Lexus GX 2004-09 :: Shaking Steering Wheel And Pulsing Brake Pedal At Speeds Above 55mph
Aug 4, 2014
I bought 09 GX-470 4K miles ago..has 50K on it. Ran perfect when we bought it. wife said it started doing it 1 week later. I drove it and felt like warped rotors to me. replaced front rotors and pads with cheap wearever brand...I Know...I was sort of trouble shooting..did nothing ...did the back rotors and pads and seemed to fix it..did proper bed-in of new parts but, never checked at speeds above 55mph. recent trip got us up to speeds above 55... at these faster speeds when brakes are applied we get a nasty wheel wobble and a pulsing pedal...braking below 55 it feels fine.. thought's ?? last car was a 4runner which has the the same rotors and pads and never had a problem...could it be ABS ?? should I go with new oem rotors and pads ?
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My GX470 steering wheel shakes/vibrates when I hit speeds over 50mph. What is causing it?
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This summer, my steering rack failed, and I had it replaced with a remanufacutured steering rack. All went well, until a few weeks ago I started feeling a pulsing effect when turning, usually when turning right. On a few occasions, the shaking has become severe. It is a back-and-forth effect, about three times a second. It is bad enough that it has triggered a power steering error on two occasions. I took it to the garage who installed the rack, asking them to have a look at it, and they found nothing. Because the effect is regular, I am assuming that I am feeling the 12V power assist malfunctioning or reacting to faulty input.
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At low speed braking or before it comes to a full stop. I'm guessing the ABS but would like a 2nd opinion from others. If it's the ABS, is the fix something that can be done DIY?
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So today I took the gx470 on the highway and once is approached 70mph i noticed the steering wheel shaking... never before have i noticed this but today it happened i guess sporadically... just the steering wheel and nothing else... is this just the alignment? bad road? excessive speed? funky... lmk
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I had a problem with my steering wheel shaking at various speeds. Eventually I found a bad inner tie rod and replaced it. The shaking is gone, but whenever I get over 70 mph there is still a very small vibration. I had all 4 wheels aligned after changing the tie rod. Tires are brand new, less than a week old. The mechanic checked my ball joints while doing the alignment and said they were good. Could my struts be causing the vibration? They need replaced, not sure if the previous owner ever replaced them and the car has 225,000 miles.
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I'm getting some vibration and steering wheel shake with my '04 GX... I have a 2004 GX with the differential dynamic damper installed. About 55-60mph it starts, and shakes the steering wheel back and forth. Sometimes it's completely smooth, but on other road surfaces it shakes. On full "comfort mode," the shake is much worse, but on Sport mode it dampens the shake to about 10% intensity, but it's sometimes still there. This is not bump steer, by the way.
So far, I've done:
-Brakes
-Alignment
-Front hubs
-2x wheel balancing with 2 different sets of wheels/tires
-lubed the drive shaft and prop shaft to fix the clunk (Clunk TSB has not been done)
-changed the power steering fluid
-checked all control arm bushings, ball joints, tie rod ends, and sway bar bushings. All are solid.
I recently jacked up the front end and moved the wheels back and forth by hand. It seems like there is some looseness coming front the inner tie rods. However, I pushed and pulled and can't get a clunk or anything. I think it's coming from inside the steering gearbox. My VIN says it's before ST002-05, so that TSB aka "Steering Flutter" would apply, if it is that.
After 104k, are the front shocks due for a change? It does seem to nose-dive a bit on braking, but the shocks aren't leaking or anything. Would worn shocks cause steering wheel flutter on these trucks?
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Lately my 2007 GX470's steering wheel has a shaking/vibrating problem whenever I apply the brake at speed above 50 mph or so. Without braking or with braking at slower speed, there is no problem at all -- everything is glass smooth.
1. I assume the front brake rotor is warped?
2. Will I need to change the rotor or is there a way to fix the warp (it that's the problem) without changing the rotor?
3. Approximate part & labor cost?
I plan to bring to dealer for a check up but would like to know ahead of time what to expect.
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700 miles ago I got new brake pads on all 4 wheels and new rotors on the rear wheels. 700 miles later the steering wheel still shakes when braking at above 60mph speeds. Also there is still a squeak sound coming when braking. Do I need to give the new brakes and rotors more time to adjust or were they installed wrong?
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My wife just purchased an 04 w/27k miles in superb condition two months ago. This is a California car that had no mountain or winter weather service.
We live in Colorado & do a lot of mountain driving. At speeds above 65mph going down hill the steering wheel slightly vibrates or shimmies under heavy braking. The car is always heavily loaded.
Original brakes w/ well over 50% lining. I have not put a dial indicator on the disc surfaces.
CV joint boots are tight & no grease leakage.
Tires are wearing perfectly, so I do not think it is an alignment issue.
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I have an 04 6.0 psd and if I am stopped in drive with the brake pedal down I can't turn my steering wheel at all. If the truck is in park and my foot off the brake pedal I can turn the steering wheel both ways just fine. When I am driving I don't have any problems with the steering. I have checked the power steering fluid and it is full. This makes it kind of hard when I am trying to pull in and out of parking spots. What could be causing this and what the solution would be to fix it?
