Strange sounds from my Sportcross - Lexus IS Forum
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post #1 of 8 (permalink) Old 03-19-2018, 08:01 PM Thread Starter
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Strange sounds from my Sportcross

Is anyone still hanging around this forum?

My Sportcross is sounding a bit unusual. It has gotten loud and has developed somewhat of a miss at idle.

Video here: https://photos.app.goo.gl/QGh1u0kSNRD3K2fm2

Any ideas?

16 RX450h F-Sport
13 MKZ hybrid
13 S6 APR downpipes/Stage 2 ECU/TCU
08 911 turbo cabriolet, Champion, Cobb, Fabspeed, FVD, Kline 6MT
08 GX470 Sport
04 IS300 Sportcross under construction..........
93 MR2 gen3 3sgte, t3/t4, 264s, AEM, 5MT
02 Honda VFR800 6MT
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post #2 of 8 (permalink) Old 03-20-2018, 05:06 AM
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Sounds like an exhaust leak. Check your manifold flanges.
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post #3 of 8 (permalink) Old 03-20-2018, 02:31 PM
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yeah that doesn't sound good (well actually that sounds amazing haha). Any CELs? What happens at higher RPMs or while driving?
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post #4 of 8 (permalink) Old 03-24-2018, 05:05 PM
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Sounds like a swap with big cams to me

2001 IS300 (current car)

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post #5 of 8 (permalink) Old 03-25-2018, 11:36 AM Thread Starter
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Quote:
Originally Posted by 01 SolarYellow View Post
Sounds like an exhaust leak. Check your manifold flanges.
Do you think my manifold might be in danger?


Quote:
Originally Posted by TobiasSing View Post
yeah that doesn't sound good (well actually that sounds amazing haha). Any CELs? What happens at higher RPMs or while driving?
At higher rpms it gets louder and spins the tires.
No CEL, but I did get this warning

01 SolarYellow might be on to something.


Quote:
Originally Posted by SFis300 View Post
Sounds like a swap with big cams to me
Well actually only 1 cam

16 RX450h F-Sport
13 MKZ hybrid
13 S6 APR downpipes/Stage 2 ECU/TCU
08 911 turbo cabriolet, Champion, Cobb, Fabspeed, FVD, Kline 6MT
08 GX470 Sport
04 IS300 Sportcross under construction..........
93 MR2 gen3 3sgte, t3/t4, 264s, AEM, 5MT
02 Honda VFR800 6MT

Last edited by vman932; 03-25-2018 at 05:14 PM. Reason: fixed image link
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post #6 of 8 (permalink) Old 03-25-2018, 04:28 PM
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[QUOTE=vman932;8293217]Do you think my manifold might be in danger?
Listen here newbie. It may be as simple as lose or bolts that came out. It will not tell you what you need to do. Asking more without looking will not help you.
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post #7 of 8 (permalink) Old 03-25-2018, 06:03 PM Thread Starter
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Quote:
Originally Posted by vman932 View Post
Do you think my manifold might be in danger?
Quote:
Originally Posted by 01 SolarYellow View Post
Listen here newbie. It may be as simple as lose or bolts that came out. It will not tell you what you need to do. Asking more without looking will not help you.
Oh my, are you serious? If so, take it easy, it's the internet.

I'm not sure which is more comical, you calling me a newbie (I've been here since January of 2008 - 2 years and 11 months before you), or your attempt diagnose my "problem". I thought your first post might be in jest, but you have now made it abundantly clear it was not. Put down the shovel, you are already in pretty deep.

16 RX450h F-Sport
13 MKZ hybrid
13 S6 APR downpipes/Stage 2 ECU/TCU
08 911 turbo cabriolet, Champion, Cobb, Fabspeed, FVD, Kline 6MT
08 GX470 Sport
04 IS300 Sportcross under construction..........
93 MR2 gen3 3sgte, t3/t4, 264s, AEM, 5MT
02 Honda VFR800 6MT
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post #8 of 8 (permalink) Old 03-26-2018, 01:40 PM
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Quote:
Originally Posted by vman932 View Post
Oh my, are you serious? If so, take it easy, it's the internet.

I'm not sure which is more comical, you calling me a newbie (I've been here since January of 2008 - 2 years and 11 months before you), or your attempt diagnose my "problem". I thought your first post might be in jest, but you have now made it abundantly clear it was not. Put down the shovel, you are already in pretty deep.
Sorry if I responded when he did not have his post edited correctly for me to see.

"Last edited by vman932; Yesterday at 07:14 PM. Reason: fixed image link "
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