Question about 2006 Pontiac G6

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WILL A BAD BATTERY MAKE THE CHECK ENGINE LIGHT COME ON ?

CHECK ENGINE LIGHT COMES ON THE CAR WONT ACCELREATE BBUT WILL STAY STARTED .. & WILL ONLY GO ABOUT 10 MPH . DICONNECTED THE BATTERY FOR 5 MIN & IT WOULD ACCELERATE BUT THE CHECK ENGINE LIGHT STILL IS ON WILL A BAD BATTERY CAUSE THIS ?

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  • 26 Answers

Doubt it, it could be the ECM, throttle position sensor, plugged catalytic converters and on and on.

Posted on Jan 30, 2015

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Posted on Jan 02, 2017

  • 48 Answers

SOURCE: the car will not accelerate;

this sounds like 1 of 2 possible problems.
a bad headgasket or a clogged catalytic convertor. i would lean more towards the convertor

Posted on Jul 16, 2008

philriden
  • 146 Answers

SOURCE: 2002 pontiac sunfire has check engine light

Your problem is typical for these cars. The throttle position sensor is bad. Go to Auto Zone and have them check the codes to confirm this. i've seen this many times, that's usually the problem. It makes the car feel like the brakes are on. Hope this helps. Let me know. Phil

Posted on Jan 16, 2009

  • 87 Answers

SOURCE: I have pontiac sunfire 96 model 2.2L engine. At

check to see if valve cover gasket is leaking oil onto spark plugs...causing a misfire; if so replace valve cover gasket; spark plugs and spark plug wires.

Posted on Aug 02, 2009

KCGTODAD
  • 169 Answers

SOURCE: Transmission issue? Or worse?

Hello! Although the symptoms you've described could be a result of quite a few things, I have a few questions that might help determine your problem.

1) What year/make/model did the new transmission come from?
2) Is the SES (Service Engine Soon) light on? Is it blinking?
3) Was this transmission a rebuilt or used unit?
Some possibilites:
- you could have a faulty TPS - or Throttle Position Sensor.
- you could have a problem with the input shaft piston being worn. (Hence the used vs. refurb trans question). Once the inner sealing area wears it can prevent the inner lip seal for the piston from sealing properly. You may find that revving the engine up will finally get the car to move and it will BANG into gear. This is because the pump in the transmission is working harder and moving more fluid thus allowing the added fluid to overcome the leak which prevented the clutch from either initially applying or staying applied. Another area of concern that causes this is a boost valve in the valve body, not near as common but it can cause this problem on a lessor scale.

- Trouble Code P0742 TCC Stuck ON:
When this trouble code is set the pcm will command max TCC and lock adaptive shifting. This code can be broken down into three potential problem areas as found to be common in the field.

1. This problem can be a mechanical problem. Possible causes of this could be a bad or stuck TCC switch that signals the pcm of current TCC operation. Another cause though not common is a stuck TCC switch or apply valve. If it is physically stuck in the wrong position it can cause the TCC to be stuck on all the time and even kill the engine when the vehicle is put into gear.

2. This problem can be found to be an electrical problem. If the wire from the TCC pressure switch to the pcm is grounded anywhere in the path it can throw this code. This could be a wire shorted inside the trans on the internal wiring harness or the actual engine wiring harness. If the wire is grounded the pcm thinks that TCC is on when it shouldnt be and will throw the code.

3. This problem can be a hydraulic problem. This is the most common cause of this code that I have found and stems back to a clogged TCC solenoid, not because it failed. Excessive debris in the transmission or a failing torque converter lockup clutch can cause the solenoid to have debris stuck inside and this causes a restriction in fluid flow through the solenoid. If the solenoid can not bleed off the pressure the TCC can be stuck on. If the wrong TCC solenoid is installed during an overhaul this problem can also arise as a late 4L60E solenoid is identical but does not operate the same and acts like a clogged solenoid. As mentioned in problem #1 a stuck TCC apply valve is a physical problem but causes a hydraulic problem because the fluid pressure will not properly bleed off because the valve is stuck in the wrong position instead of being able to move freely in the bore of the valve body.
Above are the common causes of this code, there are other possibilities but those are what generally causes the fault. A thorough diagnosis is the only way to determine what is really at fault and a new TCC solenoid should never be assumed as the actual problem until verified.


HTH - and thanks for using FixYa!

-KCGTODAD

Posted on Feb 02, 2010

Testimonial: "Excellent feedback, thanks!"

johnjohn2
  • 5763 Answers

SOURCE: engine wont stay on when started unless you step

Okay, lets start with you checking the fuel preasure regulator, this is a common problem with these the regulator leaks and the vac line connected to it starts sucking gas into the intake, this causing it to run rich and depending on how bad the leak is it will stall engine at idle, remove the vacuum hose from regulator and start engine then see if gas shoots out the vac connection on the regulator, if it does then replace regulator, hope this helps.583ec1c.jpg

Posted on Oct 18, 2010

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