Question about 1999 GMC Suburban
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Posted on Jan 02, 2017
SOURCE: stereo wiring diagram
1999 GMC Sierra Truck Radio Wiring Guide
Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black/White
Car Radio Illumination Wire: Brown
Car Stereo Dimmer Wire: Gray
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue
Posted on Apr 15, 2009
I'am going to go out on a limb hear and assume that you need this due to the fact your tail lights quit working. This is a very common problem, and the circut board in the tail lamp seems to be the main problem in these. Most parts stores carry these at all times. If you need for other than this problem- please clarify
Posted on Aug 29, 2009
SOURCE: wiring diagram 2003 GmC Sierra
I need wiring digram for GMC 2003 SIERRA . I have the left head light working fine but the right I have no power to it. I have checked the fuses and relaysand so far have not found and broken or frayed wires.
Posted on Mar 06, 2010
The pick-up coil/stator located inside of the distributor is what generates the dwell signal that fires the ignition coil. Symptoms of a faulty pick-up coil/stator are as follows;
A rough engine idle.
Engine stalls out un-expectedly while running.
Engine stalls out after the engine warms up.
Engine will not start.
However, these symptoms are also the same for the ignition module located inside of the distributor except that a faulty module besides causing all of the above symptoms can also cause these additional symptoms to occur;
Engine will stall out after warming up for the same length of time, and almost on time like clockwork.
Engine will stall with climate or altitude change.
Engine spark but no fuel pressure.
Engine spark with fuel pressure but no fuel injector pulse.
If the ignition pick-up coil/stator is found to be faulty, then the ignition module should also be replaced, and the ignition module can be removed and most auto part stores will test the ignition module for free.
Posted on Jun 17, 2010
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