V6: 3.0, 3.2 LA3, 3.6 LY7, 3.6 DI LLT Discussion, Bent valves in Cadillac Engine Discussion; I have a 2007 STS 3.6 , 103000 miles, last Feburary when i go down to -13 deg, went to ...
- 05-24-14 11:11 AM #1Cadillac Owners Member
- Automobile(s): 2007 sts
- Join Date
- Feb 2014
I have a 2007 STS 3.6 , 103000 miles, last Feburary when i go down to -13 deg, went to go to work car would not start, jump forward all intake valves on passenger side bent, my question is what was the cause of failure, car ran, when it was taken apart the timing chain was loose on that side, need to pull other head as compression was below specs on that side also. Just wondering what course of action i need to take, any help would be appreciated.
- 08-02-14 07:28 PM #2Cadillac Owners Fanatic
- Automobile(s): 2008 CTS4 3.6 LY7
- Join Date
- Feb 2013
Re: Bent valves
Timing Changes in the earlier versions of the 3.6 are known for developing slack. This can happen when the oil level becomes lower from it burning oil and the tensors not having enough oil pressure to keep the correct tension.
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