engine noise for 07 gs

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May 15, 2010 | 07:01 AM

jimmv28

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From: nj

engine noise for 07 gs

im not sure if it is normal, but just got my gs used at 68K miles. there are louder engine noise when you first start the car. took it to lexus they said it is normal. anyone have the same problems. i thought it was the higher milage.

May 15, 2010 | 07:02 AM

designo

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From: Bahrain

Which GS model is this?

May 15, 2010 | 08:13 AM

TWong350

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Which model and is it a ticking or loud clanking that goes away in a few seconds?

May 15, 2010 | 10:19 AM

I8ABMR

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From: Waiting for next track day

Mine does the same thing

May 15, 2010 | 01:03 PM

jimmv28

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From: nj

it is the 07 gs 350. i heard it it the direct fuel injection. very uncomfortable.

May 15, 2010 | 01:17 PM

CAK 500

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From: NC

The V6 engine uses a high pressure fuel injection pump that produces a sound kinda like what you describe. You get used to it, and it's hardly noticeable inside the car.

May 15, 2010 | 01:36 PM

ivanz

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From: Vancouver, BC

What exactly do you mean by "when you first start the car"? Like the second after it starts or the first few minutes? Does it sound like metal on metal grinding or just like a diesel engine?

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May 16, 2010 | 08:58 AM

jimmv28

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From: nj

more like diesel engine. and also when you have the ac unit up high the engines really roars when you stand outside of the car. is that normal. my friends notice the engine sound and tell me to let lexus checked it out. i did and they said it is normal. i don't know. Does anyone knows the benefit of the direct fuel injection as to the regular from the older GS?

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May 16, 2010 | 12:59 PM

ivanz

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From: Vancouver, BC

Yes, both are 100% normal. DI gasoline engines sound similar to diesel engines because they both use high pressure injectors.
As for A/C, yes that's normal for any car. If your cars idle wasn't increased when the compressor was engaged, it would stall the engine due to the extra load.