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Related Medium and Heavy Trucks Questions
No power to the ECM. From the ECM where do 52,53 and 70
No power to the ECM. From the ECM where do 52,53 and 70 wires go to? … read more
Nich1019
Nich1019
Cummins/Caterpillar Technician
Vocational, Technical or Trade School
2,492 satisfied customers
2005 Caterpillar acert,379 peterbilt. Just bought it.was
2005 Caterpillar acert,379 peterbilt. Just bought it.was messing with ac compressor fuse it was hot and blowing fuses without breaker in … read more
Andrew G.
Andrew G.
Heavy Truck Mechanic
Heavy Duty Equipment - Truck and Transport Mechanic
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I have a sterling with a C 12 cat in it went to turn a
I have a sterling with a C 12 cat in it went to turn a corner in the truck just died cranks over just fine it has plenty of prime in the fuel system it starts and runs of either but dies it will not s… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
C15 reads no eng, wont fire,gives code 140. power at pins 70
c15 reads no eng, wont fire,gives code 140. power at pins 70 52 53 and i thunk 55, but also has power at pins 63 65 67 and 69 … read more
Nich1019
Nich1019
Cummins/Caterpillar Technician
Vocational, Technical or Trade School
2,492 satisfied customers
2004 Kenworth with a C15 cat single turbo MBN20934. cranks
2004 Kenworth with a C15 cat single turbo MBN20934. cranks but wont' start. Changed the fuel pump, checked fuel pressure, 95psi. Checked the power to the ECM, pin 70 12V 63/65/67 grounds show good. co… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,353 satisfied customers
2006 International 9400i, CAT C15 Acert. Turned truck off
2006 International 9400i, CAT C15 Acert. Turned truck off last night with no issues, cranks over but no start this morning. When cranking no tach signal, no oil pressure signal, no water temp signal. … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,353 satisfied customers
2004 Peterbilt CAT C15 Engine serial NO. MBN16913 crank no
2004 Peterbilt CAT C15 Engine serial NO. MBN16913 crank no start, no tach movement, 60psi fuel pressure while cranking, i have key activated power at pin 70,52,53 of the p1 ECM connector and ground at… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,353 satisfied customers
I am working on a c12 that won't start. Hooked up cat e-tech
I am working on a c12 that won't start. Hooked up cat e-tech and had no communication with ecm. Both fuses in battery box are good. Pulled front plug off eco and have no voltage on any pins with key o… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,353 satisfied customers
Cat Man, I have a 2003 Peterbilt with a CAT C-15 MBN16293,
Hi Cat Man, I have a 2003 Peterbilt with a CAT C-15 MBN16293, the engine will not start. When I turn on the ignition none of the dummy lights come on including the check engine light. The truck igniti… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,353 satisfied customers
C15 acert in 9900 int crank no start, Changed batteries,
Volt oilpr watertemp rpm and speedom not doing right after ign on… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,353 satisfied customers
Truck is a 2004 FL with C7 Cat, engine cranks but won't
Truck is a 2004 FL with C7 Cat, engine cranks but won't start. After several tries it will start, run for 5 to 10 minutes, and then shut off as if you turned the key off. I have replaced the timing se… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,353 satisfied customers
When drivers door is opened and closed it will shut off. Do
When drivers door is opened and closed it will shut off . Do you have any ideas of what the problem would be. It is a 387 Peterbilt 2005 has a c15 Cat motor.… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,353 satisfied customers
1998 freightliner FL70 truck,cat engine 3126 bin sitting about
1998 freightliner FL70 truck,cat engine 3126 bin sitting about 9 months, put new batteries in it new fuel filters cranks over fine,wont start. spray starting fluid it fires but wont run,i was thinking… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,353 satisfied customers
2001,379 peterbilt going down road and the truck cut off lost
2001,379 peterbilt going down road and the truck cut off lost power to gauges ,have fuel,truck will spin over, fuse to ecm in battery box is good ,could it be ignition, relay?… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,353 satisfied customers
I need a wiring diagram of the pin input and out puts on a
I need a wiring diagram of the pin input and out puts on a 3126 Cat its in a Freightliner 1FVACXAK93HK20610. SERIAL#CKM54644. WONT START WILL NOT COMMUNICATE! I really want to check power and grounds … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,353 satisfied customers
I have a 2003 sterling with a cat c12. Truck was idling and
I have a 2003 sterling with a cat c12. Truck was idling and then shut off and won't start back. Display on dash say NO ENG. Talked to a few dealers. They all say check the fuse by battery. Can't find … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,353 satisfied customers
I have a 2009 peterbilt model 378, with a c-13 LEE18461, I
I have a 2009 peterbilt model 378, with a c-13 LEE18461, I have power on pins 52, 53, and 70, and ground on 65 and 67. I ordered a new ECM, installed the reman, and I continue to get a j1939 code on t… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,353 satisfied customers
2000 GMC C6500 with a 3126CAT. Its my tow truck. We started
2000 GMC C6500 with a 3126CAT. Its my tow truck. We started having problems with it shutting down for no reason. We could always figure it out and get it to run but only for a few weeks and then we wo… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,353 satisfied customers
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