Medium and Heavy Trucks

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We have 99 Freightliner Century Class. The A/C blower in
We have 99 Freightliner Century Class. The A/C blower in sleeper came in shop inoperative. We checked the switch and the plug on the back of switch was burnt. We have replaced the switch and terminals… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
254 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
Comercial transport technician
Vocational, Technical or Trade Scho
829 satisfied customers
2002 F/L 120 Classic .... elec panel in middle/lower dash,
2002 F/L 120 Classic .... elec panel in middle/lower dash, looking for location/lay out of all relays on LH side ...all the little identify tags are worn off. I know which is bunk a/c, signal for vigi… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
1998 freightliner fld with a 3406 cat.clutch fan will not
1998 freightliner fld with a 3406 cat.clutch fan will not kick in with ac running or with height temp.need advise or wiring schematic and dies it have a relay for the clutch fan … read more
FIX-IT
FIX-IT
Comercial transport technician
Vocational, Technical or Trade Scho
829 satisfied customers
How can I find the aveage mileage of a 1995 freightliner
how can I find the aveage mileage of a 1995 freightliner classic tractor? … read more
FIX-IT
FIX-IT
Comercial transport technician
Vocational, Technical or Trade Scho
829 satisfied customers
2001 Freightliner Century VIN #1LJ49197, Just told you.
Yes doing work myself. Problem with bunk HVAC. First is Bunk fan will not shut off with master switch on dash. With the switch all the way down bunk fan blows low. Switch middle I can control fan with bunk control, switch up blows on hi, no bunk control. … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
7,382 satisfied customers
I have This FREIGHTLINER FLD VIN Lk89818 WITH N14 at
Hello I have This FREIGHTLINER FLD VIN Lk89818 WITH N14 at my shop The problem is the high coolant temp buzzer stay on in dash Cruise don't work Jake don't work Hooked up scan cummins insite Found tha… read more
Roy
Roy
shop foreman
Associate Degree
4,528 satisfied customers
06 Sterling tractor with Cat c-13. Truck runs and starts
06 Sterling tractor with Cat c-13. Truck runs and starts fine. Gauges not working (tacometer, Speedo, No digital display) . They do not cycle at start up. Swapped Ignition key, no change. Swapped Inst… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
I have a 1996 Freightliner FLD120 that I'm trying to connect
I have a 1996 Freightliner FLD120 that I'm trying to connect the wiring on a used 14.0 L motor that was just put in. I can't seem to get the wires configured properly to allow all the cluster gauges t… read more
FIX-IT
FIX-IT
Comercial transport technician
Vocational, Technical or Trade Scho
829 satisfied customers
On a 1998 Peterbilt 379, I am having stop light issues. Stop
On a 1998 Peterbilt 379, I am having stop light issues. Stop lights work on tractor, but not on trailer. The problem is between firewall and pressure switch which is located on the floor between firew… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
2,892 satisfied customers
I cant find the name of a certain part on my detroit to
I cant find the name of a certain part on my detroit to replace it. Freightliner is even telling me they don't know. It's a 12.7 series 60 in a 93 freightliner. The crank shaft belts are tightened by … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
Dear Expert: I'm interested in a 1994 Freightliner semi
Dear Expert: I'm interested in a 1994 Freightliner semi tractor (FLD120). If I but it, it will havbe to be driven to Nebraska from western Illinois. I therefore have several concerns regarding (primar… read more
Roy
Roy
shop foreman
Associate Degree
4,528 satisfied customers
I have a 1998 Freightliner century. The fan will not cycle
Hi I have a 1998 Freightliner century. The fan will not cycle when the ac is on. It will come on if you pull the fuse for the fan. Can you help.… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
I have a 1994 freightliner fld120 with an n14 cummins. It has
I have a 1994 freightliner fld120 with an n14 cummins. It has 2 engine brake switches 1 for 2 cylinders and 1 for 4 cylinders. Each switch has 4 wires on the back and I'm needing to know what each of … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
254 satisfied customers
I have a 1995 freightliner fld 120 vin #856393 and I replaced
I have a 1995 freightliner fld 120 vin #856393 and I replaced a leaking stop light switch under the steering colum I disconnected the wires to remove the leaking stoplight switches and got the wires m… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
Freightliner M2 Business Class: I have a keyless remote for
I have a keyless remote for my Freightliner M2 Business Class. It was an aftermarket installation and has never been an issue. The other day, I noticed it still makes the noise when I click like it's … read more
FIX-IT
FIX-IT
Comercial transport technician
Vocational, Technical or Trade Scho
829 satisfied customers
I have a 2005 Mercedes Columbia Freightliner.Trailer brake
I have a 2005 Mercedes Columbia Freightliner. Trailer brake lights stay on 100% of the time even though the tractor brake lights are not on and the tractor is completely shut down When hooked to a tra… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
7,382 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
Comercial transport technician
Vocational, Technical or Trade Scho
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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