I have owned a 2007 Cadillac SRX4 V6 for almost 6 months. I have had to bring it in for service 4 times now. The latest is for a "Powertrain Module Error". Dealer first told me the engine waas bad and would need to be replaced. Then after my slight tirade with the service manager, they tell me one of the 3 timing chains has stretched and they are waiting for parts. They have had the car for 6 going on 7 business days now not including weekends. I am an engineer who has built more than a few engines in my life. Has anyone else ever heard of this or had it happen to them? I find it hard to believe I have the only one that this has happened to. 3.6L VVT motor is available in all the sedan platforms, dealer has not ever seen this problem before. What really irkes me, is I bought this one, NEW. It has less than 6,000 miles on it. Anyone, any opinions?? I do love this vehicle, but now it feels tainted.
Drive chains don't stretch. They wear at the pins and get longer. This is easy to check by seeing how far you can flex the chain, 90deg. to the normal direction. It's inconceivable the chain could wear in 6000 miles. It sounds to me like they don't have any idea what's really wrong.
Good luck if your car is a lemon,
GM would rather spend 3 times as much as the car costs to fix, rather than issue you a new one, or buy it back. All the while you wait around paying for a car, you do not have the ability to use, and they don't issue rentals often.
I know chains don't stretch, and if you take them off you should change them all. Car runs Mobil One so I figure wear should not be an issue either. THought hard about the lemon thing, I will wait to see what they say today. Car is supposed to be ready. Mechanics are definately not mechanics anymore. Just part changers. Dealer is good though. Free loaner everytime. I know the issues are not there fault, and they are left to deal with what GM dumps on the market and the people who buy. With the rebates, incetives and GMS cert I used from a freinds father, I did get what I, and most felt was a deal of a lifetime. But whatever price this is upsetting. Any other insights would be greatly appreciated. I will post what the findings were as soon as I know. I did specify in writing to the service manager, general manager and the service rep that I want to see the parts that came off.
This is a little different, but I had a bad camshaft on my '04.
They replaced both, and the retainers.
Car had 1200 miles on it at the time.
Made kind of a whirring sound because the camshafts weren't machined properly.
O.K. Picked the car up Friday night from the dealer. Dealer showed me all 3 chains. Don't know if they were the actual chains or not because I am new to this engine, but they all looked excellent. Had a few misc. gaskets also, but without taking them back to the office and putting them on a comparator, they looked great, no sign of wear anywhere. Dealer said the supplier sent the wrong chains to GM when the engine was built. Customers were complaining of noise, so GM has Cadillac dealers change the chains when customers bring the car in. Funny, my engine purrs with no strange noises. I took the car in with a solid check engine light, and a Powertrain Module error code. So my opinion is the dealer has no idea what the problem is. I will view this as strike 1 to the 3 strikes on the lemon law. I am disappointed because I do really love this vehicle.
O.K. Picked the car up Friday night from the dealer. Dealer showed me all 3 chains. ..... Dealer said the supplier sent the wrong chains to GM when the engine was built. ............. I took the car in with a solid check engine light, and a Powertrain Module error code. So my opinion is the dealer has no idea what the problem is. I will view this as strike 1 to the 3 strikes on the lemon law. I am disappointed because I do really love this vehicle.
Sorry to hear about your problem, but stranger things have happened in today's world of hi-tech engines and sub-contract outsourcing. Suggest that you keep an eye on your diagnostics (also maybe track details with a "ScanGuage" or other analysis tool) and maintain regular service with your dealer to ensure all else is OK for next several months before enacting lemon; and your dealer sounds like a jewel!! Hope this is only an anomaly!! Good luck
Michigan SRX4, Have you had to bring your SRX back since its repair in April? I purchased a certified pre-owned 2007 SRX LAST WEEK, and recieved a check engine light shortly after. The dealer says its the timing chain, and they have to wait for the parts. Gives me a bad feeling about this car.
