Question about GMC Sierra 2500HD
Posted by Anonymous on
a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Disconnect the battery for a minuit and turn on the light's to power down any electrical power. Reconnect the battery and that should clear the "servie engine light soon",but if there are any DTC codes, the "Service engine light" will come back on.
On board diagnostic (OBD) was designed on vehicles equipped with electronic fuel injection so you can generally retrieve the codes yourself. No need buying a scanner or running to any parts stores to check the Engine Light. This system is called obd1 and applies to most vehicles made before 1995 for domestics and 1993 on imports.
For GM domestic vehicles made before 1995, the diagnostic connector is located under the dash panel by the driver side. To get the check engine codes to flash in your dash panel, use a jumper wire or a paper clip and connect terminals A and B of the diagnostic connector. Turn your ignition key on with engine off and the codes should start to blink. All codes should start with code 12 which is one long flash followed by 2 short flashes. This code 12 means the diagnostic system is normal and will repeat itself continuously if there are no trouble codes. Otherwise, code 12 will flash 3 times before flashing the fault codes.
the codes can be erased or cleared by disconnecting the battery negative terminal for 1 minute and reconnect. Just make sure to check your service manual in case you have electronic equipment such as radio or clock that needs reprogramming in which battery disconnection is not recommended. Finally after performing repairs on the culprit code, always go for a road test to confirm if the problem is fixed.
Good luck and hope this help, here is a link to the DTC codes. http://www.gmtuners.com/OBD1_DTC.htm
Posted on May 08, 2009
This could be a number of things, that is why it is a good idea to have the engine codes read which many part stores offer for free.
The service engine light will go off if there is vaccum leaks, faulty sensors or circuits, or any electrical problems
Posted on Aug 24, 2009
Turn the ignition on and within a few seconds slowly pump the gas pedal three times. A message displaying "oil life reset" should show up in the drivers information center. If you have the "newer" driver information center look for an "i" button and scroll through it until you see "oil life **%" displayed. At that point press and hold the reset button until it resets to 100%. Should take about 10 seconds of holding the button.
There should be instructions on how to reset it in the owners manual if this doesn't help. Good luck.
Posted on Oct 06, 2009
if there is cover under the engine remouve and look for bolt not securing anythingremouve slowly
Posted on Nov 02, 2009
Testimonial: "Thank's there ia a cover underneath but right next to the filter bottom of pan on passenger side looks like oil drain plug."
Defrost is the default position. Is the control a autyomatic temperture control unit? ( you set the temp and select automatic) if it is the system is completely electronic. You push the buttons and the control still says defrost or can you select something else and the control shows it but it just keeps coming out the defrost? If the control changes and the air comes out the defrost anyway and the cheack engine light isn't on, then the problem can be blown fuses or an air door actoater not working. Does the dash emit a clicking sound? if it does with the covers off the bottom of the dash reach around touching the different pieces till you touch the idem that is clicking. this is an acutor motor, or blend door motor. they have gears in them that wear out and break the motors aren't repairable and you just replace the ofending motor. the door that is moves can be stuck. and may have to be freed up with blaster, WD40, or other rust buster till it moves easy. maybe after getting the door to move smoothly you can get the old motor to move the door wiithout having to install a new one.
Posted on Jan 06, 2010
Tips for a great answer:
May 23, 2016 | Dodge Ram 1500 Cars & Trucks
Jan 30, 2018 | 2009 GMC Sierra 1500
Nov 01, 2012 | 1994 GMC Sierra
Jul 10, 2012 | 2009 GMC Sierra 1500
May 04, 2011 | 2006 GMC Sierra 1500 2WD
Sep 27, 2010 | 2008 GMC Sierra 1500
Nov 05, 2009 | 2000 GMC New Sierra 1500
Nov 02, 2009 | 2008 GMC Sierra 1500 2WD
164 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: