CarComplaints.com Notes: Engines shouldn't need a new quart of oil every 500-1000 miles, but for thousands of Suburban owners that's exactly what's happening. Engine oil consumption on aluminum block engines with Active Fuel Management (AFM) is out of control and owners are left looking for answers.
The most likely culprit is an uncovered AFM valve which, in many cases, can be covered under warranty. The problem is the issues don't stop there and many owners have been told by GM just to buy a new engine. Take one guess who they want to pick up the tab.
This is actually the 2nd time this has happened with this vehicle. The first time I went through three batteries before a tech finally identified the problem as the starter. The vehicle will start, run, and drive just fine, but then when I reach my destination and go inside for a bit, I am trying to find someone in the parking lot to give me a jump start. It is so intermittent that you really don't know when it is going to happen. I have owned nothing but Chevrolet's for 34 years and I have never had one this bad. I hate being stranded.
Our 2007 Chevy Suburban LTZ has been intermittently losing ALL electrical power. I cannot unlock the doors, rear lift gate, radio, lights or start the vehicle. It will happen at all times, but not while driving (yet). I have had it lose power in the morning when it has been sitting all night, and I have had it lose power in a parking lot when I had been using it all day and then just stops working as soon as I shut it off. It usually lasts at least 30 minutes and sometimes over an hour or two to come back. There seems to be a TON of similar complaints online and I have not found a solution. Everyone is putting all kinds of money into replacing cabling, ground wires and harnesses with no rhyme or reason. I had to sell my Yukon Denali for the same reason, only it was shutting off while I was driving. If I can't fix this we are definitely never purchasing a GM product again!
Once again, car wouldn't start after we listened to radio with the ignition off. We have been stuck numerous times where we needed to be jumped and then the car was fine. As a mom with 4 kids, I am not comfortable driving this car - always wondering whether it's going to start or not. It's also died coming out of the car wash and at other times.
Truck randomly looses power. Total Power - won't start, no light, Nothing. Touch the p battery cable and everything comes back on. Had a short term fix for a while (per dealership) by cleaning battery cable connectors and post. Stopped for a while - now more frequently happening.
The no start problem has left me dead in the water 6 or 7 times. Thought it may be letting the doors open at the car wash or water splashing up into the fuse box; no deal. Just an annoying pain in the ass.
A D V E R T I S E M E N T S
This is actually the 2nd time this has happened with this vehicle. The first time I went through three batteries before a tech finally identified the problem as the starter. The vehicle will start, run, and drive just fine, but then when I reach my destination and go inside for a bit, I am trying to find someone in the parking lot to give me a jump start. It is so intermittent that you really don't know when it is going to happen. I have owned nothing but Chevrolet's for 34 years and I have never had one this bad. I hate being stranded.
- hnewcomb, Shawnee, KS, US