OTC 6764 Operating instructions

Brand: OTC

Model: 6764

Type: Operating instructions

OTC 6764 IPR Controller is a diagnostic tool designed to assist in diagnosing hard start/no start conditions on Ford 6.0L diesel engines. It allows technicians to manually control the injection pressure regulator (IPR) duty cycle, enabling them to monitor ICP pressure and voltage, IPR duty cycle, and engine speed in real-time. The controller connects directly to the IPR harness and is powered by a 12-volt source, such as the vehicle's battery.

Form No. 554100

Operating Instructions

for: 6764

655 EISENHOWER DRIVE

OWATONNA, MN 55060 USA

PHONE: (507) 455-7000

TECH. SERV.: (800) 533-6127

FAX: (800) 955-8329

ORDER ENTRY: (800) 533-6127

FAX: (800) 283-8665

INTERNATIONAL SALES: (507) 455-7223

FAX: (507) 455-7063

1. Verify base engine oil pressure. The low pressure oil system must be working correctly in order for the

high pressure oil system to build pressure. This includes adequate baseline oil pressure and good quality,

correctly maintained oil.

2. Connect a diagnostic tool (OTC Pegisys, Genisys, Nemisys, or equivalent) to the vehicle's OBD II

connector.

3. Check ICP (injector control pressure) voltage with Key ON Engine OFF. If voltage is not between 0.15V

and 0.35V, do not continue with this test procedure. Refer to the vehicle service manual to diagnose why

the ICP voltage is not in normal operating range.

4. Verify the vehicle batteries are fully charged.

IPR Controller

Application: Diagnosing Hard Start / No Start on Ford 6.0L Diesel Engines

Sheet 1 of 1

Rev. B June 13, 2014

CAUTION: To prevent personal injury, wear

eye protection that meets ANSI Z87.1 and

OSHA standards.

Model

Year Recommended IPR Controller Access Points

2003 Top of engine

2004 Top or bottom of engine

2005

through

2007

Bottom of engine

Note: These models have a shield that blocks IPR access from the top of the engine. Remove

the shield if an IPR access point is needed at the top of the engine.

Figure 1

5. Select and monitor the following parameters from the

scan tool parameter list :

a. ICP—injector control pressure

b. ICP Voltage—injector control pressure voltage

c. IPR—injection pressure regulator duty cycle

d. RPM—engine speed

6. Disconnect the IPR (injection pressure regulator) harness.

Connect OTC No. 6764 IPR Controller directly to the IPR.

Find the best access point for the connection, depending

on the model year of the vehicle. Rotate the IPR valve

body if necessary. See Figure 1.

Operating Instructions Form No. 554100, Sheet 1 of 1, Back

ICP Pressure 500 psi (3.5 MPa) minimum

ICP should reach 500 psi (3.5 MPa) within ve (5) seconds

of cranking engine. Normal crank time is 3–5 seconds.

ICP Voltage 0.80 volts minimum

IPR Duty Cycle 45%—85%

Engine Speed 150 RPM

Normal Start Response Specications

7. Connect the battery clamps from the tool to a known good,

12-volt source; the vehicle battery is recommended. See

Figure 2.

8. Turn the power switch on the tool to the ON position.

9. Crank the engine and monitor ICP pressure.

• If ICP pressure is not within specications, proceed with OTC

No. 6763 Air Pressure Test (ICP) test procedures.

• If ICP pressure is within specications, continue with normal

diagnosis.

Figure 2

Connect red

battery clip

to positive

battery

terminal.

Connect black

battery clip to

chassis ground.

OTC 6764 Operating instructions

OTC 6764 Operating instructions

OTC 6764 Operating instructions

Related papers

Other documents