- #641 of 707
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Re: Idiotic Backup Sensor [caseyjay_48]
by skytop1
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Aug 20, 2007 (12:22 pm)
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Replying to: caseyjay_48 (Aug 20, 2007 9:33 am)
My backup sensor system only works intermittantly. What you say is totally accurate. It is a very poorly conceived and miserably executed backup warning system.
I have to wonder if anyone at GM even had the brains to try this terrible system out before approving it for production. Makes me wonder about a lot more concerning GM's weak ability to design vehicles.
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- #642 of 707
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Re: Idiotic Backup Sensor [caseyjay_48]
by schlog
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Aug 20, 2007 (5:31 pm)
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Replying to: caseyjay_48 (Aug 20, 2007 9:33 am)
Congratulations on your new truck and sorry your not happy with the Forewarn system, but I think I can help. First off, I would advise reading the 3 or 4 pages in the owners manual regarding the system limitations/options, as it does have the option to turn off the audible alarm which operates through your stereo speakers. In my owners manual this system begins explanation on page 230. It took me about 15 minutes of playing around in my driveway to understand the functionality of the system, I now feel very confident in using it and have utmost confidence in it.
 Schlog
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- #643 of 707
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What would be easier would be to
by obyone
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Aug 20, 2007 (6:05 pm)
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replace that cheap system with one that employs a color camera and monitor. Aftermarket is always better than stock. 
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- #644 of 707
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Re: Idiotic Backup Sensor [caseyjay_48]
by 101medic
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Aug 21, 2007 (4:49 am)
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Replying to: caseyjay_48 (Aug 20, 2007 9:33 am)
Sounds like you have a faulty one...the sensor on mine works just fine...take it to your dealer.
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- #645 of 707
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Re: look for better gas milage [skytop1]
by 2007denali
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Aug 21, 2007 (6:33 am)
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Replying to: skytop1 (Jul 22, 2007 5:06 am)
I was able to get 16 mpg on a mostly highway trip in my Denali, but around town I get a lot closer to 10.5 mpg. 11.5 mpg if I baby it. I'm using 87 octane, not the premium fuel...although the fuel door says premium only, everything seems okay with 87 octane. I've read several articles on the Internet that claim using premium fuel is like throwing money away. Any thoughts?
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- #646 of 707
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Re: look for better gas milage [2007denali]
by skytop1
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Aug 21, 2007 (8:35 am)
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Replying to: 2007denali (Aug 21, 2007 6:33 am)
According to ABC news, about 40% of the time you select high test you don't really get high test. Stations routinely run medium or low test through the high test pumps.
Out West, premium is only 91 octane whereas out East, premium is 93 octane. Current vehicles have the ability to adjust their timing to cope with varying octane ratings from a low of 87 to a high of 93+.
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- #647 of 707
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Re: look for better gas milage [2007denali]
by obyone
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Aug 21, 2007 (11:26 am)
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Replying to: 2007denali (Aug 21, 2007 6:33 am)
If the door say premium, why would you run 87? To save a few bucks?
While your knock sensors "should" take care of any knock a good question would be if there ever is some damage due to knock would it be covered under warranty. I'm sure a GM dealer would use it as an opportunity to deny warranty coverage as skytop1 would probably agree.
A nickle here and a dime saved there might cost you more in the long run. Course as always the choice is yours.
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- #648 of 707
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Re: Idiotic Backup Sensor [schlog]
by caseyjay_48
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Aug 21, 2007 (11:27 am)
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Replying to: schlog (Aug 20, 2007 5:31 pm)
Thanks for all of the replies on the backup sensor. I know that the sound can be turned off. The problem is that the sound only goes off once; when an obstacle is first detected. After that one sound, there are no more sounds made as you get closer, only an increasing number of amber lights in the back window. Since you must be looking rearward to see the lights, you cannot look to the right and left to see your mirrors. It should be a constant audible warning. I may replace this with an after market and send the factory one to Chevy in Detroit (Collect!!!)
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- #649 of 707
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Re: Idiotic Backup Sensor [caseyjay_48]
by schlog
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Aug 21, 2007 (4:09 pm)
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Replying to: caseyjay_48 (Aug 21, 2007 11:27 am)
The system in my truck works just as the sales guy explained to me in the showroom, it is always good to get a full understanding of what you are buying before you pay for it. Sure it takes a little trial and error to get the full benefit of the system and also understand its limitations. As the manual states, any object lower than 10 inches will fall outside it's ability to sense. It is important that we all read and put to use some good practice before criticizing something we do not fully understand. I think this forum and certainly SOME particular individuals (not you) are using this forum with an alternative objective, one that does not serve any of us here looking to learn about the new Silverado. That is unfortunate, and tiresome. It is amazing that one particular (possible) owner of the GMT 900 platform has experienced every incomprehensible failure one could dream of, including the unlatching of the hood with his foot going 65 mph. His steering column swings back and forth and he cannot see out the front window as the A-pillar is too wide, and on and on and on. Is it just me that is a little more than curious about the validity of the mole in the room working for say, a Japanese competitor? My doubt's are exceedingly high. Unfortunate, because this is a nice forum for sharing information, which leaves it open to abuse.
Schlog 
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- #650 of 707
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In Agreement
by lionclawz
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Aug 27, 2007 (7:13 pm)
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Well Stated Schlog!!!! your I pretty much said the same thing about a month ago and almost got booted from this site.
...........On to my '07 Silverado
Problems I ham currently experiencing are;
1. Drivers side airbag produced a malfunction message.
2. Front passenger side wheel sometimes produces a low air message, but there is no air leak of any sort.
Both issues are being addressed this saturday under warranty coverage. Otherwise This truck has had a new AEM brute air intake added, fantastic responsivness. Line-X spray bedliner, still working on deciding which brand locking bedcover to acquire. I am also looking to install new stepbars - Im tending to like the GM accessory on that decision, just searching for a decent nondealer price break.
Just came back from a 7 1/2 hour nonstop trip from KY to MD, and this truck was simply powerful, from uphill shifting (4 shift is smooth and even) to down hill solid braking. Extrmely impressed with how this truck handles. Also the interior is always spacious and comfortable (LTZ) (no leg cramps) although my wife putting her feet up to the right hand corner of the window/door jamb inadvertantly tripped the heated seats button on the door manifested a funny scene to behold.
No complaints so far!
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