Left Turn Signal/Brake Light issue..

itzmarko1 · 01-27-2008, 08:02 PM

Hey everyone..

I have a 2000 Silverado Z71 Ext. Cab...
I am have an odd problem with my left turn signal. When i turn the left signal on it works ok untill i press on the brake and then the turn signal stays on constant. Even if the vehicle is off, If i press the brake the left signal comes on, the light on the dash and the actual signal lights.

any ideas or help would be great.
thanks....

1979_4x4_Plow · 01-27-2008, 08:59 PM

have you had anybody stand behind the vehicle and check your lights? the lights back there for the brake/signal has a high/low brightness level (dual filament) sounds like you have a bad bulb.

junior3382 · 01-27-2008, 09:50 PM

And if that does not work, try the brake light sensor. It is located right on the brake pedal. I had the exact same issue with my S10. I thought I did it beating it up off road, and was afraid of what it was. Turned out to be a simple, inexpensive fix. Takes like two minutes to replace. Plow is probably right about the bulb itself, but if not, check there.

1979_4x4_Plow · 01-28-2008, 12:35 AM

one light being affected is usually a bad bulb or the fixture itself... i have come across a few that had bad fixtures

crabtruck · 01-28-2008, 04:23 AM

Might also be a defective flasher unit, check bulbs first, front and rear.

itzmarko1 · 01-28-2008, 06:53 AM

I have checked all the bulbs, and the right rear was blown but the problem still comtinued, so typical me I went to the auto store and changed every bulb front and back. Still nothing....

1979_4x4_Plow · 01-28-2008, 08:31 AM

does your bulb sit in a cap that twists into place with no wires? i know some of them taillight assemblys have like a circuit board that gets messed up in them is why i was mentioning the bulb or the fixture.

stumpuller454 · 01-28-2008, 09:52 AM

if you have a trailer plug check for corrosion, could be comming back through there, also check connections at distribution block (lh side of frame under truck facing backwards on a crossmember near rear of truck, connections could be bad, there

01-27-2008, 08:02 PM	#1
itzmarko1 Junior Member Join Date: Jan 2008 Posts: 2	Left Turn Signal/Brake Light issue.. Hey everyone.. I have a 2000 Silverado Z71 Ext. Cab... I am have an odd problem with my left turn signal. When i turn the left signal on it works ok untill i press on the brake and then the turn signal stays on constant. Even if the vehicle is off, If i press the brake the left signal comes on, the light on the dash and the actual signal lights. any ideas or help would be great. thanks....

01-27-2008, 09:50 PM	#3
junior3382 Senior Member Join Date: Mar 2007 Location: I live in south central PA, but grew up in Maine Posts: 2,937	And if that does not work, try the brake light sensor. It is located right on the brake pedal. I had the exact same issue with my S10. I thought I did it beating it up off road, and was afraid of what it was. Turned out to be a simple, inexpensive fix. Takes like two minutes to replace. Plow is probably right about the bulb itself, but if not, check there. __________________ Lets get some mud on the tires...eh?!?!? OWN: 1998 Chevy Blazer ls 4x4 4.3l Vortec V6 1998 Mazda B3000 SE 4WD 3.0L V6 3" lift 31x10.50 Liberator A/T's

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01-27-2008, 08:59 PM	#2
1979_4x4_Plow Senior Member Join Date: Dec 2007 Posts: 98	have you had anybody stand behind the vehicle and check your lights? the lights back there for the brake/signal has a high/low brightness level (dual filament) sounds like you have a bad bulb.

01-28-2008, 12:35 AM	#4
1979_4x4_Plow Senior Member Join Date: Dec 2007 Posts: 98	one light being affected is usually a bad bulb or the fixture itself... i have come across a few that had bad fixtures

01-28-2008, 04:23 AM	#5
crabtruck Senior Member Join Date: Jul 2007 Posts: 1,464	Might also be a defective flasher unit, check bulbs first, front and rear.

01-28-2008, 06:53 AM	#6
itzmarko1 Junior Member Join Date: Jan 2008 Posts: 2	I have checked all the bulbs, and the right rear was blown but the problem still comtinued, so typical me I went to the auto store and changed every bulb front and back. Still nothing....

01-28-2008, 08:31 AM	#7
1979_4x4_Plow Senior Member Join Date: Dec 2007 Posts: 98	does your bulb sit in a cap that twists into place with no wires? i know some of them taillight assemblys have like a circuit board that gets messed up in them is why i was mentioning the bulb or the fixture.

01-28-2008, 09:52 AM	#8
stumpuller454 Senior Member Join Date: Dec 2007 Location: Alberta Posts: 786	if you have a trailer plug check for corrosion, could be comming back through there, also check connections at distribution block (lh side of frame under truck facing backwards on a crossmember near rear of truck, connections could be bad, there