Inlet heater hose replacement guide

I would use OEM parts, not after market as this sort of thing can happen and cause problems.
Sounds like you need a different hose for the replacement housing.

See me at website for images can only send one through this channel. www.autorepairhelp.us

Best Regards,

Master Tech Lee

HEATER BOX SHIELD
Image
Heater Box Heat Shield
Remove or Disconnect
1. Fasteners that retain heat shield to heater box assembly.
Image [ Heater Box Heat Shield
Install or Connect
1.Fasteners that retain heat shield to heater box assembly.
Tighten
-Bolts Screws to 2.2 N.m (25 lb in).
HEATER ASSEMBLY
Image ' Heater Hoses
Image ' A/C Evaporator Tube Assembly
Image ' Evaporator Core
Image ' Evaporator Core Assembly
Image ' Heater Assembly
Remove or Disconnect
1.Engine coolant. Refer to Draining and Filling Cooling System in Engine Cooling.
2.Heater hoses. Refer to Heater Hoses.
3.Instrument panel. Refer to Instrument Panel Replacement in Interior Trim.
4.Air inlet assembly. Refer to Air Inlet Assembly Replacement.
5.Vacuum lines.
Important
-Clearly label vacuum line connections.
6.Heater assembly studs inside engine bay.
7.Blower motor resistor. Refer to Blower Motor Resistor.
8.Stud inside heater core housing.
-Stud is revealed by removing the blower motor resistor.
9.Rear case screws.
10.Heater assembly.
11.Seals.
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Heater Hoses
A/C Evaporator Tube Assembly
Evaporator Core
Evaporator Core Assembly
Heater Assembly
Install or Connect
1.Seals.
2.Heater assembly.
3.Rear case screws.
4.Stud inside heater core housing.
Tighten
-Stud to 1.9 N.m (17 lb in).
5.Blower motor resistor. Refer to Blower Motor Resistor.
6.Heater assembly studs inside engine bay.
Tighten
-Studs to 1.9 N.m (17 lb in).
7.Vacuum lines.
8.Air inlet assembly. Refer to Air Inlet Assembly Replacement.
9.Instrument panel. Refer to Instrument Panel Replacement in Interior Trim.
10.Heater hoses. Refer to Heater Hoses.
11.Engine coolant. Refer to Draining and Filling Cooling System in Engine Cooling.
-Check the system for leaks.


Auto Repair Help US

from thermostat hosing, through carby to heater core. other back to water pump

On almost all cars if you follow the upper radiator hose to where it goes into the motor, that is where the termostate is.

FOLLOW WATER INLET PIPE TO ON TOP ENGINE CYLINDER HEAD.THERMOSTAT IS IN THE LARGE HOUSING WHERE HEATER HOSES CONNECT.THERMOSTAT IS INSIDE OF HOUSING AT THE END OF WATER INLET PIPE THAT GOES TO THE CYLINDER HEAD.

Don't have a diagram but, the hose from the thermostat housing goes to the top inlet on the heater control valve. Hose from water pump goes to lower port on control valve on same side.
port on center of valve goes to firewall lower connection. same side, lower port goes to upper firewall connection.
Make sure you re-attach the vacuum line to the valve.
To re-fill system, turn the heater control to high, run the engine and add coolant. Watch the temp gauge. When temp gets close to normal operating temp (about 205 degrees (f)) shut engine off and wait about four minutes. Re- start, continue adding slowly.
When the level suddenly drops that means the thermostat has opened. Continue running for about five minutes to permit air to escape. Top off radiator and close cap. Fill overflow reservoir to proper level and check everything over for leaks.
Watch the temp gauge while driving to make sure all is good and make sure to re-check fluid level after engine cools down.
A small amount over-full is fine. Make sure that the system has a 50/50 antifreeze mix. Less or more changes boiling point and freeze point usually in the wrong direction.

Crankshaft Position Sensor Replacement - Removal Procedure

1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
3. Remove the starter motor. Refer to Starter Motor Replacement in Engine Electrical.
4. Disconnect the crankshaft position (CKP) sensor electrical connector.
5. Remove the CKP sensor bolt (1).
6. Remove the CKP sensor (2) from the engine block:
• Remove the sensor by pulling on the sensor connector. DO NOT pry on the bracket.
• DO NOT rotate or twist the sensor or damage the mounting bracket if the sensor is being reused.

Installation Procedure

Important: When replacing the CKP sensor with a new sensor or reinstalling the original sensor, use the following recommended procedures:
• Ensure that the CKP sensor bore is completely free of any foreign material, such as old O-ring, dirt, burrs, etc.
• Ensure that the flange on the CKP sensor bore is not damaged.
• Clean all the mounting surfaces before re-installing any components.
• Inspect the CKP sensor and replace the sensor if any of the following conditions are present:
- The bracket is damaged.
- The bottom of the brass housing exhibits any damage.
- Never install a sensor that has been dropped.
• Lubricate the O-ring on the sensor with clean engine oil prior to installing the sensor .
• Inspect all the connectors for any damaged terminals.

