# Engine knocking when its cold **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [January 2, 2021, 5:20am UTC](https://community.cartalk.com/t/engine-knocking-when-its-cold/173784 "2021-01-02T05:20:48Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![ate6810\_173233](https://avatars.discourse-cdn.com/v4/letter/a/ecc23a/32.png) [@ate6810\_173233](https://community.cartalk.com/u/ate6810_173233)\ **Post date:** [January 2, 2021, 5:20am UTC](https://community.cartalk.com/t/engine-knocking-when-its-cold/173784/1 "2021-01-02T05:20:48Z")
Hi I have a Toyota Camry GL 2007. When I start engine, It start with a knocking noise. This noise is exactly at 1.5kRPM to 1kRPM. I do not hear any noise at RPM upper than 1.5 and lower than 1 even when engine is cold. After 2 or 3 minutes the knocking finished. How can I fix this noise? ---
**Author:** ![db4690](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/db4690/32/2583_2.png) [@db4690](https://community.cartalk.com/u/db4690)\ **Post date:** [January 2, 2021, 5:33am UTC](https://community.cartalk.com/t/engine-knocking-when-its-cold/173784/2 "2021-01-02T05:33:17Z")
piston slap? ---
**Author:** ![ate6810\_173233](https://avatars.discourse-cdn.com/v4/letter/a/ecc23a/32.png) [@ate6810\_173233](https://community.cartalk.com/u/ate6810_173233)\ **Post date:** [January 2, 2021, 6:34am UTC](https://community.cartalk.com/t/engine-knocking-when-its-cold/173784/3 "2021-01-02T06:34:18Z")
I have uploaded a video that shows this knocking > **[Gofile](https://gofile.io/d/Xgscs0)** ---
**Author:** ![It\_s-Me](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/it_s-me/32/12660_2.png) [@It\_s-Me](https://community.cartalk.com/u/It_s-Me)\ **Post date:** [January 2, 2021, 1:56pm UTC](https://community.cartalk.com/t/engine-knocking-when-its-cold/173784/4 "2021-01-02T13:56:10Z")
With 248,549 miles on it, I’ve heard worse. ---
**Author:** ![Cavell](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cavell/32/43396_2.png) [@Cavell](https://community.cartalk.com/u/Cavell)\ **Post date:** [January 2, 2021, 2:34pm UTC](https://community.cartalk.com/t/engine-knocking-when-its-cold/173784/5 "2021-01-02T14:34:03Z")
Does it knock when motor is started while warm? Like at store? ---
**Author:** ![SteveCBT](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/stevecbt/32/3192_2.png) [@SteveCBT](https://community.cartalk.com/u/SteveCBT)\ **Post date:** [January 2, 2021, 11:02pm UTC](https://community.cartalk.com/t/engine-knocking-when-its-cold/173784/6 "2021-01-02T23:02:42Z")
Make sure you are keeping up with oil changes and add a can of Restore to the oil. I have had a few higher mileage noisy cars that got quieter with Restore. ---
**Author:** ![ate6810\_173233](https://avatars.discourse-cdn.com/v4/letter/a/ecc23a/32.png) [@ate6810\_173233](https://community.cartalk.com/u/ate6810_173233)\ **Post date:** [January 3, 2021, 6:04am UTC](https://community.cartalk.com/t/engine-knocking-when-its-cold/173784/7 "2021-01-03T06:04:49Z")
No. When the motor is warm it start without knocking. But when motor is off for 1 hour, it start with knocking. I have changed oil pump, spark plugs and gas filter but not affected. I have this car for 4 years with this engine behavior ---
**Author:** ![ate6810\_173233](https://avatars.discourse-cdn.com/v4/letter/a/ecc23a/32.png) [@ate6810\_173233](https://community.cartalk.com/u/ate6810_173233)\ **Post date:** [January 3, 2021, 6:09am UTC](https://community.cartalk.com/t/engine-knocking-when-its-cold/173784/8 "2021-01-03T06:09:14Z")
I used it once but did not affect. Is there any problem with car engine? ---
**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:** [January 3, 2021, 6:11am UTC](https://community.cartalk.com/t/engine-knocking-when-its-cold/173784/9 "2021-01-03T06:11:36Z")
The engine is likely close to the end of its life. It has a quarter million miles, that’s plenty. ---
**Author:** ![ate6810\_173233](https://avatars.discourse-cdn.com/v4/letter/a/ecc23a/32.png) [@ate6810\_173233](https://community.cartalk.com/u/ate6810_173233)\ **Post date:** [January 3, 2021, 6:55am UTC](https://community.cartalk.com/t/engine-knocking-when-its-cold/173784/10 "2021-01-03T06:55:57Z")
I know. How can I fix this noise? ---
