output doesen't function correctly when the key is first turned on
I have a vacuum pump triggered by a vacuum switch for my power brakes. The pump is set to run for 25 seconds when the vacuum switch goes to ground. When I first turn the truck on with the key, it only pulses the vacuum pump for a few seconds until I turn the key off and on several times. Then it will finally run the pump for 25 seconds and function as programmed after that. Any thoughts?
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It sounds like your vacuum pump isn't consistently receiving the proper signal when you first turn on the truck. This issue could be due to a few factors, such as a faulty vacuum switch, a loose connection, or an issue with the power supply to the pump. It might be worth checking the wiring and connections to ensure everything is secure and functioning correctly. Additionally, inspecting the vacuum switch for any signs of wear or malfunction could help identify the problem. If the issue persists, consulting a mechanic or a specialist could provide a more detailed diagnosis. Click on the link for more Dyson V10 parts in UK troubleshooting tips.