Skip to content

1999 volkswagen coolant system diagram

You search PDF repair manual about 1999 volkswagen coolant system diagram, if there are search results will appear below. If search results do not exist, please search by others keyword.

1999 Volkswagen New Beetle GL timing belt replacement manual

download
REMOVAL & INSTALLATION NOTE: For 2004, manufacturer does not provide a timing belt replacement interval. CAUTION: This application is an interference engine. Do not rotate camshaft or crankshaft when timing belt is removed, or engine damage may occur. NOTE: Engine code AEG is stamped into machined pad on front of cylinder block above crankcase breather, near cylinder head mating surface. See Fig. 1 . For all other 2.0L engines, engine code is stamped on transmission mating flange at the rear of the engine. See Fig. 2 . For all engines, code can also be found on the vehicle data plate and on a sticker on the timing belt cover. Fig. 2: Locating Engine Identification Code (AVH, AZG, BDC & BEV) Courtesy of VOLKSWAGEN UNITED STATES, INC. TIMING BELT Removal (AEG, AVH, AZG, BEV & BDC Engine Codes) 1. Remove right hand insulation tray from engine compartment. Remove engine cover. Rotate serpentine belt tensioner clockwise to relieve belt tension. Remove serpentine belt. See Fig. 3 . Lock in place using Mandrel (T10060) or a drift. Fig. 3: Releasing Serpentine Belt Tensioner Courtesy of VOLKSWAGEN UNITED STATES, INC. 2. Remove serpentine belt tensioner assembly. See Fig. 4 . Turn crankshaft to TDC position. See Fig. 5 . Align TDC marks visible in bellhousing access hole. See Fig. 6 . Remove upper timing belt cover. Ensure camshaft sprocket timing mark aligns with mark on rear cover. See Fig. 5 . 3. Support engine from above or below with floor jack to take engine weight off of mounts. Remove coolant reservoir and set aside. On Golf and Jetta, remove power steering reservoir (hoses attached), and set aside. On New Beetle, pull off EVAP hoses at EVAP canister and throttle valve housing. 4. On all models, remove engine mount from timing belt end of engine. See Fig. 7 . Remove crankshaft pulley from crankshaft sprocket. It is NOT necessary to remove center bolt (center bolt is torque-to-yield type that must be replaced if removed). 5. Remove timing belt covers. Remove engine support from front of engine. See Fig. 4

1999 Saturn SL1 L4-1.9L SOHC VIN 8 Engine – Driveability Concerns/ Cooling System DTC’s Set

download
1. Disconnect engine coolant temperature sensor electrical connector and inspect sensor and connector terminals for corrosion and/or evidence of engine coolant. ^If terminals are corroded or if there is evidence of engine coolant proceed to step 4. ^If terminals are not corroded and there is no evidence of engine coolant, reconnect the electrical connector and continue to next step. 2. Perform one or both of the following checks to determine whether the engine coolant temperature sensor is providing the correct temperature indication. If engine coolant temperature sensor reading does not pass either of the above tests, continue with next step. ^If engine is at ambient temperature (vehicle has been sitting overnight or not started for several hours), use a Scan tool to compare the inlet air temperature ( IAT ) to the engine coolant temperature ( ECT ). These two readings should be within 2°C (4°F) of each other. ^If engine is at operating temperature, install a thermometer in the coolant recovery reservoir. With the engine running and A/C off, use a Scan tool to compare the engine coolant temperature sensor reading to the thermometer reading. These two readings should be within 8°C (15°F) of each other If engine coolant temperature sensor reading passes both of the tests above, refer to appropriate symptom diagnostic chart in the Engine/Emissions Controls Section of applicable Engine Service Manual. 3. Turn ignition off. 4Remove coolant surge tank cap. 5. Drain at least 1.9 L (2 Qt.) of engine coolant from the cooling system by opening radiator drain valve or removing engine drain plug. Collect engine coolant in a container. 6. Disconnect engine coolant temperature sensor electrical connector. 7. Remove engine coolant temperature sensor from cylinder head. 8. Obtain replacement engine coolant temperature sensor (P/N 21025106). 9. Use appropriate tap to clean sensor mounting hole of any thread sealant residue. 10. Install engine coolant temperature sensor in cylinder head. Torque: Engine Coolant Temperature Sensor: 8 Nm (71 in-lbs) 11. Inspect harness connector terminals for corrosion and/or evidence of engine coolant. If harness connector terminals are corroded or there is evidence of engine coolant, the harness connector must be replaced with new connector (P/N 12117087-includes: connector, terminals, wires, and splice sleeves). 12. Connect engine coolant temperature sensor connector. 13. Transfer engine coolant drained in step 5 into coolant surge tank. If necessary fill coolant surge tank to the FULL COLD range with 50/50 solution of correct type of antifreeze and clean water. 14. Start engine and check for leaks. 15. Run engine until upper radiator hose is hot, then add additional coolant if needed to bring the level to the FULL COLD level (1991-early 1997) or within the Min./Max. cold range (late l997-2001). 16. Install coolant surge tank cap.

