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Cadillac engine repair questions and answers

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  • gary
    gary - 1999 Cadillac DeVille - Engine - 11/25/2014
    Wont start battery good .remote will lock doors but wont blow horn or flash lights
    info system says starting disabled.also says problem with security system engine may not restart
     
    • judd0081
      11/25/2014 judd0081
      The starting disabled icon is a visual indication that something in the cars antitheft system is failing. In most GM cars and trucks there is a hidden system that most people are unaware even exists. From the moment you put your key in the ignition, there begins a constant line of communication between your key's security chip or transponder, to the ignition's lock cylinder, and then to the car's TDM (Theft Deterrent Module). These 3 parts are in CONSTANT communication. If the key is in the ignition, then these parts are sending signals to each other. The security light illuminates when that signal gets broken, even just for a second. When the signal breaks, the car misinterprets this as an attempt at theft and goes into antitheft mode. The car thinks its being stolen or hotwired because it is not getting that signal from YOUR specific key. This is why the security light turns on and shuts down your vehicle. This link explains it pretty well.

      http://www.diy-gm-security.com/
  • John F. Loerop
    John F. Loerop - 1997 Cadillac DeVille - Engine - 11/22/2014
    The digital dash display goes blank while driving down the road. After a number of miles it comes back on again.
    A local auto electric shop checked it out and said every thing else was working normally. They suggested that we should replace the dash cluster with another one and see if the problem goes away. We did that , and the blank display persisted even with a ...
     
    • CVO
      11/22/2014 CVO
      Purpose: The alternator generates direct current for recharging the battery
      and for powering vehicle electrical loads.( such as an instrument clusters ), that my thoughts.
      CVO
      11/22/2014 CVO
      Check any loose wiring around the alternator, worst case scenario, try a new alternator.
  • Dennis
    Dennis - 2003 Cadillac DeVille - Engine - 11/19/2014
    Car revv's up REAL high while in park, but spits & sputters while driving
    I have to keep rpms up to drive...so I don't drive it. It doesn't matter when, always the same. Feels like it will conk out when at red light etc. No check engine lite comes on.
     
    0 answer
  • jacobmcdonald
    jacobmcdonald - 1997 Cadillac DeVille - Engine - 11/17/2014
    Why when turning on in a.m it takes ten tries and sound like its choking or wanting to backfire ??
    It has 100,000 miles. It hesitates when I hit the gas pedal right after coming on like it shudders and chokes like its sounding like its gonna backfire. Even while driving if I hit the gas pedal to speed up quickly it hesitates badly. I have to ease up before it'll ...
     
    0 answer
  • jacobmcdonald
    jacobmcdonald - 1997 Cadillac DeVille - Engine - 11/17/2014
    Turning car on takes alot of tries before it starts sounding like its choking and sounds like wants to backfire??
    Its in the morning when it occurs. Has 100,000 miles. Also when driving and I hit the gas at a turn it hesitates real bad, I have to ease up on the gas pedal before it'll pick up some speed. In the mornings it always sounds like its choking and wanting to backfire ...
     
    0 answer
  • Passion91
    Passion91 - 1998 Cadillac Catera - Engine - 11/17/2014
    I replaced my battery and my alternator. and my battery is still dying, now its completely dead and wont take a jump
    i was told the voltage regulator was going out, so i replaced the alternator, and it still not charging the battery after being replaced. what can the issues be?
     
  • anthonyfancher21
    anthonyfancher21 - 2002 Cadillac Seville - Engine - 11/8/2014
    My car started knocking suddenly. Only knocks when accelerating not in Neutral or park.
    Sounds similar to a coke can in a bicyle tire spoke.
     
    0 answer
  • AMFleetwood
    AMFleetwood - 1983 Cadillac Fleetwood - Engine - 10/30/2014
    Cadillac fleetwood brougham electrical issue
    My cadillac has just recently(as is driving home from work) started acting like the alternator isnt working, and I just got a service soon light on the dash board. The no charge light hasnt come on and I know the bulb isnt blown, but I managed to limp my car home ...
     
