How to fix P0335 and P0727 error codes for Cadillac Catera 2000?

On a 2010 SRX 3,0L - From the front of the car 2-4-6 front to the rear - rear is 1-3-5 front of engine to rear. Firing order 123456

Possible causes
- Faulty Crankshaft Position (CKP) Sensor
- Crankshaft Position (CKP) Sensor harness is open or shorted
- Crankshaft Position (CKP) Sensor circuit poor electrical connection
- Communication error between the Engine Control Module (ECM) and Transmission Control Module (TCM)

The P0727 Codes is triggered when the TCM receives no signal from the ECM.
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P0727 Description
The Engine Control Module (ECM) monitors the engine speed through the Crankshaft Position (CKP) sensor with the engine running, and send signal to the Transmission Control Module (TCM).

On this website you find fuse box diagram and description for Cadillac Catera (1999 - 2000) https://www.carknowledge.info/cadillac-catera-1999-2000-fuse-box-diagram

if the engine starts for 1 or 2 seconds then dies I would replace the crank position sensor

Oil cooler under the intake plenum at rear top of engine is either bad or the gasket is gone. If you take oil filler cap off, you will see the paste on the cap. Are you going through coolant every so often?


Same as on my wife's 01.

Is it Oil,or Automatic transmission fluid?
I've changed several Catera Radiator's because the transmission cooler cracked inside of them!!
Better check the transmission fluid for engine coolant too,Coolant in the Automatic Transmission will kill it purdy Quick!

it's the cps (crankshaft position sensor)
it cuts off the power to the fuel pump as a preventive mesure, it's a very common problems with the catera
i had the same problem with my 2000 model

click on the below links for code details.
P0106

P0121

P0171

P0174

P0335

P0340

P0385

P0442

P0506

P0507

P0601.

all of the above codes seem to have a common cause, they all list a bad ecm (computer) as being a cause, and the last code P0601 points specifically to a bad computer. sorry for the bad news, hope this helps.

What have you done so far. I would start with looking at the cars repair/maintenance history. Have the codes read (might be helpful). Could be anything, depending in what direction you need to go you might want to check for cyl. miss-fires, bad coil, IAC, fuel pressure, clogged CAT. CMP sensor. Let me know if I can help anymore.

try using a thicker oil like a 10 w40