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Oldsmobile engine repair questions and answers

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  • Dave
    Dave - 1997 Oldsmobile 88 - Engine - 8/30/2014
    How do i kill the anti theft system?
    the anti theft system is always causing issues. i really dont care if its the reader, the vats modual or the keys' resistors i just want the thing disabled. ive been told there's a wire somewhere that when cut will let me start the car or a code that can be ...
     
    • DangerRanger30
      8/26/2014 DangerRanger30
      I just did this on my 1998 Olds Cutlass. take you dash bezel off from around the ignition/stereo. At this point you should be able to see the top of your ignition. You will see a plug on the top of the ignition with 2 wires going to it... a black wire and a yellow wire. ***with the car running*** clip the yellow wire. Your "Theft System" light will come on and stay on. This basically just through your theft system into a "safe mode". The light will stay on every time you start the car, but it will start every time. I did this on my car about 3-4 weeks ago and have not had a problem out of it since. Good luck :)
    • AutoMD Member
      8/30/2014 AutoMD Member
      I had the same issue.. check out this site.hey have a way to bypass it. its not a quick fix its permanent. I did mine and have had no issues, hope this helps. if u have any questions let me know

      The security, antitheft or lock picture/icon is a visual indication that something in the car's 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://vatspasslockpasskeysecurityhelp.yolasite.com/
  • Jimbo55
    Jimbo55 - 2000 Oldsmobile Silhouette - Engine - 8/23/2014
    I just replaced a bad lower intake manifold gasket and, after reassembly, the engine won't start.
    I replaced the lower intake manifold gasket and reassembled the engine however, now it won't start. I need some guidance on how to diagnose the problem and correct it.
     
    0 answer
  • AutoMD Member
    AutoMD Member - 2004 Oldsmobile Alero - Engine - 8/21/2014
    Why my car wont start? possibility it may be spark plugs?
    I went shopping one morning and when i was done and ready to head home, my car wouldnt start. The lights came on, radio came on, etc.. the car was turning over but not firing. We checked the fuel pump and fuel filter by a pressure gage. They were fine We checked the ...
     
    • AutoMD Member
      8/21/2014 AutoMD Member
      I don't think it is a spark plug issue... Are there any lights on on your dash?? if so check out this link.. I had a buick that this happened to... your car is also on the list for this malfunction..this site has a way to bypass it so your car will start again, I did it myself... let me know if this helps
      The security, antitheft or lock picture/icon is a visual indication that something in the car's 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://vatspasslockpasskeysecurityhelp.yolasite.com/
  • Wayne
    Wayne - 2001 Oldsmobile Alero - Engine - 8/21/2014
    Wont start and the battery will not turn over
    while driving it just died, has new battery but while trying to get it restarted ran it down.
     
    • AutoMD Member
      8/21/2014 AutoMD Member
      Is there any light on on your dash??? I think I may know the issue... this happened to my buick.. I did some research and I guess its very common in the gm cars.. look over this page and see if this is what your think it is.. Let me know if this helps! Good luck!
      The security, antitheft or lock picture/icon is a visual indication that something in the car's 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://vatspasslockpasskeysecurityhelp.yolasite.com/
  • RHendricks
    RHendricks - 1997 Oldsmobile Cutlass Supreme - Engine - 8/21/2014
    Problems starting-will click, then turn over, then die. Oftimes, clock will show reset to 1:00 a.m.
    The colder the car -- i.e., first thing in the morning, or after sitting for a long time -- the more it happens. You turn the key and it will simply click, then start to turn over. The engin will catch and when you release the key, it will die. You need up having ...
     
    • AutoMD Member
      8/21/2014 AutoMD Member
      I think I know what the issue might be.. Are there any lights on on your dash? this is a common gm thing it has to do with the security in the car..This happen to my buick and I took it in they wanted to charge me an arm and a leg. So I did some research and found this site.. it has a bypass and I did it myself... let me know if this helps! Good luck
      The security, antitheft or lock picture/icon is a visual indication that something in the car's 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://vatspasslockpasskeysecurityhelp.yolasite.com/
  • RHendricks
    RHendricks - 1997 Oldsmobile Cutlass Supreme - Engine - 8/20/2014
    Loud whining sound when the car is warmed up, especially on very hot days.
    On very warm/hot days, after the car is warmed up, you can hear a loud whine in the rear of the car. The hotter the day, the louder the whine. Doesn't happen when first starting the car; only when it's warmed up and on hot days. The fuel pump was replaced in ...
     
    0 answer
  • Ken
    Ken - 2002 Oldsmobile Alero - Engine - 8/14/2014
    Where is the fuel cut-off relay located on this vehicle?
    Is the relay a part of the fuel pump assembly - or located elsewhere on the vehicle?
     
