Replaced o-ring on upper tube from radiator on 95 acclaim still leaking

3.0L Engine

VIN S Engine

1. Before servicing the vehicle, refer to the precautions section.
2. Drain the cooling system.
3. Remove or disconnect the following:

• Splash shield
• Lower heater hose
• Radiator lower tube bolt
• Radiator upper front tube bolt
• Air cleaner assembly
• Battery and tray
• Water pump belt
• Upper radiator hose
• Engine vent hose
• Transaxle 10 pin connector
• Radiator bypass hose assembly
• Thermostat housing
• A/C compressor brace, if equipped
• Water pump mounting nuts
• Connector hose
• Water pump

To install:

1. Install or connect the following:

• Water pump
• Connector hose
• Water pump mounting nuts and tighten them to 15-22 ft. lbs. (20-30 Nm)
• A/C compressor brace, if equipped, and tighten the nuts to 15-22 ft. lbs. (20-30 Nm)
• Thermostat housing
• Radiator bypass hose assembly
• Transaxle 10 pin connector
• Engine vent hose
• Upper radiator hose
• Water pump belt
• Battery and tray
• Air cleaner assembly
• Radiator upper front tube bolt
• Radiator lower tube bolt
• Lower heater hose
• Splash shield

2. Fill the cooling system.
3. Start the engine and check for leaks.

Thermostat - 3.0L (2V) Removal and Installation

1. Partially drain the engine cooling system. For additional information, refer to COOLING SYSTEM DRAINING, FILLING AND BLEEDING .
2. Remove the three thermostat housing bolts. Fig. 25: Removing Thermostat Housing Bolts
   Courtesy of FORD MOTOR CO.
   
3. Remove the thermostat O-ring seal.
   • Inspect the sealing surfaces. Fig. 26: Removing Thermostat O-Ring Seal
     Courtesy of FORD MOTOR CO.
     
4. To install, reverse the removal procedure.

Thermostat - 3.0L (4V) Removal and Installation

1. Raise and support vehicle. For additional information, refer to JACKING & HOISTING .
2. Remove the front splash shield. For additional information, refer to FRONT END BODY PANELS .
3. Drain the cooling system. For additional information, refer to COOLING SYSTEM DRAINING, FILLING AND BLEEDING .
4. Remove the cooling tube bolt. Fig. 27: Removing Cooling Tube Bolt
   Courtesy of FORD MOTOR CO.
   
5. Lower the vehicle.
6. Remove the radiator upper cooling tube bolt. Fig. 28: Removing Radiator Upper Cooling Tube Bolt
   Courtesy of FORD MOTOR CO.
   
7. Disconnect the upper radiator hose and engine vent hose. Fig. 29: Disconnecting Upper Radiator Hose And Engine Vent Hose
   Courtesy of FORD MOTOR CO.
   
8. Remove the two bolts, and separate the radiator tube from the thermostat housing. Remove the thermostat. Fig. 30: Removing Bolts And Separating Radiator Tube From Thermostat Housing
   Courtesy of FORD MOTOR CO.
   
9. To install, reverse the removal procedure.

You got it right.
To determine which one is the right one:
1- Take ioff the thermostat, Run the engine without it. If water is coming out at the upper hose then pump is working.
2- Hook the upper hose back to the radiator without thermostat, run the engine and press the upper hose to see if coolant flowing throu it. If it is not then , the radiator gets clogged up.
3- At this point , you know what to do. One advice is that, get the new radiator if it is bad. Don't waste money to have it rebuilt. Good luck.

Astro, Safari 1997-2005

Fuel Pressure Regulator - Removal & Installation

1. Disconnect the negative battery cable.
2. Relieve the fuel system pressure. Refer to the fuel system relief procedure in this section.
3. Remove the upper manifold assembly.
4. Remove the fuel pressure regulator vacuum tube.
5. Disassemble the fuel pressure regulator snapring retainer.
6. Remove the fuel pressure regulator assembly and the O-rings. Discard the O-rings, filter and back-up O-rings.
   
   
   Fig. The fuel pressure regulator is retained by this clip
   
   
   
   Fig. Replace the O-rings whenever the fuel pressure regulator is removed
   

To install:

1. Lubricate the O-rings with clean engine oil and install as an assembly.
2. Install the fuel pressure regulator, attach the vacuum tube.
3. Install the snapring retainer.
4. Install the upper manifold assembly.
5. Connect the negative battery cable.

1. Relieve the fuel system pressure.
2. Remove the upper intake manifold assembly.
3. Remove the fuel pressure regulator retainer clip (5).
4. Pull and twist the fuel pressure regulator (6) in order to remove the fuel pressure regulator from the fuel pressure regulator housing using a shop towel to catch any spilled fuel.
5. Remove the regulator seal lower O-ring (3).
6. Remove the regulator assembly filter (2).
7. Remove the regulator seal upper O-ring (1).
8. Remove the regulator seal backup ring (7).
9. Discard the O-rings.
   
