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Cadillac engine repair questions and answers

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  • lou
    lou - 1995 Cadillac DeVille - Engine - 9/29/2010
    Code 53 need to now what it means
    • Pave Low
      9/29/2010 Pave Low
      Code 53: "Distributor signal interrupt"

      The fix is to check and repair (if damaged) a wiring harness, or, replace the ignition coil(s).
      Pave Low
      9/29/2010 lou
      thank you for your help
  • pops62
    pops62 - 1999 Cadillac Escalade - Engine - 9/28/2010
    Vavle is knocking and how do i fix my self and how long will it take
    • vince^_^
      9/28/2010 vince^_^
      Valve job may take 9hours (estimated) for one side only and it will take 12 hours for both sides according to Chilton Labor Guide. Did you already check if the supply of your oil to your valve train is sufficient? Insufficient oil supply can also cause valve knocking.
  • alonzo d scales
    alonzo d scales - 1991 Cadillac DeVille - Engine - 9/27/2010
    Engine makes a noise like air coming from a module when it is turned off.
    engine makes a noise like air coming from a module when it is turned off.
    • Nissan Technical Advisor
      Can you rephrase the question? Did you mean when you turned off the engine, a sound like loose air is appearing?

      Check your belt maybe worn and your radiator fan.
  • Ron
    Ron - 1988 Cadillac Eldorado - Engine - 9/27/2010
    Why does my car hesitate when i step on the gas
    i put a fuel pump in and everytime i drive it bulks out but starts back up.
    • Nissan Technical Advisor
      I could be a clogged or collapsed PCV valve/hose. Also clogged or dirty fuel injector is another cause of this. Check your spark plugs, maybe it needs replacement also.
    • Pave Low
      9/27/2010 Pave Low
      Possible Causes of Engine Hesitation or Stumble:

      The first 4 are not applicable to you but may applicable to the other people reading this post.

      Dirty fuel injectors (cleaning the injectors often fixes this).
      Bad MAP (manifold absolute pressure) sensor.
      Bad TPS (throttle position) sensor
      Bad or dirty MAF (mass airflow) sensor

      Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
      Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
      Bad gasoline (fuel contaminated with water or too much alcohol)
      Sometimes, what feels like a hesitation is actually ignition misfire rather than lean misfire. The causes of ignition misfire may include:

      Dirty or worn spark plugs
      Bad plug wires
      Weak ignition coil
      Wet plug wires
  • D.C.
    D.C. - 1995 Cadillac DeVille - Engine - 9/27/2010
    I believe my blower has gone out, where are the relay fuse pannels located ?
    i am having problems getting heat/air to push into the car, i have a mini fuse pannel in trunk aswell as under hood driver side but no relays?
    • HouseCallAuto
      9/27/2010 HouseCallAuto
      The blower motor speed control is incorporated into the blower motor assembly. That is also the blower relay. There is also a 40 amp maxi fuse (fuse #4) in the fuse / relay panel just rearward of the washer fluid reservoir.
      9/27/2010 D.C.
      thanks ill check it out i appreacieate your help
  • ZFixer
    ZFixer - 2001 Cadillac DeVille - Engine - 9/26/2010
    How do I Replace the Radiator?
    Need steps and guide for removing and replacing Radiator in this vehicle.
    0 answer
  • tommy
    tommy - 2002 Cadillac DeVille - Engine - 9/25/2010
    Why dose my engin sputter hwile in gear and ideling
    when the car is running and in gear and at a stand still it feels like it is miss fireing .it all started when the top radiater hose blew after i changed the hose about 3to 4 days later the car started ideling ruff then it stoped and began sputtering like its miss ...
    0 answer
  • Bren
    Bren - 2001 Cadillac DeVille - Engine - 9/24/2010
    How do I increase the speed of the two fans in front of the motor?
    125000 mi. Alert stating transmisson is hot, need to idle engine. Had transmission fluid checked and ok, had a diagnostic test done and no codes came up. Driving 65 -70 mph, the heat gauge goes 3/4 over to the red mark and the alert comes on. Also the check engine ...
    • Nissan Technical Advisor
      Hi Bren, if DTC detects that fan is faulty, better to replace it, but check first it wiring connection, current maybe intermittent. Loose connectors or relay is faulty.
    • cadieman
      9/24/2010 cadieman
      push the off and warmer button on the a/c panel whenall segment are lit release. write all codes down we will go from their
  • AutoMD on Facebook
    AutoMD on Facebook - 1993 Cadillac Seville - Engine - 9/23/2010
    Oil not reaching rocker arms
    [from William Smith via Facebook] Oil has been changed twice in three months because there doesn't seem to be any oil getting to the rocker arms, as it is completely "dry" when the car is running and i'm looking into it to see if oil is spashing around? Could ...
  • John
    John - 1994 Cadillac Eldorado - Engine - 9/23/2010
    Why does my engine over heat
    i replace radiater water pump thermastate it doesnt smoke are miss it just sits and gets hoter and hotter it has 146000 miles on it it had problem when i got car
    • Rick
      9/23/2010 Rick
      check to see if your fans are working
      9/24/2010 John
      i checked the fans. The engine fans come on at 230 degrees. When i got the car i replaced the water pump the fans were corroded is it possible that the engine could be corroded on the inside?
  • mrhill
    mrhill - 1990 Cadillac DeVille - Engine - 9/22/2010
    My car keeps losing power when i turn it off at night.. why is this?
    • HouseCallAuto
      9/21/2010 HouseCallAuto
      If the battery is old and has a bad cell that can do that. If you know the battery is good then the next thing is to find out what is still using power when the vehicle is off. I find many bad radios as the cause so disconnect the radio fuse first and see if the battery remains OK.
    • cadieman
      9/22/2010 cadieman
      u have a parasidic draw on the battery. something is staying on. possiability the antena. disconnect
      post we can try to find it please give your feedback
  • ruth
    ruth - 2002 Cadillac DeVille - Engine - 9/20/2010
    Why does vehicle overheat after driving about an hour?
    • chet
      9/20/2010 chet
      check water leavel may need new thermostat
    • cadieman
      9/20/2010 cadieman
      most likely the fans are not oper properly
  • mrbiz68
    mrbiz68 - 1994 Cadillac DeVille - Engine - 9/18/2010
    Car will not drive faster than 49mph starts to bog down
    my car loses power when it reaches the speed of 49mph..
    • Richard Edwards
      9/15/2010 Richard Edwards
      Does it lose power or does it not change gear up to the 3rd gear or overdrive which would make the revs go way up you can check it by pressing the information switch until it shows the engine revs if the revs go way up check transmission fluid if it is okay I suggest getting the car to a transmission shop before it burns out the transmission.
      If that isn't the cause try checking the air filter as it could be blocked needing to be changed otherwise get a mechanic to run a check on the engine it could be choked up injectors or bad injector pump, either way it could cause engine damage especially if there isn't enough fuel getting through causing the engine to run lean it will eventually cause the valves to burn and that is a very expensive repair.
      Good luck,
      Richard E
    • cadieman
      9/18/2010 cadieman
      take the O2 sensor out then drive it if its good you need to replace the cat. converter