    • jdl
      8/14/2014 jdl
      The fuel pump relay is in the under hood fuse box. Engine cranking did you visually check for spark at the spark plugs? Did you use a gage and check proper fuel pressure? Do you have an injector pulse, engine cranking?

      When you first turn on the key, no crank, can you hear the fuel prime for a few seconds?
  • Jonh
    Jonh - 1991 Oldsmobile Silhouette - Engine - 8/13/2014
    About the engine Oldsmobile 1991
    it run good when engine it hot.but when engine cool it runing no good ,why?
     
    • Jimm
      8/13/2014 Jimm
      Please add further description concerning...'not running good'? What does this mean? Post a reply and a detailed description of the following; engine speeds (RPMs) when the issue occurs, what driving speeds, when accelerating or up hill?

      Added description about the problem will help for diagnosis and problem resolution.
  • AutoMD Member
    AutoMD Member - 1988 Oldsmobile 98 - Engine - 8/11/2014
    How do I replace my temperature sensor on the engine?
    I need to replace my sensor, I believe. The water temperature sensor in the cab does not move. The check engine light is on and the mechanic told me the error message states the temperature sensor is bad. Is there a youtube for this?
     
    • CVO
      8/11/2014 CVO
      Coolant Temperature Sensor
      1988 Oldsmobile 98 3.8L FI OHV 6cyl
      The Coolant Temperature Sensor is located:
      Under hood, driver side, upper engine area, rear of water outlet, mounted in intake manifold.

      Disconnect the negative battery cable.
      Unplug the temperature sensor.
      Then, unscrew it.
      Reverse the removal procedures to install the new part.
      Connect the negative battery cable to the battery.

      Note: youtube doesn't have any video clips.

      CVO
      8/11/2014 CVO
      If the coolant temperature sensor doesn't have any sealing compound on it, use the plumbing teflon tape instead.
  • William Hall
    William Hall - 1990 Oldsmobile Cutlass Ciera - Engine - 8/11/2014
    When I start my car, it will start but then it shuts off.
    i put a computer in it but im thinking it is the fuel injectors
     
    0 answer
  • William Hall
    William Hall - 1990 Oldsmobile Cutlass Ciera - Engine - 8/11/2014
    When I start my car, it will start but then it shuts off.
    i put a computer in it but im thinking it is the fuel injectors
     
    0 answer
  • AutoMD Member
    AutoMD Member - 2004 Oldsmobile Alero - Engine - 8/7/2014
    Code reader shows EGR valve is stuck. How much to clean out or replace
    106,000 miles.
     
  • AutoMD Member
    AutoMD Member - 1998 Oldsmobile Bravada - Engine - 8/7/2014
    Is my VCM output blown?
    My problem is AC clutch output on VCM 1 is to ground (normal to engage clutch) with the car on all the time regardless of low or high pressure or even AC request. I verified AC request/High Pressure and Low Pressure Cycling switches both work by back probing. ...
     
    0 answer
  • AutoMD Member
    AutoMD Member - 1998 Oldsmobile Intrigue - Engine - 7/31/2014
    Driving car lost power, idles rough, still starts and stays running. Replaced 1-4 coil and 1-4 fuel injectors. New plugs
    After replacing injectors noticed injectors still not working. Car continues to run rough.
     
    • Chevy doctor
      7/31/2014 Chevy doctor
      I would check for catalytic converter back pressure. How is the fuel trim readings. No codes...wouldn't hurt to check compression. Make sure fuel pressure regulator is not leaking fuel through vacuum line.
  • AutoMD Member
    AutoMD Member - 1991 Oldsmobile Delta 88 - Engine - 7/28/2014
    What is draining my battery?
    Just recently my car has had a battery problem. We know the problem, but at the same time we don't. Its a brand new battery, and no apparent alternator problem, but it will drain overnight and be dead the next morning. We put the charger on it then the same thing ...
     
    • jdl
      7/28/2014 jdl
      How many wires on the sensor connector that you unplug? The idle air control connector has four wires. The throttle position sensor connector has three wires. I can't think of anything else electrical on the throttle body?

      I don't know about the squeal? Use a digital multimeter and check for voltage at the connector terminals, key off. Also, any other sensors that use a ref voltage, check for voltage at those sensors with key off. Usually, no ref voltage with key off.

      Also, check for applicable trouble codes. Your obd1 so you should be able to check codes, yourself. To check for codes, use a jumper wire between terminals A & B at the datalink connector. Turn key just until the dash lights come on, no further, then the mil on the dash starts flashing, you count the flashes to get the codes. Your looking for two digit codes.