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SUVs GMC Yukon GMC Yukon / Yukon Denali
3260 messages, Last post on Apr 28, 2009 at 7:02 AM
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Replying to: akao1029 (Jul 29, 2005 7:54 pm) In any case, on '03+ GM (re?)introduced the DIC and placed (relocated?) its display right underneath the drive selector indicator in the lower center of the gauge cluster; '03 and '04 included average and instant (i.e., real-time) mpg readings, and range (i.e., estimated miles remaining until empty). IIRC in '05 GM took away the instant mpg readout from the DIC, among other things (don't know if they took away all fuel economy readouts but I do know they definitely took away the instant one). |
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I just finally had this fixed. Dealer cleaned the throttle body and mass air flow sensor screen. They also cleaned the fuel injectors. I have 68K on mine. This did it before and another dealer replaced the throttle body. A little preventative maintenance is worth it. Does running a K&N filter add to the carbon/oil build up? Dealer seemed to think so.
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Replying to: mjwills (Aug 03, 2005 12:33 pm) |
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2005 Denali is only getting a little over 8 miles to the gallon. Seems like we live at the gas station. Our GM dealership replaced the fuel filter recently but fuel mileage isn't any better. We took it back to the shop yesterday and they said they drove it and they got 17 miles to the gallon, plus their computer confirmed it. They said they can't find anything else wrong. We know they think we are crazy but we have been keeping track of ALL mileage. Has anyone had similar problems or are there any suggestions...besides trading it off?!
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Replying to: fuelforthought (Aug 04, 2005 7:00 am) How many miles did they drive in order to get that 17 mpg reading? I reckon they must have gone onto the freeway or some other road where they could drive it at freeway speeds, as it is practically impossible to average 17 in city driving, at city speeds...well, not entirely impossible--one could "coast" down a city street at 45 mph for a mile and probably get a 17 mpg readout. 
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Replying to: fireman3 (Jul 15, 2005 5:45 am) Turned out to be some metal shavings in the Blinker switch on the column. I believe it was caused by me not engaging the blinker fully when passing a car and only pushing on it slightly enough to get the blinker to blink. It was not an easy task to take apart and clean out the shavings with a pocket knife but it did work. When you get it apart you should be able to see the arcing across the contacts causing the module to make a clicking sound. It did not turn on the lights because of the additional circuitry that was not made. |
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Replying to: cornellpinoy (May 09, 2005 5:20 pm) |
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I have 22's on my 05 denali and the tire pressure reads 0 on 3 wheels and just has a dash on the 4th. The dealer told me that the sensors were not at the right angle on the American Racing wheels. I called them on it and they printed off an " internal service alert". It basically said that there were problems with aftermarket wheels that did not have the right degree of angles to bring the sensors out of standby mode. Is this the real deal or are they just BSing me? Thanks
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Replying to: tongslinger (Aug 12, 2005 9:53 pm) The tire pressure sensor in my 2004 Tahoe has a small rattling ball or something inside that moves around with tire vibration. You can hear it if you shake the sensor in your hand. You could argue that the re-charge does not happen if the sensor is mounted in a wrong angle. Perhaps, but a failed sensor (no power in battery or otherwise broken) should give you an alarm on the dash. It should have the alarm light ON that indicates a system problem. This is different than alarm for low pressure. Of course the new system in '05 Denali can be different and show zero pressure even when the sensor is dead but I would highly doubt that. It could also be that the one having a dash is not working at all and the others take a zero reading until all sensors work. 22" wheels did not come with the truck so were you present when they were put on? If the tire guys broke one sensor and didn't even tell you? It breaks easily if you don't know about it when taking the tire off or it breaks when putting a new tire on if you don't know how to do it right. This happened to me once. If a sensor is replaced the system must be 'trained' for it. This will not work before the new sensor is charged. It takes a couple of miles to drive with the new sensor to have its battery charged or you can shake it in your hand for a few minutes before it is installed in the rim. You should have instructions in your owners manual of the procedure how to teach the system all the sensors. My guess is that one of your sensors is broken or missing or is in the wheel but the system was newer set-up correctly for it. --Arrie--
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Replying to: arrie (Aug 13, 2005 4:59 pm) There is a message that comes on my DIC that says "check tire pressure". I assume that I am getting this reading because of the 0 reading on 3 of the wheels. These wheels were put on by a dealer for the "our cost is your cost sale" as a little something extra to beat the competition. they printed up a service bulletin that was addressing the sensors not working correctly on aftermarket wheels. something to the effect that the sensors needed to be at a 45 degree angle to the ground. the sensors on my wheels are at a 90 degree to the ground. this answer suited me til i started seeing posts from several people with aftermarket wheels and no one was talking about any sensor issues. I called the dealer where i purchased the Denali and they already addressed this issue with me. Should i go see another dealer or will they just give me the colds shoulder? Thanks
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