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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

What is this discussion about? Cadillac CTS-V, Cadillac CTS, Sedan


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#2705 of 2757
Re: Tire Pressure [bingoman] by arby1
Nov 21, 2008 (10:45 am)
Reply

Replying to: bingoman (Nov 20, 2008 9:36 pm)

Thanks a lot for the info . My concern was that when the weather was warm the cold tire pressure was fine , but the pressure got lower because of the outside temperature getting cold . I guess that during warm days when my cold tire is at 35 , the pressure also increases a lot too while I am driving . Thanks again .
#2706 of 2757
visual difference between 3.6 and 3.6DI by topgun7
Nov 30, 2008 (2:37 am)
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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..
#2707 of 2757
Re: visual difference between 3.6 and 3.6DI [topgun7] by 150mphclub
Nov 30, 2008 (3:48 pm)
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Replying to: topgun7 (Nov 30, 2008 2:37 am)

There will be a small badge on the left side of the trunk lid that says "3.6 direct injection".
#2708 of 2757
All season wipers by dfusnik
Jan 09, 2009 (5:00 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?
#2709 of 2757
Re: All season wipers [dfusnik] by st4422
Jan 09, 2009 (7:46 pm)
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Replying to: dfusnik (Jan 09, 2009 5:00 am)

Valeo
 
Icon
#2710 of 2757
Re: Drivetrain Vibration Between 45 & 55 [fordyfordconv] by jrcee
Jan 14, 2009 (7:02 am)
Reply

Replying to: fordyfordconv (Sep 11, 2008 2:30 pm)

I have experienced this also. That is a perfect description of the noise that I hear around 40 mph. I just bought an 09 CTS V6 DI and it's perfect except for this odd noise/vibration around 40 mph. If I shift into the sport mode and downshift, it goes away. At first I thought maybe it was a tire balance issue, but I am now thinking it must be a drive shaft issue. I will continue to monitor Cadillac bulletins to see if anything comes out. Until then I guess I'll have to go slow or fast.
#2711 of 2757
Re: Drivetrain Vibration Between 45 & 55 [jrcee] by pao
Jan 14, 2009 (11:25 am)
Reply

Replying to: jrcee (Jan 14, 2009 7:02 am)

there have been some cases of rebalancing the drive shaft..some refer to it as drive train lash or clunk....do you have AWD or RWD?
 
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?
#2712 of 2757
Self Locking Doors by nathess
Jan 23, 2009 (8:29 pm)
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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.
#2713 of 2757
Re: Drivetrain Vibration Between 45 & 55 [pao] by jrcee
Feb 11, 2009 (7:29 pm)
Reply

Replying to: pao (Jan 14, 2009 11:25 am)

I have RWD. I took it into the dealer today and they said that they have attempted several, but have not had much luck. We'll see what happens with mine. I'm hopeful, but expecting it not to work. They just keep saying that Cadillac is aware and working on a fix. I just wish it would be quicker.
#2714 of 2757
Re: Drivetrain Vibration Between 45 & 55 [jrcee] by jrcee
Feb 12, 2009 (1:42 pm)
Reply

Replying to: jrcee (Feb 11, 2009 7:29 pm)

I hope this is good news. Although the dealer said they couldn't do anything, and I already have picked up my car, there seems to be a new bulletin out as of yesterday to address the vibration problem. It is #08-07-30-044A: Phasing Drone, Boom, Moan or Vibration at 80 km/h (50 mph) or 1000-1300 RPM with Torque Converter Clutch (TCC) Engaged (Reprogram TCM and Install Insulator Washers [On Vehicles Built Without Washers]) - (Feb 11, 2009). Apparently the insulator washers were part of the later built cars. They have to be added for VIN prior to 90159377, which mine is. I have a 2009, but I think it was one of the first built ones. I plan on having this done when I go back the next time. Until then, I'll keep my fingers crossed.

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