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Pontiac engine repair questions and answers

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  • Tom Hagerstrom
    Tom Hagerstrom - 2006 Pontiac Solstice - Engine - 5 hours ago
    What keeps battery dying if sets for over a week?
    i have had battery tested. No draw shown on battery testing device. Battery will be dead if not driven within one week.
     
    0 answer
  • Eddie
    Eddie - 2004 Pontiac Grand Prix - Engine - 9/15/2014
    I have a trouble code that reads PO480 cooling fan1 circuit malfunction 1 replace all my relays in the fuse box an reset
    I drove for awhile to make sure the computer reset but when I cut the car off the check engine light comes back on . I took it to a mechanic they tell me everything is working properly but the trouble code keeps popping up so it won't pass inspection
     
    0 answer
  • jc
    jc - 1990 Pontiac Grand Prix - Engine - 9/6/2014
    My car will idle rough when stopped and will only run by keeping rpm's up.
    It starts fine the first time in the morning. After that, you must push the gas pedal almost to the floor. I've replaced the idle air control motor, with no results.
     
    • CVO
      9/6/2014 CVO
      1. See this site and use their instructions to retrieve any existing codes, it might store in the engine control module .

      http://extreme-check-engine-light-codes.com...

      2. An odb-i emissions system operates in two modes....open and closed loop for fuel control. It is supposed to switch depending on driving conditions and engine parameters.

      Acceleration and idle until warm up to around 145 degrees is classified as open loop operation.

      It should operate in closed loop when in idle after proper warm up and at cruising speeds.

      The Power Control Module controls the fuel injectors by using signals from the engine sensors, like O2 , Mass Air Flow, Engine Coolant Temperature, and others to pick out the right value from the right look up table to use in the fuel injector pulse width calculation.
      Check the Oxygen sensor, it might not working at the closed loop for fuel control.
  • rennie2010
    rennie2010 - 2007 Pontiac Torrent - Engine - 9/5/2014
    Car makes Revving sound but gears are shifting fine
    I brought my car in for a well needed break change about a month ago and had my breaks rotars, and calipers changed. It was making a revving sound, but the mechanic said the transmission was fine, and that the revving was a result of the calipers needing to be ...
     
    0 answer
  • rennie2010
    rennie2010 - 2007 Pontiac Torrent - Engine - 9/5/2014
    I brought my car in for a well needed break change about a month ago and had my breaks rotars, and calipers changed. It
    mileage- 180 km the 'service stabilitrack' light comes on and off every few days
     
    0 answer
  • mike
    mike - 2006 Pontiac Grand Prix - Engine - 8/31/2014
    Engine slow to start.
    Past 2 days engine has turned over slowly before eventually starting. Once the car is started i noticed that my digital readout display on the instrument panel is not set to the screen where i normally have it. 107,000 miles on it.
     
    0 answer
  • Lingchow
    Lingchow - 2001 Pontiac Grand Am - Engine - 8/31/2014
    Why do Grand Ams overheat?
    My Grand Am overheats, I'm looking for a specialist with Grand Am's to tell me why mine and a lot of others Why it does that. 1. I had a mechanic take the heads off, and machined the heads and valves. 2. Replaced the head gasket (naturally) 3 New thermostat. 4 ...
     
    • Jimm
      8/31/2014 Jimm
      Nothing specific about GrandAms - same symptoms regardless of the vehicle model.

      The most common cause of overheating is because of an external leak from a water pump or a radiator or heater hose. The way to find the leak is to wait till it is overnight cold and maybe just pour water in and see if the leak is large enough to see it simply leak out from where it has a leak. if you pour in a half gallon or more and you still see no leak its time to pressure check the system.

      Here is a short list of possible causes for overheating;

      Low coolant level
      Leaking coolant
      Improper coolant concentration (not at recommended 50 / 50 mix of anti-freeze and water)
      Clogged radiator hoses
      Clogged heater hoses
      Clogged radiator passages
      Clogged heater core
      Faulty thermostat
      Faulty water pump
      Faulty radiator cooling fans
      Faulty radiator cooling fan switch (coolant temperature sensor)
      Faulty / worn serpentine drive belt
      Faulty / worn drive belt tensioner
  • Lingchow
    Lingchow - 2001 Pontiac Grand Am - Engine - 8/31/2014
    Whats wrong with Grand Am cooling systems?
    My Grand Am overheats, I'm looking for a specialist with Grand Am's to tell me why mine and a lot of others Why it does that. 1. I had a mechanic take the heads off, and machined the heads and valves. 2. Replaced the head gasket (naturally) 3 New thermostat. 4 ...
     
