OTC 6763 Instrucciones De Operación

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
Application: Diagnosing Leaks in the High Pressure Rail and Pump on Ford 6.0L Diesel Vehicles
No. 551581
Adapter
Notes:
•
The air pressure applied during these tests must be at least 100 psi (689 kPa). When pressure is applied
for the first time, it may take 3 – 5 minutes before the leak can be heard. This allows air pressure to displace
engine oil in the Injection Control Pressure (ICP) system. The Injection Pressure Regulator (IPR) valve
may need to be energized open more than once to completely clear oil from the ICP system. Once the oil
is displaced, an air leak may be heard almost immediately after applying air pressure.
•
An air leak on the high pressure oil pump shaft lip seal is normal during this procedure. This is not an indication
of a high pressure oil leak, and the high pressure oil pump should not be replaced for this condition.
•
Replacement parts may leak unless all surfaces are oil-saturated under system pressure and seals are
seated during installation.
High Pressure System Air Pressure Test
CAUTION: To prevent equipment damage,
•
Do not leave the IPR valve energized longer than 120 seconds at a time.
•
Inspect adapter o-rings before performing these tests. Replace o-rings if worn, cracked, or cut.
1. Verify base engine oil pressure.
2. Turn the vehicle's ignition to Key ON, Engine OFF.
3. Use a diagnostic tool (OTC No. 6764 or equivalent) to close the Injection Pressure Regulator (IPR) valve.
4. Apply shop-air pressure of at least 100 psi (689 kPa) to the high pressure oil system:
2003 – 2004-1/2 Vehicles: Use adapter No. 551581; remove valve cover to access high pressure oil port.
2004-1/2 – 2007 Vehicles: Use adapter No. 511671; use the Injection Control Pressure (ICP) location.
Note: It may be possible to use adapter No. 511671 on 2008—newer 6.0L Econoline vans.
5. Use a diagnostic tool (OTC No. 6764 or equivalent) to open the IPR valve and allow the oil to drain. An
air leak should be heard. Close the IPR valve.
•
If no change is heard, the IPR valve may not be functioning as commanded. Install a new IPR valve and
repeat the test.
•
If the no-start condition exists, an audible leak may be identified by using a mechanic's stethoscope (OTC
No. 4491 or equivalent) through the oil fill tube or left valve cover crankcase vent hole.
Operating Instructions
for:
Test Adapters
No. 511671
Adapter
CAUTION: To prevent personal injury,
wear eye protection that meets ANSI
Z87.1 and OSHA standards.
Form No. 551980
© Bosch Automotive Sevice Solutions LLC
Rev. C June 5, 2014
6763