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Buick LaCrosse

2281 messages,  Last post on Oct 16, 2009 at 4:11 PM

You are in the Buick LaCrosse Forum. Your Hosts are pat & karens

What is this discussion about? Buick LaCrosse, Sedan


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#2252 of 2281
Re: whinning sound from engine bay [kairns] by neshapop
Aug 19, 2008 (5:01 am)
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Replying to: kairns (Jul 08, 2008 4:01 am)

Mine too, MY2005 CX with 37M or 57K. It would sound like that with the same symptoms, strangely I started to get low oil message from my DIC. The level was below minimum after 3000 miles and oil life was 55%?
  
Took it to the dealer while the car is still under the warranty, does not look good to me. Service advisor blamed me for following Oil Life System instead 3000 miles schedule!?! So GM got it wrong with OLS, according to their Good Wrench web page oil should be OK for 4000-7000 miles. Mine is below level after 3K.
#2253 of 2281
Re: whinning sound from engine bay [neshapop] by 62vetteefp
Aug 19, 2008 (6:07 am)
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Replying to: neshapop (Aug 19, 2008 5:01 am)

Service advisor blamed me for following Oil Life System instead 3000 miles schedule!?!
 
Do not listen to him. Changing oil at 3000 miles is a waste of your money and oil. Remember the dealers are independent from the OEM (GM in this case) and want the service dollars.
 
Now, not sure why you have low oil but oil life system has nothing to do with oil level. The oil that is left is perfectly good for another 3000 miles or so (oil life said 55%). Need to figure out why oil was low. Could have been as simple as there was not enough oil put in at last change to something mechanical.
 
Bottom line is you got it in under warranty and do not le the dealer blame the not changing of oil as a reason for not fixing it.
#2254 of 2281
Re: whinning sound from engine bay [kairns] by lacrossesoaked
Aug 19, 2008 (8:05 am)
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Replying to: kairns (Jul 08, 2008 4:01 am)

I have a 2005 LaCrosse CXS and I have noticed the same whinning sound. I have been ignoring it. Did you discover the source/problem?
#2255 of 2281
Re: whinning sound from engine bay [62vetteefp] by neshapop
Aug 19, 2008 (9:16 am)
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Replying to: 62vetteefp (Aug 19, 2008 6:07 am)

Thanks for your reply,
 
That's exactly what I told them (I followed GM recommended oil care with OLS), they topped up oil level and now less than 1000 miles later is 3/8 above minimum level already. There is no signs of oil under the car, not a single drop. It is just burning oil...I used to add a quart between oil changes (6K) until the last one. Now it seems quite serious.
#2256 of 2281
Re: whinning sound from engine bay [neshapop] by 62vetteefp
Aug 19, 2008 (10:09 am)
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Replying to: neshapop (Aug 19, 2008 9:16 am)

Yep, sounds like you need to get it fixed.
#2257 of 2281
Idling Issue by dcs67
Aug 19, 2008 (7:53 pm)
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I have a 2007 LaCrosse which has a standing idle of around 750 RPM. However, after accelerating over 25 mph, when I back off the accelerator, the engine returns to idle at about 1000 rpm. When I complained to the dealer, he said there is nothing wrong and that the idle settings are set at the factory. We test drove a different LaCrosse and after accelerating it returned to idle at 750 rpm so this is an issue peculiar to my car. I was wondering if anyone else had this problem. Also, my guess is that there must be some sort of idle control chip that regulates the idle which Buick should be able to replace. The dealer said that it cannot be done. Does anyone know if it is possible and how difficult it would be to replace whatever computer component regulates idle? I feel as if Buick is discounting my concerns over what to me is a safety issue since the increased idle is unexpected and requires additional braking pressure.
 
Thanks.
#2258 of 2281
Re: Idling Issue [dcs67] by 62vetteefp
Aug 20, 2008 (3:43 am)
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Replying to: dcs67 (Aug 19, 2008 7:53 pm)

Not as simple as a chip. It is all computerized and I doubt if you have something wrong with the software. Most likely one of the sensors is inaccurate or something mechanical is hanging up.
 
To be honest 750 vs. 1000 idle sure is not much. Amazed it was noticable.
 
Anyway the dealerships are independent from Buick. Go to another dealer.
#2259 of 2281
Re: whinning sound from engine bay [lacrossesoaked] by kairns
Sep 03, 2008 (4:03 am)
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Replying to: lacrossesoaked (Aug 19, 2008 8:05 am)

Yes...the whinning sound was due to my power steering resevoir being low on fluid. I was told this is a standard problem on most GM front wheel drive products. The seals start to "weep" slowly and due to the placement of the PS resevoir, not too many people tend to check the fluid level. It's not topped up and the whinning sound has disappeared.
#2260 of 2281
Re: whinning sound from engine bay [kairns] by lacrossesoaked
Sep 03, 2008 (6:54 am)
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Replying to: kairns (Sep 03, 2008 4:03 am)

OK, I will check the fluid level and for the sake of other forum users, I will post what I find out. Thanks very much !
#2261 of 2281
Re: whinning sound from engine bay [lacrossesoaked] by hitman1970
Sep 04, 2008 (2:14 pm)
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Replying to: lacrossesoaked (Sep 03, 2008 6:54 am)

I had this slight whirring sound on accleration in my 2006 CXS. When I check my power steering level with a hot engine, the fluid was just at the minimum level. The owner's manual states that it should be at Max with a hot engine and at Min with a cold engine. I added Power Steering Fluid and the sound went away. Thanks for the advice.

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