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Cadillac engine repair questions and answers

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  • AutoMD Member
    AutoMD Member - 2014 Cadillac SRX - Engine - 6/8/2014
    Starting car like its doen't fire up have to turn it off and restart
    some thing the engine light comes on and stay on until I reset code mi is 140,000 warm stopped once in a while 3 months ago some times engine light no other light come on
     
    0 answer
  • AutoMD Member
    AutoMD Member - 2008 Cadillac DTS - Engine - 6/8/2014
    Why do I feel a vibration on my accelerator when accelerating particularly when engine is cold?
    Mileage on vehicle is 56000 miles. When I first apply the gas I feel an intense vibration in the accelerator. It only lasts until I get to a speed of approximately 35mph then subsides. The problem usually occurs when the engine is cold. There are no warning or ...
     
    0 answer
  • AutoMD Member
    AutoMD Member - 1991 Cadillac Allante - Engine - 6/6/2014
    New alternator and amp gauge max's out
    dash computer also states electrical problem
     
    0 answer
  • AutoMD Member
    AutoMD Member - 1991 Cadillac Allante - Engine - 6/6/2014
    New alternator and dash amp gauge max's out
    dashboard says electrical problem
     
    0 answer
  • AutoMD Member
    AutoMD Member - 1996 Cadillac DeVille - Engine - 6/2/2014
    Need to re-set car back to on
    car overheated tried to start car I do believe the anti-theft came on an shut the car off how do I turn back on
     
    0 answer
  • AutoMD Member
    AutoMD Member - 2004 Cadillac CTS - Engine - 5/28/2014
    Why does my Cadi engine shut off randomly during commute??
    Steeringwheel + brakes lock after car shuts off randomly during drive with no control steering.
     
    0 answer
  • AutoMD Member
    AutoMD Member - 1987 Cadillac DeVille - Engine - 5/3/2014
    Engine stopped and won't start again.
    Hey guys, having a problem with my 87 Cadillac Deville and would love some help. I was driving on the freeway with no issues or warning lights of any kind when my car suddenly and without warning shut off. When this happened, a "Service Electrical System Soon" and ...
     
    0 answer
  • AutoMD Member
    AutoMD Member - 1987 Cadillac DeVille - Engine - 5/3/2014
    Engine stopped and won't start again.
    Hey guys, having a problem with my 87 Cadillac Deville and would love some help. I was driving on the freeway with no issues or warning lights of any kind when my car suddenly and without warning shut off. When this happened, a "Service Electrical System Soon" and ...
     
    0 answer
  • AutoMD Member
    AutoMD Member - 2007 Cadillac CTS - Engine - 5/2/2014
    Rpm surges while crusing
    Hello, I have a new to me 07 cts. The car drives and shifts fine, but I have noticed while crusing the rpms fluctate about 100-200 rpm. Even in cruise control I can see the flucuations. I was worried it was my transmission, but I can put the car in neutral, hold it ...
     
    • Jimm
      5/2/2014 Jimm
      There may be a fault code stored in the OBD memory which may not be displayed as a check engine light.

      First step - have any stored fault codes or check engine light scanned - for free - at any local auto parts store; Advance Auto, Auto Zone, NAPA, etc. Then, post a reply as 'add answer' with the specific code for more assistance.
      There are literally hundreds of possible fault codes and therefore numerous reasons for the fault code condition.
      This step is important - retrieving any stored fault code and relaying this detail - will provide good information to assist in diagnosing and repairing the issue you are having.

      Typically, the engine RPMs fluctuation would be caused by one or more of these possibilities; clogged fuel filter (replace the filter if over 24k miles since last service), vacuum leak at the engine, or maybe this GM TSB (technical service bulletin) regarding the TCM (transmission Control Module) may explain - the condition is known as shudder / chuggle;

      Note the abbreviation TCC = torque converter control (transmission uses the torque converter as hydraulic flywheel between the engine and transmission to transmit engine torque to drive the trans and drive wheels).

      Contact the local dealership for explanation of the specific TSBs, or your local trusted / reputable repair shop for the same information.

