Prius (Gen 3) :: 2010 - Grinding Noise When Regen Braking
The topic is as much as I can say to what my car's problem is.
2010 Prius II with 50k miles now.
Prius (2010-12) :: No Regen Braking While HV Battery Overheats?
I had my scangauge installed at the end of Oct 2014 so I haven't had the chance to use it in the summer. I have also done the the Intelligent Power Module (IPM) recall about 2 months ago. I have never noticed this issue before the hot weather.
When the weather gets hot, the regen gradually lowers the recovery amp. Normally it can regen at over -90 amps. As weather gets hot, it limits the regen to about -65 amps max. When it gets hotter, the regen lowers down to -35 amps max. I can feel the car not slowing down as quick as at -90 plus amps. When the car has been sitting under the 100f+ for a couple of hours, regen is completely at idle (less than -20Amps.) Mechanical brakes take over. The car feels the same as -30amp regen, HSI shows it is regen braking. However, scangauge shows idle regen (less than -20Amp) and the slowing down is done by mechanical brakes.
Prius (Gen 3) :: HSI (CHG) Bar And Regen / Friction Braking?
Prius III -- I do all in-town driving with display in HSI mode. When braking, I have naively assumed that the length of the CHG bar corresponds with regen braking capacity -- fill the bar and you're starting to add friction brake. So when stopping distances permit, I try to brake gradually enough to keep a bit of space past the end of the CHG bar -- means I'm playing with brake pressure the whole length of a typical freeway exit ramp.
View 7 RepliesPrius (2004-09) :: Ratchet Clank While Lightly Braking With Regen At 8 - 13 Mph
My 2007 with 58k on it started making the sound of a 'ratchet clankety clank' about at 56k while lightly braking with regen around 8-13 mph (slow and quiet enough to hear it best) and while turning slightly or more to the right. If I'm on a hill and can maintain the conditions, the sound will continue.
I've spent many a night searching here and elsewhere, learned a lot about strut and cv noises etc. At 57k I took it to a dealer who has a very nice service dept and they rode with me, agreed that they heard it, checked out the cv by hand (my first suspicion) and said all felt fine, that it was recorded at least (my concern being near 60k, std warranty).
Prius (2004-09) :: Burning Smell On High Current Regen Braking
This morning I noticed a strong burning odor, like burning wax. It only seems to occur on high current regen events (eg coming off the freeway). It also happens to be raining, although I'm not sure if that's part of the issue or just a coincidence.
View 5 RepliesPassat (B6) :: Rough Downshifting When Braking At Higher Speeds Particularly On Inclines
My 2006 3.6 awd has developed a propensity to roughly downshift when braking at higher speeds particularly on inclines. The VW shop cannot replicate the problem, but a tech is driving the car for a few days. What might be the cause of this?
View 8 RepliesFord Excursion :: 2003 - Vibration When Braking In OD At Higher Speeds
2003 7.3 Excursion, 130k, stock suspension with newer bushings, etc.
Vibration when braking at higher speeds - not felt as pulses through brake pedal or shimmy through steering wheel - rather, a "body" vibration. Stops as soon as the TC unlocks. Being a diesel I can't tap the brake to allow it to unlock like on the gasser 4R100's - its locked until it shifts down into 3rd. Turning off OD puts it into 3rd but locks TC (no way to "single out" TC). Only felt when braking in OD (though I haven't tried running up to highway speeds with OD off/trans in 3rd) - braking is completely smooth at all other times/gears/speeds and at all braking force (light, mod, heavy).
Front and rear pads are good with even wear and sufficient material, lugs evenly torqued, tires good/balanced, no sign of a stuck caliper or rotor warping, MM manual hubs unlocked. No driveshaft carrier on the Ex's, just a regular two joint shaft with recent Neapco Gold u-joints, no slip yoke play. Trans filter replaced 4k miles ago, 6 +/- qts DexIII/Merc exchanged when I did the filter, fluid smelt and looked fine. Transfer case fluid changed about 5k miles ago. Factory LSD rear diff not serviced recently but fluid suctioned from fill hole looks acceptable.
