Prius (2004-09) :: Engine Clatter On Cold Startup


May 27, 2012

I have a 2006/2007 prius that on cold start up works its self up to a rattle/ vibration in p mode on charge.

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Ford F-150 - 1997-2003 :: Engine Ticking Noise / Slight Clatter For 2 - 3 Seconds Upon Cold Startup

I've got a 2003 f150 with the 5.4 and 128,000 miles with an engine tick. Its not an exhaust leak I know that for sure. It has came up in the last 20,000 miles. I've used motorcraft 5 20 w/ motorcraft filter. I've tried a kreen engine treatment with no change. Heres the description/syptoms:

-Slight clatter for 2-3 seconds upon cold startup (happens very rarely)
-top end ticking that is loudest and most noticable when warm (quieter when motors cold)
-not timing chains/tensioners etc because the noise is coming from the top end and most noticeable on the passenger side.
-at idle the tick is present-when you rev at idle, the noise goes away.
-Driving (or having the engine under any load for that matter) the noise gets louder.
-Anytime I accelerate, tow/haul, go up an incline the noise gets worse
-Sounds like a "whirring" sound from within the dash.

With all that said I am thinking the lash adjusters are getting noisy. I had a certified gm tech that has 40 yrs mechanic experience under his belt and builds prostreet muscle cars on the side look at it. He listened to it to it and that was his diagnosis as well as its not that bad so just live with it. The noise at idle doesn't bother me, its when im driving with the windows down. The noise drives me crazy and is a little annoying to me.

Heres a link to a video of the sound and keep in mind it is much louder now : Triton engine noise/tick - YouTube

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Honda - Cr-v :: 1997 - Clatter Coming From Engine When Startup In Morning?

I've got a 1997 Honda CRV. Recently when you start it up in the morning there is a terrible clatter coming from the engine. Yet, once the car warms up, the clatter totally subsides and the car runs and drives normally. Turn the car off and then start it again, the clatter comes back - but then in a minute or so the clatter is gone and all is well. I've checked the fan area and belts - nothing is caught in there. Seems like the sound is coming more from the engine. Can't figure it out. By the way - did I mention that the car now has 338,000 miles on the odometer? Other than that, the car runs fine. Is it time to give up the ghost?

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Touareg :: Startup Noise Clatter Every Time For 2 To 3 Seconds

We love our Treg, but I am not happy about the clatter (like not lube for a second or two) when starting in the morning. Temps are warm this time of year. Otherwise, everything OK.

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Prius (Gen 3) :: 2010 Engine Clatter And Check Engine Light Came On

Started my 2010 gen 3 Prius 3 the other day and got a bunch of what I thought was engine clatter and the check engine light came on.

The next time I started it, no noise. Anyways brought it to dealer and they diagnosed it and ordered a new manifold.

The next day when the part arrived, I brought in the car. Talked to the mechanic, a great guy, and he explained what happened. Apparently, the clatter is actually the springs rattling in the clutch mechanism of the starter motor/electric motor and not the valves like I thought.

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Jeep - Wrangler :: Cold Start Clatter Noise

Video of Noise: [URL] .....

I am getting the above noise on startup, it goes away after 5ish minutes. It isn't exactly cold out. So I don't think its the oil viscosity. Its not a bad oil filter flow back valve, and its way longer than the oil lifters should make noises. I don't think it is a cracked manifold, I think the noise would be different.

Jeep wrangler 2005. 4.0L, ~99k Miles

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Ford - Thunderbird :: 2003 - Cold Start Clatter Noise

We have and enjoy our 2003 Ford thunderbird. It has the 3.9L v8. Great fun except for the first 3 seconds after starting. When you start it after it sits for more than three hours or so, it has a loud engine clatter for just a few seconds. Then it's fine and rides great with no other noise. It certainly appears that it is not getting lubrication for that first few seconds. What it is? Should I be concerned? I have heard suggestions like, change the oil filter, variable timing chain, and valve seals.

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Ford F-150 (2009-2014) :: 2 Second Clatter Sound On Cold Start - Cam Phaser?

It seems that my 09 F150 has developed a troubling noise... I'm looking for any cam phaser. I'm at 116,712mi. 5.4L motor of course.

On cold start, I hear about 2 seconds of "clatter" - sounds like something is "loose" on top of the motor. At hot idle, I hear the classic "diesel" idle, indicative of the cam phaser issue. In gear, the rattle intensifies and is very noticeable around 1000RPM.

Other than the noises, the truck runs great - like new.

Here's a video: [URL] ....

Under hood, under hood close up, driver's wheel well, interior, then interior in gear. You'll need to crank the volume to hear the last two.

