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My stereo has been turning off randomly - I thought when I hit bumps or hit bumps while on the gas... but I started to notice it was often when I shift.
When I shift, I rev the engine for the next gear - old habit - don't judge if you agree/disagree on how I drive my stick.
That said, I still wasn't sure what was causing it, and was convinced it was the wiring - so, I've tested the wiring, I've by hand hit all of the wires while the stereo is on as if I was hitting bumps in the road and then some. NOTHING - stereo works fine.
So, last thing, I jump in the cab while parked, and start revving the engine, poof.... stereo shuts off and then turns back on.
So - what do I do? Is the alternator bad? Or? what to look at/into?
Do the lights brighten or dim when reving, might test at night. What I'm wondering is if the radio is stock or aftermarket and could it be shutting down when presented with higher voltage as a built in safety thing. Like if the charging system is hitting well above 14 or 15 volts.
Do the lights brighten or dim when reving, might test at night. What I'm wondering is if the radio is stock or aftermarket and could it be shutting down when presented with higher voltage as a built in safety thing. Like if the charging system is hitting well above 14 or 15 volts.
Aftermarket stereo.
I haven't noticed the lights dimming, but I'll go test this in two hours and report back
Do the lights brighten or dim when reving, might test at night. What I'm wondering is if the radio is stock or aftermarket and could it be shutting down when presented with higher voltage as a built in safety thing. Like if the charging system is hitting well above 14 or 15 volts.
So, at idle the lights kinda flicker (not "flicker" but ever so slight pulsing) a tiny bit, get very slightly brighter when reving, but not as much as my old 72 vw bug used to (that thing would like double the lights!)
Tested battery voltage, around 14 at idle, jumped up to just above 15 volts when reving
Would that jump to 15 volts do it? What do I add into the system to take care of that?
Originally Posted by elbow grease
Like tbear said ^^^^^^
Have someone rev the engine while you test voltage at the battery.
finally got to it tonight with my wife (life with kids is insane)
Originally Posted by beartracks
Sounds like a loose wire.
I thought this originally as well, but all of the wires are super solid, triple checked, even pulled off the key'd wire and put it on a dedicated switch and still the same problem.
So, at idle the lights kinda flicker (not "flicker" but ever so slight pulsing) a tiny bit, get very slightly brighter when reving, but not as much as my old 72 vw bug used to (that thing would like double the lights!)
Tested battery voltage, around 14 at idle, jumped up to just above 15 volts when reving
Would that jump to 15 volts do it? What do I add into the system to take care of that?
TOO HIGH! Replace that old voltage regulator, it's mechanical if original. Get one for a mid '80s truck, it's gonna be electronic and will do the job. Over 15 volts is why your radio is shutting down.
Here is one for example, for 1965 up through 1989 at least. More Information for STANDARD MOTOR PRODUCTS VR166
TOO HIGH! Replace that old voltage regulator, it's mechanical if original. Get one for a mid '80s truck, it's gonna be electronic and will do the job. Over 15 volts is why your radio is shutting down.
Here is one for example, for 1965 up through 1989 at least. More Information for STANDARD MOTOR PRODUCTS VR166
Ok... replaced the regulator and initial tests seem to show it's fixed
The capacitor thing... does it matter? does it "need" to be replaced? everything seems to be working - don't fix what's not broken? replace before it becomes a problem?
The capacitor thing... does it matter? does it "need" to be replaced? everything seems to be working - don't fix what's not broken? replace before it becomes a problem?
Wouldn't worry about the cap unless you get ignition or alternator noise through the radio / amplifiers.
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