Cadillac Owners Forum banner

1 - 3 of 3 Posts

·
Registered
srx
Joined
·
6 Posts
Discussion Starter #1
Hello,
After my wife complained about a sudden loss of power and a flashing MIL, I retrieved the following P codes: 0300,0301,0303 and 0305. As a result, I replaced the coils for cylinders 1,3 and 5. The car ran fine for approximately 10miles - now I have the same issue (and corresponding P codes). Any help/advice would be greatly appreciated!
 

·
Registered
05 srx awd v6 (gone), '07 GXP, 2010 li'l red wagon 3.6
Joined
·
3,177 Posts
Since it's all 3 cylinders in the same bank look for something common such as power or ground wiring for the coils as well as the injectors. Could also be plugged fuel rail or big vacuum (air) leak on intake. Not likely individual components. Then look to wiring for cam actuator circuits. Again, something common to all 3 cylinders. Static check of coil grounds will work; injector grounds are through ECM so engine needs to be running.
 
1 - 3 of 3 Posts
Top