I just had my front axels replaced. The Cv's were clicking. That problem was fixed.
Metal clunk at initial acceleration and hard braking (none during steering)...
2001 Hyundai Elantra, with an automatic transmission.
1. I am experiencing a "grinding" sound upon my initial acceleration from park? This only occurs when the car has been sitting for a decent amount of time and the engine is relatively cold. To give you more detail: I start the car, throw it in gear and begin to accelerate. The grinding sounds is almost instant and sounds horrible. It is fairly consistent how long it lasts and generally once the car shifts to 2nd or 3rd it goes away. I do not hear it again until I park, leave the car for a while, then start it up and begin driving again.
2. I am hearing a "tension" like noise, also a little like scraping, when I brake at slow speeds coming from my driver side front wheel. I recently had my brakes replaced so I know its probably not the pads and at the time the rotors looked fine too. It is not a constant noise during the breaking either meaning, I apply the breaks, i hear it for a second, then it goes again, then it comes back, then goes away. Again it sounds like a mix between scrapping metal and tension.
What it could be, what I could look at on my own or how to get it resolved?
So starting yesterday, I noticed that my wife's 2008 Prius with 90 k, started to have a grinding, squealing sound coming from the left front wheel when making a hard right turn. It seems worse when there is more weight in the car (2 people vs 1). It does not seem to go away if the turn in on an incline.
I took off the wheel, checked the brake pads (look great and have at least 10mm of pad on both sides), looked form foreign material within the pads or on the rotor, checked the knuckle joint and just about everything that I could look at looked fine. I didn't see any leaking from the strut (the silver strap at the top was not gold as described in the DIY visual inspection post).
I am going to have to take it in, but I am wondering what are likely causes for this? I cannot tell, but I suspect that the inside guard of the front brake is rubbing on the rotor. Could this mean wheal bearing?
I have had my 2010 Prius 2010 for a year now. I have been taking my Prius to a full service car wash with the conveyor belt. They have always seemed ver Prius savvy. But the last couple of times, after getting in the car and driving away, the car seemed to hesitate upon initial acceleration. Then the problem goes away.
The last time I took it to this car wash, I sat in the car, because I only needed the express exterior wash. About a third of the way through, the instrument panel said "Low Traction Battery... put into Park" I did not obey the warning because I was afraid of putting it in Park while the conveyor belt system was pushing my Prius along. So I ignored it. By the end of the car wash, the engine had shut down. I had to start it up and drive out, and I got that same momentary, initial hesitation as I accelerated, like before. The hesitation went away after that.
Just rejoined this Ford gang after years absence. Used to own "The Muny Pit", a '79 F-150 4WD monster with a '69 429... constantly breaking something. Anyway, where to look on my '08 F-150 XLT 4WD with a 5.4, 83,000 miles. Searched the search bar for my title and found a post on an '00 Expedition describing similar issue than mine... for about 6 months now when I accelerate either from stop or a crawl; forward or reverse; more so when turning, but does do it wheels straight.
Upon initial acceleration I have this horrendous rumble / shudder in the truck, like the grinding metal bearing sound/feeling felt when the pinion bearing went out on my '79 (only felt it seconds before the 9" rear pumpkin exploded). Once rolling it stops. I have checked all wheel bearings.. I have check all the suspension joints... everything looks fine, no obvious issues. The only suspension mod I've done is a 1.5" leveling kit when brand new. On the Expedition two replys suggested changing the transmission/transfer case fluids claiming it cured their vehicles.
2004 Prius.... About a year ago I heard a noise in the driver's side door. It sounded basically like something was scratching against the plastic, but I'd only hear the noise during acceleration/braking, for maybe a half of a second. That was for about a week, but then it went away and I didn't think about it anymore.
Then, a little while ago, I was in an accident where a pedestrian ran into the road in front of me. He hit the driver's side, and there was some damage. Bumper, hood, front light replaced. Suddenly, I'm hearing the noise again, and it's not going away.
Really, what it sounds like to me is as if some piece of something is loose inside the door and moving back and forth whenever I accelerate or break.
Honda Accord 2005 ... Just bought a new used car. All seems ok, but I have two problems.
(1) when not moving, i have slop in the steering and I can hear metal on metal contact when I turn the steering wheel. I pulled the tire and with basically no force I can move the rotor back and forth by hand. what it is and how to fix it?
(2) when braking, it appears that the front left pad sticks. Pads are not excessively worn down. Can't figure out how to get to the caliper pins ( thought they might be sticking).
Could the two be related?
Got an odd clunk, feels like rear off throttle from hard acceleration. Feels like diff bushings might be worn. Looking for some info about diff bushings and how they feel. Also found the front prop shaft coupler looks like its seen much better days so ill be replacing that.
View 8 RepliesMy 2007 Prius brakes extremely hard at low speed (while I am applying the same amount of pressure). While decelerating, I let the regen braking do most of the work until I get to about 10mph, then I press the brake so I will have equal pressure until I stop. When I get to about 5mph I feel almost a lunge where the brakes aren't working as hard and then the brakes take hold extremely hard. My prius has been doing this for awhile not depending on the weather, but I finally noticed it worse than normal yesterday when it was raining and my car braked hard and actually skid and the traction control light came on.
View 19 RepliesOver the last 2 weeks I've begun to hear what sounds like a metal on metal clunk from my suspension. I even think I can feel it. It only happens when I'm pressing the gas down or stopping and it is usually just one clunk but recently the clunk has gotten worse up front where it may clunk 2 or 3 times while braking. It happens right when I press the gas down from a dead stop and right as I'm about come to a complete stop. Both the front axles have been replaced so I know it's not that also because it doesn't make the clicking sound at all, just a clunk sound.
