Been doing research here but so far I’m drawing a blank.
Situation: 1970 std conv. Turn signals work both with and without brakes applied. All marker lights working. Turn signals also work fine with headlights on or off.
Hazard lights flash only the inboard two bulbs of the turn signals. They don’t sequence as expected.
I’ve replaced the turn signal flasher (previously) with the WCCC unit and the sequencer board is of the modern design but of unknown age.
Should I try a new hazard flasher or is it more likely the sequencer is the culprit?
If sequencer and/or TS flasher would be faulty, I think there would be no sequencing when using turn signals as well. I would tend to believe the problem is within TS switch and/or one of its connections.
Mine don’t sequence, but they do light up all six of the taillights - not just the inboards. My hazards flash fairly rapidly as well ~ may a half second cycle time or so, compared to the normal sequential flash speed of around 1 to 2 seconds (I’m guestimating the times, so don’t take them as gosphel or anything, LOL!).
So it could be related to age of the emergency flasher relay, or possibly the actual part number / rating of the relay? Not sure if they used the same one throughout '70 production, but I do know they changed the turn signal switch mid-production. Not sure of the circuit details of that change, but my hazard button is the early style little round button (the later style is the “rectangular” shape, with easily readable “hazard” script).
You can make them sequence by turning the turn signal and the hazards on at the same time but I don’t believe they were designed to sequence when just the hazards are activated.
Exchanged a few emails with Vic Yarberry. He suggests that I need the slower digital flasher on both hazard and turn signal (I have it only on the turn signal side now). My hazard flasher is too rapid for the outboard two bulbs to light in sequence when the hazards are on. I’ll try that.
He did. In fact now that I look at mine, I can see them trying to sequence but the mechanical hazard flasher is going too fast. Assuming his suggestion is correct, I’ll post a follow up.
This came up at our recent club display at Autorama in Dallas. We had a '67, '68, two '69s, and two '70s. We were filmed for an upcoming episode of The Car Guy show and he wanted video of the turn signals working. We tried the hazards too, first on the '67 (they sequenced together) and then on the '70 Eliminator which also sequenced. For grins I tried mine (having never done so in the time I’ve owned the car) and they didn’t appear to which got me wondering. Several of the Lone Star Cougar Club guys agreed they should sequence and those guys have forgotten more about Cougars than I’ll ever know.