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Old 01-09-2010, 07:20 PM
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electrical problems 68 chevelle

I was putting a new classic stereo in my 1968 chevelle which included a power amp in the trunk. In the process i found that the car had been rewired somewhat i removed a harness that ran from the trunk area to the engine compartment. It didn't seem to be connected anywhere but was taped in place with the other wires. Now my blinkers only work up front unless i turn on my headlights then they work in the back but flash on both sides. Also when my stereo is playing with my directionals on you can here the blinkers through the speakers. All my fuses look good and i tried different arrangements for power to my player. Nothing seems to work. Im thinking it might be a ground problem but im not sure where to start.

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Old 01-10-2010, 09:15 AM
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How a bout reinstalling what you removed so you can get back to square one? Then you can try and obtaining a wiring diagram for your car and try to figure out what someone did.

Vince
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Old 01-10-2010, 11:00 AM
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Bad/shorted sheiding on the Low level RCA cables to Amp will cause that noise. Bad grounds else where will also.
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Old 01-10-2010, 11:37 AM
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yup, ya "maybe" got a mess to sort thru,,,maybe not....

first look to see if you do have brake lamps "and" both the rear blinkers working at the same time....

that tells you the blinker curcuit is operating the wrong rear (running lamp) filament,,,,should only operate the brighter brakes filament curcuit...

since the fronts do work (they are on their own curcuit and kinda proves the blinkers curcuit is ok),,,if ya got brakes and blinking,,,just swapping the wires at the rear lamps may solve it....

hope this makes sense:
brakes lamps filaments are usually on a batt direct curcuit...
blinkers operate thru a seperate ign on curcuit...
running lamps filaments are a batt direct switched curcuit...
if the wires are crossed at the lamps and the headlamps switch is on,,, then the brakes and blinker and running lamps power is feed from each and all curcuits at the same time to both filaments in each bulb....
(and very likely feeding back to the amp)

swap the wires at the rear lamps and post results...

Last edited by red65mustang; 01-10-2010 at 11:42 AM.
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Old 01-10-2010, 12:00 PM
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Quote:
Originally Posted by 302 Z28
How a bout reinstalling what you removed so you can get back to square one? Then you can try and obtaining a wiring diagram for your car and try to figure out what someone did.

Vince
I agree with Vince, Put it back like you found it and start over don't ever assume anything when it comes to wiring. Check everything before you go ripping out wires you need to know whats there you need and don't JMO. Take your time and check all connections for juice and what works what don't jump in and go crazy with it find the wire you need and trace it and get it working and go from there.

Cole
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