07 CTS 3.6
#1
Junior Member
Thread Starter
07 CTS 3.6
Hello all! I recently acquired a non-running CTS blindly. I didn't even know the odometer as the car had no power. I jumped and boosted the car last night and got the odometer, but I didn't get to do much since the boost only lasts so long. 280k miles.
I installed a new battery today. The starter is good as the belt moves. The crank sound is not entirely smooth as I've seen with no compression, but it might have caught maybe once. There is, however, a sound at the top of the engine similar to coins in a plastic jar. Timing chain slapping around? Valve?
How to proceed? This thing seems generally well maintained but timing is expensive job and I'm not confident everyone did it on time. Maybe it doesn't even matter, considering these have timing problems anyway. How shall I start testing/pulling things apart? Should I buy a full Cloyes timing kit and get 'er done? I can attach a video of the cranking as soon as I can make a decent one.
Until then please reply with any advice.
J
I installed a new battery today. The starter is good as the belt moves. The crank sound is not entirely smooth as I've seen with no compression, but it might have caught maybe once. There is, however, a sound at the top of the engine similar to coins in a plastic jar. Timing chain slapping around? Valve?
How to proceed? This thing seems generally well maintained but timing is expensive job and I'm not confident everyone did it on time. Maybe it doesn't even matter, considering these have timing problems anyway. How shall I start testing/pulling things apart? Should I buy a full Cloyes timing kit and get 'er done? I can attach a video of the cranking as soon as I can make a decent one.
Until then please reply with any advice.
J
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CathedralCub (04-14-2024)
#2
Senior Member
True Car Nut
Your description sounds like something major going on. I wouldn't turn it over any more.
Next steps:
1. Disassembly
2. Diagnosis
3. Repair
Next steps:
1. Disassembly
2. Diagnosis
3. Repair
#3
Junior Member
Thread Starter
https://imgur.com/a/c7UBSup
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CathedralCub (04-15-2024)
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CathedralCub (04-15-2024)
#5
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Thread Starter
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CathedralCub (04-15-2024)
The following 2 users liked this post by carfixer007:
CathedralCub (04-16-2024),
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#7
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Thread Starter
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CathedralCub (04-16-2024)
#8
Senior Member
True Car Nut
You'll have to turn it over to do a compression test. I suspect it is so bad inside that turning it over will cause even more damage than it already has.
#9
Senior Member
True Car Nut
Another thought: You can do a compression test on it after you think you have it repaired.
#10
Junior Member
Thread Starter
The following 2 users liked this post by ulvdet:
CathedralCub (04-17-2024),
Soft Ride (04-17-2024)