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Showing results for tags 'shudder'.
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I have a 2002 Forester 5 speed AWD. When accelerating from a dead stop, letting out the clutch pedal, it frequently shakes the car like it is possessed by demons. I combat this by revving the motor a bit and/or double clutching. It does not do it once the car is moving. Also, it does not occur when the car is cold and gets noticeably worse after it has been driven awhile, fairly consistent then but still somewhat intermittent. Once the car is moving there is no sign of it, even accelerating heavily in upper gears. No bearing noise. Clutch was recently professionally replaced. Crawled under the car to check u-joints and drive line coupler. Only thing I could find was the rubber mount in the center driveshaft bearing coupler had a little play when I tried to twist it (very little but enough to see). The shaking feels like it starts in the tranny area but quickly transfers to the back/differential area. Any ideas what is causing this and how to fix it? Thanks, Joe -
I have a 2001 Subaru Legacy Outback with 170,000 miles that is having violent shuddering problems when braking and a barely noticeable shudder when at speeds above 55-60 mph. A mechanic friend said that the R&P was broke (it was, very badly) and that the reason I only felt the shudder when braking was due to the R&P violently moving when the pads were pressing on the rotor. I replaced the R&P, both outer tie rods ends, and steering pump back in July 2016. I also recently had the transmission and axles drained and refilled in August 2016. The axles were put on December 2015. (I should mention that the R&P was an absolute Son of a Biscuit and after 2 alignments from Free Service (who I will never use again), the steering wheel is not exactly aligned.) After the fix in July, the shudder is much, much, MUCH better but it is still there. I am thinking that I need to replace the rotors and pads, but the previous dealer replaced both sets of rotors and pads less than a year ago. I am not sure if driving and braking on a basically severed R&P would cause the rotors and pads to warp between October 2015 and July 2016. But the dealer is also a crook, so they rotors and pads could have not been new. The shudder when braking is mostly in the steering wheel (which shakes pretty bad), but sometimes I can feel it in the seat. My passengers say they do not feel the shudder at all. The shudder lessens as the vehicle slows and it is very rhythmic when you are almost stopped. This leads me to think that the rotors and pads are warped. But could it be the wheel hubs? Any suggestions? -
My car normally rumbles all the time, like a fast swaying feeling. It's not a noise, it's what I feel when I'm sitting inside. It is fine when I drive. It's usually fine when I stop. It normally idles at about 800 - 900 rpm's, sometimes 500 rpm's. Recently it's been doing it worse, but chooses when to. Today it was fine. It seems like letting it sit without driving makes it occur, say 1-2 days. It lasted for at least half of my drive if not more. I went to O'Reilley's and the guy there was stumped more than me. It almost felt like it was misfiring a few days ago, like one of the cylinders wasn't turning fully and that the ratio was off. It scared me when the rpm's went all the way down to the first white line, very low, and it was swaying a lot more than I'm used to. It got worse if I accelerated in neutral; it would come down and low-rev shake more. It made me feel like it had 6 months or so until that shaking turns into an engine that just stops running out of no where. Ideas: Throttle wire tension not to spec, Spark plugs, vacuum leak, EGR, timing. Note: MPG Perfect I checked the MPG twice in a row. It's still 27 mpg (Perfect, to spec). In fact it's 27.09 MPG going 80 MPH - 90 MPH, and 27.11 MPG going 75 MPH. I use 89 sometimes, but mostly 91. (92 requirement). I never use 87 and never will. Note: No Check Engine Light Any other 6 cylinder subaru owners with similar problems? 2002 Subaru Outback H6 3.0 VDC Sedan - Engine: EZ30D If you can give me some help in narrowing down the issue I would appreciate it greatly. Thank you!