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Sedans Cadillac CTS/CTS-V 2008 Cadillac CTS
2757 messages, Last post on Oct 09, 2009 at 8:13 PM
You are in the Cadillac CTS/CTS-V Forum. Your Hosts are pat & karens
Now that it is freezing in NY , I noticed that my cold tire pressure was 30-31 , so I added air till 35 . However , during driving , when the tires get warm , the pressure goes up to 37-39 . Should I keep it under inflated , so that it is normal when hot , or keep it inflated at 35 , and ignore the fact that the pressure rises to 37-39 when hot .
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Replying to: arby1 (Nov 20, 2008 8:38 pm) From the owners manual: How to Check Use a good quality pocket-type gage to check tire pressure. You cannot tell if your tires are properly inflated simply by looking at them. Radial tires may look properly inflated even when they are underinflated. Check the tire’s inflation pressure when the tires are cold. Cold means your vehicle has been sitting for at least three hours or driven no more than 1 mile (1.6 km). Remove the valve cap from the tire valve stem. Press the tire gage firmly onto the valve to get a pressure measurement. If the cold tire inflation pressure matches the recommended pressure on the Tire and Loading Information label, no further adjustment is necessary. If the inflation pressure is low, add air until you reach the recommended amount. If you overfill the tire, release air by pushing on the metal stem in the center of the tire valve. Re-check the tire pressure with the tire gage. Be sure to put the valve caps back on the valve stems. They help prevent leaks by keeping out dirt and moisture.
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Replying to: bingoman (Nov 20, 2008 9:36 pm) |
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I am shopping for a used CTS DI. Is there any way to tell a CTS is non-DI or DI? There are a lot of used CTS advertised in our local market but I am not sure if the salesman really know wether a particular car is DI or not. I would like to have an independent way of verifying the engine..
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Replying to: topgun7 (Nov 30, 2008 2:37 am) |
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I've been wanting to install a set of bracketless all-season wipers(i.e. Bosch Icons or Valeo) on my 08 CTS, but can't seem to find a web site that sells them for my car. Can the CTS only use the factory wipers?
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Replying to: dfusnik (Jan 09, 2009 5:00 am) Icon |
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Replying to: fordyfordconv (Sep 11, 2008 2:30 pm) 
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Replying to: jrcee (Jan 14, 2009 7:02 am) look at this bulletin: #PIP4435B: Phasing Drone Moan Or Vibration At approximately 50MPH Or 1200-1300 RPM - keywords accelerate light throttle - (Sep 5, 2008) Subject: Phasing Drone, Moan, or Vibration at Approximately 50 MPH or 1200-1300 RPM Models: 2008-2009 Cadillac CTS --------------------------------------------------------------------------------- - This PI was superseded to update model years and EVA diagnostics. Please discard PIP4435A. --------------------------------------------------------------------------------- - The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI. Condition/Concern: Some customers may comment of a boom, moan or vibration during light acceleration which phases in and out in intensity. The condition may be most noticeable at about 50 mph (80 kph), or 1200 - 1300 rpm, and occurs over a speed range of 3 to 5 mph (5 to 8 kph). This condition can be caused by the rear axle assembly responding to frequencies generated by the transmission when the Torque Converter Clutch (TCC) is engaged. Recommendation/Instructions: Perform the procedure in SI Document ID 1578733: "Vibration Analysis - Road Testing". This condition can be identified as a third-order engine disturbance by using the J 38792-A, Electronic Vibration Analyzer (EVA) 2. Verify the concern by duplicating the condition and then commanding the TCC off with the Tech 2. If the condition is verified, it may be reduced or eliminated by indexing the propshaft. Ensure that the rear axle damper is in place and not grounded out. If the damper is in place and indexing the prop shaft does not eliminate the concern do not attempt any further repairs at this time. Engineering is aware of this concern and is developing a repair at this time. Further repair information will be available when a procedure is developed and verified. Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. ### now with all this said..supposedly there is another PIP out stating GM is aware of the problem and working a fix...and to not attempt any repairs..but no one has seen it yet?
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About once every couple of months my CTS has automatically locked its doors. Each time I have noticed this has been in the garage. Well, the other day I was standing by the car as my wife pushed the garage door open button and I saw the doors lock. Periodically there must be a frequency interference. Problem solved. |
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