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My Ford F250 XLT (HD) 2 wheel drive has recently developed a shimmy; a shaking of the steering wheel that usually occurs at medium speeds, and seems worse when going around a curve. But since it doesn't seem safe to drive, I dropped by a local shop for a diagnosis. Their thought was that I had a caliper sticking, since it pulled to the left when they test drove it and applied the brakes, and maybe rotors since the vibration indicated warped rotors. Since I hadn't mentioned shaking during braking, I paid the diagnostic and moved on.
Upon leaving, the shaking started up again going around the first curve, at about 35-40 mph. Shortly after that I took it to a dry, flat, unbusy stretch of road, and applied the brakes at about 60 mph, and brought it to a stop in it's lane with my hands off the wheel; no pull either way. Now I have it up on stands, and have visually and physically checked the parts I know and recognize, i.e., ball joints, tie rods, wheel bearings, etc. I don't know how to inspect gear box, or steering shaft issues, but steering wheel play is minimal.
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I have noticed a randomized clicking sound coming from under my steering wheel around the pedal area. It sounds electrical, not mechanical.
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I bought a new 2010 (Gen III) Prius IV one week ago. I have driven it less than 200 miles. Last night, I experienced a few seconds of steering wheel shaking while driving at highways speeds. I assumed I had hit uneven pavement. At no point was it difficult to turn the wheel. But after the shaking, the car seemed to sometimes drift to one or the other edge of the lane. I chalked that up to unfamiliarity with the car and to rain and darkness. Today, I read Forum posts that described the lighter touch that usually works and the importance of wheel alignment.
After the shaking, another 45 minutes of driving, and a half hour parked, I headed home on a slower road. That is when my wife noticed that the Electric Power Steering warning light was on. We are both pretty sure it was off before that. This morning, I pulled out of the garage and back in, and turned the wheel both ways as it moved. The light did not come on.
I called the dealer to discuss what had occurred. I made a service appointment for Monday so they can check it out. Someone in a Gen II forum (where I mistakenly posted this at first) advised me to pull over and take an evidence photo of the light if it comes on again.
The PS warning light wouldn't be too surprising to see in a Prius driven tens of thousands of miles. If yours ever came on when your Prius had low mileage, I'd be curious to know the outcome. I misidentified a benign icon as the EPS warning light.
The mechanic became suspicious when he couldn't find any code or any trouble. We sketched the icon we remembered seeing for the service supervisor. He explained that it was the cruise control light. I either forgot I had turned cc on or I had pushed it accidentally when I operated the wipers.
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Just rotated my tires this weekend and noticed today that the steering wheel has a vibration in it at highway speeds, 65-70mph. It did not do this at all before I rotated the tires, why it's doing it now? Tires are fairly new and Bridgestones H/Ts.
I know my rotors are warped and need replaced but the vibration I'm referring to is when I am not braking.
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I just purchased a 2008 Toyota Yaris. The car is excellent with only one exception. When above 55mph, I hear a pulsing noise - a constant evenly spaced noise similar to an engine that is lightly revving on and off. If I take my foot off the gas, it goes away. Press again while I'm above 55mph, and it pulses again. I have no loss of acceleration, no bucking, and the rpm gauge is steady as she goes. It is an automatic. No noises or anything under 55mph. I'm perplexed.
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I swapped my fluid and ever since I did that my clutch and brake pedal are pulsing/vibrating only when I start the car. It almost feels like ABS pulsing but on both pedals and the car is obviously stationary.
I followed the procedure from the manual and did all 4 corners and slave.
Brakes work fine/clutch is fine...
I must have done something to upset the BRAKE system?
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2004 Saturn Vue, V6 AWD with 138K miles. In the last 8 months I have had the struts rebuilt, all brake components replaced (everything), front axles replaced, anti-sway bar bushings replaced, front end alignment, replaced wheels and tires and front wheel bearings, replaced two broken motor mounts, removed defective main drive shaft, all to eliminate the vibration that begins at speeds approaching highway speeds.
The problem has not gone away but is much improved with the new axles and motor mounts. Sheering shaft was replaced 7 years ago.
The GM dealer refuses to look at it until I replace the drive shaft, which the car doesn't need to drive.
I have had it to suspension specialists and a dozen mechanics and we are all at a loss.
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The brake pedal on my Golf 4 GTI 132KW pulsates when I put my foot on the pedal going over uneven terrain without pushing the pedal in.
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I had a balancing problem with some tires I bought with the car. At about 80 they shook and hard enough to not want to drive at that speed. I replaced them with Falken tires and it was so much better, but......
At 75-82 mph I still have a shake in the steering wheel. I bought the tires from Discount and they claim the rim is bent and they cannot completely balance the tire. I am going back once more to get a definitive response.
I am at a loss at what to do next. My other Lexus was smooth at any speed, even at 90. Smooth. 2007 Lexus es350
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I have my Toyota 2000 4 Runners having a slightly problem. When I paddle the brake at the Stop or traffic light, the wheel turns (mostly anti-clockwise) a little bit like 10 to 20 degrees. It doesn't turn all the time but especailly when the car is going slightly downhill such as when I paddle the brake and stop from parking lot onto the main road. The road is a little dip down or sometimes in front of the traffic light and it was slightly inclined. I don't know if this normal or not.
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