I'm afraid that something is going on with torque converter/shudder but I don't get any shudder or slip under acceleration or at any other time and gear shifts are smooth. I know that the 4R100's can be sketchy, especially with 130k, but want to get suggestions before digging into it. I've also got a very slow hydroboost leak/weep but the power steering fluid is properly filled. Steering is smooth and proper, brake pedal movement is normal so I assume there is no air in the lines.
Subaru - B9-tribeca :: Pulsation Happens When Braking And Gets More Severe When Stop From Higher Speeds
I change my own pads as a good lifetime warranty with free replacement from Autozone is great!
But with the Tribeca... I changed the front rotors just like all my other cars over the years.. and now there is pretty severe pulsation when trying to brake... I've checked the rotors and pad replacement twice now and all looks perfect.
I searched this pulsation issue and saw on a Jaquar site that you can ruin the ABS on some cars when you don't drain excess fluid as you push the piston back to install then new thicker pads..
Is this an issue for B9? I don't see it anywhere... I'm ready to bring it in the shop.. the pulsation ONLY happens when braking and gets more severe when stopping from progressively higher speeds...
Elantra XD (2001-06) :: Engine Whirring At Higher Speeds / Vibration When Stopped And Braking
I have two simultaneous problems with my 2005 Elantra (automatic transmission). I don't know if the problems are related or not, or if they are alarming or not.
Background on the car: timing belt and water pump replaced in 2010; four tires new in 2010; oil changes every 5000 km.
The first is that my engine is making this 'whirring' sound when I approach 80km/hr. It's not high-pitched, but more of a droning noise. Having read around the forums, I see that Elantras commonly make funny engine noise, but this is fairly new to my car (145,000 kms) and definitely not there at all when idling or at low, city-street speeds.
Additionally, I have a weird vibrating noise coming from the front left of the car only when I am dead stopped and the brakes are fully depressed. It doesn't make this sound in park, and I don't hear it until the car has come to a complete stop; there is no odd noise while slowing down.
Prius (2010-12) :: Slight Surge Forward When Braking On Uneven Pavement At Low Speeds
I've had my 2010 Prius II for less than a month and am not particularly happy with it. I've experienced a slight surge forward when braking on uneven pavement at low speeds at least 4-5 times in 900 miles. This isn't something I can duplicate on demand. When I took it in to the dealer after the first time and asked if the ABS fix had been made to it, they told me my car wasn't part of the "campaign" (aka recall) because it was manufactured in March and the ABS problem had been solved by then. However, it sounds exactly like the problem people were discussing in Jan/Feb.
Once when I put it in reverse in a parking lot it lurched backward (my foot was on the brake) suddenly -- not far, but it was an alarming sensation. It also has a high pitched, barely audible whine when moving (can't hear it if I put on the radio). The mechanic said that was the normal sound of the battery, but I don't remember it from other cars I test drove. Is it normal?
I'm keeping an eye on the dome lights every time I park because I found them on one night (they'd probably never shut off after I parked the car during daylight hours) -- it could have been that the light was switched to "on" rather than "door," but now I'm paranoid and constantly check to make sure they're off when they're supposed to be, for fear of wearing down that little 12 v battery. Not fun.
Prius (2010-12) :: Loss Of Regen Brakes And Traction Assist
Just letting Gen III drivers know that using an OBDII splitter and two gauges can sometimes cause a loss of regen braking and traction assist accompanied by various yellow lights on the dash. It can be restored by switching the vehicle off, unplug the OBDII splitter and restarting the car. This has happened to me on three seperate occasions.
