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I am workn on a 2007 peterbilt 379 with a C-15 NXS. The
Hi my name is Ben.. I am workn on a 2007 peterbilt 379 with a C-15 NXS. The jakes do not work on the high setting. We have tried new engine harness, new spacer plate harness, new cab to engine harness… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,561 satisfied customers
Jake brakes wont work. 2003 pete 379 c15. Cat told me to
yes, cat told me to unplug the two wire connector to the micro switch and use a jumper wire to see if the jakes started working if they did then we would know the micro switch was bad well we did that an still no jakes … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,803 satisfied customers
I was needing the wiring diagram for a 3406e 2ws model as i
I was needing the wiring diagram for a 3406e 2ws model as i am meeding to wore the cruise control, jake brakes and a,c straight to ecm. Wiring harness came out of truck Yc056687 and engine is 2WS23960… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,561 satisfied customers
On our 2003 k104 with a cat c15 6nz, we have low engine
On our 2003 k104 with a cat c15 6nz, we have low engine brake, no medium and low on high. We have swapped engine brake controllers with another truck and this has not fixed it. A computer has been plugged in and it said the ecu was not receiving a command. So we're thinking it's between the ecu and engine brake controller. What were after is a detailed wiring schematic of this motor th fault find … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,803 satisfied customers
I installed a Cat 3176 with jake brakes in a fld112 that was
i installed a Cat 3176 with jake brakes in a fld112 that was not wired for Jakes i have purchased the cab harness and switches and installed them need to know pin position number or letter at fire wal… read more
FIX-IT
FIX-IT
Comercial transport technician
Vocational, Technical or Trade Scho
829 satisfied customers
I have two questions, first one is my Jake brake won't shut
I have two questions, first one is my Jake brake won't shut off it is on the steering wheel, on a w900 kenworth with a c-15 cat, also when I am in the lower set of gears my rpms seem to have a rev lim… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,561 satisfied customers
My cat 6nz moter is throwing codes 121-06 and 122-06 the
my cat 6nz moter is throwing codes 121-06 and 122-06 the jakes work but sound like they are only working at the low setting they will work on setting 1 2 3 just real weak sounding I ran the over head … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,561 satisfied customers
2006 western star 4900fa cruise control and engine brake quit
2006 western star 4900fa cruise control and engine brake quit after truck warms up. both work fine prior to warm up. looking for schematics and or theory of operation. vehicle has new clutch switch, s… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,803 satisfied customers
I have a 60 series detroit with a misfire problem on
I have a 60 series detroit with a misfire problem on deceleration. Runs great on acceleration, but when we down shift it misfires and emits white smoke.… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,803 satisfied customers
I'm not sure if all of the these symptoms are related, but I
I'm not sure if all of the these symptoms are related, but I have a 2000 Mack RD688s that has the Electronic Malfunction Light & Parking Brake Light remain on with the ignition off and key out. I retr… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,803 satisfied customers
Having. A problem with jakes works on 1&2 position but I
Having. A problem with jakes works on 1&2 position but I feel no difference on the 3rd position and check engine light comes on and goes off very quickly Jakes cut in and out only on this 3rd position… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,561 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
9,561 satisfied customers
I have a cat 13 motor with Jake brake problems. Jake brake
I have a cat 13 motor with Jake brake problems. Jake brake does not work in level 1. It does however work in mode 2 and 3. I get the fault 121-06 low/hi retarder. I replaced solenoids, checked power, … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,561 satisfied customers
I have a 3406e the jakes arent working. I get flash code 14
I have a 3406e the jakes aren't working. I get flash code 14 and on a scanner I get med/high retarder current high and low/high retarder current low. Any idea?… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,561 satisfied customers
1999 Kenworth C-12 Cat VIN1XKTDU9XXUJ960686 HAS INTERMITTENT
1999 Kenworth C-12 Cat VIN1XKTDU9XXUJ960686 HAS INTERMITTENT CODES 121-6 122-6 WHEN HOT ENGINE WILL STUTTER, SLAM IN AND OUT LIKE SHUT OFF AND ON BLOW WHITE SMOKE ONLY WHEN HOT ONLY IN POWER DEMAND HE… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,561 satisfied customers
I have a Caterpillar C12 in a 02 Peterbilt. When engine brakes
I have a Caterpillar C12 in a 02 Peterbilt. When engine brakes are on med or high mode the check engine light comes on. Code reads " med/high engine retarder voltage high. Which jake solenoid should I… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,561 satisfied customers
I have a 1996 W900L with an engine retarder brake problem.
I have a 1996 W900L with an engine retarder brake problem. This unit originally had a smart wheel, but the switches has worn out and the replacement wheel is no longer available. The unit has been con… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,561 satisfied customers
Hello I connected my scanner to my truck and it gave me the
Hello I connected my scanner to my truck and it gave me the error code 128_121_4 the scanner also showed on the screen (pid retarder status voltage below normal or shoted low)… read more
Jim
Jim
Diesel tech.
212 satisfied customers
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