Replaced timing chain in caddy 2006 srx 3.6 ly7 engine now car will not start.

What engine ? 3.6 or 4.6
Engine Coolant Temperature (ECT) Sensor (LH2)
In the rear side of the right cylinder head
Engine Coolant Temperature (ECT) Sensor (LY7)
In the left cylinder head near the center cylinder

At the rear of the right cyl head

http://www.certifiedmastertech.com/wordpress/2012/08/01/cadillac-timing-chain-problems/

Hope this helps

No sir, on the ly7 HFV6 3.6l in the 04-09 srx and cts the knock sensors are located on the sides of the engine block. Bank 1 and two are visible fringe wheel well. Not to hard to get to with a 3/8 drive 13mm socket, universal joint, and short extension. I would also check the connector with a multi meter while doing this job to ensure you have a good connection and harness is not damaged. Best of luck!

could be the water pump ,grab hold of the pump pully and pull it back and forth see if it is loose on there , why would change a motor becasue of a chanin anyhow

You will need a service manual at the least OR take your chances with a non GM engine rebuilder etc.

the fuel filter has to be facing the right way if it is in backwards the fuel will not go through it. make sure the arrow is pointing the correct way.

P0008 CADILLAC - Engine Positions System Performance Bank 1
The ECM detects that both camshafts on either bank of the engine are mis-aligned with the crankshaft for more than 4 seconds or a cumulative of 50 seconds.

The Engine Control Module (ECM) monitors the position of both camshafts and the crankshaft. The ECM performs a test for misalignment between both camshafts on one bank of the engine and the crankshaft. During the test the ECM learns the position of the camshafts and the crankshaft. While the engine is idling, the ECM compares the position of both the camshafts and the crankshaft with the learned value. The ECM will set the P0008 code if both learned values for one bank of the engine are exceeding a calibrated threshold in the same direction.

Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)

Possible causes
- Engine mechanical problems
- Incorrect timing chain
- Stretched timing chain
- Failed camshaft actuator or actuator solenoid

Tech notes
There is a factory service bulletin for the following Cadillac models:

2004-2008 Cadillac CTS SRX
2005-2008 Cadillac STS

The service bulletin suggest replacing the primary drive and both secondary drive timing chains. Contact your Cadillac dealer for more information. The repair could still be cover under factory warranty.


Hope this helps (remember to rate this answer).

the timing is off, take a good look at the reluctor wheel, make sure its not slipping. other thing is the tensioner, if the marks were all lined up when put together and they are no longer lined up after driving, then the tensioner will have to be replaced.
if you do not have the special tools to set the timing up, send it to the dealer and let them set it up for you, but your timing is off.

the stowaway third row seat on my 2006 Caddie SRX does not come down. when you press the switch it starts to move but then it goes half way and retracts back, as if something is catching. I also noticed that one side does not retract evenly with the other side. could it be the motor on that side is faulty?