Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
I have 2003 mack Mr. Vmac3 system. 6 EUPs. 2 questions.
I have 2003 mack Mr. Vmac3 system. 6 EUPs. 2 questions. Laptop code came up no.3 euro. Swapped eup from another truck same year and engine. Ran better but stumbles at Times taking off. Do the eups hav… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
352 satisfied customers
Looking for a wiring diagram for a 2006 Mack Granite Series
Looking for a wiring diagram for a 2006 Mack Granite Series CV713. Fuel gauge on dash will not work. Customer has already replaced fuel sending unit and gauge in dash cluster. Thanks… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
352 satisfied customers
2008 Cat C7 S/N: C7S06375. Dedicated PTO configuration set
2008 Cat C7 S/N: C7S06375. Dedicated PTO configuration set to remote switches. When close the PTO switch ECM 56 PTO On/Off to ECM 3 Sensor common ground. Wont turn on dedicated PTO. PTO parameter stay… read more
catmastertech
catmastertech
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Vocational, Technical or Trade Scho
1,301 satisfied customers
2007 CAT C7 engine. Need instructions to install a manual
2007 CAT C7 engine. Need instructions to install a manual regeneration switch for the DPF.… read more
Daniel Wilson
Daniel Wilson
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4,431 satisfied customers
It is showing several fault codes on being link 1939. 2000
it is showing several fault codes on being link 1939 … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
352 satisfied customers
Just installed a new block 6nz and having trouble finding
just installed a new long block 6nz and having trouble finding the location to a plug. im thinking its coolant temp because the ecm is reading 194 degreees coolant temp at all times. … read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,301 satisfied customers
I have a 2006 C5500 6.6L with a no crank no start condition.
I have a 2006 C5500 6.6L with a no crank no start condition. I can crank it remotely at the starter but will not start, Getting power to starter relay & fuel pump relay but relays are not being activa… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
352 satisfied customers
Have a 2008 f650 c7 cat engine 300hp s/n C7809757 installing
have a 2008 f650 c7 cat engine 300hp s/n C7809757 installing a 2 wire remote engine throttle control and PTO on off wire. I was told the remote throttle control pins into the ECM at J1/P1 pin 56 sig. … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,186 satisfied customers
I have a catepillar bxs c15 intake actuator valve cylinder 2
I have a catepillar bxs c15 intake actuator valve cylinder 2 failed test could that cause a weak jake brake… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,186 satisfied customers
I am wanting to do eliminate the idle shut down i belive you
Hello sir i am wanting to do eliminate the idle shut down i belive you had told me to wire a switch from the ECM PIN 56 rear of the ECM can you send me a picutre of what ECM it is and also what kind o… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,186 satisfied customers
My name is ***** ***** -have problem with 2006 ford F650
Customer: Hi my name is ***** ***** -have problem with 2006 ford F650 with 5.9 cummins & 2400 allison automatic transmission=== have no communication with transmission i do have the engine & brake sys… read more
John Vieira
John Vieira
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63 satisfied customers
I have a Cat C-9 ESN: 9DG07347 This unit has very gh counts
Hello I have a Cat C-9 ESN: 9DG07347 This unit has very high counts for fault 30-8 PTO throttle signal invalid. It is a fire truck with a remote throttle FRC Pump Boss. when it is on the remote thrott… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,186 satisfied customers
I have a 99 Freightliner FL 70 with a 3126 Cat. The engine
I have a 99 Freightliner FL 70 with a 3126 Cat. The engine cooling fan stays on all the time. Took it off and tested the air clutch as borking fine. Any ideas what to look at next? Thanks… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,186 satisfied customers
Mr. Cat Man I have a cat C13 KCB27925. Im gettting a code
Mr. Cat Man I have a cat C13 KCB27925. Im gettting a code 231-12. Can you give me any insight on troubleshooting this code?… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,186 satisfied customers
Hello I have a 2005 Cat C-9 and I keep getting a code 30-8
Hello I have a 2005 Cat C-9 and I keep getting a code 30-8 dose anyone have the dia tree for this code?… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,186 satisfied customers
Hello I have a 2003 Cat C-7 I have to install a hight idle
Hello I have a 2003 Cat C-7 I have to install a hight idle switch at the rear of the unit. I have Programed PIN 46 to be PTO engine speed point A set to 1200 rpm. I also need to set the PTO on switch … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,186 satisfied customers
i have a 06 international 9900 with a C15 CAT ESN:MXS67145
i have a 06 international 9900 with a C15 CAT ESN:MXS67145 check engen light on. pluged in with cat ET and had three codes. 0108-36 barometric pressure voltage high 0231-12 j1939 device not responding… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,186 satisfied customers
1994 peterbilt dd 2 cruse controle works for high iddle as
1994 peterbilt dd 2 cruse controle works for high iddle as long as parking brake is off if set the cruse high iddle will not work al so cruse will not work at road speed the high idle will work on til… read more
Steve
Steve
Self Employed
High School or GED
30 satisfied customers
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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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