How likely is it for timing chain and transmission to fail at the same time? And for this to occur without a warning light coming on?
Not likely but anything is possible. How about some details?
With this vehicle anything is possible! One of the symptoms of a failing timing chain is late transmission shifting. In addition to the engine running hot and boiling over when it's shut off. I suspect that the transmission is fine. How many miles are on this vehicle? Hope that helps! Jim
Jim, My wife drives the car... she claims the car would make a clanking noise when in drive (but at a stop). In park, you would hear nothing, in neutral, nothing... and she says she didn’t hear the noise in drive. I started the car in the garage and agree with everything she observed. I did not take it for a drive so I can’t say (myself) whether or not there was a noise while driving. Again no warning lights appeared. Had it towed to the dealership & they claimed it was a timing chain issue. We had them fix that, and now the dealership says there is also a transmission issue that was masked by the timing chain noise. They now want to do 6 hrs of work to determine the issue with the transmission. I have a feeling they are going to tell me the transmission is shot. The car has ~68,000 miles and is just days over 3yrs old. My wife is in the process of reaching out to GM. Unfortunately I have had the timing chain fail in the past, but on those occasions it took the engine with it. But those incidents occurred on older cars with twice as many miles...
Unfortunately you're out of powertrain warranty because of mileage (5 years or 60,000 miles). With the new information it sounds like the transmission was probably the issue to begin with. A timing chain noise would be constant. I'm not surprised by this. GM has been selling poor quality products for about 25 years now. My Niece has a 2017 Malibu that she bought new. At 10,000 miles the transmission quit on her and she was without the car for six weeks! I told her to make the Dealer buy it back under The Lemon Law, but she wouldn't. Then last winter she got stranded again with a dead battery! Good luck trying to get anywhere with GM Customers Service. My experience is they are less than cooperative. Personally I wouldn't put any more money in the Equinox. Trade it in on a Ford product. On the domestic side Ford is the best in my opinion. I've had my 2008 Grand Marquis since 2012 and only once has it needed a repair. The instrument cluster needed to be fixed. Otherwise it's been routine maintenance. Tires, a battery, a power window switch, and a couple of light bulbs. That's it! Hope that helps! Jim
Jim, Thanks for your insight. Anything relating to mechanical issues is certainly beyond my understanding. But I was suspicious of a misdiagnosis and several mechanically knowledgable people seem to doubt the original diagnosis just as you have suggested. Again thanks for your thoughts!
You're welcome. Glad to help! Transmission repairs or replacement will quickly run into thousands of dollars. Good luck with this! I hope everything works out for you!! Jim
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