when the car has been driving for at least 20-30mins and you come to a stop (either lights or parking lot) as you release the brake pedal the rear knocks. it will also do this sometimes as you apply the brake and shifting from neutral to drive or reverse.
View 2 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.
I have a 2003 passat. I have noticed, and its getting gradually worse, a knock that comes from the dash. I get one knock when I go round a corner and then a similar knock when I go round an opposite corner. Its as if something is rocking from side to side.
It sounds like its coming from behind the dash just off center to the left. Perhaps behind the passenger airbag? Its difficult to tell exactly.
I recently bought a 2007 Passat 3.6 and am now noticing an odd sound from the motor. When I am at parking lot speed, just barely giving it gas (1000 RPM or so) I can hear a dull, almost rhythmic knock coming from the motor. It's similar to an exhaust "lub-dub" sound, but not. I brought it to the dealer under it's bumper to bumper warranty and they told me that it is a normal sound for the vehicle "in this configuration". Is this really normal?? I'm worried that it isn't, and just about the time I'm out of warranty it'll be a big deal. The car has 32K on it and the engine has 20K. Yep...it blew and was completely replaced at 11K.
View 2 RepliesAfter my coilover install there is a small knock coming from both sides in the front that wasn't there before..sounds and acts like a swaybar link but they don't have play and I replaced them and the noise is still there. I also reused the the shock tops?
View 4 RepliesSo every time I let off the gas pedal I get this knock coming from the front of the car.
No codes, I scanned it
mods -
stage 1 software
intake
downpipe
HPFP
bought my car in 2008 with 19k already on it certified used. fast forward to 2012 and 102,000 miles on it engine has a knock coming from the engine block. I purchased a warranty 7/100,000 mile. Did oil changes myself every 5k full synthetic. when the car developed a knock i noticed the engine oil was scary low. Since i got my car from the time i got it at 19k and i bought the 7/100,000 mile warranty on top of that.
View 3 RepliesSo this just started happening last night and I haven't had time yet to get the car in a rack. There is now a fairly loud knock (changes frequency with speed) coming from under my right foot while coasting in gear. It does not affect steering, braking, handling (from what I can tell), or acceleration. The knock it not there while coasting in neutral. My concern is that it may be a mount that is loose.
View 4 RepliesI bought a 2002 W8 92k Miles from a dealer for a very cheap price, KBB 9k, i paid 2k because there was a engine knock *gasp* i know. The body/interior is in good shape. From what I was told the noise was coming from the 'upper' part of the engine..I was hoping it was probably a bad lifter, not a big problem. So the car was trucked to me yesterday, it drives fine still but the engine noise was more severe than i thought. I'm 95% sure it's a spun rod bearing. I'm stressing .
I own a 2 ton gray monument. I cant spend that much money right now on just an engine and a rebuild might be just as expensive. I'm hoping (I need to stop that) that maybe i can drop the oil pan, inspect/remove the rod caps and maybe replace the bearings or push the pistons out the top. In my mind I know the crankshaft was probably scared too but im keeping my hopes high that it wasnt. If thats the case then the whole engine will need to be removed.
I know it not a good idea to buy a car with a knock but that was the condition or the purchase. I want to atleast try to get an idea of the work needed before considering parting it out.
I have an 03 Elantra and before joining this I have never paid much attention to the sound coming from the engine but now that ive seen a few videos and looked at some threads I think the engine in my Elantra knocks a bit.
Here is the video i was referring to in comparison - YouTube
It sort of sounds like this but a little less intense. Its definitely knocking but not as loud as the video. It does it all the time, not only when its cold but when its warm too... Its always sounded like that but I haven't ever paid any attention to it.
Anyways... after a whole day of reading about gas and octane and all that fun stuff I am not sure whether to try midgrade or primium gas...
There is this *knocking* sound everytime i hit the brake. I don't know what it is?
View 2 RepliesMy 2009 Toyota Highlander Hybrid makes an intermittent noise when I accelerate from a stop or decelerate to a stop. My best description of the sound is a sharp thud or a dull knock (maybe a dull pop). It happens almost exclusively when I accelerate from a full stop or from moving very slowly. A similar sound happens when I decelerate to a full or near stop. I'm very certain that the sound is coming from the rear suspension or drive train of the vehicle, but I have not proven it. When I'm moving along at normal speeds, I don't hear any sounds and the car feels solid. By pure luck, going over the right sort of bumps causes a somewhat similar noise, but that might be a read herring.
