Prius (2001-03) :: Subtle Knocking Noise For Few Seconds When Start The Engine
Recently, when I start the engine (cold or even warm starts) I hear a subtle knocking noise that doesn't last too long but a few seconds. I figured that maybe it's because our area may still be using winter mix gasoline... but I'm not sure. Also, there's a rattle underneath the car when the engine switches into generating electricity with MG1.
This only happens after a start-up procedure (cold or warm). It stops when I push the gas pedal down a little bit (while still in park) then it goes into charging again, and by that time, it's stopped. I figured it may be a heat shield on the exhaust. It sounds more up in the front.
Also, when I start the car, the engine starts smoothly but then 1-2 seconds later goes into spinning MG1 which makes the car kinda sound like "vrrrrrrr---VRRRRRRRRrrrrrrrrrr...." .
Prius (2001-03) :: Engine Knocking For 30 Seconds When First Starting Up
A few months back, I posted a problem with my '01 prius: engine knocking for @30 sec when first starting up. Does NOT happen on first start of day, only on subsequent ones. Random misfires not corrected by changing coils/plug. It's been in the shop for awhile, and no diagnosis. I'm ready to sell the thing, unless there is a quick fix. New hybrid battery 20# miles ago; used transaxle 10# miles ago (with 1.5 yrs left on 2 yr warranty); new tires 10 miles ago. Has 185,000 miles.
View 1 RepliesPrius (Gen 3) :: 1.8L Engine Starting Knocking / Rattling And Vibration That Lasts For 5 Seconds
The engine starts with knocking, rattling, and vibration that lasts for about 5 seconds. It seems to be an intermittent, rare event. With nearly 250,000 Prius in the North American market and the onset of cooler weather, it is time to see how frequently this occurs.
View 19 RepliesPrius (2010-12) :: Loud Knocking And Shaking On Cold Start
We have had a few mornings (in garage) where it would seem to not really id say a knock but maybe a clicking sound and it would quit right away. This morning that did not happen so i shut the car off and checked oil it was low.
Got under the car and can not see any leaking no oil on ground. So i had a QT i put in and that seems to quiet it after a few seconds.
I called local TOY dealer and they said its common for 2010 to use some oil and not much they can do. I thought what is a little it was at the end of the dipstick.
They said they can only fill it up and then have me come back in 1400 miles and see how much is used.
Prius (2010-12) :: Engine Knocking - EGR Was Clogged
I took my car for the engine knocking at 34xxx miles to the dealer here in NJ. They mentioned it was the EGR that was clogged, so they replaced it. 2 weeks after that, the same incident happened whenever it wasn't allowed to warm up. This time the dealer diagnosed it with having a hole in piston #1? To make the story short, i received my car 2 days ago with a brand new engine from toyota. I tried to re-create the same issue, and it would not happen. Could this be resolved once and for all.
View 19 RepliesLexus RX 2010-15 :: RX350 Engine Ticking / Knocking And Rattling On Cold Start
I just purchased a 2010 RX 350, has only 7k miles on it. Really, really nice car. I noticed for the first time yesterday the engine ticking/knocking/rattling/whatever you want to call it sound when starting up on a cold start. It definitely goes away after about 5-10 minutes of running.
Most people seem to accept this as "normal". They hear it, live with it, and they never have any problems. I am a new Lexus owner, so I have trouble digesting that such a luxury vehicle with so few miles would have a "normal" engine knocking sound at 7,000 miles.
A few people posted in other places that this is indeed an issue, and should not be happening. There is a a Toyota (Lexus) service bulletin that I didn't get the details on, it is LSB-0028-09. LEXUS: ENGINE TICKING NOISE AND/OR MIL ON P0014, P0015, P0024, P0025, P0017, OR P0018. ENGINE MECHANICAL. *PE
Looking for details on this service bulletin, and if it does indeed apply to the engine knocking sound.
- Premium gas
- High viscosity cold synthetic oil
- Dealer fixes issue
- Other fix?
Prius (2010-12) :: 2011 - Engine Knocking At Startup?
Initially thought that this was related to some water in the tank, since it started when the gas dropped to 1 bar (already put some stuff HEET when put the whole tank, did 60miles so far). ODB throws out multiple cylinder misfire (codes 300, 301, 302, 303 etc). It lasts up to 3 seconds. Sometimes the check engine pops up sometimes it doesn't. there was absolutely no problem under load. does it seem like a fairly common problem ? Intake manifold clogged ?
View 14 RepliesChevrolet - Blazer :: 2000 - Knocking Noise For 15 To 20 Seconds After Start Up
2000 Blazer 4wd, automatic, 122000 miles
In the last couple of weeks, if the Blazer isn't driven for 3 or more days, there is a slight knocking noise for 15 to 20 seconds after start up. Oil level and pressure are fine. I'm guessing it's the lifters.....
