Medium and Heavy Trucks

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I have 97 Freightliner fld 120 with 12.7 detroit.my
I have 97 Freightliner fld 120 with 12.7 detroit.my temp.gsige is not working.i changed the sensor and the gauge both,still not working … read more
AMANDEEP MAHERU
AMANDEEP MAHERU
1 satisfied customers
1998 Freightliner Fld 120. Series 60 Detroit 12.7 liter
1998 Freightliner Fld 120. Series 60 Detroit 12.7 liter engine. I'm losing coolant out of the radiator. There is bubbles in there when truck is running. Combustion leak test came back good and there i… read more
Chris (aka-Moose)
Chris (aka-Moose)
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Vocational, Technical or Trade School
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I have a 1997 freightliner fld with a 12.7 Detroit. it has a
I have a 1997 freightliner fld with a 12.7 Detroit. it has a real bad hesitation when driving. at idle you can feel it around 1500 rpm. I have replaced fuel lines and filter. I replaced the turbo boos… read more
Wayne
Wayne
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Vocational, Technical or Trade Scho
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Looking for the fuse panel diagram for a 2000 FLD 120
looking for the fuse panel diagram for a 2000 FLD 120 Freightliner … read more
Wayne
Wayne
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Vocational, Technical or Trade Scho
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I need a copy of the relay diagram on the panel behind
I need a copy of the relay diagram on the panel behind shifter for a 99 fld 120 vin A92012. The wipers stopped working while being used. I am going to test for power at the switch and the motor. I hav… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
10,038 satisfied customers
I had a guy install the dash parking/trailer brake control
I had a guy install the dash parking/trailer brake control valve in my 97 Freightliner fld 120 and I have air coming out my blue line without the the brakes being engaged im thinking that it was cross… read more
Mike
Mike
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Have freightliner fld 120 tri axle pulls to right when
Have freightliner fld 120 tri axle pulls to right when applying brakes intermittently … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
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93 Fld 120. 93 for 120 can. 93 fld 120 cab to engine wiring
93 Fld 120 JA: The Expert will know what to do. Please tell me everything you can so the Expert can help you best. Customer: 93 for 120 can JA: Is there anything else important you think the Expert sh… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
10,038 satisfied customers
Got all lights except brake lights on my 1996 Freightliner
Got all lights except brake lights on my 1996 Freightliner fld 120. Got a truck and pulling a dump trailer … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
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I have a 99 freightliner fld my front drive axle when
I have a 99 freightliner fld my front drive axle when slightly applying the brakes locks up I replaced brakes and abs in the center of front axle it does this loaded or empty what do you think is the … read more
Mike
Mike
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I have a 1998 freightliner FLD. the speedometer will
i have a 1998 freightliner FLD. the speedometer will occasionally quit working and then start working again while I am going down the road. It doesn't go to zero but down to 15-20 mph depending on how… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
10,038 satisfied customers
I have a 1992 freightliner fld 120. The blower motor does
I have a 1992 freightliner fld 120. The blower motor does not work with the selector on the dashboard but it works if I apply power to it. I am. Thinking it's the relay.. But do not know which one is … read more
FIX-IT
FIX-IT
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Vocational, Technical or Trade Scho
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2000 freightliner FLD 120 was working fine and then driver
2000 freightliner FLD 120 was working fine and then driver turned off tractor mechanic check oil mechanic put 1 gallon of oil in tractor driver went to turn tractor back on and nothing happened total … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
10,038 satisfied customers
hello i have a 1996 freightliner fld 120 with a series 60 12.7
hello i have a 1996 freightliner fld 120 with a series 60 12.7 ltr detroit , the truck wont start checked the batteries they are fine put a new starter in and changed the mag switch on the fire wall. … read more
Pete
Pete
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General auto certifications
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I have a 1996 freightliner fld and a 1999 freightliner fld,
I have a 1996 freightliner fld and a 1999 freightliner fld, the wheel hub on classic is bad, can i switch them(steer axel driver side) take everything from kingpin to rim from fld and put on classic.… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,735 satisfied customers
I need to know the dimensions for a 98 freightliner fld 120.
I need to know the dimensions for a 98 freightliner fld 120. is it 102" wide? vin is 1FUYDZYB2WP725450. I can get some details from Vinlink but no overall dimensions.… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
3,693 satisfied customers
I have a 1997 Freightliner FLD 120 with Cummins N14. Sometimes
I have a 1997 Freightliner FLD 120 with Cummins N14. Sometimes when I push the start knob all elecrtric shuts down and dies. I have to switch the battery switch off and on do get the electric back on.… read more
Curtis B.
Curtis B.
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Associate Degree
1,270 satisfied customers
I dont have power to the wiper switch on my 99 FLD 120.
I dont have power to the wiper switch on my 99 FLD 120. Does it come from a relay or breaker. What would the location of that be. Nothing labeled on the wiring diagram under my dash.… read more
FIX-IT
FIX-IT
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829 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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