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Old 05-04-2018, 10:40 AM   #1
LETHAL2SS
 
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2012 cadillac cts coupe. question -

I assume you guys know enough about the LFX to help me out here...

My girlfriend owns a 2012 cts coupe with the 3.6 (im almost positive its a LFX) annyway, changed the oil yesterday, shes driving it and saying that its shaking when shes sitting in traffic and the oil pressure guage is moving everywhere between 25-55 psi, are we looking at a oil pick up or something?
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Old 05-04-2018, 05:49 PM   #2
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I'm no expert on 3.6s or Caddys but......

If my Suburban did that i'd be looking for something knocked loose during maintenance like a vac hose, plug wire, etc. The oil pressure jumping around is more than likely a result of the rough idle coming from the above. Its just possible a sensor or coil pack just happened to go out at the same time the oil got changed.

No lights or codes?
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Old 05-13-2018, 06:33 PM   #3
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