2003 Cadillac CTS Freeze

2003 CADILLAC CTS
84,000 MILES • 6 CYL • 2WD • AUTOMATIC
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JADEMARIE
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At freezing temps in Colorado 2 degress my CTS wouldn't start so I put heet in the gas tank. It starts now but it Shakes really hard and white smoke comes out of exhaust, could you tell me why?
Dec 11, 2009 at 1:35 PM
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FACTORYJACK
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Does the white smoke have any odor? It is hard to say at 2 degrees what is happening, it is pretty hard on vehicles. Prior to it getting cold, it was fine I assume?
Dec 11, 2009 at 11:13 PM
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JADEMARIE
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Yes the car was running fine before. the white smoke smells like gas. It runs but shakes and uses a quarter tank of gas to get a half a mile.
Dec 14, 2009 at 9:27 AM
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FACTORYJACK
  • ✓ASE Certified Mechanic
  • 4,159 POSTS
  • ASE Certified Mechanic
You could have an injector(s) that are stuck, or possible faulty engine coolant temp that is reading even colder than it actually is.
Dec 14, 2009 at 11:13 PM
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JADEMARIE
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Ok. It ran good for a while last night, but after about a half hour it started shaking again. It didn't smoke any more tho.
Dec 15, 2009 at 9:03 AM
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FACTORYJACK
  • ✓ASE Certified Mechanic
  • 4,159 POSTS
  • ASE Certified Mechanic
If it keeps up, you will have to have some hands on diagnostics performed. With that, one could tell what cylinder(s) is misfiring, and determine ignition, fuel, or mechanical is at fault.
Dec 15, 2009 at 10:48 PM
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