Filed Under (Nissan) by admin on 16-01-2011
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SERVICE INFORMATION If a 1999 Maxima will not start and the Security lamp is on solid with the ignition key turned to “ON”, use CONSULT or CONSULT-II with the NATS card to verify NATS DTC “ID DISCORD, IMM-ECM” is stored. If this DTC appears, use the Service Procedure in this bulletin to diagnose and repair the vehicle. For an introduction to and description of the Nissan Anti-Theft System (NATS), please refer to NTB99-063. SERVICE PROCEDURE NOTE: This procedure is described using CONSULT-II. CONSULT may also be used to perform the diagnostic procedures outlined below. However, the screens and steps will differ slightly from those shown here. 1. Install the NATS card (purple) into slot 1 of CONSULT-II (see Figure 1). Figure 2 3. Turn the ignition switch to “ON” (do not start the engine). CONSULT-II will then turn on automatically (see Figure 3). Now touch “START”. Figure 3 4. Select “NATS V2.0″ (see Figure 4).
Filed Under (Nissan) by admin on 21-09-2010
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ENGINE WILL NOT START NVIS/NATS SYSTEM DESCRIPTION/KEY REGISTRATION This version of NTB03-031 amends the Applied Vehicles. Please discard all paper copies of the earlier versions. APPLIED VEHICLES: 2005 and later Altima (L31), Pathfinder (R51), Frontier (D40), Xterra (N50), 350Z (Z33) 2004 and later Maxima (A34), Quest (V42), Armada (TA60), Titan (A60), Murano (Z50) 2004 350Z (Z33) built after the following:NOTE: ^ For 2003 Murano, and 2003-2004 350Z built before the above Date and VIN’s, see NTB02-071 ^ This bulletin does NOT cover 2002-2004 Altima. SERVICE INFORMATION ^ This bulletin covers the latest version of the Nissan Vehicle Immobilizer System/Nissan Anti-Theft System (NVIS/NATS). This system, referred to as “NATS”, is standard equipment on the Applied Vehicles listed above. ^ This version of NATS uses advanced anti-theft functions which are “password protected”. This helps prevent “unauthorized access” into the NATS registration procedure. ^ To obtain the password from ASIST, first use CONSULT-II to get the “BCM-specific” 5-digit number (PIN) code from the vehicle. ^ Unlike earlier NATS systems, this NATS system DOES NOT need to be Re-Initialized if the Electronic Control Unit (ECM) is replaced. NOTE: The ECM and Body Control Module (BCM) do work together, but the BCM in this system controls the information necessary to “tell” the ECM to start the vehicle. IMPORTANT: The NATS Procedure in this bulletin is for the Applied Vehicles only. Do not use this procedure on other NATS-equipped vehicles.
Filed Under (Ford) by admin on 04-05-2011
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6.0L DIESEL FUEL IN ENGINE COOLANT DIAGNOSTICS FORD: 2003-2005 Excursion 2003-2007 F-Super Duty 2004-2008 E-Series ISSUE Some 2003-2005 Excursion, 2003-2007 F-Super Duty and 2004-2008 E-Series vehicles equipped with a 6.OL engine may exhibit fuel in the engine coolant, due to leaks in the cylinder head fuel injector area. Symptoms may include fuel in engine coolant and coolant expulsion from the degas bottle. ACTION Follow the Service Procedure steps to correct the condition. SERVICE PROCEDURE Inspect the degas bottle for evidence of fuel in engine coolant. If diesel fuel is present, refer to the following Service Procedure. If not, follow normal diagnostics. NOTE IT IS VERY IMPORTANT TO ENSURE A COMPLETE FLUSHING OF THE ENGINE COOLING SYSTEM IS PERFORMED TO REMOVE ALL CONTAMINANTS FOLLOWING REPAIR. 1. Drain coolant from cooling system. 2. Remove all injectors from both cylinder heads. Refer to Workshop Manual (WSM), Section 313-04C. 3. Wipe injector bore clean of oil and fuel then apply a thin layer of bubbly type liquid hand soap, dish soap or laundry soap inside each injector bore. Ensure injector sleeve lip and cylinder head casting are coated with a soap layer. (Adding a small amount of water to the soap aids in creating bubbles) 4. Fit the cooling system pressure tester, refer to WSM, Section 303-03. (Do not add coolant) 5. Apply 5-10 psi (34-69 kPa) of air pressure to sealed cooling system. It is suggested to use a hand operated pressure tester or regulated shop air with tee in degas hose to degas bottle. NOTE MORE THAN 10 PSI (69 kPa) AIR PRESSURE CAN PUSH THE SOAP FROM THE LEAK POINT AND NO BUBBLES WILL BE PRESENT OR CREATED, MAKING DIAGNOSIS DIFFICULT. 6. Inspect each injector bore for bubbles. (A light and mirror or bore-scope may aid in pinpointing a leak location.) If bubbles are observed, determine if bubbles originate from the injector sleeve lip (Figure 1) or cylinder head casting. (Figure 2) Refer to cutaway view of the cylinder head. (Figure 3) a. Replace the injector sleeve if found to be leaking at sleeve lip, refer to WSM 303-04C. b. Replace cylinder head if leaking through casting, refer to WSM 303-01C. c. Flush cooling system, refer to another applicable Technical Service Bulletin (TSB) for proper cooling system flush procedures.