    0 answer
  • carl rowe
    carl rowe - 1997 Cadillac Eldorado - Engine - 10/30/2014
    Trying to find ground wire on gas tank
    gauge not working properly
     
    0 answer
  • pbyrd1
    pbyrd1 - 2002 Cadillac DeVille - Engine - 10/26/2014
    Complications after reseal
    88k miles, 2002 northstar, had reseal done in Jan 14 - came home very noisy (valve / lifter type noise upon acceleration) and running rough. Immediately back to shop- was told that computer had to be told to resynch the cam and crank. Noise persisted - was told ...
     
    • alex
      10/26/2014 alex
      what all did they re seal . there is only 2 places for the engine to pull that much oil either the rings or the valve and valve guide. from the knock sound you heard under a load i would say the ring grooves in a piston are broaken. have the shop do a leak down test and they will know if it is a valve problem or a piston problem.
      alex
      10/27/2014 pbyrd1
      Thanks, will offer this suggestion.
  • Dspeck
    Dspeck - 2001 Cadillac DeVille - Engine - 10/25/2014
    I Was inspacting my blower motor I disconnected the relay and what I believe was the power source to the motor I believe
    I have a bad blower motor so I reconnected the wiring and then tried to start my car it would not start it was reading that I have no gas when I know I have gas my head lights won't come on I can not pop my trunk I can not open the door to where I put in gas at I ...
     
    0 answer
  • Dspeck
    Dspeck - 2001 Cadillac DeVille - Engine - 10/25/2014
    I Was inspacting my blower motor I disconnected the relay and what I believe was the power source to the motor I believe
    I have a bad blower motor so I reconnected the wiring and then tried to start my car it would not start it was reading that I have no gas when I know I have gas my head lights won't come on I can not pop my trunk I can not open the door to where I put in gas at I ...
     
    0 answer
  • Jrob
    Jrob - 2000 Cadillac DeVille - Engine - 9/30/2014
    My engine is overheating after driving for a few minutes.
    The dash is saying add coolent.
     
    • alex
      9/30/2014 alex
      start by adding coolant see if you can find where the old coolant went it will leave a white build up. if you dont see a leaky spot check you engine oil unless it was changed a day or two ago it should be black if it is the color of coffee with cream in it either the head gasket is leaking or the head is cracked. if it overheated and blew out the antifreeze i would start with a thermostat and if that doesnt get it replace the water pump.
  • RJS3679
    RJS3679 - 2011 Cadillac CTS - Engine - 9/22/2014
    If I installed a 3.6L mass airflow sensor on my 3.0L would it cause a check engine light?
    my 3.0L is fitted with an aftermarket air intake system for a 3.6L, therefore installing a mass airflow sensor from a 3.6L would make it easier to have the sensor fit into the intake system.
     
    • Jimm
      9/21/2014 Jimm
      Yes, the 3.6L MAF sensor will cause the fault codes / check engine light.
      Jimm
      9/21/2014 RJS3679
      thanks, would you happen to know if a 3.0L MAF sensor would mount into the tube the 3.6L MAF sensor is installed into? I've been researching that myself and haven't been able to find much on it.
    • Jimm
      9/22/2014 Jimm
      The 3.6L MAF sensor = AC Delco part # 2134250, and GM #15875837, and the 3.0L MAF sensor = AC Delco part # 2134343, and GM #10393948.

      Two different calibration sensors for two different engine sizes - not interchangeable.
  • rod
    rod - 2003 Cadillac Escalade - Engine - 9/18/2014
    Can hear and feel air blowing after truck turned off and key out
    Can feel air on drivers side by feet. Went to dinner cameout truck wouldnt start. Got a jump it started got home key out air blowing again . Any ideas and is it safe to keep in garage overnight
     
    0 answer