      Code: 06-07-30-020 TSB LP1/LY7 Intermittent Engine Chuggle at Highway Speeds During Light Throttle Load (Reprogram Transmission Control Module (TCM))

      PIP3456D PI TCC Drone Surge Shudder Or Chuggle - keywords 5L40E 5L50E automatic calibration converter engage torque

      PIP3456C PI TCC Drone Surge Shudder Or Chuggle - keywords 5L40E 5L50E automatic engage

      PIP3658B PI TCC Surge, Chuggle, or Fishbite 5L40E with V6 Engine - keywords miss shudder surge

      PIP3658A PI TCC Surge, Chuggle or Fishbite - keywords 3.6 5L40E LY7 miss shudder

      PIP3456B PI TCC Surge Shudder or Chuggle February 14, 2006

      PIP3658 PI TCC Surge, Chuggle, or Fishbite 5L40E with V6 Engine - keywords 3.6L LY7 miss shudder

      PIP3144A PI P0101 P0106 P0121 Poor Acceleration and Detonation in Gear - keywords chuggle converter drive forward fuel hesitate idle information launch load low misfire miss performance power reverse stall surge

      PIP3456A PI TCC Surge, Shudder or Chuggle - keywords 5L40E 5L50E automatic engage transmission

      PIP3456 PI TCC Surge, Shudder or Chuggle - keywords 5L40E 5L50E automatic engage transmission
  • AutoMD Member
    AutoMD Member - 2007 Cadillac CTS - Engine - 5/2/2014
    Rpm surges while crusing
    Hello, I have a new to me 07 cts. The car drives and shifts fine, but I have noticed while crusing the rpms fluctate about 100-200 rpm. Even in cruise control I can see the flucuations. I was worried it was my transmission, but I can put the car in neutral, hold it ...
     
    0 answer
  • Grambo
    Grambo - 2000 Cadillac DeVille - Engine - 4/24/2014
    I need to know what a "coil boot" is so I can determine if my estimated cost from the auto-shop is valid.
    I am a WIDOW and know nothing about cars. I just found this website and I tried to input info about the repair estimate given to me by the auto-shop but "coil boot" means nothing to me. My Cadillac has 114,000 miles on it and it's always been serviced regularly. ...
     
    • John's Auto Repair
      4/24/2014 John's Auto Repair
      This guy sounds a bit pricey, especially the parts costs. I would get a second opinion!
  • Grambo
    Grambo - 2000 Cadillac DeVille - Engine - 4/24/2014
    My question is "what is a coil boot"??? The reason I need to know this is to determine if the repair estimate is valid.
    My car has 114,000 miles on it but it's always been serviced. My check engine light went on and says "Service engine soon". I have an estimate of $288 for spark plugs, coil boots and, of course, labor. This shop recently charged me $773 to remove & replace coolant ...
     
    0 answer
  • AutoMD Member
    AutoMD Member - 2000 Cadillac DeVille - Engine - 4/12/2014
    I just bought a 2000 deville..the person i bought it from told me he was driving and the dash lights went heywire on it.
    the car has 170000 when i turn the key to start i get a black dash..car won't do anything. i have over 12 v everywhere. i have checked all the fuses and they all seem to be fine. there is no engine light on. it just has me stumped. i'm not a full fledged mechanic. ...
     
    • alex
      4/12/2014 alex
      check the ground. when i check them i leave it plugged in i poke t pins into the back of the connector. with digital things just a weak connection will make them not work. but with out the load of the component a voltmeter will still read 12 and your ground will ohm out fine but pluged in put your voltmeter on ground wire and ground with the other lead it should be very close to zero if there is more than a half a volt its a bad ground. more than likely its the gauge cluster but i like to prove it before i order parts. if you want to understand better why it needs to be plugged in to test power and ground google differance between potential and available voltage. also with computer controlled components test lights are horable for them they can fry circuits in controllers.
  • AutoMD Member
    AutoMD Member - 2002 Cadillac Seville - Engine - 4/12/2014
    My engine can't rev over 3000 rpm
    I replaced the air filter,MAP sensor,fuel pump and filter,throttle position sensor. It has black and blue smoke coming out of the tail pipe.
     
    • HouseCallAuto
      4/12/2014 HouseCallAuto
      What fault codes are stored? Checking for codes cannot be skipped. Replace the rubber seal between the throttle body and the intake manifold as they are almost all defective after 5 years.
  • AutoMD Member
    AutoMD Member - 2003 Cadillac Seville - Engine - 4/3/2014
    Coolant leaking due to warn gaskets. Please estimate the cost of repair
    It leaks only when cool [at night], intermitently, 3 times in the last 3-4 years. Oberflow tank and sseveral hoses were replaced. The above diagnosis was made yesterday, after the car stayed in the shop overnight. Because of extensive work and cost I'd rather ...
     
    0 answer