    • Jimm
      8/31/2014 Jimm
      The most common cause of overheating is because of an external leak from a water pump or a radiator or heater hose. The way to find the leak is to wait till it is overnight cold and maybe just pour water in and see if the leak is large enough to see it simply leak out from where it has a leak. if you pour in a half gallon or more and you still see no leak its time to pressure check the system.

      Here is a short list of possible causes for overheating;

      Low coolant level
      Leaking coolant
      Improper coolant concentration (not at recommended 50 / 50 mix of anti-freeze and water)
      Clogged radiator hoses
      Clogged heater hoses
      Clogged radiator passages
      Clogged heater core
      Faulty thermostat
      Faulty water pump
      Faulty radiator cooling fans
      Faulty radiator cooling fan switch (coolant temperature sensor)
      Faulty / worn serpentine drive belt
      Faulty / worn drive belt tensioner
  • Phil
     
    • AutoMD Member
      8/30/2014 AutoMD Member
      I think I may know the issue . its really common in gm cars. I have had it happen.. check out this site they explain the issue and how to fix it
      hope 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/
  • Lingchow
    Lingchow - 2001 Pontiac Grand Am - Engine - 8/28/2014
    Why do Grand Ams overheat?
    My Grand Am overheats, I'm looking for a specialist with Grand Am's to tell me why mine and a lot of others Why it does that. 1. I had a mechanic take the heads off, and machined the heads and valves. 2. Replaced the head gasket (naturally) 3 New thermostat. 4 ...
     
    0 answer
  • Eschmidt
    Eschmidt - 2003 Pontiac Grand Prix - Engine - 8/27/2014
    Routing diagram for fan belt
    I replaced the heater hose elbows. To do this I had to remove the tensioner assembly from the engine block. This included removing the alternator. One engine brace as well. I believe I've got the fan belt routed properly, I think. Was hoping someone had a handy ...
     
  • Tim
    Tim - 2001 Pontiac Grand Am - Engine - 8/25/2014
    Low coolant light comes on when i accelerate after a red light but goes away after a few seconds.
    So this just started happening today. The low coolant light comes on after i accelerate at a red light but goes away after a few seconds. When i got home i looked at the coolant tank but to be honest i can't tell if its low or not. It was still kinda dark out and ...
     
    0 answer
  • Phil
    Phil - 1999 Pontiac Bonneville - Engine - 8/24/2014
    Car has full power. nothing at all happens when you turn the key.held a wrench to the starter terminals And all i heard
    was a winding noise from inside the starter itself is the starter Bad???????
     
    0 answer
  • Jean
    Jean - 1997 Pontiac Sunfire - Engine - 8/15/2014
    Why does my car over heat
    25 hundered thousand miles
     
    • Jimm
      8/15/2014 Jimm
      The most common cause of overheating is because of an external leak from a water pump or a radiator or heater hose. The way to find the leak is to wait till it is overnight cold and maybe just pour water in and see if the leak is large enough to see it simply leak out from where it has a leak. if you pour in a half gallon or more and you still see no leak its time to pressure check the system.

      Here is a short list of possible causes for overheating;

      Low coolant level
      Leaking coolant
      Improper coolant concentration (not at recommended 50 / 50 mix of anti-freeze and water)
      Clogged radiator hoses
      Clogged heater hoses
      Clogged radiator passages
      Clogged heater core
      Faulty thermostat
      Faulty water pump
      Faulty radiator cooling fans
      Faulty radiator cooling fan switch (coolant temperature sensor)
      Faulty / worn serpentine drive belt
      Faulty / worn drive belt tensioner
  • AutoMD Member
    AutoMD Member - 1994 Pontiac Grand Am - Engine - 8/12/2014
    Why does my car die a minute or so after starting it ?
    After I start my car the engine slowly dies and stops running . If I start it again it will do the same , but if I go and push the gas it will go away and the car will then run fine . Why is this ?
     
    0 answer