Engine Vibrations
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Engine Vibrations
Hi,
I have a 2004 5.4 F250. I have vibrations coming from the engine at 50mph at around 1200rpms while it seems like the truck is in 5th gear. Only vibrats when i excelerate slowly as soon as i let off the gas or the tranny shifts down all vibrations gone. I have a lift kit on the truck but it would vibrate the same before the lift went on. Any help or hints would be great! Thanks
Zachbing
I have a 2004 5.4 F250. I have vibrations coming from the engine at 50mph at around 1200rpms while it seems like the truck is in 5th gear. Only vibrats when i excelerate slowly as soon as i let off the gas or the tranny shifts down all vibrations gone. I have a lift kit on the truck but it would vibrate the same before the lift went on. Any help or hints would be great! Thanks
Zachbing
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From: ct
gee wiz i would hate to hear you had a broken motor mount B4 you put the lift on w/ a '04!!!
but yea, senix is right.
did you change yer tires since you put the lift on?
my guess is its prolly not so much the engine as it may be a front end issue or a misweighted offbalanced tire/ allignment issue.
but yea, senix is right.
did you change yer tires since you put the lift on?
my guess is its prolly not so much the engine as it may be a front end issue or a misweighted offbalanced tire/ allignment issue.
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Like i said it was vibrating the same way with the stock 265's and it does the same thing with the new 35's. I tires came mounted and balanced and i had the wheel alligned after i put the lift on. What kind of trouble and money are we talking if it is the motor mounts and how do i check and inspect?
Thanks for the help guys!
Thanks for the help guys!
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From: Frederick, MD
Try from below and from the engine compartment. Engine mounts to the frame, a visual inspection is a start. You then can start the truck with it in park rev up the motor from under the hood and see if the motor is moving excessively, that can help to pin-point that issue as maybe a cause.
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Hey all, thought I'd contribute.
I have a 2002 F250 5.4L and it has I believe the same problem. When I am cruising at ~1500 RPM the engine/trans seem to shake and the truck won't accelerate unless I push the pedal enough to get the trans to kick down a gear. If I try to accelerate from that ~1500 RPM spot the truck will not, it just shakes. Now, it only does this in gear, not neutral and it doesn't matter how fast I am going.
Maybe this is the same problem as the OP.
Could it be a torque converter problem? Doesn't seem like a broken engine mount would limit acceleration.
I have a 2002 F250 5.4L and it has I believe the same problem. When I am cruising at ~1500 RPM the engine/trans seem to shake and the truck won't accelerate unless I push the pedal enough to get the trans to kick down a gear. If I try to accelerate from that ~1500 RPM spot the truck will not, it just shakes. Now, it only does this in gear, not neutral and it doesn't matter how fast I am going.
Maybe this is the same problem as the OP.
Could it be a torque converter problem? Doesn't seem like a broken engine mount would limit acceleration.
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I am not seeing anything wrong with the mounts what is this about the torque converter?
Thanks Zach
Thanks Zach
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Elder User
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I'm not sure, but for me, I really only get the vibrations/shaking when the truck is in 4th gear (I belive) because it does not do it if overdrive is off.
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Elder User
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Ok. I don't have alot of experience with anything other than carburated engines, but isn't there an individual ignition coil for each cylinder? I know my father's 1999 E250 with a 5.4L uses this. A friend also recommended I look into the knock sensor?