My car is making a loud deceleration noise evertime I let off of the accelerator. It appears the RPMS are not adjusting. Could this be my transmission, timing or something else?
View 9 RepliesIt seems to me my Prius 2007 decelerates noticeably when I take my foot off the accelerator. It's noticeable but not even near the level of the engine braking in B mode. The change seems to have happened since my last service but the I won't swear to it, and the dealer says there hasn't been a software change.
View 4 RepliesI have a 2006 Rav4 and every time I drive my car after it's been sitting for a while there is a very loud noise coming from the rear of the car, the noise usually lasts about 10 to 20 seconds and only happens when I press on the accelerator, and is always when I go forward, never in reverse. The noise is usually louder when it is humid or it is raining.
View 1 RepliesMy wife was driving our 2 young kids on the highway and the accelerator was making a loud clacking noise and then there was no response when pressing the accelerator. She managed to get to the shoulder. Mechanic says the engine is totally cooked (long block replacement). Only 32K miles and all scheduled maintenance done.
View 7 RepliesI have a 2002 Honda CRV-LX with over 200,000 miles. I'm experiencing a loud hum and vibration between 40 and 50 mph on acceleration and deceleration. It occurs when I'm driving straight or turning left, but goes away when I turn right.
View 1 RepliesThe car: 2012 Tiguan SE 4mo (auto)
The noise: there is a loud pop/cluck/knock from the front drivers side footwell, can sometimes be felt in the pedals
When it occurs: Most frequently it occurs on deceleration. Letting off the gas, there is a slight delay then the noise. It doesn't happen every time. The intensity of it is very sporadic and unpredictable. In stop and go traffic, it is typically the worst, gently accelerate, let off the gas, loud clunk. During other normal driving, accelerate up to normal (55mph) speed, let off gas, quieter clunk, intermittent. Infrequently it makes the noise when I shift into reverse. I can also hear it faintly when i start the car sometimes.
There seems to be very little correlation to vehicle speed and the noise. It is typically louder at low.
My check engine light came on today and my fan has been running pretty loud for the last couple of days. Also when I start hitting the gas under 1500 rpm there is a little rattle that I can here but it goes away around 1500 rpms and you can also hear it if you let of the gas and let the rpms go down then hit the gas again pretty hard?? It is a 2000 lincoln ls with the v8 around 110k, and i have had numerous problems with it. About 6 months ago i replace about 5,000$ worth of parts including, head gaskets, coolant clutch pump, power steering pump, timing chains or belts, and other things because I was having overheating problems.
View 3 RepliesI bought a 2004 F250 super duty 4x4 with the 6.0 a couple weeks ago and have a few questions. Hopefully all of these things are normal, but I thought I would ask you experienced drivers.
1) Occasionally while driving when I lift off the accelerator pedal I can hear a sort of loud rattle under the hood. I assume this is the turbo shutting down? Is that normal?
2) 4x4 and locking hubs... I have the 4x4 hi and low switch on the dash. Do I need to also manually lock the hubs to go into 4x4? After reading the manual it seems like I can just turn the dash switch and they should automatically lock, but I'm not sure. The hubs are not marked, but going by the pictures in the manual I think I know which is "lock" and which position is "auto" or off.
3) Front wheels hop at full turn. I expected wheel hop in 4x4 or with the hubs locked, but even in 2WD with the hubs in the auto position the tires still "hop" or knock a bit at sharp turns. Is this normal?
My son's explorer, 4.0 automatic, developed a problem during a 90 mile trip on the freeway. Driving along at 75 MPH with the cruise set everything seems fine. As soon as he lets of the accelorator the engine drops to idle speed and a noise comes from under the truck that sounds like an old siren, starts low pitch and gets higher and higher. The noise stops when he touches the accelerator applying power to the drive train. The transmission shifts and pulls fine, no slippage. He said that for a while the 4WD light on the dash has been flashing six flashes, pause, six flashes.....a steady code.
View 5 RepliesGetting backfire or popping noise after deceleration with our cars. It didn't do it before with oem exhaust, just wondering if we're going to get a little bit from my new joe z exhaust, or do I have a leak somewhere with my installation. Or do I just need it break in a little more. How do I check for leaks , Do I just need to ramp the car and check all the flanges for where the exhausts bolts up and check for alignment issues.
View 14 RepliesOk - I admit, I don't have a good description of what's going on, but it's not normal. When I accelerate slowly, or go up a hill, I'm hearing a "rattling" sort of noise that did not used to be there. I have heard it also when slowly decelerating.
I need to crawl under and look, but my big concern is I'm about to go on a 2000 mile trip with a small horse trailer. Could this be a festering major engine, transmission, or otherwise problem?
