this truck before the break-in period?plz help.
I would like to exchange this truck for another f-150 has anyone ever done that,i only have 300 miles on it. Thanks
I taken my vehicle to the dealership and they adjusted the base idle (increase) and they said that its normal.But all they did was made the vibrations more rapid.they also said to put more miles in the vehicle,i only have 300 miles on it, is this a normal condition for this truck before the break-in period?plz help.
I would like to exchange this truck for another f-150 has anyone ever done that,i only have 300 miles on it. Thanks
Senior Member
Joined: Jan 2000
Posts: 398
Likes: 0
From: Hawaii
The exhaust system on many Fords has the tendency to resonate. My 5.4L does the same thing and it's definitely the exhaust resonating. If I run the engine, crawl underneath the truck and grab the exhaust, I can feel a significant vibration. Of course, I only do this when the exhaust system is cool, and make sure that there is sufficient ventilation. As for a fix, I remember someone adding weights to their exhaust. I took my truck in at 2K miles, and the dealership "realigned" the exhaust which worked for about 10 miles.
I'm kind of used to it after 7K miles.
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'00 5.4L AUTO 4X4 Lariat (Black/Silver)
'02 F-350 PSD CC DRW 6SPD 4X4 Lariat (order this year)
www.hawthorn-engineering.com
I'm kind of used to it after 7K miles.
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'00 5.4L AUTO 4X4 Lariat (Black/Silver)
'02 F-350 PSD CC DRW 6SPD 4X4 Lariat (order this year)
www.hawthorn-engineering.com
Certified Goat Breeder
Joined: Feb 1999
Posts: 6,182
Likes: 19
From: the moral high ground
Mine does it too. It did it last winter and went away in the summer. This winter it started again. Seems more pronouced when the truck is cold and its cold outside.
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1999 Ford F150 Lariat RegCab shortbed 5.4L 3.55LS Towpkg Line-X
15.714@85.21
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1999 Ford F150 Lariat RegCab shortbed 5.4L 3.55LS Towpkg Line-X
15.714@85.21
Technical Article Contributor
Joined: Dec 1997
Posts: 9,417
Likes: 11
From: Windsor,Ontario,Canada
silverblade,
If the exhaust checks out ok I would check the torque on the Converter to flexplate bolts. BTW have you checked the tranny oil level?
Regards
Jean Marc Chartier
If the exhaust checks out ok I would check the torque on the Converter to flexplate bolts. BTW have you checked the tranny oil level?
Regards
Jean Marc Chartier
Member
Joined: Feb 2001
Posts: 20
Likes: 0
From: torrance,ca,usa
SERIOUSLY......if it only has 300 miles on it, i would bring it back to the dealer and exchange it for a new truck.
my reason: in the age of fuel injection and tighter tolerances.....there is no reason on earth that 8 cylinders should cause vibrations on a production vehicle.
try comparing it to other new trucks...i am sure most will be smoother....and don't trust
the break-in excuse. all cars should be relatively smooth when new. don't buy it for a minute.
new motors should feel 'tight' and 'smooth'.
broken-in motors should feel 'eased' and 'smooth'.
my reason: in the age of fuel injection and tighter tolerances.....there is no reason on earth that 8 cylinders should cause vibrations on a production vehicle.
try comparing it to other new trucks...i am sure most will be smoother....and don't trust
the break-in excuse. all cars should be relatively smooth when new. don't buy it for a minute.
new motors should feel 'tight' and 'smooth'.
broken-in motors should feel 'eased' and 'smooth'.
Senior Member
Joined: Mar 2000
Posts: 244
Likes: 0
From: Mo US
y2kHarley!!!
Didn't you know -- rough idle and vibrations are "NORMAL" for the f150 5.4. It's caused by the "camshaft" at least thats what the ford "hotline" told the dealer that was last (to no avail) working on my truck. I am not kidding you here -- see the "rough idle/ engine miss thread" and you will see several instances where we have been fed this BS!!!
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99 F-150 XLT 4X4, SC, SB, AT, 5.4, Single CD
3.55LS, Tow pkg, Rhino Liner, Sportsman topper,
Westin black double step bars, Custom gold pinstripe, Bright Red/Gold
Didn't you know -- rough idle and vibrations are "NORMAL" for the f150 5.4. It's caused by the "camshaft" at least thats what the ford "hotline" told the dealer that was last (to no avail) working on my truck. I am not kidding you here -- see the "rough idle/ engine miss thread" and you will see several instances where we have been fed this BS!!!
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99 F-150 XLT 4X4, SC, SB, AT, 5.4, Single CD
3.55LS, Tow pkg, Rhino Liner, Sportsman topper,
Westin black double step bars, Custom gold pinstripe, Bright Red/Gold
Senior Member
Joined: Aug 1999
Posts: 1,565
Likes: 1
From: Columbus, Georgia
My 98 5.4L had a bad vibration at idle..the center arm rest would vibrate. My current truck is very smooth. Dealer says "break in period" huh?? Right! Mine has been smooth from day one.
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2000 F-150 XLT, 4x2, 5.4L Supercab, Superchip, Styleside, Black with silver two-tone, 3.55 rear, class III towing package with super engine cooling/auxiliary transmission cooling HD package, Heavy duty shocks, 4 wheel disk ABS, overhead console, sliding rear window, keyless entry, dark graphite interior, in dash CD, factory leather wrapped steering wheel, FORD bedliner, FORD black tubular cab steps, K&N air filter, mar-hyde rubberized undercoating, Modine climate filtration system, Bugflector II, Mobil 1 oil, build 7/2000
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2000 F-150 XLT, 4x2, 5.4L Supercab, Superchip, Styleside, Black with silver two-tone, 3.55 rear, class III towing package with super engine cooling/auxiliary transmission cooling HD package, Heavy duty shocks, 4 wheel disk ABS, overhead console, sliding rear window, keyless entry, dark graphite interior, in dash CD, factory leather wrapped steering wheel, FORD bedliner, FORD black tubular cab steps, K&N air filter, mar-hyde rubberized undercoating, Modine climate filtration system, Bugflector II, Mobil 1 oil, build 7/2000
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Member
Joined: Feb 2001
Posts: 20
Likes: 0
From: torrance,ca,usa
they are always gonna feed us b.s.....
doesn't mean we gotta eat it. if i had only 300 miles on my truck and there was something noticeably wrong, i'd return for a new one....that's it....no other options.
my truck has been smooth from day one.....
although i noticed that after a full throttle blast...it smooths out...but for the most part it's never rough.
could it be the oxygenated gas in the cold climes?
doesn't mean we gotta eat it. if i had only 300 miles on my truck and there was something noticeably wrong, i'd return for a new one....that's it....no other options.
my truck has been smooth from day one.....
although i noticed that after a full throttle blast...it smooths out...but for the most part it's never rough.
could it be the oxygenated gas in the cold climes?