View 6 RepliesI've read a few posts about the Prius braking system. Just wondering what other owners have done when they experience the metal grinding noise and when brakes need to be replaced. My car has around 67,000 miles. I was planning to take it to a Toyota dealer, although prefer to find a certified Prius or hybrid mechanic at an independent shop.
View 3 RepliesI've had it happen a few times over the past few years (07 Pri) that when I have to brake really hard, the front lower dash 12V lighter outlet fuse blows. Seemed odd at the time but when I replaced the fuse and everything came back to life I kind of forgot about it.
Today we had a crazy idiot try the mad dash across 4 lanes of traffic and that of course made all cars slam on their brakes. Wouldn't say it was a ABS type slam but certainly hard braking.
Anyway, I heard the chime of a 12V device powering off and a bit later we noticed the MFD, radio, and clock were all off. Probably everything cut out at the same time but obviously attention was on the traffic not the electronics.
I saw some people mention that is the ACC fuse which I'm about to go and check on, but what is causing this. Just seems odd that hard braking causes such electrical issues. Wouldn't think there would be an overlap in systems but maybe?
I have a 2007 Prius with ~180000, which runs great. The mechanic shop I used for oil change suggest me to change spark plug because they are dirty. After the change, I found I cannot step on the gas pedal too hard for acceleration. The car will hesitate, choking or die if I try to accelerate too fast. But if I step on the gas pedal gently, and let it reach the desired speed in a slower way, it has no issue. I went back to the shop and they replaced with another set of 4 plugs, and no improvement. I checked air intake tube and it looks no leak, but really old. Other than that, the car runs great.
View 19 RepliesI was having some issues with rattling sounds from my brand new (less than 100 miles) Prius C2--see my thread here.
View 9 RepliesMy 2007 GX470 is making a clunk/thud noise when braking (more often when braking hard or on a downhill slope) and then again when I let off the brakes and start to accelerate. It is significant enough that I can feel the car jerk some when it happens, almost as if someone has tapped the back with their car. What it could be?
View 2 RepliesI've dreaded the day I would receive the Red Triangle. It occurred upon initial start up this morning.Could this be brake system related as 3 weeks ago I got my front brakepads/ rotors replaced. Since then the front brakes have been grabbing to the point that my wife will ask me about the noise when she's in my car.
The hybrid battery indicator is always many blue bars and green with no wild flucuations. I'm getting between 48-51 mpg's. For general maintenance I installed the Optima Yellow top about 4 weeks ago. Oil is full, coolant inverter reservoir is full with tuburlant motion and was replaced under recall 2 years ago. The transaxle fluid was changed 20k miles ago.
So back to the brakes. I have the Red Triangle with !, VSC.
2008 Prius, 184K. Well maintained, 85% highway miles
In my 2004 Comp G I have an extremely loud clunk when braking. The braking clunk does not happen all the time. There is a clunk while having the car in reverse and power braking it. While holding down the brake and revving hard and fast it make the loud clunk every time. It will not do it all the time in drive though. I can not pin point which side it is coming from. It sounds as if it is mostly the right. It almost sounds as if it is coming from inside the trans near the pan area?
I have replaced the lower control arms, sway bar bushings, stab links, struts & mounts, I have solid engine and trans and top mounts, new inner and outer tie rods, all wheel bearings, etc.... (not for this issue, just for performance/wear).
I am torn between thinking it is a cv axle or internal drive train noise.
I have a 1998 C1500 Silverado, with the 4.3 vortec engine, with 88k miles.
Upon initial acceleration the truck stumbles, sometimes even dies when taking off. I have had the codes read, and have gotten a P0102 and a P0404. I have swapped the MAF and EGR Valve out with a known good ones from the parts store; cleaned the throttle body; looked for vacuum lines that could be the problem but can't find anything.
I have even changed out the fuel filter since the engine sounds like it is starving.
Also, the transmission doesn't want to shift unless I let up on the acceleration pedal. I can get up to about 55 MPH and the RPMs sky rocket before it shifts, and the engine begins to ping before shifting.
Bought my first Hyundai, a 2013 Accent last Saturday. Love almost everything about the vehicle.
It is equipped with the EcoBoost which I can turn on and off.
Noticing when I accelerate almost every time there is some initial acceleration and then a noticeable power loss. It's much worse when I'm accelerating through a turn.
Honestly it's hard to tell too much of a difference with the EcoBoost and AC off.
Also noticing the car really surges at times with the cruise control on. Obviously if I hit an incline it's going to boost a bit, but sometimes even on very minor inclines or straightaways the RPMS just fluctuate more than they seem to need to.
Wondering if this is normal for this engine and something I need to get used to. Coming from a Honda Civic I didn't experience this consistent power loss / fluctuation.
This noise sound as if an electric motor going off for a second only. It almost sounds as a CD changer changing cds but for a second only.
What is weird is that it only sounds when the car has been off, turn it on and I start accelerating to about 8-10mph. If I come to a complete stop at a stop light and accelerate again it will not sound. If i come to complete stop and put the car in park or N, it will not sound. You will only hear it on the first take off when the car has been off.
I would also like to point that I have manually shifted and this does not change a thing. The noise still comes on around 8-10mph even if I keep it in 1st gear.
Furthermore, I would also like to point out that the noise is is not loud. Chances are I will not hear if I have radio on at low levels or the A/C fan in mid to high.
Again, the sounds seems to come from the outside the cab and it sounds like an electric motor going off for about one second only.
The car is a 2012 l4 with about 60k miles on the odo.
I was just curious what the best way to increase initial acceleration from a dead stop is for a 2009 F- 150 XLT with a 5.4 V-8.
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