Were is pipes connection.teikey y26pv

These connections might be secured with clips, clamps, or screws. Carefully release any fasteners holding the pipes in place, and then gently pull the pipes away from the bulkhead. Remember to drain any coolant from the system before disconnecting the pipes. If you're unsure, it's a good idea to consult your vehicle's manual or seek advice from a professional mechanic.

First of all, there is a recall for gas tank replacement for your vehicle. The dealer will replace it free. The link will get you to the document in PDF form
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It looks like there is a bracket on one end of the tank hidden by a heat shield

FUEL SUPPLY SYSTEM Fits Buick Rendezvous

If the distributor is fitted with a vacuum advance device, and has no connection to it that is where it goes.

Check in the engine bay and look for the two pipes connected at both ends of the fuel rail. The one connected to the fuel pressure regulator is the return pipe. Blow compressed air thru it and watch the pipes at the fuel pump end. Watch out for fuel sprays and protect yourself. You will be able to know which one is the return pipe.

Usually there is no access under the rear seat for safety reasons. Fuel Tank Removal & Installation 2002-2004 To Remove:

1. Relieve the pressure in the fuel system.
2. Lift the vehicle.
3. Remove the frame brace from the frame.
4. Remove the fuel tank shield from the fuel tank.
5. Drain the fuel from the tank into an approved container.
6. Loosen the fuel hose clamp and disconnect the hose from the fuel tank.
7. Disconnect the evaporative emission (EVAP) vent valve and fuel tank pressure sensor connectors. Evaporative emission cansister pipes removal and installation
   
   
8. Disconnect the evaporative emission (EVAP) vapor and vent valve pipes from the evaporative emission (EVAP) canister.
9. Disconnect the fuel return and feed pipes from the fuel tank.
10. To avoid system contamination, cap the evaporative emission (EVAP) and fuel pipes.
11. Use a jack to support the fuel tank. Fuel tank removal and installation
    
    
12. Detach the fuel tank straps from the frame.
13. Lower the fuel tank.
14. Disconnect the fuel sender connector.
15. Remove the fuel tank from the vehicle.

To Install:

1. Place the fuel tank under the vehicle.
2. Connect the fuel sender connector.
3. Attach the fuel tank straps to the frame. Torque the bolts to 24 ft-lb (32 Nm).
4. Remove the caps from the evaporative emission (EVAP) and fuel pipes.
5. Connect the evaporative emission (EVAP) vapor and vent valve pipes to the evaporative emission (EVAP) canister.
6. Connect the evaporative emission (EVAP) vent valve and fuel tank pressure sensor connectors.
7. Connect the fuel hose to the fuel tank. Torque the clamp to 22 in-lb (2.5 Nm).
8. Connect the fuel return and feed pipes to the fuel tank.
9. Lower the vehicle.
10. Refill the fuel tank.
11. Turn on the ignition for 2 seconds, with the engine off, and then turn off the ignition. After 10 seconds, turn the ignition back on with the engine off.
12. Lift the vehicle.
13. Check for leaks in the fuel lines.
14. Install the fuel tank shield onto the fuel tank.
15. Install the frame brace onto the frame.
16. Lower the vehicle.

2005-2007 To Remove:

1. Relieve the pressure in the fuel system.
2. Lift the vehicle.
3. Remove the frame brace from the frame.
4. Remove the fuel tank shield from the fuel tank.
5. Drain the fuel from the tank into an approved container. Evaporative emission cansister pipes removal and installation
   
   
6. Disconnect the evaporative emission (EVAP) canister fresh air, solenoid, and purge pipes from the evaporative emission (EVAP) canister.
7. Disconnect the fuel filler pipe recirculation hose from the fuel tank.
8. Loosen the fuel fill pipe clamp and disconnect the pipe from the fuel tank.
9. Disconnect the fuel feed and evaporative emission (EVAP) pipes from the fuel tank.
10. To avoid system contamination, cap the pipes.
11. Use a jack to support the fuel tank. Fuel tank removal and installation
    
    
12. Detach the fuel tank straps from the frame.
13. Lower the fuel tank.
14. Disconnect the evaporative emission (EVAP) vent valve, fuel tank pressure sensor, and fuel sender connectors.
15. Remove the fuel tank from the vehicle.

To Install:

1. Place the fuel tank under the vehicle.
2. Connect the evaporative emission (EVAP) vent valve, fuel tank pressure sensor, and fuel sender connectors.
3. Lift the fuel tank.
4. Attach the fuel tank straps to the frame. Torque the screws to 24 ft-lb (32 Nm).
5. Remove the caps from the pipes.
6. Connect the fuel feed and evaporative emission (EVAP) pipes to the fuel tank.
7. Connect the fuel fill pipe to the fuel tank. Torque the clamp to 22 in-lb (2.5 Nm).
8. Connect the fuel filler pipe recirculation hose to the fuel tank.
9. Connect the evaporative emission (EVAP) canister fresh air, solenoid, and purge pipes to the evaporative emission (EVAP) canister.
10. Lower the vehicle.
11. Refill the fuel tank.
12. Turn on the ignition for 2 seconds, with the engine off, and then turn off the ignition. After 10 seconds, turn the ignition back on with the engine off.
13. Lift the vehicle.
14. Check for leaks in the fuel lines.
15. Install the fuel tank shield onto the fuel tank.
16. Install the frame brace onto the frame.
17. Lower the vehicle.

NOTE Always maintain cleanliness when servicing fuel system components.

