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#1 |
Registered User
Join Date: May 2016
Location: Leavenworth, Kansas
Posts: 18
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Need help with 66 fleet side C20 taillights
So my taillights recently stopped working and I have no idea why. My fuses and bulbs are good, and I'm still able to use my headlights are turn signals with no problem. I assume it's a possible ground issue, but I'm not sure. Any possible explanations?
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#2 |
Registered User
Join Date: May 2013
Location: chino hills ca
Posts: 91
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Re: Need help with 66 fleet side C20 taillights
Check your brake light switch
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#3 |
Registered User
Join Date: Jun 2013
Location: joshua tree ca.
Posts: 1,484
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Re: Need help with 66 fleet side C20 taillights
First check ground
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#4 |
Registered User
Join Date: May 2016
Location: Leavenworth, Kansas
Posts: 18
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#5 |
Registered User
Join Date: Jun 2007
Location: Everest Ks
Posts: 749
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Re: Need help with 66 fleet side C20 taillights
Switch in under the dash by the brake pedal. Also I would ground the taillight housings to the frame. Joseph
__________________
1970 Chevelle Nomad station wagon 1966 C-10 lwb,250-six,granny 4speed ![]() ![]() 1966 C-10 lwb,factory A/C,Custom Cab ![]() 1954 Delray 2-door sedan [rat rod project]
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#6 |
Registered User
Join Date: May 2016
Location: Leavenworth, Kansas
Posts: 18
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#7 |
Registered User
![]() Join Date: Aug 2010
Location: Burbank CA
Posts: 3,055
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Re: Need help with 66 fleet side C20 taillights
Turn signals both front and rear are working? Brake lights? If NOTHING back there works, take a look at the connection point where the rear harness plugs into the main harness. It's about 3 feet short of the rear bumper on the driver side frame rail.
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#8 |
Registered User
Join Date: May 2016
Location: Leavenworth, Kansas
Posts: 18
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Re: Need help with 66 fleet side C20 taillights
Ok so I put in new bulbs and ran direct ground wires from the taillight harness to the frame. Here is what's happening:
Right side does not work at all Left taillight is faint when applying brakes and turn signal Left taillight is bright when lights are ON and applying turn signal Everything in the front works fine, as well as everything in the cab. It's only the taillights giving me trouble. Should both wires be grounded on the left side? Or is there possibly a short somewhere? Posted via Mobile Device |
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#9 |
Registered User
Join Date: Feb 2015
Location: Ridgecrest, CA
Posts: 94
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Re: Need help with 66 fleet side C20 taillights
I would double check the housings and clean the connections on the bulbs and in the sockets. Happened to me once in my '64 on the front markers. Everything was working fine, then one day, nothing. Water had got in to the housing and corroded the connectors and the metal grit made its way to the side of the socket grounding out the circuit.
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#10 |
Registered User
Join Date: May 2016
Location: Leavenworth, Kansas
Posts: 18
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Re: Need help with 66 fleet side C20 taillights
I'd like to thank everyone for the help. I replaced bulbs and fuses, and ran a direct ground wire connection from the battery to each taillight housing, now everything's working fine.
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