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No start on 3126. it is not showing injection control
no start on 3126. it is not showing injection control pressure on scan tool. has flash code 18. i hooked up a manual gauge and it is showing 250 psi while cranking. I dont think the ipr valve is being… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,803 satisfied customers
I'm getting codes 15 and 39 from my 2002 3126 powered dump
I'm getting codes 15 and 39 from my 2002 3126 powered dump truck, I replaced the sensor on the head and it's still showing codes 15 and 39, would a failing high pressure oil pump cause this or do you … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,553 satisfied customers
Have a 2005 freightliner with a 3126 cat motor, cranks but
Have a 2005 freightliner with a 3126 cat motor, cranks but wo't start ihave 2 active codes pid 164 fmi3 injection actuater pressure and pid110 fmi 3 coolant temp voltage high. I am not even showing th… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,553 satisfied customers
Cat Man, Still having a problem with a no start on the 2000
Hello Cat Man, Still having a problem with a no start on the 2000 7.2L Cat. Pulled the valve cover and checked injectors for dumping oil, they looked ok. Replaced the heui pump, still no start. Made u… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,553 satisfied customers
Mr CAT Man, 2002 Caterpillar C7 3126 7.2 liter Engine Engine
Mr CAT Man, 2002 Caterpillar C7 3126 7.2 liter Engine Engine Serial Number: C7KM44559 COMPLAINT: Of the mornings truck has plenty of power, runs great. The longer the day goes by making deliveries,the… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,553 satisfied customers
This is man, working on 2005 c-7 need some help with it. I do not to just replace
This is for cat man, working on 2005 c-7 need some help with it. I do not to just replace the high pressure pump without being sure about it . the truck came in on the hook, will not start on its own,… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,553 satisfied customers
Have a Cat 3126/C7 in a 2004 Ford f650 super duty flatbed tow
Have a Cat 3126/C7 in a 2004 Ford f650 super duty flatbed tow truck. Engine serial no. is HEP33849. Truck has 176,000 miles. Engine ran and started great until I did routine maintenance. Changed oil a… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,553 satisfied customers
Have a 3126 cat ckm that will not start. Replaced heui after
Have a 3126 cat ckm that will not start. Replaced heui after local diesel shop plugged their computer into it. It started and ran for several minutes died and will not start. Have a gauge in oil line … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,553 satisfied customers
Hello Cat Man Reference: 2000 GMC School Bus / Cat 3126
Hello Cat Man Reference: 2000 GMC School Bus / Cat 3126 Engine 8YL41397 Engine shut down, won't start, checked for fault codes, came up with 164-11 event. Checked for IPR Voltage Signal While Cranking… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,553 satisfied customers
I have 2006 IH 4400 dt 466 and it cranks but dont start. I
I have 2006 IH 4400 dt 466 and it cranks but don't start. I have clean all cables checked all fuses. Unplugged the three wire connector going in valve cover and tried cranking still won't start.Tried … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,553 satisfied customers
I have a1999 Int. 4700. It started running really bad just
I have a1999 Int. 4700. It started running really bad just like fuel problem so I changed the filters and if didn't help. I carried it to the dealer and after 11 hours of shop time they told Me I prob… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
2,892 satisfied customers
Cat Man; I contacted you this morning about my 1999 Safari
Cat Man; I contacted you this morning about my 1999 Safari Zanzabar Motor Home with a 3126 Caterpiller Engine that would not start. We had problems & I lost contact… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,553 satisfied customers
I have a 2000 F750 w/ a 3126 cat. It has a no start condition.
I have a 2000 F750 w/ a 3126 cat. It has a no start condition. I tested the hp oil, it has about 500 psi w/ cranking… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,553 satisfied customers
2000 GMC topkick with a 3126 cat engine. Shut off while running,
2000 GMC topkick with a 3126 cat engine. Shut off while running, will not restart. Checked voltage to ecm. 12 volts to pins 52 an 53 .I have 1200 psi. pressure in high pressure manifold while cranking… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,553 satisfied customers
Morning Cat man. Hope you can help me with another one. 2004
Morning Cat man. Hope you can help me with another one. 2004 Cat ACCERT, #BXS09645. Barely runs. Reads cyl1 inj current high, cyl 2 inj current high, cyl 6 inj current high. Flash Code for cyl 1 is 72… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,553 satisfied customers
I have an 2oo2 int dt466e will not start. I have replaced cam
I have an 2oo2 int dt466e will not start. I have replaced cam sensor ,checked high pressure oil pump have 800psi while cranking engine have no codes changed ecm from another truck checked all fuses in… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
2,892 satisfied customers
I have an 2000 frghtliner FL70 w/3126 CAT. runs great ,but
I have an 2000 frghtliner FL70 w/3126 CAT. runs great ,but cant shut it off ,want restart. I have done service, filters , fluids , no diag codes present. can you help?… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,553 satisfied customers
05 4300 with a dt466. Drove 100 mi, parked truck and wouldnt
05 4300 with a dt466. Drove 100 mi, parked truck and wouldn't start in the morning. Had a 335 code with a bsc 033 00613 14 spn code, also had a bcs cont code #3, spec instructions, and a 128 247 2 sid… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
254 satisfied customers
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Meet the Experts:

Daniel Wilson

Daniel Wilson

2,803 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

9,553 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

2,892 satisfied customers

worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling

Jeremy

Jeremy

Certified Truck/Bus Technician

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ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, EPA 608/609 HVAC Certified, Steering/Suspension and ABS/Brakes Technician

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cumminsdr

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Curtis B.

Curtis B.

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Technician turned service manager on multiple lines of trucks and engines, used in industry.

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dieseldan55

Contractor

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Road Service mechanic for Volvo Construction.

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