Filed Under (Ford) by admin on 26-01-2011
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Some 2003-2005 Excursion, 2003-2007 F-Super Duty and 2004-2008 E-Series vehicles equipped with a 6.0L engine may experience engine oil, transmission fluid or diesel fuel contaminating the cooling system. This flushing procedure is to be performed after the source of the cooling system contamination has been identified and repaired. ACTION Follow the Service Procedure steps to correct the condition. SERVICE PROCEDURE Follow the steps in sequence to effectively repair the vehicle: • Drain cooling system contaminates. • Clean cooling system with Simple Green® Heavy Duty Cleaner and Degreaser. • Clean cooling system with Motorcraft® Engine Cooling System Iron Cleaner. NOTE ALL STEPS MUST BE COMPLETED IN ORDER TO PROPERLY CLEAN THE COOLING SYSTEM. ANY DEVIATION FROM THE SERVICE PROCEDURE WILL RESULT IN SHORTENED COOLANT PROTECTION AGAINST CORROSION IN THE COOLING SYSTEM. 1. Determine cooling system condition. Is the contaminated coolant in a flowable, liquid or milky state? a. No – Do not proceed as this procedure does not apply. (Non-Flushable Examples Figures 1-3)
Filed Under (Pontiac) by admin on 17-01-2011
Tags: 2001 chevrolet lumina,
chevrolet impala,
coolant level,
cooling system,
engine coolant,
engine leaks,
engine oil,
level indicator,
level sensor,
oil contamination,
oldsmobile intrigue,
pontiac grand prix
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Subject: Models: Low Engine Coolant Level Indicator Always On (Diagnose Low Coolant Level System Operation/Check Sensor for Oil Contamination) 2000-2002 Buick Century, Regal 2000-2001 Chevrolet Lumina 2000-2002 Chevrolet Impala, Monte Carlo 2000-2002 Pontiac Grand Prix 2000-2002 Oldsmobile Intrigue Condition Some customers may comment that the low engine coolant level indicator is always illuminated. Cause The cause of this condition may be due to engine oil contaminating the coolant. Possible sources of oil contamination are internal engine leaks, improper service procedures, or the addition of some types of anti-leak additives to the cooling system. Once in the coolant, the oil leaves deposits on the level sensor creating an insulating film. This film results in a false activation of the coolant level indicator. Correction Diagnose low coolant level system operation and check the sensor for oil contamination using the procedure listed below. Important: No coolant supplements should be used in GM cooling systems, other than what is approved and recommended by GM. The use of “aftermarket” over-the-counter sealing and cooling supplements may affect the operation of the low coolant level sensor. Discoloration of the coolant recovery bottle is normal and does not necessarily indicate that coolant contamination is present. Flush cooling system only when instructed by this bulletin. 1. Verify that the coolant is at proper level in the radiator and the coolant recovery bottle. If the coolant is low, add proper amount of 50/50 water and DEX-COOL® mixture. If the low coolant light operates properly, diagnose the cooling system for loss of coolant as outlined in SI. DO NOT proceed further with this bulletin. 2. Remove the low coolant level sensor. Refer to Coolant Level Module Replacement in the Engine Cooling sub-section. 3. With the key on, the engine off and the coolant level sensor disconnected from the vehicle wiring harness, observe the low coolant light: • Light is on — Chassis wiring or instrument cluster concern. Follow the appropriate diagnostic information in SI. • Light is out — Proceed to Step 4.