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Headlights pulsate at idle. 700 89

posted by  someone claiming to be Martin Kestle on  Mon Jan 29 13:46 CST 2001 [RELATED]

I've noticed over the last few months that the headlghts (actually all the lights) on my '89 760 turbo wagon (180,000 km) pulsate slightly when the car is at, or slightly above idle. I do not remember this always being the case.

The idle speed is correct and steady and the alternator belt is correctly tensioned. I measured the voltage at the battery terminals and from the positive battery terminal to chassis ground and it appears to be a steady 14.5V according to my cheap analogue meter. The pulsations appear to be about two or three per second. At speed the effect is not noticeable.

Any helpful pointers as to the cause of this or what to check for?

Thanks, Martin Kestle





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New Headlights pulsate at idle. [700][89]
posted by  someone claiming to be Martin Kestle  on Mon Jan 29 13:46 CST 2001 >


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