Three problems related to radiator have been reported for the 2003 Cadillac CTS. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Cadillac CTS based on all problems reported for the 2003 CTS.
I bought this car for my son that go to college at san jose state university, his been using this car since 2015 till 2019. Recenty about a month ago his complaining the car has been overheating for no reasons, he says that the gauge goes all the way up everytime he drive it but its ok if the car engine is running but in park mode. We ended up got the car towed to merced. Since July of 2019, the car is the garage and never drive. We only start the car mostly to warp up the engine but not drive. We have a friend mechanic look at it and can't point out the right problem, a lot of assumption possible the thermostat, or radiator, water pump, or the fan, etc.
2003 cadilac Cts. Consumer writes in regards to problems with brake system the consumer stated the metal brake line had to be replaced, due to severe corrosion. The consumer stated he received a recall letter two days later. Also, the struts, three wheel bearings, radiator, transmission cooler line also had to be replaced due to corrosion. The cruise control and gas tank, which was leaking had to replaced.
2003 Cadillac Cts, no sevice lights on, when stopped at light, smoke coming from under the hood, then smoke inside of the car. Turned off engine and assistance opened the hood, flame under hood and smoke from fire near battery. Was told that pvc valve burst under pressure from cold outside temperatures, caused oil to spray over engine and under hood and because engine was hot from use, caused it to ignite. Also told that this was the 3-4th car reported last week to one dealership with same problem. Not sure what repairs were done, car is repaired today.