Crankcase (pcv) Problems of Cadillac CTS

The pcv valve system design is defective. On (4) occasions the pressure build-up causing massive oil leaks at the valve cover. I experienced smoke from the engine compartment as oil leaked onto a hot engine. A potential engine fire. It took years for the Cadillac dealers to correct the problem. This is a extreme cold weather issue. The automobile was in arizona for a few years and the issue was not a problem but once returned to michigan, the problem got serious. I have all of my repair documents. This car should has been recalled. It is not safe to drive. I was lucky as I was near dealers when this occurred.

See all problems of the 2003 Cadillac CTS 🔎.

Oil leak from frozen pcv valve and valve cover gasket. Causes oil to leak onto engine and exhaust and fumes from burning oil to enter into the cabin of the car.

Oil leakage from cam cover gaskets that require repair. 3. 2l v-6 in my 2003 Cadillac Cts. Black smoke with extreme burning smell flooded vehicle interior compartment also smoke starts to come from under hood of vehicle. Pulled into safe location found huge oil leak on left side of engine around valve cover. Could have possibly started a fire due to highly combustible oil being blown on engine but luckily did not catch on fire. Check on-line found TSB 05-06-01-007a stating gm knows this is a problem. "when operating in extremely cold weather conditions. And gm doesn't have the parts available till June for my car and at a cost of 860. 00 dollar. Pcv hose kit, p/n 55558592 and oil filter cap, p/n 12589430. Safety of the drivers and passengers should be considered cause of the fumes being released in the passenger compartment. Several people I know have the same problem and there waiting also. A known problem and gm should step up and issue a recall on this.

The contact owns a 2003 Cadillac Cts. The contact stated that the pcv passage froze and caused oil to spill onto the exhaust. He called the local dealer and was informed that the pav passage was faulty. The dealer redesigned the pcv passage in the vehicle. Three months after the repair, the pcv passage began leaking again. The contact called the manufacturer about the leak, but has not received any feedback from the manufacturer or the dealer. He feels this is a safety issue because the burning oil leaves a toxic smell in the vehicle, and the leaking could cause the vehicle to shut off. The current mileage was 67,000 and failure mileage was 66,164.

Picked up vehicle from short term parking in approximately 7 degree weather. After starting vehicle and running for approximately 15 minutes notice severe power loss. Within next couple of minutes black smoke with extreme burning smell flooded vehicle interior compartment also smoke starts to come from under hood of vehicle. Pulled into safe location found huge oil leak on left side of engine around valve cover. Could have possibly started a fire due to highly combustible oil being blown on engine but luckily did not catch on fire. Check on-line found TSB 05-06-01-007a stating gm knows this is a problem. "when operating in extremely cold weatherconditions, some 2003-2004 vehicles with 3. 2l v6 engine may leak engine oil from the cam/valve seals, especially from the left side just below the oil fill hole in the cam/valve cover. " this is quite a bit more than a leak since approximately a quart of oil was blown on the engine in only a couple minutes. If the engine would have been hotter there could easily have been a fire. Since this is a know issue with a known cause shouldn't this be taken care of by gm or at least the safety of the drivers and passengers should be considered. They have a correction listed in their TSB that looks to fairly inexpensive but since this is not on a recall list the cost for repair will be much larger due to the blown out gaskets. It could have been much worse if the vehicle would have caught fire. To fix before this happens to you use gm pcv hose kit, p/n 55558592 and oil filter cap, p/n 12589430.