Camry 2012+ :: Frequent Knock On Cold Start
Jan 19, 2014
I have a 2012 Camry Hybrid 4 cylinder. I like the car but it has a knock on cold start. I have around 12000 mi on the car. I noticed the knock after a few months of ownership. It does not do it every time. Usually happens after sitting overnight and in colder weather. I live in Minnesota so it gets cold. The car is always garaged. It started as a knock for around 15-20 seconds. Now it seems to be more frequent and lasts for a longer duration, but it eventually smooths out and runs fine. The noise does not sound good. Sounds like there is no oil in the motor and it vibrates and shakes some until it finally smooths out. I just think this sound should not be from a Toyota, with its advanced engine design.
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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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Noticed that when you first start the car it makes a very strange noise? Almost as if the motor was running dry for a few seconds and the rpms fluctuate a little... Is that normal? I've only recently owned my camry and was just curious. 2.5L motor.
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My car is making almost like a clunking sound when starting. It doesn't do it all the time, mostly it is when its a cold start but its happening more frequent. I have the push button start, would warranty cover this?
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2014 se , 7k miles. Get a pretty noticeable sound. its hard to explain its kinda like a grumble for about two seconds. on very cold weather starts.
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On a very cold start, overnight, temps are zero or below the car starts okay but sounds rough for a few seconds and lets out a bad smell. Almost like it stumbles at first then is rough then goes normal cold running. Car is at 40k miles.
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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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First: 2007 GX470 with 63k miles
On some 'cold' starts (and I use that term very loosely, because it never really drops below 40 degrees here), when the engine has sat overnight, and when I shift into reverse (never Drive, just Reverse) and stand on the brake I get a knock. I don't hear it in Park. Not valve clatter like on my german cars while the oil gets routed to the lifters, but instead a loud, startling deep-down knock that sounds like BAMBAMBAMBAMBAM. Then it goes away. Put it in neutral and the revs rise and it's gone. Put it in Drive and nothing there. Just lasts for maybe 5-10 seconds, but is it loud. BAMBAMBAMBAM! Like someone hitting a 2x4 on the block or tranny housing.
Once I'm past that 5-10 seconds it won't do it again all day. Just after a "cold soak". And perhaps 5-10% of the time.
There is a lot of examples with this motor of what some call "piston slap". Don't know if I have it - and I suppose it might get worse (to the point where I hear it) when the engine is cold and under load (in gear), but I don't get it in Drive. Just Reverse.
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Specs: 2003 Ranger Edge / 3.0 V6 / 5-speed 4WD / 238,000 miles
Yesterday my truck was in the shop for repair. Intake gasket, Transmission fluid change, all heater hoses, thermostat, serp belt and coolant flush. When I picked it up from the shop, which was after closing, I noticed a knocking on start up. From past experience on a different truck, it sounds like a cam that isn't oiling. After a few minutes the knock goes away. I drove for a few miles, turned off the engine and started it back up and no knock this time. This morning I started it, knock was back but went away after a few minutes. Oil was changed about 1500 miles ago. Running pennzoil 5/20 with a K&N filter. Up until yesterday the engine has been completely quiet. Was wonder if something may have clogged the filter or the drain back valve.
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I now have 500 Miles on my LE. Driven soft Never over 2,500 rpm except, one time I accelerated to 4,500 RPM in first. Short 5 Mile trips.
Engine knock on start-up (Lasts one second)
sounds like a lifter pumping up.
Only happens occasionally.
Happened last night after driving 40 Miles and parking it for two hours.
Is this normal? I have noticed this since the first 10 Miles on the odometer. Figured it was the 0W-20 Oil.
My friend has a 2003 Echo with 100,000 miles and it does not do this.
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2002 Ranger XLT auto 3.0 will not start after it has run awhile, Was very intermittent at first sometimes six months would pass, sits for and hour or so and would start right up and run great. Lately it is becoming more frequent. Good fuel press, good spark, I have changed the coil pack, fuel relay, filter , am at a loss.
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Its the 5.4 ....its been an ongoing problem...first it wiuld happen once a month starting maybe a year ago. Turn the key off and try again and it would start up easily. Gradually became more frequent...maybe a couple times a week now and sometimes taking more than one attempt. It died on me while driving last week...started easily again. Today after driving i parked it and a few minutes later it would not start even after 10 or so attempts....waited 10 or so minutes and started right...killed it and restarted 5 times easily. Brought it home killed it and it would not restart.
Now its starting again......so i cant troubleshoot something that is not working. I ruled out fuel pump/regulator because it is either running good or not at all and also it would not start immediately after killing it. There should be engage pressure in the lines to do something but its either a start or no start situation. Its not showing codes either....so I am guessing that rules out sensors....? ......so i guess something is causing a no spark or a no fuel inj. Pulse......... I have a cam sensor i bought a few weeks ago and never put on trying to aviid being stranded.
