2005 Chevy Malibu Rough start

[quote:115ee87e79="gem_kitten"]Transmission problem
2005 Chevy Malibu V6 Two Wheel Drive Automatic 120000 miles
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When I am starting up my Chevy Malibu Maxx in the morning, I heard a grinding noise coming from under the hood. I've realized it's when I turn on my defroster on the car. I've taken it in and the mechanics couldn't get it to make that sound and they found nothing else wrong. This morning I started the car again and there was definitely a loud grinding sound when the heater was turned on![/quote:115ee87e79]




did they check belt tensioner
And or alternator

[quote:ca1a159f63="BMRFIXIT"][quote:ca1a159f63="gem_kitten"]Transmission problem
2005 Chevy Malibu V6 Two Wheel Drive Automatic 120000 miles
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When I am starting up my Chevy Malibu Maxx in the morning, I heard a grinding noise coming from under the hood. I've realized it's when I turn on my defroster on the car. I've taken it in and the mechanics couldn't get it to make that sound and they found nothing else wrong. This morning I started the car again and there was definitely a loud grinding sound when the heater was turned on![/quote:ca1a159f63]




did they check belt tensioner
And or alternator[/quote:ca1a159f63]



No but thanks for a place to start. What other problems might I have if I it's one of the two mentioned above?

[quote:170431ff0a="gem_kitten"][quote:170431ff0a="BMRFIXIT"][quote:170431ff0a="gem_kitten"]Transmission problem
2005 Chevy Malibu V6 Two Wheel Drive Automatic 120000 miles
----------------------------------------------------------------
When I am starting up my Chevy Malibu Maxx in the morning, I heard a grinding noise coming from under the hood. I've realized it's when I turn on my defroster on the car. I've taken it in and the mechanics couldn't get it to make that sound and they found nothing else wrong. This morning I started the car again and there was definitely a loud grinding sound when the heater was turned on![/quote:170431ff0a]




did they check belt tensioner
And or alternator[/quote:170431ff0a]



No but thanks for a place to start. What other problems might I have if I it's one of the two mentioned above?[/quote:170431ff0a]

the clutch on the ac compressor