Best I can tell, this is not an exhaust manifold issue. So, what say you? Cam phasers?

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Camry :: Engine Has A Slight Knock After Cold Startup

My 2011 Camry LE I4 with 21k miles has a slight knock after cold startup, at Idle for a few minutes that disappears after warming up. If you start and drive and don't let it warm up the knock, under load, is more pronounced.

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Santa Fe (CM - 2007-12) :: Squeal From Engine On Cold Startup

Twice this week our 2009 SantaFe (3.3l) had a squeal from the engine upon cold startup. The first time it was very cold (-20C or so) and this was louder and longer than the second time (-10C or so). The squeal lasted only a few seconds and trailed off to nothing. Each time the heater controls were set on defrost (fyi). In order of likely suspects, I suspect one of the following:

-compressor engaging and causing sudden increase in resistance on the belt or compressor engagement clutch noisy
-idler pulley for some reason causing belt to slip at first, but don't suspect idler bearing as noise disappears right away
-belt slippage due to resistance somewhere else--e.g. water pump or alternator.

This may not happen when I take the vehicle in for its next scheduled maintenance as by then the weather will likely be warmer. This has 76000 km on the clock.

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Sonata NF (2006-10) :: 2.4l Engine Tick At Cold Startup

I have a 2008 Hyundai Sonata 2.4l with ~235,000kms (~147,000 miles). It has been well maintained and has been a great car. It has been developing an engine tick noise at cold startup and it seems to be very gradually getting worse over time. This noise is most evident immediately after strarup and gradually dimishes over a period of about a minute and varies in terms of how noisy it is and how long it lasts. This nopise is never heard when the engine is warm. From what I have read online, this can be caused mainly by two things:

- use of an aftermarket oil filter
- timing chain tension insufficient

Late last week I changed the oil filter out from the Purolator Classic filter that I have been using for years to a genuine Hyundai oil filter. This did not make any noticeable change in the tick noise so I do not believe that this was a contributing factor.

Over the weekend I removed the valve cover and checked the timing chain tension. It was taught as it should be. I could push it down a bit between the camshafts but it would spring right back up. I also used a videoscope to look down inside the cam tunnel and found no evidence of the timing chain contacting any metal or the oil drip line for the lower timing chain sprocket. Everything appeared to be in order.

When I started the engine to confirm no leaks around the valve cover, I used a mechanic's stethoscope to check for the noise. I was unable to isolate it as the engine tick did not occur at that time. The cause of the tick noise continues to elude me, but I have ruled out the two common causes (oil filter and timing chain tension).

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Lexus LS 2007+ :: Engine Knock At Cold Startup

I recently bought a 2011 460 L, CPO with 28,350 miles. I love the looks and how it drives, smooth! But I do have a concern. Before I go to the dealer I thought I would educate myself from the experienced LS owners. I am hearing a very brief (1-2 seconds) mild engine knock at a cold startup.

This only occurs when the engine is cold and has sat overnight. It never happens after this first startup, even after turning the engine off and then on again. It kinda sounds like the oil isn't getting where it should be for a few seconds. Engine sounds great with normal and hard acceleration throughout the day. The dealership where I bought it is 300 miles away, so I would be taking it to a local dealership.

Now I did hear this noise and mentioned it to the service manager when I first bought the car, and the service manager told me that this cold startup sound is normal. He also mentioned the direct injectors at idle. I guess sometimes it's hard to fully trust what dealerships say. Is he right?

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Lexus RX 2010-15 :: Engine Knock At Cold Startup - RX450H

It almost sounds like somebody is taking a small hammer and banging at the plastic cover on top the engine when the vehicle is started new from cold. After about 8 or 9 knocks it goes away.

Taking it to a dealer soon to get it checked.

2010 Model year. 81k miles.

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Ford - F150 :: Whine Comes From Engine At Startup In Very Cold Temps

I has been quite cold in my area lately. Buy cold, I mean like 0 or a few degrees below. We also had some snow which ahs made it a requirement to drive my 4WD Ford truck with the 4.6L engine. This is a 1997 Ford F-150 light duty which is the oddball with the 7 lug wheels among others. It is 4WD with a manual transmission. The truck has close to 300k on it and I was told it had a used engine installed when I bought the truck but have never been able to verify this. The engine runs well without odd noises or clanks and doesn't burn or use oil. I have the O'Reilly brand 5W30 synthetic oil in the engine.