   
   Fig. Exploded view of throttle body assembly (click for zoom)
   

To install:

NOTE If the fuel pressure regulator is to be reinstalled, inspect the filter screen for contamination. If the filter screen is contaminated, replace the regulator.

1. Lubricate the new O-rings with clean engine oil.
2. Install the regulator seal backup ring (7).
3. Install the regulator seal upper O-ring (1).
4. Install the regulator assembly filter (2).
5. Install the regulator seal lower O-ring (3).
6. Assemble the regulator (6) with the vacuum tube pointing down into the regulator retainer clip.
7. Install the fuel pressure regulator retainer clip (5).
8. Install the upper manifold assembly.
9. Connect the negative battery cable.
10. Inspect for leaks.
    1. Turn the ignition ON , with the engine OFF , for 2 seconds.
    2. Turn the ignition OFF for 10 seconds.
    3. Turn the ignition ON , with the engine OFF .
    4. Inspect for fuel leaks.
11. Install the engine cover.

Hope helps with this (remember comment and rated this).

1. Disconnect battery ground cable.
2. Remove the battery.
3. Remove clip retaining constant control relay module and position module aside.
4. Remove battery tray.
5. Remove radiator cap.
6. Raise vehicle on hoist.
7. Remove radiator splash shield.
8. Drain engine cooling system.
9. Remove radiator mounting bracket assembly.
10. Remove lower radiator hose.
11. Partially lower vehicle.
12. Remove upper radiator hose.
13. Remove radiator overflow hose.
14. Remove upper A/C condenser core retaining bolts.
15. Remove upper A/C transmission oil cooler tube clips.
16. Remove upper transmission oil cooler tube (7C410) using 3-8 inch fuel line disconnect tool 310-041 (T90T-9550-C).
17. Raise vehicle on hoist.
18. Remove lower transmission oil cooler tube clips.
19. Remove lower transmission oil cooler tube using 3/8 inch fuel line disconnect tool 310-041 (T90T-9550-C).
20. Remove transmission oil cooler bracket and position transmission oil cooler aside.
21. Remove lower A/C condenser core bolts and position A/C condenser core (19712) aside.
22. Remove radiator support bracket.
23. Remove radiator.

No freeze plug on radiator, freeze plugs only on engine block and cylinder head's. radiator drain ****, located on passenger side below upper coolant hose all the way to the button of radiator.

Disconnect battery ground cable. Remove battery. Remove battery tray. Remove clip retaining contant control relay module and position module aside. Remove radiator cap. Raise vehicle front end as high as possible. Remove radiator splash shield. Drain radiator. Remove the radiator mounting bracket assembly. Remove lower radiator hose. Partially lower vehicle. Remove upper radiator hose. Remove radiator overflow hose. Remove upper A/C condenser core retaining bolts. Remove upper transmission oil cooler tube clips. Remove lower transmission oil cooler tube. Raise vehicle. Remove lower transmission oil cooler tube clips. Remove lower transmission oil cooler tube. Remove transmission oil cooler bracket and position transmission oil cooler aside. Remove lower A/C condenser core bolts and position A/C condenser core aside(be careful not to loosen the AC condenser lines. Remove radiator support bracket. Remove radiator out through the bottom of the vehicle.
Installation
Position radiator. Position radiator support bracket and tighten nuts. Position A/C condenser core and tighten lower A/C condenser core bolts. Position transmission oil cooler tube and install transmission oil cooler tube bracket. Install lower transmission oil cooler tube. Install lower transmission oil cooler tube clips. Install lower radiator hose. Install radiator mounting bracket assembly. Tighten bolts. Install radiator splash shield. Lower vehicle. Install upper tranmission oil cooler tube. Install upper transmission oil cooler tube clips. Install upper A/C condenser core retaining bolts. Tighten bolts. Install radiator overflow hose and tighten clamps securely. Install upper radiator hose. Position constant control relay module and clip securely. Install battery tray. Install battery. Connect battery ground cable. Fill and bleed cooling system. Start engine and inspect for leaks.

COULD BE COOLANT SENSOR,HEAD GASKET,CHECK THE TIMING,THE PROPER MIXTURE OF COOLANT,WATER PUMP.DID YOU HAVE IT CHECKED OUT?ANY LEAKS?HEAT WORK WITH FAN?

Hello **** B. First double check the hose connection for the leak, it can drain to another connection & appear to leak there. Second, yes there is a gasket on the pipe connection to the block. To replace the gasket, park the car in a location for least 5 to 6 hours to cool down mabe longer. Have the gasket replacement, a tube of gasket sealant, 2 gallons of antifreeze, a drain bucket, and a very large rag or rags. Remove the hose, catch the fluid in bucket, remove the pipe, clean the old gasket area, apply gasket sealent, attache gasket, mount the pipe, tighten all mounting bolts a 1/2 to 3/4 turn each until torqued downed evenly, and attache hose. Fill reservoir, with radiator cap off, start engine and add coolant to radiator until full and you see fluid flowing. Apply cap & check for leaks. Easy???????? Good Luck.

thermostat