Trips to two separate Toyota dealers have not fixed the issue since it is not easily repeatable. The first dealer tried tightening some bolts. The second replaced one of the front(!) struts, tightened bolts and lubricated things. I have managed to reproduce the issue for the second dealer, but the noise wasn't persistent enough for them to track it down.
This type of SUV should be regarded as all-wheel-drive, but power is mostly delivered by the front tires. The rear tires are driven by an independent electric motor and differential. The front and rear drive trains operate separately; the only mechanical connection between them is the rest of the vehicle. I'm wondering if the electric motor could be slipping a little bit.
3.5 has engine knock coming from oil pan, gets louder when engine fully warmed up. Suspect connecting rod bearings. 99 Intrigue has 203K on it and otherwise in excellant condition. Is it possible to replace connecting rod bearings with engine in car. What is involved in removing lower crankcase after oil pan is removed. Car has been trouble free so far and would like to get another 60K out of it
View 5 RepliesIt only seems to happen every few days. I have noticed it when I come to a stop, then I hear a repetitive knock coming from under the front passenger side of the car. knock, knock... 7 times, in rhythm, not decreasing in volume, then it stops. Kind of like a gnome trying to get in from under the car... It does not sound like something is flapping or swinging as the knocks are consistent, it sounds mechanical in nature. The car is at the dealer right now for that and other things but they cannot get it to make that noise.
View 8 RepliesAfter I heard this sound thats sounds like a light knock coming from the left side of the car both front and back, i went to check it out.
Toyota Dealership mechanic : Definitely strut mount
2nd check from private mechanic : Definitely sway bar links (he wanted to change all four and sell me new llinks for $100 a pair.)
3rd check from sears service : Sounds like sway bar links, but it might be the struts, I cant say. I dont think its the mounts though(i asked of course). He checks sway bar links and says he doesnt notice any thing different from the ordinary, he thinks its tight. (but also thinks its possible its the problem). Basically left me more confused that i was.
2009 camry SE.
Now basically its a judgement call, but i'm planning on changing the RSB and replacing with UR RSB, so i might as well change those links.
I have an 06 grand Prix, about a month ago I started hearing a knock on the front driver side n it has gotten worst. At first I thought it could be a hub bearing or tire rod ends but I noticed service abs and traction system lights are on.
View 4 RepliesI was driving home from a backpacking trip when I noticed a knocking coming from my engine. It got worse as I drove up a large hill and suddenly became very loud, and I lost the ability to accelerate, power steering and brakes.
I managed to pull off the road and checked all my fluids, everything was good. No smoke from the engine and it was not over heating. I was unable to start the car, it wouldn't even make a noise, just dead.
Check engine light is broken and remains on. No other warning lights came on while I was driving.
The wife drove the Excursion (V10) to work today and it ran normal and didn't have any loud noises coming from under the hood. When she started the engine to return home it immediately started knocking. This is not a ping, but a knock. Not a loud heavy knock, but much louder than a ping. It has a fast frequency, seems too fast to be a rod knocking. The frequency is similar to a valve issue, but the knock seems to be too heavy for lifters. Oil looks good. Just changed out 2 weeks ago. Truck is driven everyday.
View 11 RepliesI have a high mileage Aviator - it currently has 162k+ ... I have owned it since 136k, and according to Lincoln's records the transmission was rebuilt/replaced shortly before that ... The truck has run well since we've owned it.
It has developed a noise that I originally thought was an engine problem (bottom end), but I got under it today and took a good listen and it sounds to me like it's coming from the top side of the transmission.
I recorded some sound: 4.6L dohc "rattle" from above transmission - YouTube .....
I have a 1998 Ford Explorer 4X4 two owner and only 63K miles. All service records including tranny flush. Tranny shifts fine, there are no "clunks" when shifting out of Park.The only symptom is an occasional bump or thud ( maybe more like a jolt )coming from underneath at the rear at highway speeds. Sometimes it is more pronounced than others. I don't believe RPMs change when this happens. Around town is fine and only at constant speeds above 55 which makes it difficult to recreate. I have checked for anything loose underneath ( incl spare tire ) and can't find anything.
View 3 RepliesThis is a 2000 EX with 146k miles on it bone stock. I have not done any of the regular maintenance on it yet or even gotten to really check this problem out. I am not driving it at this time mainly due to this problem.
The noise is heard the best at the rear of the engine and underneath the truck as the video shows. It seems to slightly change in sound (maybe a tad bit quieter) once I put it in gear (drive and reverse), I have not really heard a change in it after the truck has warmed up either. It does not sound at all really metallic to me..
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