**Author:** ![VOLVO-V70](https://avatars.discourse-cdn.com/v4/letter/v/8e8cbc/32.png) [@VOLVO-V70](https://community.cartalk.com/u/VOLVO-V70)\ **Post date:** [January 3, 2021, 2:16pm UTC](https://community.cartalk.com/t/engine-knocking-when-its-cold/173784/11 "2021-01-03T14:16:02Z")
> [@ate6810\_173233](#): > > I know. How can I fix this noise? Easy , replace the vehicle. ---
**Author:** ![Cavell](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cavell/32/43396_2.png) [@Cavell](https://community.cartalk.com/u/Cavell)\ **Post date:** [January 3, 2021, 2:55pm UTC](https://community.cartalk.com/t/engine-knocking-when-its-cold/173784/12 "2021-01-03T14:55:12Z")
Or rebuild motor? It was quiet when new, so it’s not a design issue? ---
**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:** [January 3, 2021, 3:55pm UTC](https://community.cartalk.com/t/engine-knocking-when-its-cold/173784/13 "2021-01-03T15:55:22Z")
Put in another engine. ---
**Author:** ![MikeInNH](https://avatars.discourse-cdn.com/v4/letter/m/a587f6/32.png) [@MikeInNH](https://community.cartalk.com/u/MikeInNH)\ **Post date:** [January 3, 2021, 4:32pm UTC](https://community.cartalk.com/t/engine-knocking-when-its-cold/173784/14 "2021-01-03T16:32:13Z")
> [@old\_mopar\_guy](#): > > Put in another engine. On a 14yo vehicle? Really? ---
**Author:** ![shanonia](https://avatars.discourse-cdn.com/v4/letter/s/9de053/32.png) [@shanonia](https://community.cartalk.com/u/shanonia)\ **Post date:** [January 3, 2021, 5:17pm UTC](https://community.cartalk.com/t/engine-knocking-when-its-cold/173784/15 "2021-01-03T17:17:55Z")
> [@ate6810\_173233](#): > > I have this car for 4 years with this engine behavior That suggests it can go another 4 years or more - that this noise is not a sign of imminent demise. I’d keep the oil level up and maybe try a different oil filter next time but decide not to worry about this. ---
**Author:** ![ok4450](https://avatars.discourse-cdn.com/v4/letter/o/e9bcb4/32.png) [@ok4450](https://community.cartalk.com/u/ok4450)\ **Post date:** [January 3, 2021, 6:27pm UTC](https://community.cartalk.com/t/engine-knocking-when-its-cold/173784/16 "2021-01-03T18:27:44Z")
The link did not work for me. Oil pump, plugs, and fuel filter an obvious mistake when trying to cure a noise. I suspect the noise is in the top end; meaning a cam follower. The problem with allowing it to go on for 4 years could well mean it has created more damage. as in damaged cam lobes, and so on. If the car were mine the valve cover(s) would have to come off for an inspection. ---
**Author:** ![Rod-Knox](https://avatars.discourse-cdn.com/v4/letter/r/a183cd/32.png) [@Rod-Knox](https://community.cartalk.com/u/Rod-Knox)\ **Post date:** [January 3, 2021, 9:32pm UTC](https://community.cartalk.com/t/engine-knocking-when-its-cold/173784/17 "2021-01-03T21:32:51Z")
If you’re not expecting the temperature to drop below 40\* before the next oil change add a can of STP and see if it helps. ---
**Author:** ![db4690](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/db4690/32/2583_2.png) [@db4690](https://community.cartalk.com/u/db4690)\ **Post date:** [January 3, 2021, 9:51pm UTC](https://community.cartalk.com/t/engine-knocking-when-its-cold/173784/18 "2021-01-03T21:51:24Z")
![image](https://global.discourse-cdn.com/cartalk/original/3X/0/b/0baab4cea2d916e6e014572e62e0f01cc55f8e5a.jpeg) ---
**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:** [January 3, 2021, 10:27pm UTC](https://community.cartalk.com/t/engine-knocking-when-its-cold/173784/20 "2021-01-03T22:27:47Z")
Some sodium silicate added to the crankcase would quiet that engine forever. ---
**Author:** ![ate6810\_173233](https://avatars.discourse-cdn.com/v4/letter/a/ecc23a/32.png) [@ate6810\_173233](https://community.cartalk.com/u/ate6810_173233)\ **Post date:** [January 4, 2021, 5:33am UTC](https://community.cartalk.com/t/engine-knocking-when-its-cold/173784/21 "2021-01-04T05:33:23Z")
I uploaded again. Please take a look at this video [https://mega.nz/file/RypUyRAR#avusz5ZkrI\_6tWK1pQim0TbwiJDb1i4otIPAT3cMODY](https://mega.nz/file/RypUyRAR#avusz5ZkrI_6tWK1pQim0TbwiJDb1i4otIPAT3cMODY) [Next page](https://community.cartalk.com/t/engine-knocking-when-its-cold/173784.md?page=2)