Well that didn't take long, two months since purchasing our 37,000 mile Sky we have our first serious problem.
Wife says the A/C stopped working suddenly, blows hot air. It was 98F at the time. I check the car and find the following:
1. A/C inoperative because the compressor will not cycle.
2. The coolant temperature display is blank showing (---F)
3. After letting the engine cool overnight and starting cold in the morning I notice the engine cooling fan comes on as soon as the engine starts and conditions #1 & 2 remain.
4. While I was driving the Sky to the GM dealer (it's under a Zero deductible Plat warranty) the coolant temperature started displaying fluctuating readings from 147 to 175 F which of course is way below normal operating temperature. Since the coolant display started showing info (albeit inaccurate) the ECU came out of failsafe mode and the A/C began functioning normally.
5. The GM dealer kept the car 2 days ran it 7 miles and could not duplicate the problem. they also said they checked for codes and found none pending. CEL was never on.
6. While I was driving it home and looking at the fluctuating coolant display I ran the engine up to 6,500 RPM in the first 2 gears. That made the coolant display pop up to normal 195F temp and stabilize.
The Sky operated normally for 7 days...until the wife was driving home last night when the exact problem returned,
Yea, intermittent electrical problem that will probably never happen at the GM dealer.
I could not find a TSB regarding this condition.
Wife says the A/C stopped working suddenly, blows hot air. It was 98F at the time. I check the car and find the following:
1. A/C inoperative because the compressor will not cycle.
2. The coolant temperature display is blank showing (---F)
3. After letting the engine cool overnight and starting cold in the morning I notice the engine cooling fan comes on as soon as the engine starts and conditions #1 & 2 remain.
4. While I was driving the Sky to the GM dealer (it's under a Zero deductible Plat warranty) the coolant temperature started displaying fluctuating readings from 147 to 175 F which of course is way below normal operating temperature. Since the coolant display started showing info (albeit inaccurate) the ECU came out of failsafe mode and the A/C began functioning normally.
5. The GM dealer kept the car 2 days ran it 7 miles and could not duplicate the problem. they also said they checked for codes and found none pending. CEL was never on.
6. While I was driving it home and looking at the fluctuating coolant display I ran the engine up to 6,500 RPM in the first 2 gears. That made the coolant display pop up to normal 195F temp and stabilize.
The Sky operated normally for 7 days...until the wife was driving home last night when the exact problem returned,
Yea, intermittent electrical problem that will probably never happen at the GM dealer.
I could not find a TSB regarding this condition.