Camry & Solara LoungeDiscussion area for every generation of Toyota's family car, the Toyota Camry. Lexus ES250/300 owners welcome! Topics of discussion range from fuel economy, safety, modifications, performance and more.
for those of you that have the gen 4 camry (or any other camrys) i have a question for you. do your camrys make weird rattling, clicking during morning start-ups? the noice comes from the left side of the engine (the belts side) you can really hear it outside though. After the engine warms up, the rattling sound goes away. It's just during the morning start-ups. any ideas?
the first thing i would try would be to chage the serpentine belt and go from there. Also use a stethiscope and listen to each pulley. but im thinking serp belt. how many miles are on your car?
i have about 101K miles on my car as of now. You know... i'm really worried because i've been searchin and i found a pretty convincing thread that the problem might be piston slap. Before a decent amount of oil gets inside the cylinder (morning start-ups), the piston has enough clearance and not enough insulations (oil). So basically, it has the clearance to bang around the piston and create such noises during start ups... i kind of believe this because if there is enough clearance INSIDE the cylinder, the oil will seep inside the cumbustion chamber and my engine will burn oil, right? and sure enough, when i checked my back bumper and trunk lid, there was brownish dust layered on top of them. please... help....
I've never heard of piston slap being an issue in a Toyota, although I guess it could be. As I understand it (someone feel free to tell me if I'm wrong about this -- it happens more often than I'd like to admit...), the term has caught on as a result of another bit of poor GM engineering (so what's new). Apparently, to save a few pounds in their current generation of "Vortec" truck V-8s, they chose to make the pistons out of a light alloy that expands greatly when heated. Hmmmmm, pistons and heat, how would those two ever come together (see, I too can be a GM engineer). Anyway, the expanded pistons in a lot of these engines are apparently striking the bottom of the head causing the noise that gave life to the term "piston slap." Whether or not the mechanism you describe could cause noise is an interesting question. I'm speculating that if you had enough slack in the structure to allow such movement, you'd already be suffering overwhelming wear problems.
Originally posted by ekpolk I've never heard of piston slap being an issue in a Toyota, although I guess it could be. As I understand it (someone feel free to tell me if I'm wrong about this -- it happens more often than I'd like to admit...), the term has caught on as a result of another bit of poor GM engineering (so what's new). Apparently, to save a few pounds in their current generation of "Vortec" truck V-8s, they chose to make the pistons out of a light alloy that expands greatly when heated. Hmmmmm, pistons and heat, how would those two ever come together (see, I too can be a GM engineer). Anyway, the expanded pistons in a lot of these engines are apparently striking the bottom of the head causing the noise that gave life to the term "piston slap." Whether or not the mechanism you describe could cause noise is an interesting question. I'm speculating that if you had enough slack in the structure to allow such movement, you'd already be suffering overwhelming wear problems.
please enlighten me a bit, what does GM have to do with toyota? are they the same company now?
Originally posted by tightcamry129 please enlighten me a bit, what does GM have to do with toyota? are they the same company now?
Other than a few minor collaborative deals, not much. And frankly, I hope it stays that way. My point was simply that "piston slap" is a known major issue for certain GM products, but this is the first time I've heard it mentioned with respect to a Toyota. That, in turn, makes me suspect (and it's only a suspicion -- I'm not offering this as gospel) that piston slap is an improbable answer. But maybe it IS your problem; only detailed diagnosis will reveal the actual truth. None of us are going to be able to speculate you to the answer you are seeking.
Have you changed your timing, accessory belts/water pump (all of them are usually done at the same time)? I've had the exact same problem, and after having it done, it was gone.
Could also be that your lifters needing adjustment.
__________________
Time is never wasted when you're wasted all the time.
I used to get that in the morning and like you said it goes away after awhile but it will get gradually worse and not go away....so I changed my timing belt and everything is now ok. Just have your dealer check it out, they don't charge anything to look at it.
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.
ToyotaNation.com is an independent Toyota/Lexus enthusiast website. ToyotaNation.com is not sponsored by or in any way affiliated with Toyota Motor Sales, USA, Inc. The Toyota, Lexus and Scion names and logos are trademarks owned by Toyota Motor Sales, USA, Inc.
Linear Mode
