Cadillac CTS - Recent Questions, Troubleshooting & Support - Page 9

doubt if tire size will be the problem more like bad wheel sensors and wiring the traction control use the same sensors as the ABS

Sounds like an O2 sensor problem, and I would start by replacing it. When the engine first starts and it is relatively cold, it goes into open loop mode and does not use O2 sensor readings to control fuel flow (uses various preset values for these and other sensors instead, and the engine should initially idle at 900-1000 rpm). When the engine warms up, the computer goes into closed loop mode and does use these readings. If if the O2 sensor is faulty, it can cause the problem you describe. There are other causes for fuel delivery problems as well - bad gas or water in the tank, failing fuel pump, kinked fuel line or a plugging fuel filter, failing pressure regulator, a fouled or failing injector, problem in the EVAP system, etc.

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you would be closer to the problem than the dealer taking it as a column shift , it is very possible that the plastic slides on the selectors out side of the box are badly worn or the rods them selves are worn out

Try cleaning the throttle plate, where the flapper is. Carbon buildup where it closes. Air entering engine after the mass air flow meter will keep from starting easy. Computer doesn't like air it doesn't know about.

You have your readings switched to metric instead of US standards.

Sounds like you may have to bleed your brakes. Could be an air lock.

Top front of engine. See details and test procedures at link below. Repair Guides Components Systems Electronic Control Module AutoZone com

STARTING DISABLED REMOVE KEY Refer to Theft Systems Description and Operation in Theft Deterrent STARTING DISABLED REMOVE KEY The radio illuminates the STARTING DISABLED REMOVE KEY message when the VTD system has disabled the starting system. The radio receives a message from the theft deterrent control module via the serial data circuit requesting illumination. Your best bet ,take it to Cadillac dealer and have it checked . Could have DTC'S - diagnostic trouble codes DTC B1015 DTC B1016 DTC B3031 DTC B3055 DTC B3060 DTC B3090 DTC B3935 DTC B3976 DTC P1629 DTC P1630 DTC P1631 The theft deterrent module or the insturment cluster or the ECM is not seeing correct info. The vehicle theft deterrent (VTD) system functions are provided by the theft deterrent control module. When an ignition key is inserted into the ignition lock cylinder and the ignition is switched ON, the transponder embedded in the head of the key is energized by the exciter coils surrounding the ignition lock cylinder. The energized transponder transmits a signal that contains its unique value, which is received by the theft deterrent control module. The theft deterrent control module then compares this value to a value stored in memory, learned key code. If the value is correct the theft deterrent control module sends a random generated number to the transponder, this is called a challenge. Both the transponder and the theft deterrent control module perform a calculation on the challenge, if the calculations match the theft deterrent control module sends the fuel continue password via the serial data circuit to the Engine control module (ECM). If either the transponders unique value or the calculation to the challenge is incorrect the theft deterrent control module will send the fuel disable password to the ECM via the serial data circuit. The components of the VTD system are as follows: • Theft deterrent control module • Engine control module (ECM) • Ignition key (Transponder) • Ignition lock cylinder • Security indicator

Your best bet take to a qualified repair shop that has diagnostic test equipment to view inputs from sensors an shift solenoids .Check for diagnostic trouble codes .

TAKE IT BACK TO THE DEALER!!

Hey Gary, take your car and get the transmission fluid and filter changed immediately... you will be glad you did...(expensive lessons speaking!!!)

Unfortunately, is either a faulty ECM or with the ECM wiring. Check the connectors at the ECM with the negative battery cable disconnected. Are there any other DTCs?