Question about 2005 Cadillac CTS

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Change spark plugs, GM 3.6L

What is involved in changing the spark plugs in an '05 CTS with the 3.6l? I presume the plentum...or manifild needs to come off, as it covers up the front plugs. What do I need to look out for? Any hidden surprises that will cause problems? Do the gaskets need to be replaced, or are they an O-ring type? What am I going to break getting the insulation piece off to remove the back bolt from the plentum? Any special tools required? Any help is appreciated...Thanks

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6 Suggested Answers

  • 1 Answer

SOURCE: Left Front Blinker Replacement on 2004 CTS

changing the blinker on a CTS

Posted on Apr 10, 2009


ftw1952
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SOURCE: what dose a 1998 8cyl 6l northstar 32 valve engine

if you own a 97 they look the same

Posted on Jan 16, 2010

  • 14036 Answers

SOURCE: 2003 cadillac cts - white smoke after replacing spark plugs

REMOVE VALVE COVER.REPLACE THE 4 ROUND RUBBER SEALS ON THE INSIDE VALVE COVER.

Posted on Jun 22, 2010

SOURCE: I have 05 cts 3.6

Try replacing the cable and if it has seperate coil ingnition swap the one misfiring with another....If misfire changes with to cylinder with the swapped coil, you've found your problem.....Regards Johngee

Posted on Oct 07, 2010

  • 2 Answers

SOURCE: 2003 cadillac cts 3.2 liter..rough idle, scan tool

Did you ever find a solution to this? I am having the same issue on 2,4,6. I have replaced the coils. checked the intake for vacuum leaks. I am lost here let me know if you find anything and I will do the same.

Posted on Jan 24, 2011

Mustgo
  • 2359 Answers

SOURCE: i have a 100000 miles on my cts took to shop said

Yes.

Timing belt is rated for 85,000 to 95,000 miles.
You do not want to wait for it to break.

Today's timing belt is being use to drive water pump.

3.2 Liter MPI V6 is modular.
The engine has to come out from the bottom!!!!
It will save you 2-3 hours of labor time to do ALL these work at the same time.
===
Ask your service advisor to replace all heater hose at the same time to avoid trouble.
Inspect all engine and transmission mounts.

This is going to be costly but it will safe the labor charge now to complete all the tasks at the same time.

Posted on Jan 31, 2011

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2003 Cadillac CTS Spark Plug Change 3.2L V6 - YouTube

? 3:08
www.youtube.com/watch?v=8Pzcl-hJ9xQ
May 26, 2011 - Uploaded by Sandman Himself
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Cts 2004 cadillac,P0301 and P0302, cylinders 1 and 2 not working, i changed coils and spark plugs and still not working. i do i need to do next. thank you.


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I have 05 cts 3.6 L misfire on cylinder 2 i changed spark plugs but still the same problem seems like its getting worse. im guessing its the coil or possibly fuel injecter. How do i test those. And i cant...


Try replacing the cable and if it has seperate coil ingnition swap the one misfiring with another....If misfire changes with to cylinder with the swapped coil, you've found your problem.....Regards Johngee

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