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Username Post: Blinker Issue        (Topic#359477)
Blueseasons 
Contributor
Posts: 158

Reg: 10-13-11
01-15-20 03:55 PM - Post#2784444    

The right turn signal blinks faster than the left. I'm aware that is usally caused by a burnt-out bulb but all bulbs are working. Does failing blinker relays cause this problem? 88k1500.



Edited by Blueseasons on 01-15-20 04:29 PM. Reason for edit: No reason given.

 
rockfangd 
"7th Year" Gold Supporting Member
Posts: 2857
rockfangd
Age: 33
Loc: Utica ny
Reg: 04-13-10
01-15-20 06:30 PM - Post#2784453    
    In response to Blueseasons

If it is the 88 it will only have a flasher under the dash at the fuse box.
I would inspect the taillight unit on the side that flashes fast

Old School GM fan FOREVER


 
Blueseasons 
Contributor
Posts: 158

Reg: 10-13-11
01-16-20 04:59 AM - Post#2784467    
    In response to rockfangd

I did. I took the board out swapped out bulbs. From what I can see the board is good. Its not gooped up with any grease. All the sockets are clean. That relay is replaceable I assume?



 
doubleE 
Valued Contributor
Posts: 3872

Loc: Eagan MN
Reg: 06-02-03
01-16-20 04:02 PM - Post#2784497    
    In response to Blueseasons

Speed of the flashing is dependant on the current flow through the flasher. Since one side is faster than the other would indicate more current flow on the fast side than the slow side as a higher current flow speeds up the bi-metallic operation. Causes for this... different bulb types or more/less number of bulbs between the two sides. Or possibly a bad wire restricting current flow on the slow side.

First step I would do is check all bulbs for being same type (and not burned out). These 2 filament bulbs are not that expensive, just replace them all front and rear.

Eric

Proud owner of My Blue 62 Impala SS


 
rockfangd 
"7th Year" Gold Supporting Member
Posts: 2857
rockfangd
Age: 33
Loc: Utica ny
Reg: 04-13-10
01-16-20 07:11 PM - Post#2784509    
    In response to doubleE

Are both bulbs working in the front marker lamps?

Old School GM fan FOREVER


 
Blueseasons 
Contributor
Posts: 158

Reg: 10-13-11
01-17-20 08:12 AM - Post#2784527    
    In response to rockfangd

All the bulbs in all the lights are working. The front signal light has 2 bulbs and the side signal light has one. All the bulbs in the rears work. The bulbs that are installed have been there for many years. This issue just started so I dont think they are the wrong bulbs. My other vehicle is a 2000 Jeep Grand Cherokee. They have a chronic problem with rear circuit board failure over time as the heat from the incandescent bulbs eventually warp and deform the boards. In that case, the bulbs either dont work at all or work intermittently until you replace the circuit boards. The GM boards are designed differently,much stronger and the bulbs are old school twist and lock,so I cant see that being it. My experience with flashers has been the signal light remains constant when they fail. I have already swapped out said bulb, I guess I can replace them all and see if anything happens. They do blink, just faster on one side, so there is no safety or legal issues. Thanks all.



 
bowtie44s 
Valued Contributor
Posts: 4274
bowtie44s
Age: 37
Loc: wv
Reg: 08-29-12
01-17-20 12:56 PM - Post#2784546    
    In response to Blueseasons

I was going to say, the front one can fool you. If a bulb is burnt out, the front blinker flashes when you check it but you will still get the hyper flash. Sounds like you have already checked both front ones.

Jeff

'88 Chevy K3500, aluminum head roller cam 511inĀ³ stroker 10.5:1 compression, 96 NV 4500, 94-98 grille, 305/70-16 (33x12) BF Goodrich KM2s, 91 cluster swap


 
doubleE 
Valued Contributor
Posts: 3872

Loc: Eagan MN
Reg: 06-02-03
01-17-20 04:37 PM - Post#2784562    
    In response to Blueseasons

Good news that all the lamps are working. So would you say the "slow" side is flashing at a normal rate or is the "fast" side flashing the normal rate? That can get you to concentrate on the side with the fault.

Sounds like none of the bulbs have been replaced since the problem started and since they all work I would next suspect a partial bad connection on the side that's acting up.

