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I am a proud owner of a GMC Yukon 2016 Denali. Since these cars are not officially available in Europe, I imported a Yukon. Basically, I am very satisfied with the vehicle.
But unfortunately, I have a problem with the vehicle, and nobody could help me so far: The car vibrates quite heavily and uncomfortably. The vibrations started when I stopped at the side of the road to let my wife get out. The engine lamp flashed, and the vehicle had hardly any power left. I drove about 1/4 mile, stopped again, and switched off the car. Afterward, I waited for over one minute and then restarted the car. The engine light stayed off, and so I was able to drive on. Also, the power was as usual again. But from there on I had vibrations which I didn't have before.
So I went to a service station to read out any errors and get some help. But there were no errors detected. Since the vibrations did not disappear on the next miles, I went to the dealer again. They reprogrammed the ECU unit with the latest software and balanced the tires. Nothing has changed. So I went to another dealer, hoping that it could help me in a better way. They told me that my tires were worn out and that they could cause the vibrations. We changed all four tires. The handling was a bit better afterward, but the vibrations remained.
Because in my country there are just about 10 GMC Yukon and a few Escalades driving around, no dealer has a clue and can solve my problem. Therefore I did a lot of research on the internet and on the paid platform of GM (ACDelco TDS) - unfortunately without success so far.
I am also familiar with the service bulletins for the 8-speed automatic transmission. But I can exclude these vibrations so far. I have some of these vibrations in my car. However, I have now imported the right oil from Texas by ship, and I will do the oil change within the next days.
But the other vibrations are noticeable at any speed, even at only 1 or 2 mph or over 100 mph. Especially when I ride uphill or downhill, it vibrates a lot. As if I had no suspension in the back and the vehicle would bounce around. The vibrations are mainly felt in the seat. Very slightly also in the steering wheel. From the beginning, my car tends to steer slightly to the left. But I never paid much attention to this, because measuring the track showed that everything is ok.
I am aware that a remote diagnosis is challenging. But perhaps you have any ideas where I should proceed with my further diagnosis? Is the suspension the right start, the drive shaft, or the wheel mounting? Or could it be the engine mounting? Or something completely different? What is the best way to proceed?
So I recently purchased a 2020 GMC Sierra and I have the jump seat configuration Id like to switch to the jump seat to a center console and I was wondering has anyone done that on a 2019 or a 2020 GM truck already? I feel this is a do-able modification to my vehicle but Im looking to see what I would need to do. If anyone could point me in the right direction that would be greatly appreciated.
By Kiera C.
2001 gmc HD 6.6 Have had no issues prior to this, I have 173 000 on this truck. 92 degree day.
Drove to dump today, turned off, emptied trash, finished and started it back up then drove to the gas station. Turned it off for about 15 minutes, came back out of store, turned it on, started back up then immediately died. Tried to turn it on again and it did not turn over. My dash came on, my gauges worked and it shifted into neutral no issue. Just wouldnt turn over, wouldnt even click. My only light that did not come on on the dash was my WAIT TO START icon for the glow bulbs. Had to have it towed home. Let it sit about 40 min, my husband went out to try it but used the spare key and started up no issue. Twice. No delay in turn over. I went and tried with both 3x each and it started up also, but took longer to actually start.
Last oil and fuel filter change less than 1000 miles ago. Batteries 6.months old. I havent started looking at relays or fuses.
What would be the difference between symptoms and trouble shooting a bad ignition switch versus a bad starter?
Any help appreciated.
By Corey H
GM OEM TRI-MODE POWER BOARDS FOR SALE FOR 2019-2020 modeL SIERRA AND SILVERADO trucks.
great shape. Minor scratches. Only on The original vehicle for a couple months.
SHIPPING FROM NEW ORLEANS
PRICE = $900 + shipping cost
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