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1970 Stingray Corvette, 454 and 390 horsepower-- Headlight and windshield wiper help

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Old 07-23-2011, 09:07 PM
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Alonso4034
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Default 1970 Stingray Corvette, 454 and 390 horsepower-- Headlight and windshield wiper help

My headlights and wipers do not work. i have no clue what to replace, actuators? relays? wiper motor?
Old 07-23-2011, 10:33 PM
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69Vett
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you start with the basics, first get a vacuum diagram for your car.
Next test your current vacuum your car pulls, normal is around 18 "
around 10" things won't work very well, got power brakes ?
do your headlight and wiper over-ride switches work ?
Old 07-23-2011, 11:12 PM
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scottyp99
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Hit this link, it does a great kob of explaining how your vacuum headlights work.

http://forums.corvetteforum.com/c3-t...tem-works.html

Scott
Old 07-24-2011, 10:01 AM
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Alan 71
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Hi A,
I'll also suggest that you buy a vacuum pump with a gauge, like a Mity-Vac. It really helps in testing each component individually so you can narrow down the problem.
It's well worth the cost.
Regards,
Alan

If you can describe what works and what doesn't you'll can get some suggestions on the forum too.

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