# 2004 Lexus ES 330 - is engine non interference? **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** es330, lexus\ **Created:** [October 20, 2020, 1:07pm UTC](https://community.cartalk.com/t/2004-lexus-es-330-is-engine-non-interference/171391 "2020-10-20T13:07:48Z")\ **Posts on this page:** 17\ **Page:** 1
**Author:** ![DianeCosta](https://avatars.discourse-cdn.com/v4/letter/d/b38774/32.png) [@DianeCosta](https://community.cartalk.com/u/DianeCosta)\ **Post date:** [October 20, 2020, 1:07pm UTC](https://community.cartalk.com/t/2004-lexus-es-330-is-engine-non-interference/171391/1 "2020-10-20T13:07:48Z")
My Lexus has a 3.3L v6 engine. Does it have a non-interference engine? ---
**Author:** ![davepsinbox\_157004](https://avatars.discourse-cdn.com/v4/letter/d/73ab20/32.png) [@davepsinbox\_157004](https://community.cartalk.com/u/davepsinbox_157004)\ **Post date:** [October 20, 2020, 10:47pm UTC](https://community.cartalk.com/t/2004-lexus-es-330-is-engine-non-interference/171391/2 "2020-10-20T22:47:40Z")
According to this site it’s noninterference: [http://yourcarangel.com/2014/07/interference-engines-complete-list/](http://yourcarangel.com/2014/07/interference-engines-complete-list/) ---
**Author:** ![DianeCosta](https://avatars.discourse-cdn.com/v4/letter/d/b38774/32.png) [@DianeCosta](https://community.cartalk.com/u/DianeCosta)\ **Post date:** [October 20, 2020, 11:38pm UTC](https://community.cartalk.com/t/2004-lexus-es-330-is-engine-non-interference/171391/3 "2020-10-20T23:38:37Z")
Thanks for your reply. I’m going to try to find the car angel’s source of his information. I appreciate your help. Diane ---
**Author:** ![texases](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/texases/32/862_2.png) [@texases](https://community.cartalk.com/u/texases)\ **Post date:** [October 22, 2020, 4:01am UTC](https://community.cartalk.com/t/2004-lexus-es-330-is-engine-non-interference/171391/4 "2020-10-22T04:01:49Z")
Why do you ask? ---
**Author:** ![bcohen2010](https://avatars.discourse-cdn.com/v4/letter/b/779978/32.png) [@bcohen2010](https://community.cartalk.com/u/bcohen2010)\ **Post date:** [October 22, 2020, 5:00am UTC](https://community.cartalk.com/t/2004-lexus-es-330-is-engine-non-interference/171391/5 "2020-10-22T05:00:35Z")
> [@texases](#): > > Why do you ask? I assume, either the timing belt has failed, or the owner wishes to know if he can delay doing this expensive maintenance without having to worry about costly engine damage. ---
**Author:** ![DianeCosta](https://avatars.discourse-cdn.com/v4/letter/d/b38774/32.png) [@DianeCosta](https://community.cartalk.com/u/DianeCosta)\ **Post date:** [October 22, 2020, 12:11pm UTC](https://community.cartalk.com/t/2004-lexus-es-330-is-engine-non-interference/171391/6 "2020-10-22T12:11:28Z")
The owner would like to delay changing the timing belt without having to worry about damaging his engine. ---
**Author:** ![DianeCosta](https://avatars.discourse-cdn.com/v4/letter/d/b38774/32.png) [@DianeCosta](https://community.cartalk.com/u/DianeCosta)\ **Post date:** [October 22, 2020, 12:24pm UTC](https://community.cartalk.com/t/2004-lexus-es-330-is-engine-non-interference/171391/7 "2020-10-22T12:24:42Z")
The car’s owner would like to delay replacing the timing belt without having to worry about costly engine damage. ---
**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:** [October 22, 2020, 1:10pm UTC](https://community.cartalk.com/t/2004-lexus-es-330-is-engine-non-interference/171391/8 "2020-10-22T13:10:41Z")
Diane , if that belt breaks it will not be in your own driveway. It will be some place inconvenient , a place where you might not want to be or while you are turning left in front of a large truck. Replace it now. Even if you use your credit card the interest might be less than a towing charge. ---
**Author:** ![DianeCosta](https://avatars.discourse-cdn.com/v4/letter/d/b38774/32.png) [@DianeCosta](https://community.cartalk.com/u/DianeCosta)\ **Post date:** [October 22, 2020, 1:20pm UTC](https://community.cartalk.com/t/2004-lexus-es-330-is-engine-non-interference/171391/9 "2020-10-22T13:20:24Z")
You are right about that. You make a persuasive case for going ahead and getting it done. Thank you. ---