View 8 RepliesChevrolet - Cobalt :: 2010 - Humming Sound At Higher Speeds
I've got a noise I'm trying to diagnose on our 2010 Cobalt. Thought I'd ask about it here before heading to a mechanic.
When I hit about 35 mph I start to hear a hum sound that we've never heard before (my wife says she can here it at slower speeds, but I can't). The sound gets higher in pitch as the car speed increases. The RPMs don't affect it (i.e. when the car shifts gears, no change in the sound).
If I shift into neutral and take my foot off the gas, the sound doesn't change (except dropping in pitch as I slow down).Seems to be tied entirely to the speed of the car, not related to RPMs, throttle, etc.
Elantra MD (2010-15) :: Sunroof Making Noise At Higher Speeds When Opened
Today was the first day I drove my Elantra on the interstate with the sunroof open. When I was cruising at 65-70mph, I kept hearing a noise that I thought was coming from another car. It sort of sounded like a popping or thumping noise. After a few minutes, I reached my hand up and noticed the sound was coming from the metal bar that rises up a little at the front of the opening when the glass slides back. The wind was vibrating it and making it flap in the wind.
View 2 RepliesPrius (Gen 3) :: Econ Mode At Higher Speeds?
I just bought my new 2010 Prius the day before I went on a 300 mile trip out of state. Dealer showed me the eco mode, which sounded like a good idea to me. Drove on the expressway, about 70 mph, decided lots of power was not necessary and I wanted the best mpg so I put the car in Eco mode. Drove great for about 250 miles, then all of a sudden, I began to lose power. Fortunately, I was nearing a rest park. Pulled in, was there long enough to take care a Rest Park business, started back up and car ran fine. BUT I did not use Eco mode. Question: When should I use this mode and when should I not?
View 11 RepliesPrius (2004-09) :: Noise Like A Roar Or Drone At Higher Speeds
I have a 2007 Prius (now has 220K + miles) I bought used about 2 years ago with 150K miles. I finally got used to the car sounds so this is something new, or rather it's becoming louder and enough for me to question it. The car is still quiet at low speeds but this sounds like something related to how fast the car is rolling, not the engine acceleration. It doesn't sound like it's coming from the wheels. It's a low roar like sound, not high pitched and it sounds like it's coming from under the middle to front of the car as if related to perhaps the drive train. If I am up to 40-50 mph and just rolling (foot off the gas) down a long hill, the sound is there. It gets louder the faster I go. Could it be a transmission sound? I've always had manuals so this is my first automatic transmission car.
View 11 RepliesSanta Fe (CM - 2007-12) :: 2010 - Noise When Braking At Highway Speeds
I have a 2010 Santa Fe AWD, I notice that when I apply the brakes at 100 KM or higher I hear a 'thumping' noise, the noise is hard to describe, thumping is the best I could come up with, the noise goes away once the vehicle is down to 80 KM, why this is?
View 7 RepliesPrius C :: High Speed Whirling Noise When Braking And Now At Speeds Of 42 To 46 MPH
My Prius c has always made a high speed whirling noise when braking but now at speeds of 42 to 46 MPH this high speed whirling noise is there and when you are just coasting have a noisy transmission or is this something I should be getting to the dealer with.
EVCT transmission noise ....
Lexus RX 2010-15 :: Force AWD With Lock Button Until 30 MPH?
I've been looking around at RX350's and learned about the "Lock" button which forces all-wheel-drive until ~30 MPH.
If you exceed 30 MPH, it appears to disable the lock, and go back into "normal AWD" mode, which means FWD most of the time.
I am wondering if there is a way to override the 30 MPH limit, and thus force the RX350 to stay in all-wheel-drive mode all the time?
Camry :: 2010 XLE - Front Map Lights Using Excessive Force
I have a 2010 Camry XLE V6 3.5 with 17,000 miles (around 26.000 km).
When I change the map lights used excessive force and ended up breaking a piece (see the image) and can no longer fit properly in place the cover of the lamp?