There has been a strange whine that comes from the engine at startup in these very cold temps. This only lasts a few short seconds and quickly goes away. I have the manual transmission in neutral so I figure it is engine related and not the transmission. It sounds like a gear noise or whine so I am assuming maybe the oil is too thick to get through the oil pump, timing chain, or similar.

This only happens at cold starts when it is VERY cold outside but I wanted to make sure this wasn't a sign of impending failure. The truck runs well otherwise and I would gladly replace the oil pump if it were going out. I was also thinking about switching to a 0W30 as the truck is mostly used in the winter anyway if the oil not being thick enough is a possibility.

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Lexus RX 2004-09 :: 2007 RX350 Cold Startup Rattle?

Our 2007 RX350 with 91,000 miles started an annoying rattle at startup that lasts a couple seconds then goes away. The car drives fine and makes no unusual noise after the initial start. Its definitely not normal as it hasn't done it the last 91K miles we have driven the car.

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Camry :: 2007 SE - Noise At Startup On Cold Engine When Temperature Is Below Freezing

I have an 07 SE (manual transmission). In cold climates has noticed a noise at startup on a cold engine when the temperature is below freezing (colder than -5C or so)?

The engine has to be cold (like sat overnight) and the outside temp has to be cold. Then at start when I turn the key, the engine starts fine, but as I release the key from the start to the run position I hear what sounds like the starter motor make a noise (short zipping sound).

At first I wondered if it might be slow to disengage, but if that shouldn't make a noise because the gears should be meshed ok? There is no noise with a warm engine, or with a cold engine on a mild day.

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Camry 2012+ :: 2AR FE Engine Knock / Rattle Noise At Cold Startup

There was a TSB for 2AR engine, Engine Knock/Rattle Noise at Cold Startup. My question is for those I4 camry owner, do you have these rattle sound when you start your vehicle at cold? I am not sure if mines have the same issue, but pretty sure is I can't find any differences between mine and this clip:

You Tube

So should I take it to the dealer? Or it's normal?

[URL] .....

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Camry 2012+ :: Grinding Noise On Startup When Engine Completely Cold

I start noticing a weird noise upon cold start up. It sounds like something is grinding. First goes starter sound and then engine noise together with this grinding noise. Grinding noise goes away within sec. or so. It is not really loud, but it definitely not engine or starter sound.

It happens only on cold starts when engine is completely cold. If I start engine, let it run for few minutes, shut it down and restart again, it starts without grinding noise. Don't remember if car was doing it from beginning, never turned car while I was outside. Few weeks ago when temperature dropped below freezing point, I turned ignition through passenger door to warm up the engine.

After that I begun listening every start up. Every start up same noise. Every morning and every time after work I hear this noise. No noise if car been driven recently or engine is still warm.

Not my car, but sound is identical : [URL] ......

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Accent MC (2006-11) :: Engine Has Rattling / Knocking Noise When Cold At Startup

so with the weather turning cooler i have noticed a new noise. i am at 34,000 miles and run synthetic oil ever 4-5k miles.

I hear a rattling/knocking noise when you start engine, not right away, but like after 15 seconds and it lasts about 30 seconds then seems to go away and is quiet again.

Almost sounds like a lifter is tapping due to not getting oil.

I changed the accessory belts a while ago and it did not first make this noise right after but maybe a few days after which coincided going from 80 degree weather down to 40 degree weather.

Could it be an accessory belt being too tight? If so, why wouldn't it make it on startup? I can see it going away as rubber expands as the warms but I would expect it to make the noise from starting till then. Not 15 seconds into running.

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Santa Fe (DM - 2013+) :: Check Engine Light On Constantly During Cold Startup

This morning during cold start up I noticed my check engine light was on constantly, I was able to get a OBDII scanner from a friend and perform a scan after work and brings up P0116, google search says HYUNDAI - Engine Coolant Temperature Circuit Range/Performance.

I did notice the radiator fan seemed to be running all the time. I had a look at the coolant level and it's near the full level line (green color if that matters). My questions is it safe to still drive it to the dealer (30 km away)? Would this be part of the powertrain warranty?

Since my wife is out of town i took her car as I did not want to cause any damage.

2013 Hyundai Santa Fe Sport - 2.4 AWD - mileage is at 67,000 km.

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Prius (2001-03) :: Grinding Noise For 20 - 30 Sec At Cold Startup In The Morning

My G1 prius (2001) started making a grinding noise when I start it up in the morning. There are no warning lights (yet) and it drives fine, but that noise can't be good -- something will fail shortly. I've searched the internet quite thoroughly and there was one similar problem reported, which ended up being linked to the ABS pump. The noise seems to come from the inverter, or somewhere under the inverter. I took a video of it and posted it here.

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