Prius (Gen 2) :: 2005 Engine Makes Noise When Cold - Could Be Piston Slap / Valve?
Nov 8, 2011
My 2005 with 160k miles has engine noise when cold.
I talked to a couple specialists who said it could be valve noise another said valve noise would not abate when the engine warmed up. He suspected piston slap. A valve adjustment is pricey and the local independents are afraid to touch it given the complexity and needed shim packs. If it is piston slap I would be disappointed after spending a pile of dough to still have the same noise.
Have I missed a possible cause?
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I have a loud noise coming from the passenger side of the engine, on my 2014 Santa Fe Sport 2,4 with less than 6000 km L. My buddy said it was a lifter. Last night, my brother-in- law, a qualified mechanic, who is the fixed operations manager at a Hyundai dealership said it is ''piston slap'' and that they had already changed two engines this year for this.
I had the mechanic listen to the noise 2 weeks ago when in for my first oil change but Blondie said it was the fuel injection system...
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Just purchased 2015 Camry LE. While taking delivery, I noticed a subtle piston slap that started shortly after the engine started and completely went away after driving the car for about 10 minutes. Most people would not consider it an issue, but I am an engineer working with large industrial engines all the time so it was a concern. I asked to drive another Camry on the lot and it had the same issue. The service manager came out and said that this slap is normal and all 2012 - 2015 Camry with 2AR-FE engine do this. I bought the car anyway since I loved the overall design, ride quality and the features, but the piston slap keeps bothering me.
2012-2015 Camry equipped with 2AR-FE 2.5L engine? In order to check you have to start the cold engine and wait for the RPMs to drop to around 900 which will take 1-2 min. Put your ear in front of the radiator and listed to the subtle metallic tapping noise of the pistons rocking and slapping the bore walls. The noise will last for about 10 minutes until the pistons expand and close the excess gap between them and the bore.
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2007/ES350.
I got this car in december 2014 and yes, there was this well known piston slap noise on cold mornings.
The dealer where the car has been maintained did an oil change at 54 400 miles and they added bulk oil 0W-20. I think that's a pretty thin oil for this engine, also the manual recommends 5w30.
So I bought a box of Amsoil 5w-30 Signature Series, the OEM filter and did an oil change.I could immediately tell the difference, the piston slap started to fade and the MPG went up. They say that this oil will improve the fuel consumption, and that's true.
But the most important thing is that piston slap noise started to fade immediately and now after 2500 miles there's around 10% of the piston slap noise. The engine is smooth as silk and I'm really happy with the result.
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I just turned 210,000 miles on my 2003 Silverado, and I have started to notice what sounds like piston slap when at warm idle. When I start the truck in the morning, it sounds fine. But once the engine warms up, then I hear the noise. I'll rev the engine up to 2000-3000 rpms for a couple seconds, then let it idle, and the noise is gone. But 10-20 seconds later, it slowly comes back. I do not hear the noise at all when driving the truck. I tried SeaFoaming the engine through the throttle body and the brake booster vacuum line thinking it was carbon build up, but this did not fix the issue. However I may have eradicated the entire mosquito population!!
I've read that piston slap on these trucks only happens during a cold start. This is not the case with my truck. But am I still hearing piston slap.
2003 Silverado W/T 4.8L V8
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A friend from work is having what he says is piston slap, but only under a load. I feel it could be the timing set since it's never been changed and at least 160k miles. Odometer quit working at least 5 years ago. Other than that, motor runs great. 1997 F150 4.6....
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On cold starts the engine makes a continual squeal. Within minutes if I drive it or simply rev the engine a few times the sound is gone and the engine again sounds glorious. If I spray the belt with water the sound immediately ends. I have replaced the water pump, belt tensioner roller, idler rollers and of course the belt. All to no avail. 2005 Porsche 911...
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I have a late 99 7.3 that developed a knocking noise. I pulled the passenger's head and cylinder 5&7 have a spot where it looks like it came in contact with the valve. I'm not some master mechanic but am learning. What would be my next step to find why it hit the valve and to fix the problem?
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My Prius has been sitting in the fridged weather in my driveway. It's Tuesday and the temperature is currently 18F. The last time I drove this car was two days ago on Sunday.
I started it up a few minute ago and heard a HORRIBLE knock or slap from the engine bay. It alarmed me to the point where I wanted to run in and grab my camera but I tried listening to understand what it could be. At first I thought it might be a belt came loose and was whipping around hitting the components but it went away after about 30-40 seconds. It was so loud that I thought the neighbor two doors down who was shoveling snow could hear it.
I will let it sit overnight and will definitely capture this on video in the morning. I have a feeling the noise will be back.
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I have a 2001 Toyota Tacoma that has a knock or ticking in cold weather. The problem starts sometimes immediately after I start and other times it is only when I press on the gas in the cold mornings after a few min warm up. The noise goes away after 10 min. The question I am wondering is this:
1: could it be worn piston rings and the pistons are slapping the cylinder wall
2: is it an oil pump problem or a oil restriction issue
3: is it a valve guide issue
4: with the history of the 2.7 having exhaust manifold issues (poor manufacturing) could a cracked manifold be the issue
I change the oil myself, the oil filters have been OEM toyota, the noise has been going on since 60,000 miles, the truck is at 230,000 miles.
