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2000 FL106 with no cruise. came on for about 3 weeks and…

Customer Question
2000 FL106 with no...

2000 FL106 with no cruise. came on for about 3 weeks and went off again. idle up comes on, but wont idle up. park brake valve turns it off. clutch switch bypassed and electric brake switch disconnected.

Mechanic's Assistant: What is the complete model and serial number of your machine?

2000 FL 106 hg20231 vin

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

Check computer pins for wires backed out as per Freightliner tech and air switches on back check out.

Submitted: 8 months ago.Category: Medium and Heavy Trucks
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Answered in 4 hours by:
11/17/2017
Technician: go-west.., Technician replied 8 months ago
go-west..
go-west.., Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 1,266
Experience: Technican with 20 years experience focused on engines and electrical.
Verified
Good evening
What engine do you have in your truck?
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Customer reply replied 8 months ago
series 50 detroit 315hp 10 speed
Technician: go-west.., Technician replied 8 months ago
Perfect
Here are the possibilities
Clutch switch
Service brake switch
Park brake switch
Speedo sensor wiring
Service and park brake switches are behind park brake button and or dash panel
Sometimes the come unplugged, have a look and let me know what you find.
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Customer reply replied 8 months ago
ok... clutch switch bypassed, service brake electrical switch on pedal open and unhooked, service brake air switch works correctly and shuts off PTO idle when pushed in, speedo sensor IS four wire, however only one on trans and speedo works fine, dash panel out twice and both switches hooked up and as I said , disengage PTO idle.
Customer reply replied 8 months ago
It is odd that PTO idle works, however it won't idle up higher
Technician: go-west.., Technician replied 8 months ago

https://www.dropbox.com/s/zyhdkozgtxyf3yv/Series%2050%20vih%201.pdf?dl=0

https://www.dropbox.com/s/3o7eyti4b44do26/series%2050%20vih%202.pdf?dl=0

Have a look at the pic for the vss

please verified the ecm has good continuity with the vss

the vss should be above(###) ###-####ohms

Let me know how you do..

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Customer reply replied 8 months ago
How about electrical diagram?
Technician: go-west.., Technician replied 8 months ago
There are on the last slide
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Customer reply replied 8 months ago
I don't understand.
Customer reply replied 8 months ago
Pulled entire dash apart. Checked every two wire air switch. Found one in block against inside firewall, behind ignition switch panel with 4.59v on one side. Could not actuate switch with any air device. reluctantly bypassed switch with shunt. Cruise works. Believe it may be foot valve switch. ordering now. PTO still does not idle up.
Technician: go-west.., Technician replied 7 months ago

ok

let me know how you do

also did you get the diagrams ?

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Technician: go-west.., Technician replied 7 months ago
Good evening I see the question is still open Do you have any other questions?
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Technician: go-west.., Technician replied 7 months ago
Can I help you with anything else?
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