New turn signal switch, new brake light switch, still no brakelights on 65 Jetstar 88
#1
New turn signal switch, new brake light switch, still no brakelights on 65 Jetstar 88
OK I have replaced both turn signal switch because the taillights both upper and lower were turning, there is no light on the dash turning for the right side so I am guessing that is the bulb and the right side rear turn signals only flash 3 or four times the stop. The driver's side is ok, but I am still not getting any brak stop lights. All bulbs have been checked and all four are working. I am also not getting any reverse lights but that is not as important at the moment.
Are there any other relays or switches to replace? Since the sockets are so old I would like to go ahead and replace them, where can I find new ones?
Any suggestions on what to check next? Thanks.
Are there any other relays or switches to replace? Since the sockets are so old I would like to go ahead and replace them, where can I find new ones?
Any suggestions on what to check next? Thanks.
#2
Start by checking all the grounds. This sounds like a classic poor ground condition. Also, check the grounds at the steering column and dash. When I think that there is a bad ground, I clamp a wire to the neutral terminal of the battery, and then start touching bare metal parts where the light bulbs plug in. The wire that I use is about 35 feet long 12 gauge, so I can reach just about anywhere on the car without fighting the wire. Once I find where the problem is, then I start looking for how the factory grounded the circuit, and clean, repair, and reestablish the ground.
#3
Thanks Junkman. While messing around today I disconnected the upper right taillight and with it disconnected the right lower taillight flashes with the turn signal and also works as a brake light so somewhere upstream wires must be crossed. Logic says the the uppers are the turn signals and lowers are the brake lights, is this true?
#4
X2 ,with junkman.Any time an electrical problem is doing something real crazy,like working part time or going back and fourth,then you should look for ground problems.Get a 12 volt test lite,Test circuit at several locations ,up to the problem for fire.Then just put a jumper wire to a known ground.That will narrow the possible problems.Those light sockets are very suspect as well and are avalible at most parts stores new,for cheap.Good luck ,BO
#5
I don't know exactly the lighting arrangement, but based on a very old and foggy memory, I believe that both upper and lower worked together. I also don't subscribe to the theory that "somewhere upstream wires must be crossed." because wires don't get crossed by themselves. Someone must have done it, and I find that a remote, if non existent theory. What is more likely, is that the sockets or bulbs are the problems. One thing that is very common today, is the bulbs have different "values" as a result of poor manufacturing procedures. I always try to buy NOS bulbs at swap meets that were manufactured in the good ole US of A. If that isn't a possibility, then I use all the same bulbs from the same package to keep everything in balance. Some say that it doesn't matter, however, with better than 50 years of chasing electrical problems, I say it does.... and you are not going to change my mind. If the bulbs are of a different value, then it will cause you problems when chasing problems within the circuits. I have seen where a poor ground will find its way back to the radio circuit, and when you step on the break, the radio will crackle and come to life. Unless someone has deliberately cut and spliced wire, or the wire harness has deteriorated to the point where the insulation is falling off, I assume that the harness is good as manufactured.
#6
Thanks for your input, I had planned on buying 4 sylvania 1157's tomorrow, tried calling for the sockets, they only sold universal so I am taking a socket and seeing if they matched up.
I wasn't saying that the wires crossed themselves, of course that don't happen. The harness does look pretty decent for being so old,
Thanks for your input!
I wasn't saying that the wires crossed themselves, of course that don't happen. The harness does look pretty decent for being so old,
Thanks for your input!
#7
Hey,Try to go throug the testing process first.This can save you alot of cost.Have a helper hold the brake petall,check the circuit from frt. to rear.Start at the rear,if you have good juice there ,its probably on the ground side.Later,BO
#9
Part way home, left side is working both brake and turn signal. Both right lights come on but no brake or turn. I know the lower bulb socket is bad as it is loose. Is there a way of changing out the sockets??? Also I found a loose wire under the dash, after getting a pdf today, looks like a ground wire is off. Still no blinking for right side on the tail lights, front light or the dash light. Tomorrow I am going to ground the wire and check where the rieing plugs into the steering wheel.
#10
The brake lights are activated through the brake light switch, which is located alongside the steering column and follow the brake pedal arm upwards and you will see it...it is adjustable and you pull back on the brake arm while pushing the switch in its socket...then push the pedal forward and the brake lights should come on...all the tail lights should light up as brake lights when activated...
#12
Part way home, left side is working both brake and turn signal. Both right lights come on but no brake or turn. I know the lower bulb socket is bad as it is loose. Is there a way of changing out the sockets??? Also I found a loose wire under the dash, after getting a pdf today, looks like a ground wire is off. Still no blinking for right side on the tail lights, front light or the dash light. Tomorrow I am going to ground the wire and check where the rieing plugs into the steering wheel.
#13
UPDATE:
Went to Rileys this evening and bought a dorman light socket. Popped that baby in and now I have turn signals on both left and right rear, left front and brake lights too. Whoopee! Going back tomorrow and buy another one and change the one of the left side because it seems a bit slow.
Went to Rileys this evening and bought a dorman light socket. Popped that baby in and now I have turn signals on both left and right rear, left front and brake lights too. Whoopee! Going back tomorrow and buy another one and change the one of the left side because it seems a bit slow.
#15
thanks everyone for your help, lights are working except front turn signal, that will be a project for the winter, bad news is now it won't start, almost beginning to wonder if I am not supposed to drive this car before winter hits.
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