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Why do mack and volvo trucks have a warning label on valve…

Customer Question
Why do mack and...

Why do mack and volvo trucks have a warning label on valve cover that says may produce 100volts? How would a 14volt system even produce a100Volts

Mechanic's Assistant: Sometimes things that you think will be really complicated end up being easy to fix. The Heavy Truck Mechanic I'm going to connect you with knows all the tricks and shortcuts.

And its not my truck personally, just something I want to understand

Mechanic's Assistant: Are you fixing your truck yourself? What have you tried so far?

No and nothing just curious about the voltage concerning injectors

Mechanic's Assistant: Anything else you want the truck mechanic to know before I connect you?

Not right now, thank you

Submitted: 9 months ago.Category: Medium and Heavy Trucks
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Answered in 4 hours by:
11/12/2017
Technician: Cat Man, Cat Engine Expert replied 9 months ago
Cat Man
Cat Man, Cat Engine Expert
Category: Medium and Heavy Trucks
Satisfied Customers: 9,460
Experience: I am ASE Master Truck Certified.
Verified
Thanks for asking your question. I will try and help you out.
Most all engines have this warning. The label is referring to the AC voltage going to the injectors. This voltage can be up to 100 volts AC.
The engine computer has an injector driver module that converts the low DC voltage to high AC. All on highway Diesel engines have injectors that run on high AC.Please reply back if you need more help or have more questions. I am happy to assist.
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Technician: Cat Man, Cat Engine Expert replied 9 months ago
Hey. I just wanted to see how things were going. Please let me know if you need more help. I am happy to assist. If my information was helpful, please leave a good or higher rating so that I receive credit. Thanks.
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