**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:** [October 22, 2020, 3:19pm UTC](https://community.cartalk.com/t/2004-lexus-es-330-is-engine-non-interference/171391/10 "2020-10-22T15:19:54Z")
> [@VOLVO-V70](#): > > if that belt breaks it will not be in your own driveway. It will be some place inconvenient , a place where you might not want to be or while you are turning left in front of a large truck. +1 For reasons that I will never understand, many people seem to have the bizarre notion that mechanical breakdowns will always take place in their own driveway, or some other location that is both safe and convenient. ---
**Author:** ![ok4450](https://avatars.discourse-cdn.com/v4/letter/o/e9bcb4/32.png) [@ok4450](https://community.cartalk.com/u/ok4450)\ **Post date:** [October 22, 2020, 5:00pm UTC](https://community.cartalk.com/t/2004-lexus-es-330-is-engine-non-interference/171391/11 "2020-10-22T17:00:08Z")
And misinformation from parts suppliers does not help things either. This bogus info is from partsgeek…cut and pasted below. The inference of course is that you have an advance warning. When your timing belt is giving out, your engine will begin to misfire. You may hear high-pitched noises coming from your engine, which is an indication that your timing belt is loose. Your engine will idle roughly, your emissions will increase and your gas mileage will go down. ---
**Author:** ![edb1961](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/edb1961/32/122_2.png) [@edb1961](https://community.cartalk.com/u/edb1961)\ **Post date:** [October 22, 2020, 7:20pm UTC](https://community.cartalk.com/t/2004-lexus-es-330-is-engine-non-interference/171391/12 "2020-10-22T19:20:11Z")
The change interval on my 2006 Sienna with the 3.3 V6 is 7yr/90k miles. If you have never changed the belt you are 9 years overdue, that’s kind of pushing it. Ed B ---
**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:** [October 22, 2020, 11:11pm UTC](https://community.cartalk.com/t/2004-lexus-es-330-is-engine-non-interference/171391/13 "2020-10-22T23:11:58Z")
According to [Gates.com](http://Gates.com) ( the largest timing belt manufacturer, the 3.3 litre V6 is non interference. ---
**Author:** ![davepsinbox\_157004](https://avatars.discourse-cdn.com/v4/letter/d/73ab20/32.png) [@davepsinbox\_157004](https://community.cartalk.com/u/davepsinbox_157004)\ **Post date:** [October 23, 2020, 6:34pm UTC](https://community.cartalk.com/t/2004-lexus-es-330-is-engine-non-interference/171391/14 "2020-10-23T18:34:11Z")
Unlike some other posters I won’t be judgmental. The difference is that with a noninterference engine a broken timing belt is usually an inconvenience (sometimes major) while with an interference engine it’s an expensive calamity. ---
**Author:** ![DianeCosta](https://avatars.discourse-cdn.com/v4/letter/d/b38774/32.png) [@DianeCosta](https://community.cartalk.com/u/DianeCosta)\ **Post date:** [October 23, 2020, 7:32pm UTC](https://community.cartalk.com/t/2004-lexus-es-330-is-engine-non-interference/171391/15 "2020-10-23T19:32:32Z")
I appreciate your sticking to the facts. Thanks for your input. ---
**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:** [October 23, 2020, 8:40pm UTC](https://community.cartalk.com/t/2004-lexus-es-330-is-engine-non-interference/171391/16 "2020-10-23T20:40:42Z")
> [@davepsinbox\_157004](#): > > Unlike some other posters I won’t be judgmental And who do you think is being judgmental ? ---
**Author:** ![davepsinbox\_157004](https://avatars.discourse-cdn.com/v4/letter/d/73ab20/32.png) [@davepsinbox\_157004](https://community.cartalk.com/u/davepsinbox_157004)\ **Post date:** [October 23, 2020, 10:07pm UTC](https://community.cartalk.com/t/2004-lexus-es-330-is-engine-non-interference/171391/17 "2020-10-23T22:07:32Z")
> [@VOLVO-V70](#): > > And who do you think is being judgmental ? You’re kidding, right?