# Cold Start noise 2010 Corolla 100k **URL:** \ **Category:** General Discussion\ **Created:** [November 21, 2023, 8:16pm UTC](https://community.cartalk.com/t/cold-start-noise-2010-corolla-100k/193890 "2023-11-21T20:16:45Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![sandysprings6700\_169115](https://avatars.discourse-cdn.com/v4/letter/s/e480ec/32.png) [@sandysprings6700\_169115](https://community.cartalk.com/u/sandysprings6700_169115)\ **Post date:** [November 21, 2023, 8:16pm UTC](https://community.cartalk.com/t/cold-start-noise-2010-corolla-100k/193890/1 "2023-11-21T20:16:45Z")
![Screenshot_20231121_150921_YouTube](https://global.discourse-cdn.com/cartalk/original/3X/d/b/dbfa058215e2ccfeb9474d33f82cce5a65007636.jpeg) ---
**Author:** ![weekend-warrior](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/weekend-warrior/32/26122_2.png) [@weekend-warrior](https://community.cartalk.com/u/weekend-warrior)\ **Post date:** [November 21, 2023, 8:29pm UTC](https://community.cartalk.com/t/cold-start-noise-2010-corolla-100k/193890/2 "2023-11-21T20:29:36Z")
I’m going to say it is not your engine. It is probably your belt, and belt tensioner that needs to be replaced. And it’s probably a good idea to change your water pump too. if it has never been changed. ---
**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\ **Post date:** [November 21, 2023, 9:14pm UTC](https://community.cartalk.com/t/cold-start-noise-2010-corolla-100k/193890/3 "2023-11-21T21:14:13Z")
Concur w/@weekend-warrior above, noise description seems unlikely to be caused by lack of oil on internal engine parts. To confirm, ask your shop to measure the engine’s oil pressure using their shop gauge. If that’s ok, ask if using a mechanic’s stethoscope might be helpful to find the actual source. Adding additives to the oil could have an adverse & expensive to repair unwanted effect, particularly on the variable valve timing components. If you want to do something w/the oil, an oil and filter change can only help, provided the job is done correctly and the correct spec’d oil and filter are used. ---
**Author:** ![old\_mopar\_guy](https://avatars.discourse-cdn.com/v4/letter/o/6bbea6/32.png) [@old\_mopar\_guy](https://community.cartalk.com/u/old_mopar_guy)\ **Post date:** [November 21, 2023, 10:24pm UTC](https://community.cartalk.com/t/cold-start-noise-2010-corolla-100k/193890/4 "2023-11-21T22:24:40Z")
I think you need a better mechanic. ---
**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\ **Post date:** [November 21, 2023, 10:33pm UTC](https://community.cartalk.com/t/cold-start-noise-2010-corolla-100k/193890/5 "2023-11-21T22:33:43Z")
> [@weekend-warrior](#): > > It is probably your belt, and belt tensioner that needs to be replaced. And it’s probably a good idea to change your water pump too. if it has never been changed. After ONLY 13 years? 😉 > [@old\_mopar\_guy](#): > > I think you need a better mechanic. Yup! > [@weekend-warrior](#): > > It is probably your belt, and belt tensioner that needs to be replaced. And it’s probably a good idea to change your water pump too. if it has never been changed. +1 ---
**Author:** ![shanonia](https://avatars.discourse-cdn.com/v4/letter/s/9de053/32.png) [@shanonia](https://community.cartalk.com/u/shanonia)\ **Post date:** [November 21, 2023, 11:35pm UTC](https://community.cartalk.com/t/cold-start-noise-2010-corolla-100k/193890/6 "2023-11-21T23:35:21Z")
The mechanic is probably wrong. A better mechanic or DIYer would probably remove the serpentine belt and briefly run the engine. The noise will most likely be absent - most likely it was caused by one of the devices driven by that belt. Then it’s a matter of rotating each device, feeling for any play and listening for any sound. The rough or noisy component is suspect #1. If the tensioner and belt are original, it’s a good idea to replace them anyway. ---
**Author:** ![bing](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bing/32/4619_2.png) [@bing](https://community.cartalk.com/u/bing)\ **Post date:** [November 22, 2023, 2:06am UTC](https://community.cartalk.com/t/cold-start-noise-2010-corolla-100k/193890/7 "2023-11-22T02:06:14Z")
Until one of you guys sends him an email, he’ll never know the answer. ---
**Author:** ![sandysprings6700\_169115](https://avatars.discourse-cdn.com/v4/letter/s/e480ec/32.png) [@sandysprings6700\_169115](https://community.cartalk.com/u/sandysprings6700_169115)\ **Post date:** [June 1, 2024, 12:04am UTC](https://community.cartalk.com/t/cold-start-noise-2010-corolla-100k/193890/8 "2024-06-01T00:04:21Z")
As of today, May 31st 2024 the noise remains… so. My wife is primarily concerned with getting rid of the noise. I’ve finally got a little money to put into really getting to the bottom of the cause of the noise, … really trying to avoid a car payment. ---
**Author:** ![davesmopar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/davesmopar/32/41750_2.png) [@davesmopar](https://community.cartalk.com/u/davesmopar)\ **Post date:** [June 1, 2024, 12:36am UTC](https://community.cartalk.com/t/cold-start-noise-2010-corolla-100k/193890/9 "2024-06-01T00:36:02Z")
The noise maybe coming from the timing chain cover area, VVT stuff (sorry mind went blank)… My 2009 has been making noise only on cold start up for 100K miles now, one day I will get around to repairing it… lol ---
**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\ **Post date:** [June 1, 2024, 8:26pm UTC](https://community.cartalk.com/t/cold-start-noise-2010-corolla-100k/193890/10 "2024-06-01T20:26:10Z")
> [@sandysprings6700\_169115](#): > > As of today, May 31st 2024 the noise remains Suggest to clarify the conditions you hear the noise? Do you only hear it while the engine is cranking? Cranking means that ‘rrr rrr rrr’ sound you hear from the electric starter motor when you first start the engine, but before the engine actually starts and begins to run on its own. Or do you hear the noise even after the engine starts? If so, do you hear it when idling in the driveway? If so, how long do you hear it while idling in the warm-up phase before it stops?