Elantra MD (2010-15) :: 2012 - Engine Rattle Noise For 1 Or 2 Seconds On A Cold Start
I have a Hyundai Elantra Limited 2012. A few months ago the Short Block was replaced because the engine was noisy. Now it started to do that noise, if I remember it's a little bit similar : Youtube video: [URL] .... Or search youtube for: Hyundai elantra 2012 engine rattle noise
It rattled very loud for 1 or 2 seconds on a cold start the other day too. Noise appears to be coming from the engine. It does it pretty much all the time, at idling, when I accelerate it accelerates too and when I slow down it kinds of do too slowly. Need another new short block or is it something else like the timing chain or a bearing?
Prius (2010-12) :: Cyclical Engine Noise Every One To Two Seconds
I have a new 2010 Prius so am getting used to a different driving experience. One thing I have noticed is that between 55-65 miles per hour I hear a cyclical engine noise every one to two seconds. It is a hum followed by another hum. The noise is not constant but has a one or two second delay between hums. But this cycle is constant between these two speeds. Is this a normal engine sound? If so, why do I notice it only between about 55-65 miles per hour? A technician at a Toyota dealership told me that the 2010 Prius has 26 onboard computers to detect any problems. He said that if there was an issue a red triangle would appear on the display to alert me to any type of problem. I am about to make a 3,000 mile round trip in the Prius and need to know if this cyclical engine noise is cause for concern or just a normal part of the electric/gas engines operation.
View 4 RepliesPrius (2010-12) :: Engine Starts Up For Few Seconds Then Shuts Off
How do you warm up? I turn it on and it might start the engine for a few seconds then shut off... How do I know it's ready and warm?
View 9 RepliesPrius (2010-12) :: Loud Knocking Noise And Check Engine Light?
So my 2012 plugin was parked for about 3 days, and when I turned it on, heard loud knocking and the check engine light came and stayed on.
When switching the car on or off, I'll hear two taps/ticks that were not there before. Loud knocking is not there now.
What can the issue be? It was very cold and snowing.
Sonata NF (2006-10) :: Knocking Sound Lasts For About 30 - 45 Seconds After Cold Start Up
2006 Sonata LX. It's only on a cold start up and lasts for about 30-45 seconds tops..and then it goes away. Car has 74k on it. Treated well. Only use synthetic oil and no check engine lights. Last oil change I put 5w 30 in it. I know it says to use 5w 20. Could this be the problem?
View 17 RepliesFord F-150 - 1997-2003 :: Start And Idle For 2 Seconds Then Knocking Sound And Die
I have a 97 7.3 ... I've had it about 2 months now and now it wont start! It will start and idle for 2 seconds then start knocking and die! I had a buzz test ran on it and all is good. I also checked my Icp and checked my uvch harness with my multimeter. Before this it would run ok but seemed like it had a miss and a lack of power. On start up if i didn't have it plugged in it would smoke white smoke horribly. I am thinking maybe my IDM. I need my truck for work .... I had it hooked up to a scanner and it said faulty IDM.
View 1 RepliesPrius (2010-12) :: Viper 5701 Remote Start Will Not Stay Running For Over 15 - 20 Seconds
I had a Viper 5701 installed and it only stays on for 20 seconds then shuts down as if I was pressing the brake pedal. What is the work around? The hand held computer says the alarm is set for 12 minutes.
View 3 RepliesPrius (2004-09) :: Gas Engine Start And Stall In 3 To 4 Seconds
My car was driving good when i had an accident just the fender and door was hit, but i loved the car in the body shop for 1 1/2 years now i went to pick it up and the battery is low, the gas engine start and stall in 3 or 4 seconds . Can i tow the car with the wheels on the ground and been pressing the brakes a little to re charge the battery, 2007 prius 120000 miles.
View 7 RepliesPrius (2010-12) :: After Releasing Gas Pedal Can Hear Engine Revving Up For Seconds
After stepping over gas pedal revving up, when I release the gas pedal I can hear the engine revving up some more instead of slowing down.
When I release the pedal, the engine is still making the noise as if I am stepping on the gas harder for about 3 seconds. when this happened, EV mode will be always not available, and gasoline consumption is increased. Getting lower MPG.
Prius (2010-12) :: Engine Making Pinging / Knocking Noise At Low Hybrid Battery Level
Recently I started to hear engine pinging/knocking-like noise when the hybrid battery level becomes low like two bars and the car starts a charge cycle. I also hear it occasionally when I accelerate on uphill. Is this normal or should I take it to a mechanic?
View 2 RepliesElantra MD (2010-15) :: Very Loud Clicking / Knocking On Cold Start
There's a thread similar to this on the front page, but I wouldn't exactly describe my issue as a "rattle".
I've got a good video of the sound it's making here : [URL] .....
It's definitely much louder with the hood up--doesn't seem quite as drastic when sitting in the driver's seat.
I've come across the thread here on the engine rattle/knock fix, but I'm not sure if this is the same thing. Would this be considered a knock?
It's a 2011 Elantra with about 82,000 miles on the odometer. It has an extended warranty on it, in addition to the 100,000 mile powertrain warranty on it, so it's at the dealership this morning.