Low Engine Coolant Level Indicator Always On (Diagnose Low Coolant Level System Operation/Check Sensor for Oil Contamination)

download
2000-2002 Buick Century, Regal 2000-2001 Chevrolet Lumina 2000-2002 Chevrolet Impala, Monte Carlo 2000-2002 Pontiac Grand Prix 2000-2002 Oldsmobile Intrigue 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: Subject: Low Engine Coolant Level Indicator Always On (Diagnose Low Coolant Level System Operation/Check Sensor for Oil Contamination) Models: 2000-2002 Buick Century, Regal 2000-2001 Chevrolet Lumina 2000-2002 Chevrolet Impala, Monte Carlo 2000-2002 Pontiac Grand Prix 2000-2002 Oldsmobile Intrigue • Light is on — Chassis wiring or instrument cluster concern. Follow the appropriate diagnostic information in SI. • 4. With the key off, connect the coolant level sensor into the vehicle’s wiring harness. Connect a ground wire (1) to the battery negative terminal. Using a sharp probe (3) attached to the ground wire, ground the coolant sensor probe (2) as shown in the illustration. Make sure a good contact is made. With the key on and the engine off, observe the low coolant light for at least 15 seconds. 5. Using a small wire brush or emery cloth, polish the low coolant level sensor probe to remove any film or oxidation. The probe should be a bright brass color when finished. Use Brake Parts Cleaner to flush removed deposits from the low coolant sensor probe. Reinstall the low coolant sensor into the vehicle and proceed to Step 6. 6. Flush the cooling system and install new DEX-COOL® mixture as outlined in the SI. Check the vehicle’s warranty history to determine if any engine gasket had recently been changed. If there has not been a recent gasket replacement, locate and repair the source of the engine oil contamination

2000 Ford Ranger Cooling System Draining Filling and Bleeding Repair Manual

download
NOTE: Less than 80% of the coolant capacity can be recovered with the engine in the vehicle. Dirty, rusty or contaminated coolant requires replacement. 1. Release the pressure in the cooling system by slowly turning the pressure relief cap one half to one turn counterclockwise to the first stop on the filler neck. When the pressure has been released, remove the pressure relief cap. 2. Raise and support the vehicle, For additional information, refer to Section 100-02 . 3. Remove the lower radiator cover. 4. Place a suitable container below the radiator draincock. Drain the coolant. 5. 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 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. 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: * Add Motorcraft Premium Engine Coolant VC-4-A (in Oregon VC-5, in Canada CXC-10) or equivalent meeting Ford specification ESE-M97B44-A. * Do not add Motorcraft Specialty Engine Coolant such as VC-2 or an equivalent meeting Ford specification WSS-M97B44-D. Mixing coolants can degrade the coolant’s corrosion protection. * Do not add alcohol, methanol, or brine, or any engine coolants mixed with alcohol or methanol antifreeze. These can cause engine damage from overheating or freezing. * Do not mix with recycled coolants unless they meet the requirements of Ford specification ESE-M97B44-A or WSS-M97B51-A1. Not all coolant recycling processes meet these Ford specifications. Use of such coolants can harm the engine and cooling system components. All engines 1. Install the lower radiator cover.

1993-2002 Volkswagen Golf, Jetta, GTI, Cabrio A/C controls and mechanical components service manual

download
1 – . Dust and pollen filter Where applicable 2 – . Plenum cover Removing/installing – -”> 3 – Evaporator water drain valve Located behind bulkhead insulation Removing/installing Fig. 2 Removing and installing evaporator water drain valve 4 – . Heater core connections and vacuum hose guide 5 – . Fresh Air/Recirculating Flap Two-Way Valve N63 Valve open when voltage applied Vacuum hose layout Vacuum hose layout 6 – . Coolant Fan Control (FC) Control Module J293 With fuse Fuse Strip S88 (1993 m.y.) With fuses Coolant Fan Second and Third Speed Fuse S107 and Coolant Fan First Speed and A/C Clutch Fuse S108 (1994 m.y. micro ) Connector terminal identification: micro 09.93 Fig. 5 Connector terminal identification of Coolant Fan Control (FC) Control Module J293 ( 09.93) 10.93 micro Fig. 6 Connector terminal identification of Coolant Fan Control (FC) Control Module J293 (10.93 ) 7 – . Vacuum reservoir Insert vacuum hose 30 mm (1.2 in.) into reservoir Removing/installing Fig. 7 Removing and installing vacuum reservoir A/C and heating system components, engine compartment Vacuum hose Vacuum hose layout Vacuum hose layout 9 – . A/C Cut-Out Thermal Switch F163 and Third Speed Coolant Fan Control (FC) Thermal Switch F165 A/C Cut-Out Thermal Switch F163 only on vehicles with engine codes AAA, AAZ, ABA, ACC A/C Cut-Out Thermal Switch F163 switches A/C Clutch N25 off at high engine coolant temperature; OFF (switch open) above 119 degree C (246 degree F); ON (switch closed) below 112 degree C (234 degree F) Third Speed Coolant Fan Control (FC) Thermal Switch F165 only on vehicles with 3- speed coolant fan motor Third Speed Coolant Fan Control (FC) Thermal Switch F165 switches radiator coolant fan to 3rd speed as engine coolant temperature increases; 3rd speed ON (switch closed) above 112 degree C (234 degree F); OFF (switch open) below 108 degree C (226 degree F) Removing and installing (engine code AAA) Fig. 3 Removing and installing A/C Cut- Out Thermal Switch F163 and Third Speed Coolant Fan Control (FC) Thermal Switch F165 (2.8 liter VR6 engine code AAA) Removing and installing (engine code ABA) Fig. 4 Removing and installing A/C Cut- Out Thermal Switch F163 (2.0 liter engine code ABA) 10 – . Condenser* 11 – . Pressure relief valve*