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2006 Chevrolet Cobalt Questions

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Its making a sound (if you put a card in a bike tire and ride it, that sound it makes) thats the sound its making. It was running okay just making that sound... today as i'm driving, it wont switch gears its just redlines the whole time and the sound gets louder and worse and then when i step on the gas it does nothing and has no power through the gas pedal at all but i have power on everything else... My check engine light is on.. Help?!?!?
The first time it happened the car would not turn on at a gas station, it then turned on and I was able to drive a few feet to a friends house before the engine disabled. I had to get it towed home. I took it to the shop they said it was the battery. Car was fine for a month (weather was cool).
It kept happening and I kept charging the battery. I then took it the shop because they felt it was the alternator. nothing wrong with the alternator or battery. Then I noticed that the issue seem to happen during the hot part of the day. And after I stopped during stop signs and traffic. I also notice the temp of the car is warmer. And the mechanic had said that he could not read the codes cause the ecm switch was blown. He replaced the fuse and it turned on but it happened again. this time I noticed I didn't have to charge the car for the check engine light to go off. It just had to be nice and cool. Like night time or early morning.
I am taking in but is it worth it? Am I wasting my money?
Replace the engine the engine locked up and I need to replace it.
The heater blew the BCM fuse. Replaced fuse and unplugged resistor. Heater works on high. Car travelled over 200 miles that day with the heater on high. Next morning the heater did not work. Could it be the heater fan? No noise came from the heater fan.
I just got my ignition switch fixed and I was wondering if that had anything to do with the recall for the ignition switch?
When you start the car its not too bad.but when it warms up it hits hard
It will sounds like it doesn't want to start but will for now and this is every time i start the car for a couple of days
Only makes noise when going over gravel or bumps and when declining in speed
trac light is on,abs light is on, check engine light is on, a car with a lock on it shows on, and when driving my car jerks and all the lights will flicker on and off and when i lock my doors then try to unlock the alarm constantly goes off and sometimes car wont start and when all lights are on i cant see how much gas i have or the speed im going or anything and when i put car in drive the doors dont lock automatically
After the reset it came on again Evap is what they say is wrong ?what does it mean
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