Question about 1999 GMC Sierra
Posted by Anonymous on
a 6ya expert 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 repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
SOURCE: service engine light staying on
Hello tdamm...No...the service engine soon (SES) light on your yukon is not telling you to change the oil.
This is a warning light that is illuminated when there is a problem affecting the Emission system and the engines computer management (ECM) has detected it from a fault. It could be something as simple as a loose or defective gas cap. If the SES light is blinking, it's more serious....
The yukon needs to be connected to diagnostic equipment (scanner) for fault diagnosis.
You can go to autozone they will hook up an OBD II scanner to your vehicle and explain the codes to you.
Good luck...i hope this helps and will fixya up.
Posted on May 25, 2009
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
Wheel speed sensors misadjusted, damaged , or metal shavings and other debree, since they are magnetic can give false readings from one of the wheel circuits. Over sized tires can give of false speed readings as well. there are many other causes including bad relay, control module, e.t.c. It is best to have the proper scan tool to diagnose an ABS problem
Posted on Jul 09, 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
Tips for a great answer:
Mar 27, 2012 | 1999 GMC Sierra 3500
Sep 06, 2011 | 1998 GMC Sierra
Please see my tip at http://www.fixya.com/cars/r5932051-check_engine_light_check and let me know if you have questions.
Sep 22, 2010 | 1993 GMC Sierra
Jun 23, 2010 | 1999 GMC Sierra
May 14, 2010 | 1999 GMC Sierra
Jan 14, 2010 | 2004 Chevrolet Silverado
Jan 14, 2010 | 1999 Chevrolet Silverado 1500
Jan 05, 2010 | 2000 Chevrolet Silverado
Aug 24, 2009 | GMC Sierra 1500 Cars & Trucks
May 25, 2009 | 1999 GMC Yukon Denali
459 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: