Question about 2006 Chevrolet Uplander

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Right and left rear turn signals randomly quit working and then return to working condition. Is this a loose wire, bad bulb, or a bad flasher unit?

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It could be any of them.you most star by checking the wires they may not be making contac or a loose ground do the same with the bolt and use some electronic grease to avoid rust. finaly check the relay in the fuse box it migth getting hot,good luck

Posted on May 18, 2011

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My left turn signal recently stopped working. Before ceasing to work, the turn signal (just the left) would blink very rapidly (machine gun speed).


sounds like one of light bulbs was malfunctioning and caused the flasher unit to blink rapidly and iy burned out. Replace front and rear turn lite bulbs and see if flasher flashes. if not check fuse and replace fuse. If fuse okay replace flasher unit. Good luck

Jul 08, 2016 | 1997 Plymouth Voyager

1 Answer

Left bleaker and break light not working. Turn signal works bleaks faster than right side.


Has the vehicle been in an accident on the left rear side. First check the bulb to be sure it is not defective, trade it out with the side that works properly to test. If the bulb works well then My thought are you may have a shorted wire. The turn signal flasher works by heat build up within the flasher the heat is caused by the load of the bulbs, the load heats the metal spring causing it to open the circuit then as quickly as it cools down the circuit closes again lighting the bulbs.
There is also a possibility of a defect in the turn signal mechanism on the steering column. The turn signal switch on many models does three different things on many models that use the same bulb element / or bulb for brake and turn on rear of vehicle. It controls the circuit for brake light by sending power both left and right side rear when turn signal is in neutral position then when turn signal is in left turn the switch cancels brake light power to left side rear and supplies flasher power to left side while maintaining brake light supply to the right side rear, and so on opposite when the right turn is chosen on turn signal switch. The turn signal indicators on the dash normally run off the same circuit as front turn signal bulb only which is also controlled by turn signal switch. Front has turn signals but no brake light.
I think there is an additional load on the left side rear turn circuit and it could be either a wire that is shorted or the turn signal switch if the same bulb element is used for both functions.
Often times if trailer lighting is connected the flasher will also blink a little faster because of the extra load of additional bulbs.

Feb 15, 2015 | Cars & Trucks

1 Answer

88 Jeep Cherokee, left turn signals don't work. Right signals flash as they should. Emergency flashers work as well. When the left turn signal is activated, the dash arrow lights up, the front bulb lights...


Quite a puzzle you have that seems impossible, though such things weren't unusual in the old days of bimetal flasher units. The modern electronic flasher relay is designed to flash at a speed dependent on the amount of current drawn by the circuit so if a bulb goes out the speed doubles or thereabouts, giving the driver an indication something is wrong.
Broadly speaking the flasher unit will operate as it is designed within a current range so if there is too much current flowing or not enough it probably won't work at all.

The turn signal switch is usually a very reliable thing and as the left hand lamps light it is fair to assume it is working ok. If the switch is accessible it would be simple to measure the current being consumed by the circuit, which would be nearly 4 amps with the engine running at a fast idle. If it isn't then I suggest you revisit the lamp grounds and other connections.

My instinct is to suspect the hazard warning switch. It is often an unnecessarily complex switch and wiring arrangement and often responsible for turn signal malfunctions. Mostly operating the switch rapidly for a few minutes puts matters right, though if it doesn't I suggest you check the multiway connector behind the switch.

May 28, 2017 | 1988 Jeep Cherokee

2 Answers

My left turn signal is broken. it clicks really fast in the front, but not in the back of my car. I have replaced the fuse, and the bulb. what else can I replace to make it work?


You replaced the buld in the back? what that bulb connects into is called a socket replace the socket and signal and normal will return

Apr 30, 2011 | Saturn L-Series Cars & Trucks

2 Answers

Both of the rear turn signals stopped working at the same time, but everything else seems to work. Do you know what can cause this to happen? I changed one of the bulbs and it didn't work.


There is a turn signal flasher under dash...most have a flasher for the emergency signals and one for the turn signals...some have one flasher....but check fuses first...normally it is fuse burnt...if you can locate the flasher normally they will get abnormally warm when bad......it should look like a round or square silver shiney or black cube.........if these are good with ign.on hold turn signal lever down firmly ...if it works replace turn signal unit.....if none of this works you have to troubleshoot wiring...
...normally yellow wire is left turn and green wire is right turn...black or white is ground red is stop light....but normally it is a blown fuse or flasher.

Feb 19, 2011 | 2007 Ford Freestyle Limited

1 Answer

Left signal works right doesn't both brake lights do not work


you may have two or more problems
check flasher unit for turn signal trouble and the bulb and wiring if first two don't fix problem
it is possible that your turn signal switch in steering column may be bad

as for brake lights, it could be one of three problems
either brake light switch on brake pedal is not working or wire loose or wiring to lights could have either been broken or come loose-you may want to check both bulbs first-although this is rare but does happen

Aug 23, 2010 | Chevrolet Silverado Cars & Trucks

1 Answer

1996 chev pickup - left rear turn signal does not work. Front turn signal is blinking fast. Have replaced bulbs and the lamp bases in taillight section. Right side is working fine. Could it be the flasher?


no it can not be the flasher. if bulbs and socket is good in left rear u may have no power or ground. need to check wiring to that lamp. also fast blinking is a normal condition when you have a lamp out

Nov 19, 2009 | 1996 Chevrolet C2500

2 Answers

89 Toyota Pickup right turn signal doesnt work just buzzes


check all bulbs,inspect sockets for corrosion,rust ,or sighns of overload.follow wires and check connectors if all good ,replace the flasher ,,if that doesnt fix it ,the blinker switch in the steering coulmn would be next

Sep 22, 2009 | 1990 Toyota Pickup

1 Answer

Signal Lights - flasher...


Hi it sounds like the multifuntion switch
never had one on a monte carlo before but lots of grand am and malibu
hope this helps

Mar 23, 2009 | 2002 Chevrolet Monte Carlo

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