2004-2008 Ford E-Series Cooling System – Fuel Contamination Diagnostics

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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.

2007 Mazda MX-5 Miata Sport ENGINE TECHNICAL DATA SPECIFICATION

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Filed Under (Mazda) by admin on 18-03-2011

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Valve clearance [Engine cold] Compression Front oil seal press-in amount Cylinder Head Bolt Length L Cylinder Head Bolt Maximum Oil control valve resistance Ignition timing Idle speed Idle mixture Oil pressure (reference value) [oil temperature: 100° C {212°F}] Engine oil capacity (approx. quantity) (AT, 5MT) Engine oil capacity (approx. quantity) (AT, 5MT) Engine oil capacity (approx. quantity) (6MT) Engine coolant capacity (approx. quantity) Cooling system cap valve opening pressure Thermostat initial-opening temperature Thermostat full-open temperature Thermostat full-open lift Cooling fan motor current Fuel line pressure 250 kPa {2.55 kgf/cm2 , 36.2 psi} or more Fuel injector resistance 11.4-12.6 ohms [20°C {68°F}] Fuel injector leakage amount Less than 1 drop/2 min Fuel injection volume 204-216 ml {204-216 cc, 12.5-13.1 cu in}/min Battery electrolyte specific gravity [20°C {68°F}] 1.22-1.29 Battery load test current 46B24L (36): 135 A Battery back-up current Vehicles with immobilizer system: 25-45 mA Vehicles without immobilizer system: 30 mA or less Battery slow charge current 46B24L (36): 3.5-4.5 A Battery quick charge current [30 min,] 46B24L (36): 25 A Terminal B: B+ Terminal P: Approx. 1 V or less Generator standard voltage [IG-ON] Fuel hold pressure

2004-2007 Mazda RX-8 MIL ON – P2070 SET

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Filed Under (Mazda) by admin on 02-03-2011

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Some vehicles may experience a MIL with DTC P2070 (SSV Stuck Open). This may be caused by carbon build up near the SSV bushing, which may cause driveability concerns (hesitation and / or lack of power) and / or DTC P2070. A cleaning procedure and a revised SSV with stronger actuator force is now available. Customers having this concern should have their vehicle repaired using the following repair procedure. REPAIR PROCEDURE 1. Verify the following: – P2070 is set. – SSV sticks without failure of SSV solenoid valve switch. 2. Record freeze frame data. 3. Record customer radio station presets. 4. Disconnect negative battery cable. 5. Raise and support vehicle. 6. Drain engine coolant into a clean container for reuse after repair. Refer to Workshop Manual section 01-12 ENGINE COOLANT REPLACEMENT. 7. Remove right front wheel. 8. Remove rubber splash shield from inner fender to access right side of engine. 9. Remove 2 nuts (1) attaching air pipe (2) to exhaust manifold (3). 10. Disconnect port air bleed vacuum hose (4) from intake manifold. 11. Lower vehicle. 12. Remove battery cover, battery and battery tray to make work space. Refer to Workshop Manual section 01- 17 BATTERY REMOVAL / INSTALLATION. 13. Remove air control valve bracket bolt (5). 14. Disconnect main harness from air control valve bracket. 15. Disconnect upper hose (6) and vacuum line (7) from air control valve. 16. Position air control valve and air pipe out of the way by moving toward washer fluid reservoir. 17. Loose 3 water pump pulley bolts (8) but do not remove. 18. Loosen alternator belt tension bolt and remove attaching bolt and nut (9) from alternator and bracket. 19. Remove alternator belt. 20. Remove water pump pulley. 21. Remove 3 nuts (10) and alternator bracket (11). 22. Raise and support vehicle. 23. Remove 2 bolts (12) attaching port air bleed vacuum pipe.

2002 Lincoln LS Workshop Manual Cooling System Draining, Filling and Bleeding

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Filed Under (Lincoln) by admin on 23-01-2011

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Draining WARNING: Never remove the pressure relief cap while the engine is operating or when the cooling system is hot. Failure to follow these instructions can result in damage to the cooling system or engine or personal injury. To avoid having scalding hot coolant or steam blow out of the degas bottle when removing the pressure relief cap, wait until the engine has cooled, then wrap a thick cloth around the pressure relief cap and turn it slowly. Step back while the pressure is released from the cooling system. When you are sure all the pressure has been released, (still with a cloth) turn and remove the pressure relief cap. CAUTION: The coolant must be recovered in a suitable, clean container for reuse. If the coolant is contaminated it must be recycled or disposed of correctly. CAUTION: Care must be taken to ensure the accessory drive belt does not become contaminated with engine coolant. CAUTION: Some vehicle cooling systems are filled with Motorcraft Premium Engine Coolant VC-4-A (in Oregon VC-5, in Canada CXC-10) or equivalent meeting Ford specifications ESE-M97B44-A (green color). Others are filled with Motorcraft Premium Gold Engine Coolant VC-7-A or equivalent meeting Ford specification WSS-M97B51-A1 (yellow color). Always refill the cooling system with the same coolant that was drained from the system. Do not mix coolant types. 1. Release the pressure in the cooling system by slowly turning the pressure relief cap one half turn counterclockwise. When the pressure is released, remove the pressure relief cap. 2. NOTE: Less than 80% of coolant can be recovered with the engine in the vehicle. Dirty, rusty or contaminated coolant requires replacement. Place a suitable container below the radiator draincock. If equipped, disconnect the coolant return hose at the oil cooler. Close the radiator draincock when finished. Filling and Bleeding With RADKITPLUS 1. Using the special tool, install the RADKITPLUS and follow the RADKITPLUS manufacturer’s instructions to fill and bleed the cooling system. Filling and Bleeding Without RADKITPLUS CAUTION: Engine coolant provides freeze protection, boil protection, cooling efficiency and corrosion protection to the engine and cooling components. In order to obtain these protections, the engine coolant must be maintained at the correct concentration and fluid level in the degas bottle. When adding engine coolant, use a 50/50 mixture of engine coolant and clean, drinkable water. To maintain the integrity of the coolant and the cooling system:

2000-2002 Pontiac Grand Prix Low Engine Coolant Level Indicator Always on (Diagnose Low Coolant Level System

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Filed Under (Pontiac) by admin on 17-01-2011

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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.