IK1200991 ­ Diagnosing Hard Start / No Start complaints or ICP pressure concerns with t... Page 1 of 4

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IK1200991

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10/6/2014
Mark
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Title : Diagnosing Hard Start / No Start complaints or ICP pressure concerns with the CPA Tool
Applies To : EPA 2007, EPA 2010, HD OBD (2013) MaxxForce DT, 9 & 10 engines
Vehicle Symptoms:

• Extended cranking / Hard Start
• Low ICP pressure
• Fault codes / DTCs:
◦ DTC 2335 or SPN 164 FMI 1 (ICP Unable to Build During Engine Cranking)
◦ DTC 3374 or SPN 164 FMI 17 (ICP Unable to build during test)
◦ SPN 164 FMI 18 (ICP below desired level)
◦ SPN 164 FMI 13 (ICP adaptation in-range fault)
◦ DTC 3334 or SPN 8492 FMI 1 (ICP below desired level)
◦ DTC 2242 or SPN 1443 FMI 2 (ICP adaptation in range fault)
Step-Based diagnostics with CPA Tool:

>>here Service > Engine
• HPOP Oil Inlet Screen
•

If SPN 164 FMI 16 or FMI 15 set after a HPOP replacement, please refer to article IK1201043 (ICP Adaptation)
Warranty information relating to CPA

•
•
•
•

WPL14-006G ­ Warranty iApproval Requirements (HPOP test issues a WAC (warranty authorization code) for high pressure pump
a CPA HPOP WAC is required on warranty claims for high pressure oil pumps or the iApprove process must be followed.
WIL2800061 CPA WAC explanation
The CPA HPOP WAC has a 5thdigit (1,2,3, or 4). The SRT’s are synchronized to the WAC. If the WAC ends in “2” for example, then the
proper SRT is the Qualifier 2 (H.P. Oil Pump Diag Steps 1-2). If the WAC ends in “4”, then the proper SRT is the Qualifier 2 (H.P. Oil Pump
Diag Steps 1-4).
• CPA HPOP test SRT's related to high pressure pump diagnostics were released on 01/06/14.
• Examples

• Link to SRT Manual (to look up high pressure oil pump (HPOP) R&R

CPA HPOP Tips:

• Perform CPA HPOP test with the engine at the same temperature as the complaint or symptom is occurring.
• If the CPA issues a "Engine oil pressure(EOP)too low during cranking" message do not ignore this. Broken piston cooling
nozzles have been found after diagnosing this fault. Do not use a mechanical gauge as a substitute for the electronic tool.
• If you replace a HPOP (which includes a new IPR valve) or if you replace just the IPR valve it is important to run the engine (preferably a road
test) before repeating a CPA HPOP Test 1 or 2 as IPR valve break­in is important.
• If the engines passes test 1 you should advance to test 2. See below.

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11/3/2014

IK1200991 ­ Diagnosing Hard Start / No Start complaints or ICP pressure concerns with t... Page 3 of 4

How to attach CPA HPOP test results to a Case File:
Refer to IK1200812 (near the bottom)
The CPA software records every completed HPOP test and automatically creates a .zip file that contains every test that was completed on a VIN.
This zip file resides in a folder on the EZ­Tech titled "Engine Cylinder Performance Analyzer"
Do not attach .hpop files to Case Files. Tech Services can only access CPA .zip files
Warranty Coding:
12000 / 454 PUMP, OIL/FUEL (HI PSI INJECTION SYSTEM) / T- Inoperative
Contact Information:
If you would like to order additional Tools, have questions, concerns, feedback, or need replacement parts, please contacts the
Navistar Service Tool Support Center.

Phone: 1-800-365-0088 (Toll Free) or 630-985-4171 OR

Submit a Service Tool IKNow Case

Feedback Information

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You received the following feedback From: u026164 - Oronde Davis Email Address: SMTP:{Oronde.Davis@Navistar.com}
Oronde.Davis@Navistar.com Feedback: In the CPA HPOP Tips section, the caption for the no wac mode needs to be removed or
changed. The instruction states if the tech should use the wac if he/she believes the complaint is cause by the HPOP or IPR. The tech
should also proceed if there is a possible leak on the rail because test 3 decay time shows if there is a leak.

U026164
DY08955

You received the following feedback From: dy08955 - David Gabrielle Email Address: [email protected] Job Classification: SE008,
Service Technician Dealer: TRUCK KING INTL IDEALEAS Feedback: In HPOP Tips it states "IPR valve break-in is important" . Please
give more details about this term.

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Created
Date
7/18/2014
1:35:56 PM
10/7/2014
5:52:10 AM

11/3/2014

IK1200991 ­ Diagnosing Hard Start / No Start complaints or ICP pressure concerns with t... Page 4 of 4

You received the following feedback From: dyydwc9 - Dale Crawford Email Address: [email protected] Job
Classification: SE003, Service Manager Dealer: RUSH TRK CTR OF IL Feedback: Description: low power multiple icp codes Steps
Taken: am running cpa tool getting no results on my inj control pressure under pressures i am showing no pressure only a red error did
not know if this was meanning my sensor was bias or not also says it is showing risidual pressure in the oil rail when i run my
DYYDWC9
HPOPtests could this be sensor telling ecm that there is still pressure in rail DTCS: Engine MaxxForce I6 2332 ICP(FRP) above KOEO
Spec 13 Engine MaxxForce I6 2335 ICP(FRP) Unable to Build During Engine Cranking 1 Engine MaxxForce I6 1125 ICP(FRP) signal
Out of Range HIGH 3 Engine MaxxForce I6 1125 ICP(FRP) signal Out of Range HIGH 3 Engine MaxxForce I6 3333 ICP(FRP) above
desired level 0

10/23/2014
5:03:16 PM

Copyright © 2014 Navistar, Inc.

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11/3/2014