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Turn signal Puzzle

952 Views 7 Replies 4 Participants Last post by  patrykrebisz
Hi, I have a '78 450 SLC. The turn signals flash very quickly when engine is cold. Normally, quick flashing means a blown bulb, in this case, all bulbs are good, after the car warms up, the indicators slow to normal speed. Any ideas ?
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i am curious if it has something to do with vacuum system ?
Hey Donf, thank you for the advice. I have been searching for weeks to try and find solution. Nobody has offered any ideas. thanks again.
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