Medium and Heavy Trucks

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There we have a 06 international 7400 tree removal truck.
hey there we have a 06 international 7400 tree removal truck. the issue we are having is there is no throttle response at all!! scanned with CAT ET and the only code we have is 385-3 INTAKE VALVE ACTU… read more
NicholasM1019
NicholasM1019
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Vocational, Technical or Trade School
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1995 peterbilt 379 engine cat 3406e, the engine fan dont
1995 peterbilt 379 engine cat 3406e, the engine fan dont work when engine is asking for, the fan works from the cab override switch, so the solenoid and harness from the switch work, need some diagram… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,253 satisfied customers
Kw t370 fan stays on all the tome. 2014 Cummins esn
and no active faults , key on engine off the fan free spins key all the way off locks down soon as you fire truck up fan locks in and stays engaged, with a/c on or with a/c off , Cummins In site says it's in air conditioning state even with the a/c off… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
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I have a 2006 freightliner think fl70 with c7 cat. Had a/c
Hello, I have a 2006 freightliner think fl70 with c7 cat. Had a/c compressor and drier replaced, but engine fan doesn't cycle with a/c on. … read more
Bradey V
Bradey V
Certificate
I'm working on a 2014 Kenworth T800 with an ISX Cummins
I'm working on a 2014 Kenworth T800 with an ISX Cummins model DCEXH0912XAU and ESN(###) ###-#### The customer concern was a major air leak at the front of the engine and the engine fan remains on when… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
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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
1,307 satisfied customers
Catman I have Eng sn 6NZ63295. the engine fan is on. I look
catman I have Eng sn 6NZ63295. the engine fan is on. I look in status under cat et. The cooling fan shows on, on/off fan output j1 is off and ac high pressure is off. What can I do to get the fan to s… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,253 satisfied customers
Working on a 3406e 5ek in 1996 379 pete, eng fan running all
working on a 3406e 5ek in 1996 379 pete, eng fan running all the time, check wiring and fuses and relays all seem to b ok, on the plug that goes on the manual o/r switch in cab all the wires are hot i… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,253 satisfied customers
The fan doesnt come on with jakes or when engine temp is hot
the fan doesnt come on with jakes or when engine temp is hot in our 1998 peterbilt 378 with a 3406e … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,253 satisfied customers
Cat Man, I have a SDP12176 That the engine fan is on all the
Cat Man, I have a SDP12176 That the engine fan is on all the time. I checked the config settings and found that the parameters are all screwed up. It has a manual fan switch but is programmed that it … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,253 satisfied customers
Cat man. I have a c15 that will not engage clutch fan when
Hello cat man. I have a c15 that will not engage clutch fan when coolant temp reaches high temp. Fan will come on manually with switch and comes on with a/c. Temps climb to atleast 220. New temp switc… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,253 satisfied customers
Mr. Cat Man, I'm having some trouble with the fan staying
Mr. Cat Man, I'm having some trouble with the fan staying on, on a C12. My ESN is MBL01285. I've checked the fan clutch and it seems to be working properly. Can you tell me anything about this circuit… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,253 satisfied customers
Cat Man, I have a KCB25071 that the engine fan stays on all
Cat Man, I have a KCB25071 that the engine fan stays on all the time. What all inputs will cause the fan to come on? The a/c pressure is off, the manual on/off works, fan output is off. circuit works … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,253 satisfied customers
Cat Man I have a 1LW that isnt turning on the cooling fan when
Cat Man I have a 1LW that isnt turning on the cooling fan when the a/c sends the signal to. I can make the solenoid come on with the diag test can I change something in my config to fix this?… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,253 satisfied customers
put bxs engine converted t9o 6nz in 97 pete everything seems
put bxs engine converted t9o 6nz in 97 pete everything seems to be fine except the fan let me explain with the engine harness disconnected I have power on both sides of the ac system also both sides o… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,253 satisfied customers
I have a 2003 international 9200I with a C12 and the fan doesn't
I have a 2003 international 9200I with a C12 and the fan doesn't turn off. It has a fan override switch also. I used international on command to trouble shoot the issue. Going through the steps I got … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,253 satisfied customers
On a 98can pete with a 1lw 3406e the fan wont go off unless
On a 98can pete with a 1lw 3406e the fan wont go off unless i pull relay. I can run coing fan output driver test with et and relay switches and fan goes off. If i take relay out and run a/c the fan cy… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,253 satisfied customers
I have a 2004 peterbilt with a c-15 engine. When the outside
I have a 2004 peterbilt with a c-15 engine. When the outside temperature goes below a certain temperature like -15 celsius the engine fan engages and won't go off. What would cause this to happen?… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,253 satisfied customers
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