Four problems related to check engine light on have been reported for the 2007 Saturn ION. The most recently reported issues are listed below.
I started my car up and it sounded extremely rough and the check engine light came on. I took the car to a service center to get oil changed, coolant changed, fuel system cleaned and to get an overall check done. They were unsure of the issue and I took the car to the dealership where a diagnostic test was done and it read that there was an issue with the timing chain. After reading on here and online I see this is a common issue with this car.
On12/14/2014 I put gas in my car and the gas cap did not screw on like it usually did and did not click like it always did. I got in my car and started the engine and the check engine light came on. When I got home I looked in the owners manual. I called rancho motors and was told I should take the car to them. I took my car to them on 12/17/2014. I was given a ride home while they checked out my car. On 12/22/2014, I called and spoke with mike tarpley, the assistant service manager. He said my car had a stuck valve, the #2 cylinder needed repair and the thermosat needed to be replaced because it was stuck open. On 12/23/2014, I called again and was was told my car would need a valve job. I called on 12/29, 12/30 and 12/31 and was told they were working on it. All this time I was told the cost of this repair was $2,000 and they would get me a senior discount. I was finally told on 1/5/2015, that my car was ready and they sent someone to come get me and take me to rancho motors. When I got there I was told the cost was $2,500, and with my discount it was $2,355. I do not understand why my Saturn with low mileage needed all of this work. I had not had any prior problems that would indicate this needed to be done. Why was it not just the gas cap?.
After driving my vehicle for approximately five miles, I placed the car in park and turned the key back to turn the vehicle engine off. The key turned back and I was able to take the key out, but the engine did not turn off. I brought the vehicle to a gm dealer and was told the cause of this issue was a faulty ignition lock cylinder assembly. The dealer replaced the lock cylinder, which was apparently not under warranty, but could be related to the recall that gm is now issuing, revolving around the faulty ignition. During this visit, the dealership checked to see why my check engine light was coming on and it was found to be valve assembly at fault in the secondary air system. Could this have been caused from the faulty ignition and having to disconnect the battery to stop the engine, which in turn through the entire computer off in the vehicle? when all was said and done, my bill for parts, labor and tax was $916. 98. Less than six months later, the ignition lock cylinder assembly had to be replaced for the second time. Due to it being less than six months, I was not charged for this replacement. Although the vehicle's engine did not stop running as in the current 2014 recall, could this still be related to the same faulty ignition situation?.
The contact owns a 2007 Saturn Ion. The contact was driving 5 mph when the vehicle stalled. The check engine and power down warning lights illuminated prior to the failure. The vehicle was towed to both a private mechanic and the dealer. The dealer stated that the throttle body sensor needed to be replaced. The vehicle was repaired. The failure mileage was 56,000 and the current mileage was 57,000. Updated 06/12/lj the consumer stated the throttle body was replaced four times. The check engine light illuminated. Onstar reported a fuel system problem. Updated 06/13/12.