1. Install and fully seat the CKP sensor (2) into the engine block.
Notice: 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.
2. Install the CKP sensor bolt (1).
Tighten
Tighten the bolt to 9 N·m (80 lb in)
3. Ensure that the CKP sensor mounting flange is contacting the engine block.
4. Connect the CKP sensor electrical connector.
5. Install the starter motor. Refer to Starter Motor Replacement in Engine Electrical.
6. Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
7. Lower the vehicle.
8. The CKP System Variation Learn Procedure must be performed after replacing the CKP sensor. Even if the original sensor is reinstalled, the Learn Procedure must be performed.
9. Engine Coolant Temperature Sensor Replacement
Removal Procedure
Notice: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.
1. Partially drain the cooling system. Refer to Draining and Filling Cooling System in Engine Cooling.
2. Remove the exhaust gas recirculation (EGR) inlet pipe. Refer to Exhaust Gas Recirculation (EGR) Inlet Pipe Replacement .
3. Disconnect the ECT sensor (1) .
4. Remove the ECT sensor.

Installation Procedure
Notice: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.
Notice: Replacement components must be the correct part number for the application. Components requiring the use of the thread locking compound, lubricants, corrosion inhibitors, or sealants are identified in the service procedure. Some replacement components may come with these coatings already applied. Do not use these coatings on components unless specified. These coatings can affect the final torque, which may affect the operation of the component. Use the correct torque specification when installing components in order to avoid damage.

1. Coat the sensor threads with sealer GM P/N 12346004, (Canadian P/N 10953480) or equivalent.
Notice: 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.
2. Install the ECT sensor (1).
Tighten
Tighten the sensor to 20 N·m (15 lb ft).
3. Connect the ECT sensor electrical connector.
4. Install the EGR inlet pipe. Refer to Exhaust Gas Recirculation (EGR) Inlet Pipe Replacement .
5. Fill the cooling system. Refer to Draining and Filling Cooling System in Engine Cooling.
6. Engine Coolant Thermostat Replacement
Tools Required
J 38185 Hose Clamp Pliers

Removal Procedure
1. Partially drain the cooling system. Refer to Cooling

System Draining and Filling .
2. Use the J 38185 to remove the radiator hose clamp from the water inlet housing.
3. Remove the radiator hose from the water inlet housing.
4. Use the J 38185 to remove the heater hose clamp from the water inlet housing.
5. Remove the heater hose from the water inlet housing.
6. Use the J 38185 to remove the surge tank inlet hose clamp from the water inlet housing.
7. Remove the surge tank inlet hose from the water inlet housing.
8. Remove the water inlet housing bolts.
Important: The water inlet housing (2) and the thermostat are replaced as an assembly.
9. Remove the water inlet housing and the thermostat.
10. Inspect and clean the water inlet mating surfaces.

Installation Procedure

1. Install the thermostat and the water inlet housing (2).
Notice: 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.
2. Install the water inlet housing bolts.
Tighten
Tighten the bolts to 9 N·m (80 lb in).
3. Install the surge tank inlet hose to the water inlet housing.
4. Use theJ 38185 to install the surge tank hose clamp to the water inlet housing.
5. Install the heater hose to the water inlet housing.
6. Use theJ 38185 to install the heater hose clamp to the water inlet housing.
7. Install the radiator hose to the water inlet housing.
8. Use theJ 38185 to install the radiator hose clamp to the water inlet housing.
9. Fill the cooling system. Refer to Cooling System Draining and Filling

Time Estimated: 4.5 hours.

Hope helps.

You're going to lose some coolant, so have a bucket or other container ready. Follow the upper radiator hose to the point where it's connected to the engine. The hose is clamped to a metal housing which is bolted to the engine. Remove the bolts (not the hose) and lift the housing to expose the thermostat (may require a little prying with a screwdriver or similar tool). Note how the old thermostat is fitted (which end is up), lift it out of the engine, and then remove all traces of gasket from the housing and the engine. Install the new thermostat and gasket, replace the bolts, add coolant as necessary, and you're done.

Hi, here is a step by step guide that will help you with this replacement of the thermostat. Please make sure you have exhausted all other trouble zones before initiating this replacement. Check to make sure the water pump is working properly and also, make sure that your cooling fan is cycling on and off in the correct manner and, most important, make sure the cooling fan is operational and the relay and fuse are good as well. If all is well, proceed with the replacement of the thermostat as described below.

Remove the old thermostat-

Step1 Drain about half the engine coolant into a sealable container. Disconnect the negative battery cable. Step2 Take the hose clamps from the water inlet housing with a pair of hose clamp pliers. Remove both the radiator hose and the heater hose from the water inlet housing. Step3 Disconnect the clamp on the surge tank inlet hose. Take the hose from the water inlet housing. Step4 Loosen the bolts that secure the water inlet housing then remove them. Lift out the water inlet/thermostat assembly. Install the new Thermostat Step1 Clean the sealing surfaces to remove all traces of gasket material and dirt. Position the new inlet-thermostat assembly on the engine. Step2 Apply RTV Sealer GM#1052366 or a similar product to the bolts before installing them. Tighten the bolts to 80 inch lbs. Step3 Connect the hoses to the surge tank, the heater and the radiator to the inlet housing. Fill the cooling system with the proper type and mix of coolant. Step4 Reattach the negative battery cable. Start the engine and allow it to run until the thermostat opens. Step5 Allow the engine to cool. Test the coolant level and add coolant as needed.