Proud owner of My Blue 62 Impala SS


 
Blueseasons 
Contributor
Posts: 158

Reg: 10-13-11
01-18-20 09:35 AM - Post#2784591    
    In response to doubleE

Yes. Drivers side flashes normal. Passenger side is faster than then norm. I'm 70. I cant remember all the cars I have owned. This issue is typically just a burnt out bulb and easy to fix. However, back in the day many of the operations were on the dash, separate switches, not combined in the stem on the column. I'm wondering if the wiring in the stem might be bad. I have already swapped bulbs in the passengers side taillight. Since the turn signal work, the faster blinking is just a nuisance. I thought I may have overlooked something and sometimes similar problems are consistent in models.After all,this is a 31 year old truck. The original starter crapped out just 2 years ago and I'm still driving on the stock brake shoes on the rear brakes. Its has its moments. When I turn hard left sometimes, like a U Turn,or hit a bump in the road just right, the blower motor turns on by itself. I have to hit the AC button to get it to stop. It doesn't turn off even when i turn the engine off. Its done that for the 11 years that I have owned it. I bought it from a friend, whos dad had recently passed. When that happens I think of him and reminded that maybe his ghost haunts the truck.



 
junkman104 
Frequent Contributor
Posts: 1479
junkman104
Age: 60
Loc: Murphy N.C.
Reg: 01-25-14
01-18-20 03:45 PM - Post#2784610    
    In response to Blueseasons

I think you have a bad ground on the front or rear.



 
Blueseasons 
Contributor
Posts: 158

Reg: 10-13-11
01-24-20 10:15 AM - Post#2785074    
    In response to junkman104

I did check and clean the rear ground, the one near the spare. I swapped boards and it doesnt work on the drivers side either. At this point Iam assuming its the board. I ordered a cheap one from Ebay. Bummer is its the newer type with the plug in bulbs. Not a biggie but I'd like to keep this truck as stock as I can. If anybody has a line on the older board with the twist sockets let me know. I will check in if this fixes it.



 
rockfangd 
"7th Year" Gold Supporting Member
Posts: 2857
rockfangd
Age: 33
Loc: Utica ny
Reg: 04-13-10
01-24-20 05:53 PM - Post#2785102    
    In response to Blueseasons

So when you swapped the left and right the problem followed?
If so then you have found your problem.
It is hard to explain resistance and amperage unless it is fully understood.
Just because a bulb lights up does not mean the connection is 100%
It may be 100% until the load is applied which makes the bulb light, but then once the load is powered the amperage drops fast enough to make it think there is a outage.
In all my experience I have seen this quite a few times

Old School GM fan FOREVER


 
Blueseasons 
Contributor
Posts: 158

Reg: 10-13-11
01-26-20 01:34 PM - Post#2785223    
    In response to rockfangd

Yes. I would not have suspected the board would be bad. I did receive the new board and it did not fix my problem. Wilts plugging in the new board I noticed that the bulb worked correctly for a second. I found that if I try and bend the "female plug" on the harness a certain way. As if I were trying to fold it in half, the bulbs worked correctly. So apparently there is a contact issue within the plug. I was able to wedge a toothpick in between the plug and the connection at the board to maintain contact until a new female plug gets here. When it does, I will splice it in and we should be okay.



Edited by Blueseasons on 01-30-20 09:41 AM. Reason for edit: No reason given.

 
djackson210 
Poster
Posts: 71

Age: 36
Loc: San Antonio, Texas
Reg: 01-31-19
02-22-20 02:02 PM - Post#2787063    
    In response to Blueseasons

A forum search brought me here with a similar issue. My left blinker would hyper flash, but all bulbs were working. And it would only occur when the headlights were on, or the parking lights. A new bulb fixed my issue. There was no visible damage to my old bulb, but I guess when the second filament would receive power it was too much for the weak bulb. So definitely try replacing the bulbs, it's worth a shot!

'91 Chevy C1500 SC LWB
'00 Chevy C2500 CC SWB


 
Blueseasons 
Contributor
Posts: 158

Reg: 10-13-11
02-24-20 08:54 AM - Post#2787200    
    In response to djackson210

Mine was definitely the plug. I spliced in a new plug and I am all good now.



 
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