While switching freeways yesterday and shifting down into 3rd before hitting the exit ramp I heard I a slight clunk, and then this continual noise began. I initially wasn't quite sure if it was my car or the sound of the of the large semi engine braking in front of me so I continued on to the freeway and was able to shift back up to 5th and get to speed.
However, I held back to around 60Mph because the noise started to worry me as I continued to hear it after passing the 18 wheeler semi. I got off at the next exit and noticed that the noise ONLY occurs when the car is decelerating. It happens in every gear as well as neutral; having the clutch in or out doesn't make a difference either.
*When accelerating in any gear, even the slightest bit, the noise disappears.
I've scavenged the forums to find a similar issue but to no avail.
I've uploaded a video that shows the issue occurring. The video is taken from the driver's side wheel, but the sound resonates throughout the front of the car, can't really pinpoint where though.
2002 Jetta 1.8t possible transmission noise
[URL] ....
2002 Jetta 1.8t ... 210k Miles
I've recently replaced the Control arms, outer tie rod ends, ball joints, springs, struts, all for rotors/pads, rear calipers, handbrake cables, timing belt (with pulley kit) water pump, etc. full syn Oil changes every 3k-3.5k miles, Premium petrol only.
So, I have Stoptech rotors and brakes, and it squeals when (a) it's warm after a few minutes of driving and (2) only when I initiate braking softly to slow down, but disappears after braking firmly to stop. Brake pads have about 80% left on them.
View 4 RepliesOn deceleration with the brakes (not coast to slow) I get a growling. Sometimes a bit worse than others. Seems to get worse coming up to about 20mph from speed. No other time. I was thinking front wheel bearings as the load up from deceleration. But I just jacked it up and could not find anything that felt or sounded wrong. No play or grind or "bad" feelings in either of the fronts. Front end recently rebuilt, new tires too.
View 9 RepliesI have just changed my transmission because the old one failed me and i notice that it makes a buzzing noise. It only makes this noise while in drive or reverse but when parked the noise goes away. My car runs perfectly normal but doesn't seem to "sound" as if it did. Its a 2000 lincoln ls. V8 4d sedan....
View 7 RepliesWhen driving my 2003 Volvo XC70, it sounds as if I am driving on nobby mud tires. The sound (rrrrrrrrrrrr) gets faster and slower with the cars acceleration and deceleration. I know that the sound isn't caused by the tires because I am running on Micheline Harmony tires which are fairly quite. I am concerned that it may be a gear going bad.
View 5 Replies02J-EGT 5spd. OEM axles.
Sounds like it's coming from the front. I noticed a few months ago my inner passenger CV boot was cracked, put motor mount spacers in which should have hopefully brought that axle up to okay standards. My initial reaction is to say the howling is from that CV joint however it's very odd it only happens after 35 and when I'm not heavy accelerating or deaccelerating- only when holding the car at a constant speed.
This also came after doing the TDI 5th. I notice it a little bit after passing 35mph in 3rd but really can hear it in 4th/5th when the engine revs drop. Am I right in thinking CV boot? Or transmission internal?
My daughter has a 2010 Elantra 4-dr 74k
In the last few days, a new sound has appeared. It is hard to describe, sometimes squeaky, sometimes sound like a vacuum leak or air bypass.
It seems to steering related in conjunction with acceleration/deceleration. It only occurs when the wheel is being turned to the left, whether for a left turn or returning to center from a right turn. The noise seems to come from the center/center left of the firewall area.
It only does this while in motion, I couldn't replicate the issue with the car running but in Park.
I turn my car on. I have no error lights on my dash. The heater and AC control unit lights up. I press the down arrow on my in-dash heater/AC control unit so I can get some cold air. I hear a hissing sound for about 2 seconds, but no air comes through the vents.
I get the same effect when trying to use the heater. Quick hissing sound, no air through vents.
Both stopped pushing air at the same time (when my ac stopped working, I tried to put out heat just to check)
I have checked al the fuses under my steering wheel and in the engine compartment using a circuit tester (w/light).
There is an AC Clutch relay fuse in the engine fuse box. Not sure if I should check that.
I own a 2000 Lincoln Continental and the other day it started making a horrible grinding/rubbing noise as soon as the engine started. I took it to my mechanic (been going to him for 6 years) and he said it was the Air Conditioner Compressor (specifically the clutch) was causing the noise and needed to be replaced.
If I remember correctly (I do not have any kind of documentation in front of me), the AC unit is at the bottom of the engine... Which could cause some issues. My question is, how easy/difficult is this to fix myself?
2006, 112k mi. there's been a whine-like noise that only happens when the accelerator is pressed ( and mostly noticed at highway speeds) and stops immediately when accelerator is released..
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