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Buick Rainier, Chevy TrailBlazer, GMC Envoy

18177 messages,  Last post on Sep 22, 2008 at 10:01 AM

You are in the Buick Rainier Forum. Your Hosts are steve_ & tidester

What is this discussion about? Chevrolet TrailBlazer, GMC Envoy, Buick Rainier, GMC Envoy XL, Isuzu Ascender, Oldsmobile Bravada, SUV


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#15678 of 18177
Wind Noise by n7don
Dec 16, 2004 (4:26 pm)
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There's been several comments concerning wind noise. Found this info on the Dec Techlink. Haven't had a change to evaluate how/if it helps on earlier model years:
 
"Some customers may comment about wind noise generated by the presence of roof rack cross rails on 2005 Trailblazer/Trailblazer EXT, GMC Envoy/Envoy XL/Envoy XUV, and Buick Rainier. The disturbance becomes more noticeable if the cross rails are placed in positions over the driver and passenger seating areas.
 
The optimal locations of the cross rails to minimize wind disturbance are:
- front cross rail in line with the rear edge of the rear door
- rear cross rail 2 inches (5 cm) forward of the rear edge of the side rail."
#15679 of 18177
Re: Radio Woes and Great Deal on Tires [joeyeoj] by tmarkb2
Dec 16, 2004 (7:24 pm)
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Replying to: joeyeoj (Dec 15, 2004 5:54 pm)

Thanks for the tip. I set the radio to "AF Off" this afternoon and haven't heard it cut out (much more prevalent) or hop stations yet. Maybe that did it!
 
Thanks again joeyeoj.
#15680 of 18177
Re: Radio Woes and Great Deal on Tires [raleigh] by tmarkb2
Dec 16, 2004 (8:05 pm)
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Replying to: raleigh (Dec 15, 2004 9:57 pm)

I replaced the OE Cross Terrains at 500 miles. Hated them, see my comments at posting 14850.
 
I've been told I have a somewhat unorthodox driving style. Must be the ten plus years racing sports cars! Anyway, my 2WD Envoy is set up for optimum handling on pavement. Eibachs, Hotchkis kit, Bilstein upgrades and the Comp T/A HR4s. I never go off road and we seldom get bad winters so they are perfect for me.
 
Tirerack.com said the Comp T/A HR4s have been discontinued so that explains the low cost. Since I'm keeping the Envoy until after my 10 year old son takes it to college (after his 13 year old sister takes it to college), I'm seriously considering getting yet another set and moth balling them!
#15681 of 18177
Re: Wind Noise [n7don] by 01_hoe
Dec 16, 2004 (10:10 pm)
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Replying to: n7don (Dec 16, 2004 4:26 pm)

Or they can remove both cross rails in 10 minutes or less...
#15682 of 18177
Radio "AF" explained by seiford
Dec 17, 2004 (5:27 am)
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Here's an excerpt from the Owner's Manual regarding the radio "AF" feature:
 
AM FM (Alternate Frequency): Alternate frequency allows the radio to switch to a stronger station with the same program type. Press and hold the AM FM for two seconds to turn alternate frequency on. AF ON will appear on the display. The radio may switch to stronger stations. Press and hold AM FM for two seconds to turn alternate frequency off. AF OFF will appear on the display. The radio will not switch to other stations. When you turn the ignition off and then on again, the alternate frequency feature will automatically be turned on.
#15683 of 18177
Re: Wind Noise [n7don] by 01_hoe by previousamigo
Dec 17, 2004 (8:31 am)
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And remove the side rails after you take off the cross bars. I put the same black screws in with some silicon and painted pewter with dealer touch up paint. I have never used the top racks and instead use the hitch mount for the very few occasions i have too much to fit inside.
#15684 of 18177
Re: Wind Noise [n7don] by 01_hoe [previousamigo] by n7don
Dec 19, 2004 (5:43 am)
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Replying to: previousamigo (Dec 17, 2004 8:31 am)

I actually use the side rails to attach a car-top carrier. However I made the cross bars from box tubing. In any case, I found moving the OE cross bars to the rear edge of the rear door had no effect on wind noise. Customers must still be complaining about wind noise in the '05s.
#15685 of 18177
Re: Wind Noise and roof rack by tblazed
Dec 19, 2004 (10:03 am)
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When I still had mine on, I tried the cross rails all the way forward, back, different points in-between, and positioned exactly the way GM says to put them in the bulletin, and I never noticed any significant reduction or difference in the wind noise. Majority of the wind noise on mine comes from air turbulance around the A-pillars and mirrors. Even with the roof rack completely off there's really little or no difference that I can tell.
 
Taking of the roof rack DID make it a whole lot easier to wash and dry off the roof without water running out under the side rails down the windows etc., messing up my wash job. Used to use compressed air to blow out all the residual water under the side rails.
#15686 of 18177
Tire size by bobfish
Dec 19, 2004 (1:39 pm)
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Would like to put 265-75/17 inch tires on my 04 envoy,how much of an effect would that have on the speedometer and would it effect the handling,I installed a Hotchkis rear sway bar?
#15687 of 18177
Re: Tire size [bobfish] by cmr239
Dec 19, 2004 (7:18 pm)
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Replying to: bobfish (Dec 19, 2004 1:39 pm)

Quick math says that your speedo will be about 10% off (60 mph reading will be 66 to 67 mph)with the big tires. I have a 04 Envoy XUV that drags it's belly a lot, so I am very interested in some larger tire. I just don't think we can go that large. Stock 245/65's are about 29.6 inch diameter. 265/75's are about 32.6 diameter. Very large step. I hope you know something that I don't, 'cause I would love to get that much extra ground clearance. I hope you prove me VERY wrong!

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