Bought my wife an extremely clean low mileage CXL with an as is Warranty. Since then:
- Car will turn over but not start. Lights come on, and the starter continues turning over, even after the key is off.
- The Stabilitrack Sensor came on, and the car lost power. After applying Code reader, Sensor light and warning went off, and car drove fine.
- Radio will not work, has loud buzzing popping sound over speakers; even after car is turned off. You can hear radio through headphones from rear jack.
- Replaced Top Engine Fuel system components (Injectors, etc.), Spark Plugs, Filters (Oil and Fuel), 3 of 4 O2 Sensors.
It’s best to post these as separate question threads to get more visibility and answers.
An "As Is Warranty" means you have no warranty at all.
I have never heard of an “As Is” Warranty. These sneaky dealers are good.
Do you have any check engine light?
Car will turn over but not start.
Follow Scotty's video for diagnosis:
You're dealing with a number of disparate issues here, though some may be related. First off, if the car was sold "as-is" there is no warranty. If anyone at the dealer described it as an "as-is warranty" they were basically lying to make you think they'd take care of problems. (Sounds like a BHPH lot deal.) However that damage is already done.
First thing is to scan for codes if you have not already done so. (Not all codes will trip the check engine light.)
You didn't mention the air filter, make sure that's not plugged up. If the starter continues to run even after you turn the key off you most likely have a bad ignition switch. This can also cause a no-start condition.
So other than that, if the engine is OK internally then either you have no spark or no fuel. A quick-and-dirty test to determine which is to spray some starting fluid into the intake, then crank the engine. If it briefly starts up then you have spark and the problem is fuel delivery - possible bad fuel pump or its fuse, relay, or wiring. If the engine does not fire up then you have no spark. Cause of that could be anything from bad ignition switch to bad crank or cam sensors to some really nasty problems with modules or data communications.
Some methodical analysis is needed rather than the parts cannon approach.
- Car will turn over but not start. Lights come on, and the starter continues turning over, even after the key is off.
- The Stabilitrack Sensor came on, and the car lost power. After applying Code reader, Sensor light and warning went off, and car drove fine.
- Radio will not work, has loud buzzing popping sound over speakers; even after car is turned off. You can hear radio through headphones from rear jack.
- Replaced Top Engine Fuel system components (Injectors, etc.), Spark Plugs, Filters (Oil and Fuel), 3 of 4 O2 Sensors.
2010 Buick Enclave, mileage 175,900, one previous owner traded in for new vehicle. Purchased from Dealership after reviewing CarFax Report which only showed changing light bulbs and usual service. While traveling from Tennessee to Florida in August of 2021, my wife and teenage son experienced an abrupt loss of power and stall in the high speed lane and being stranded on the side of the interstate for 4 hours. According to both, there were no warning lights or abnormal sounds, just a sudden loss of power then stalling. After that there was the strong smell of gasoline when they attempted to start the car. I had it repaired with OEM parts (listed below) and they returned without incident. On 02/04/22 we travelled from Chattanooga TN to Knoxville; we attempted to return and had gone approximately 5 miles when the Stabilitrack Sensor came on, and the car lost power. Took it to O'Reilly's and they ran the Code reader which gave an ambiguous Code that the Tech could not "interpret" and he directed us to his favorite shop down the street. Since it was a Sunday and 9:30 at night we were going to have to stay overnight and get bent over again. When he removed the Code Reader the Sensor Warning light went off, and car drove fine. So I slowly drove back to Chattanooga.
I've replace the following with OEM equipment in 08/21:
Fuel System Cleaned
Intake VVT Solenoid
Exhaust VVT Solenoid
Fuel Injectors
Ignition Coils
Spark Plugs
Upstream O2 Sensors - twice
Downstream O3 Sensors - twice
On 02/10/22 the the car would not start. I disconnected the negative ground, let it sit all night, replaced it in the morning, the car started right up and has run smoothly without any Warning or Check Engine lights. I should say that previous to the trip to Florida the Radio stopped working, and it has a loud buzzing popping sound over speakers; even after car is turned off. You can hear radio through headphones from rear jack.
This car is is extremely clean; inside and out. I have more invested in it that I can get out. Is this a fixable problem, or should I trade it in for a nice used Nissan or Toyota?
Under the best of circumstances those are sketchy vehicles. In this case it seems to have been sold by an unscrupulous dealer who probably picked it up at auction and knows nothing about the vehicle's history. They cleaned it up real nice and shiny and put it out waiting for a victim. Carfax is not a reliable indicator of service and repairs or even accidents since not everything gets reported to them.
That thing has already become an unreliable money pit. If you are in a position to get rid of it that would be the best way forward, but stay way from Nissan due to their unreliable Jatco CVTs. (In cars of that vintage Toyota and Honda would be the top picks, being careful to avoid specific models that are known to have problems.)
Thank you.
On that train of thought
On that train of thought, which the Honda or Toyota vehicles is most dependable?