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Our 1997 850GL wagon with 160k miles has persisently noisy valves. At considerable cost, we replaced the hydraulic valve lifters with new ones from Volvo. Noise persists. Increased oil viscosity, now at a ridiculous 15W40. Also using an oil additive to further increase viscosity. Little if any noise when engine is cold but once warm, much valve clicking. We change oil religiously and keep oil topped up.
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it was warmer the day than it usually was so it dosnt make the noise as bad however there is usually a lot of clatter/knock from the engine when cold. does it at idle and while accelerating. it gets less once the engine warms up but has been doing it for a while. car has 93k miles and synthetic oil is used. there is also a metal rattle sound almost like a heat shield that is loose. idk if that is part of the engine issue or not. but it only happens in winter or when temps fall below 60 degrees. kinda hard to hear on the vid but its there.
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I got in the car today and started it... I was waiting a few seconds for someone to get in the car (it was in the garage) and as soon as the engine kicked on there was a very very large long rattle noise i immediately turned the car off. Waited again and turned it on same noise.. the only thing I found was a cover under the car towards the front was really loose. ( I haven't hit bottom or anything while driving) but I did have the lighted door sills just installed the other day. But it never made that noise..
btw i have 1100 miles on it..I looked under it and is the black dust protector thing supposed to be loose like if I push on it I can make it rattle..
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I have bought this car in 2006 and had a trouble free experience so far. My car had roughly 170000 Km on it. This very first generation Prius from Japan and all the instruction is in Japanese. Engine: 1NZ-FXE
Main Problem: At times when the turtle sign comes, the engines makes a lot of noise. It feels like the engine is overworking. I also hear some air suction kind of sound from the back of the car (I believe it is to do with the main battery). The car will not accelerate. I need to go to the road side and then turn off the car. Wait for a little while (may be 5 minutes). Turn the engine on and then drive again.
Other problem:
1. Red Triangle is always on (see the pic)
2. Dash Board screen is always and now completely white so I cannot see any error message (see the pic)
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I drive a 2005 Camry SE. In the mornings, when I start it up for the first time, my engine almost...growls. That's the only word I can think of. Not even growl. But instead of purring like a kitten, it purrs like a tiger . And it's only when I first back it out and then take off. Once it's good and warmed up, it drives and sounds perfectly. Shifts beautifully.
And this morning, I let it warm up for awhile and it didn't make any noise when I took off.
I talked to my coworker about it and she said she had a similar issue with her 2004 Saturn Vue and it was something about a manifold, but couldn't remember what it was called. And she said her mechanic was able to fix it, but only temporarily and then told her it would cost her big bucks to fix it permanently.
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01 Passat v6 150K tiptronic. When cold, the tranny makes an occasional grinding noise however when at operating temp it runs fine with no slippage. Changed the fluid/filter and added lucas treatment. It worked a little but my mech said to warm up the car before driving. Might be the torque converter?
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My 2005 Ram 1500 makes a knocking noise (like a diesel) when i first start it up. The colder it is the louder it is. Once warm it is quite and i have no performance issues.
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I have a 2005 Chevy Cavalier and have been realizing that the ride has been getting noisier, but when I make a left hand turn ( or even turn the wheel 5 degrees or so to the left) it is much quieter. It sounds like a low vibrating sound and seems to shake the whole front end of my chassis. I can feel the vibration through the gas pedal, and it continues even when in nuetral or without the gas depressed. It is worse between 40-65 mph. Loose parts, misalignment, motor mounts, bad belts? And what it might cost to have this fixed?
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My 01 accent's engine makes a clattering sound(sounds a little bit like a diesel engine) when it's first started in the morning. After warming up (in about 20 seconds or so) the sound disappears. My oil level is normal(last oil change about 4k miles ago with full synthetic oil. I normally change oil at 5k intervals with full synthetic), timing belt changed about 1 year(20k miles) ago. Should I be worried?
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I have a 2006 Subaru Forester automatic with about 40,000 miles on it. When it gets cold out, I notice that when I first start driving the car, it jerks/lurches and makes a loud noise when shifting from first to second and second to third. When the car warms up after driving for awhile, it doesn't do it anymore. It's much colder here (high today of zero), the car is doing this much more often. I brought it to the dealer and they completely flushed the transmission fluid (which they said looked yellow instead of red/orange??), but it is still making the noise and having trouble shifting in the cold. They said need to take the transmission apart, so I've been leary about taking it back. My husband thinks I should just drive it until it dies and then get a new transmission if needed.
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I have 05 F250 SD with 150k on it. The engine has the typical cam phaser knock, timing chain slap on start up and occasionally have a noisy lifter. As long as I use fresh 20-40 oil the engine symptoms are less and the engine runs strong. The motor also doesn't leak or burn oil and the plugs were change out about 20k ago.
The truck is still good and is prefect for my needs so to me it's seems worth fixing the needed repairs. What I would like to figure out how far should I take the motor... just have the chains, guides and phasers replaced or buy a rebuilt motor and swap it? I'm thinking just doing the phases and etc would be 1/2 the cost but may not last as long as rebuilt motor. But realistically I might only put 5-7k miles are year on it anyways.
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