1. Relieve the fuel system fuel pressure.
2. Drain the fuel tank.
3. Raise the vehicle.
4. Disconnect the fuel tank wiring harness connector at the body pass through.
5. For 3.4L engines, disconnect the quick-connect fitting at the inlet side of the in-pipe fuel filter.
6. For 3.4L engines, disconnect the quick-connect fitting on the fuel return pipe, near the fuel filter.
7. Disconnect the fuel tank evaporative emission (EVAP) pipe quick-connect fitting near the fuel filter.
8. Remove the fuel feed, the fuel return, and the EVAP lines from the fuel pipe retainer.
9. Remove the retaining nut for the EVAP canister bracket.
10. Loosen the fuel tank filler pipe hose clamp.
11. Disconnect the fuel tank filler pipe from the fuel tank.
12. For 3.5L engines, disconnect the EVAP vent pipe near the fill pipe hose.
    NOTE Do not bend the fuel tank straps. Bending the fuel tank straps may damage the straps.
    
13. With the aid of an assistant, support the fuel tank and remove the fuel tank strap attaching bolts.
14. Remove the fuel tank from the vehicle and place the fuel tank in a suitable work area.
15. If the fuel tank is not being replaced, go to the Installation Procedure.
16. Disconnect the fuel tank wiring harness from the fuel sender assembly.
17. Remove the fuel sender shield from the fuel tank.
18. Disconnect the fuel feed and return pipe quick-connect fittings at the fuel sender.
19. Disconnect the EVAP vapor pipe assembly from the fuel sender.
20. Remove the fuel and/or EVAP pipe assembly from the fuel tank.
21. Remove the fuel sender assembly.
22. Remove the EVAP vent solenoid valve.
23. Remove the EVAP canister.

To install:

1. Install the EVAP canister.
2. Install the EVAP vent solenoid valve.
3. Install the fuel sender assembly.
4. Install the fuel and/or EVAP pipe assembly.
5. Connect the EVAP vapor pipe to the fuel sender assembly.
6. Connect the fuel feed and fuel return pipes at the fuel sender.
   NOTE Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
   
7. Install the fuel sender shield to the fuel tank and tighten the shield nuts to 53 inch lbs. (6 Nm).
8. Connect the fuel tank wiring harness to the fuel sender assembly.
9. With the aid of an assistant, position and support the fuel tank.
   NOTE Do not bend the fuel tank straps. Bending the fuel tank straps may damage the straps.
   
10. Install the fuel tank retaining strap attaching bolts and tighten the fuel tank retaining strap bolts to 35 ft. lbs. (47 Nm).
11. Install the EVAP canister retaining nut and tighten the retaining nut to 53 inch lbs. (6 Nm).
12. Connect the fuel tank filler pipe to the fuel tank and tighten the fuel tank filler pipe hose clamp to 22 inch lbs. (2.5 Nm).
13. Connect the fuel feed pipe quick-connect fitting at the inlet side of the fuel filter.
14. Connect the fuel return pipe quick-connect fitting near the fuel filter.
15. Connect the fuel tank EVAP pipe quick-connect fitting near the fuel filter.
16. Connect the fuel tank wiring harness connector at the body pass-through.
17. Lower the vehicle.
18. Add fuel and reinstall the fuel tank filler pipe cap.
19. Connect the negative battery cable.
20. Inspect for fuel leaks with the following procedure:
    1. Turn ON the ignition for 2 seconds.
    2. Turn OFF the ignition for 10 seconds.
    3. Turn ON the ignition.
    4. Inspect for fuel leaks.

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there are two large coolant hoses connected to your radiator. Follow the lowest hose to the engine which is connected to a pipe. The pipe is connected to an pipe-elbow. Behind the pipe-elbow you will find the thermostat. It is troublesome to replace due to the compressor and alternator that are in the way.

in auto gearbox cars there is connection between gearbox and engine. what you connected is a vacuum pipe to vacuum capsule,it for gear changes, it seems it faulty.

Removal Procedure
1. Disconnect the negative battery cable.
2. Drain the engine oil from the engine crankcase.
3. Remove the exhaust flex pipe retaining nuts from
the exhaust manifold.
4. Remove the exhaust flex pipe retaining nuts from
the catalytic converter or the connecting pipe.
5. Remove the exhaust flex pipe.
6. Remove the oil pan flange–to–transaxle retaining
bolts.
7. Remove the oil pan retaining bolts.
8. Remove the oil pan from the engine block.
Cleaning Procedure
1. Clean the oil pan sealing surface.
2. Clean the engine block sealing surface.
3. Clean the oil pan retaining bolts.
4. Clean the oil pan attaching bolt holes in the engine
block.
5. Clean the oil pan scraper.
Installation Procedure
1. Coat the new oil pan gasket with sealant.
Important : Install the oil pan within 5 minutes after applying
the liquid gasket to the oil pan.
2. Install the oil pan to the engine block.
3. Install the oil pan retaining bolts.
Tighten
Tighten the oil pan retaining bolts to 10 NSm (89 lb–in).
4. Install the oil pan flange–to–transaxle retaining
bolts.
Tighten
Tighten the oil pan flange–to–transaxle bolts to 40
NSm (30 lb–ft).
5. Install the exhaust flex pipe.
6. Install the exhaust flex pipe retaining nuts to the
exhaust manifold.
Tighten
Tighten the exhaust flex pipe–to–exhaust manifold
retaining nuts to 35 NSm (26 lb–ft).
7. Install the exhaust flex pipe retaining nuts to the
catalytic converter or the connecting pipe.
Tighten
Tighten the exhaust flex pipe–to–catalytic converter
or connecting pipe retaining nuts to 35 NSm (26 lb–ft).
8. Connect the negative battery cable.
9. Install the oil pan drain plug.
Tighten
Tighten the oil pan drain plug to 35 NSm (26 lb–ft).
10. Refill the engine crankcase with engine oil.