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I have a 14 Camry 4 cylinder with 37,000. Just bought it 2 weeks ago. The a/c is not coming out cold. I was thinking about maybe it needs a recharge but wouldn't that seem like the car is too new to already need to be recharged?
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2014 Camry SE i4 20,500 miles ... Is it normal to smell gas coming out from the exhaust during a cold startup? After the car is warmed up the smell disappear ...
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I have a 2012 with 5k miles. Starting near 3500 miles, the car started doing hard shifts when 'cold', e.g., when started after sitting overnight. As the engine warms over the first few miles, the shifting smooths out.
The shift behavior also occasionally presents when the engine compartment cools during normal driving. E.g., if I drive several miles at 45mph on a cool day, the airflow under the hood allows more cooling than when stopped at a light.
The cold shifts are getting harder as the mileage of the vehicle increases. Changing from 'D' to 'S' does not work for the problem.
After several rounds with the dealer, they connected me with a Toyota regional representative. He and I drove my car, along with several other 2012's on the dealer's lot, each with a different odometer reading from 2k to 10k. I have also driven a 2012 owned by my parents, that has 2k miles. The conclusion he and I both reached is that the 2012's have a common cold-shift problem that starts around 3k-4k miles, and worsens with mileage. The highest mileage car I drove (an XLE) had 10k miles, and its cold-start shift performance was terrible.
After a month, I'm still waiting to hear from Toyota about what they plan to do (if anything). What was the resolution?
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I have found on my new 2016 Camry XLE that on cooler mornings of 50 degrees and the engine is hot, when I set the AUTO button on and set the temperature to 70 degrees, the system blows out cold air through the top vents. I have to run the temperature up to 75 to receive warm air from below. Is there a way for the dealer to change the settings to warm at lower temperatures???
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We are finding that recently the dash vents will suddenly blast out cold air and the A/C light comes on in our 2013 Camry. The dealer just gave my wife some excuse about humidity etc. This is without having made any adjustments. This is my wife's car but I experienced it myself last week. I said what the heck is that all about and she then told me that it just started acting up.
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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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We have been having this ongoing issue with the ventilation system in our 2013 Camry XLE during cold outside temperatures since last fall.
When the system is in the auto setting and set around 70-72 deg. F, the system delivers a comfortable temperature from the floor vents or a combination of the floor vents and defrost. The temperature that I measure is usually in the 100-115 deg. F range. After about 20 - 30 minutes of driving, the system will switch on the dash vents along with the floor vents. At this time the temperature coming out of the dash vents is cold and frequently measured as low as 53 deg. F. Along with this the floor vents are still delivering warm air. Been an automatic system I would expect the supply temperature to modulate to maintain the cabin temperature to the desired setting but not in this manner. All this is on overcast very cold winter days.
I drove the vehicle the other day when the outside temp was around 12 deg. F with the sun shining resulting in a bit of a greenhouse effect inside. With the control set at 70 deg. F and in auto I noticed that the air was only coming out of the dash vents and was a bit warmer this time (about 60 deg. F). This scenario is a bit more acceptable although the floor area was cold as expected considering the cold outside temperature.
I have taken the car to our dealer who has tried to diagnose the situation and have replaced one sensor that resulted in no change. They have been in contact with Toyotas technical dept. as well for assistance. They are indicating that all the air comes from one box and it is impossible to get colder air from the dash vents. Obviously with our current situation this is not the case. The service manager at the dealer was hoping to test the operation of another similar vehicle but so far has been unsuccessful.
This has been going on since last fall after my wife complained about it and was not happening the previous winter. Presently when this situation occurs we switch the control to manual damper control to shut off the cold air blowing in our faces.
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My Camry Hybrid XLE has been at the dealership for a total of 26 days and 3 unsuccessful repair attempts relating to my dash that constantly creaks and makes cracking noises during cold weather. The shop foreman at the dealership also has not had a single camry (besides mine) come back for a noisy dash. The lemon law in my state kicks in at 30 days in the shop and/or four unsuccessful repairs and the dealer is well aware of this. I currently have the car and am waiting for a 'field technical specialist' to show up to take a look. I was told he/she comes comes 'once a month' but offered no more details than that. I noticed on this forum that some dealerships can call the specialist whenever and have them show up. Apparently mine only comes once a month... My luck will be that it will be too warm the day the specialist shows up and they will not be able to reproduce the issue!
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I recently took my car to the dealer as it is under warranty, 25000 miles on it... (I used to be a Toyota tech a while ago)
after a cold soak, the gas engine starts, but its very shaky, almost like a miss-fire. And at about 10-20mph when you go to accelerate lightly, to make the gas engine start, it starts vibrating again. but if you give it more gas, it smoothens out. Still sounds like a misfire to me...
But, there are no codes.
The dealer replaced all 4 injectors, performed a throttle body service, and an EFI Service, includes, fuel system cleaning, tank additive.
they told me the injectors for #1 and # 2 where not performing correctly and that they needed to be replaced. after opening a case with the infamous TAS (Toyota tech support)..
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