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Ask go-west.. Your Own Question
go-west.., Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 1131
Experience:  Technican with 20 years experience focused on engines and electrical.
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Just put in new tach freightliner classic xl 04 now tach or

Customer Question

Just put in new tach freightliner classic xl 04 now tach or speedometer does not work
JA: What is the complete model and serial number of your machine?
Customer: 04 freightliner classic xl 1fujapavx4dm93472
JA: Are you fixing this yourself? What have you tried so far?
Customer: Checked fuses and wiring found nothing
JA: Anything else you want the equipment mechanic to know before I connect you?
Customer: Speedometer was working until I hooked up tach
Submitted: 9 days ago.
Category: Medium and Heavy Trucks
Customer: replied 8 days ago.
What do you think the problem might be
Expert:  go-west.. replied 7 days ago.
Good morning
Go to the tach and speedo and check for ignition power at the connectors wire 81 c is the circuit at key on let me know what you get. Please check both connectors
Let me know what you find

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