Question about 2002 Oldsmobile Silhouette

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How to remove heater hose quick disconnects on GM 3400 in 2002 oldsmobile silhoette

Heater hose snapped off just above quick disconnect. how/what's needed to get the disconnect off of the tube its on?

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  • Oldsmobile Master
  • 681 Answers

Fuel line A/C removal tool

Posted on Aug 11, 2014

  • williamsa43 Aug 12, 2014

    AutoZone type parts store loan the QUICK DISCONNECT tool free

  • williamsa43 Aug 12, 2014

    call AuoZone for the QUICK DISCONNECT tool FREE .push it in place release the internal "fingers" pull hose apart.



6 Suggested Answers


6ya staff

  • 2 Answers


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Posted on Jan 02, 2017


Ronald Mueller

  • 1263 Answers

SOURCE: Looking for the wire to disconnect auto leveler or 88 oldsmobile

it will be in the trunk under the area were your speakers in the back seat are you should be able to pull it down and there will be a body control module there don't unplug the big harness but there should be leads for each of your lever servos.

Posted on Sep 01, 2008


  • 258 Answers

SOURCE: My parents own a 2002 Oldsmobile Bravada. The heat

if its intermitent and the heat gauge is not at opperating temp than replace the thermostat and be sure to purge the system of all air bubbles

Posted on Jan 07, 2010


  • 7 Answers

SOURCE: can i disconnect the smart track system on this

the smarttrak runs off of a atc fuse under the hood which engages the transfer case yes it is possible

Posted on May 24, 2010

Fahr Quad

  • 752 Answers

SOURCE: Someone disconnected the heater hoses in my

They were probably disconnected because the heater core was leaking. There should be a 1/2 to 5/8 inch hose coming off the water pump housing and looping back to the intake manifold or block (depending on engine).

Posted on Jun 27, 2010


  • 3911 Answers

SOURCE: I need to replace a

buy a repair manual or do a search on for instructions on removing the dashboard, or enough of it to get at the heater box. you are lucky in that it does not have passenger side airbag.
when you are in there, do yourself a real favor do both hoses and the heater core. it is 20 and it is not unusual for them to plug up or leak at 10 so you are on borrowed time. when you have reached that point you will know that you never want to do this again.

Posted on May 23, 2011

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1 Answer

1998 Oldsmobile Aurora heater core removal

Tools Required:
J 37097-A Hose Clamp Pliers

Remove or Disconnect

1. Drain cooling system.
2. Heater hoses from heater core.
3. Console assembly.
4. Trim sound insulator as necessary to allow removal of heater core cover.
5. Heater core cover from HVAC module.
6. Retaining straps from heater core.
7. Heater core.

Install or Connect

1. Heater core into HVAC module with attaching straps and screws.
2. Heater core cover and attaching screws.
3. Console assembly.
4. Heater hoses to heater core.
5. Fill cooling system.

Mar 01, 2017 | Oldsmobile Cars & Trucks

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How do I get the brake booster out of my 1999 oldsmobile silhoette?

Hi Carol,here's a Autozone repair guide on replacing your brake booster. Repair Guides Brake Operating System Power Brake Booster AutoZone com Here's a link to a new one. Brake Power Booster Hydraulic Brake Fluid DOT 3.OE Part Number/Spec: GM P/N 12377967 Spec 9986121.

Sep 07, 2016 | 1999 Oldsmobile Silhouette

1 Answer

Step by step instruction to replace heater core 1998 oldsmobile 88

1. First you have to disconnect the Oldsmobile vehicle battery, then you have to drain the engine coolant into a clean container, most models don't have a drain plug on the bottom of the radiator, so you must take off the lower radiator hose to drain the system.

2. Second you have to remove the drain tube from the heater's housing and disconnect the heater hoses from the core, to reach out the heat core you have to take off the sound insulators on both sides of the car, then the steering column's opening filler and finally the air outlet duct and the floor air outlet.

3. Third you have to disconnect the heater core cover and then remove the core-to-housing mounting clamps and remove the heater core.

4. Fourth you have to Install the new heater core and connect the mountain clamps. I did a quick online search and if you need new Heater Core this site looks like it has cheap prices, free shipping and great reviews

5. Fifth Replace all the core cover,rear floor air outlet, air outlet duct, steering column opening filler, sound insulators and center console (if equipped). Reattach the heater hoses to the core and the drain tube to the housing and fill the cooling system, using new coolant if the old liquid doesn't appear clean. Be sure the lower radiator hose is securely back in place before filling the radiator. Reconnect the negative battery cable.

Oct 07, 2013 | 1999 Oldsmobile Bravada

1 Answer

Heater core replacement

Hello Fred.
Not a real easy job to do but if you want to tackle it, good for you.
Here is the manual instruction.
  1. Disconnect battery ground cable.
  2. Drain cooling system.
  3. Remove right sound insulator.
  4. Remove center and lower instrument panel trim plates.
  5. On models with automatic climate control, remove speaker grille and speaker for access to programmer attaching bolt.
  6. Disconnect wiring and hoses from programmer.
  7. Remove programmer linkage cover and disconnect linkage.
  8. Remove programmer attaching bolt and the programmer.
  9. On all models, remove heater core cover, then the splash cover for access to heater hoses.
  10. Disconnect heater hoses from heater core.
  11. Remove heater core cover, then the heater core.
  12. Reverse procedure to install.

There you are, I hope your repair goes well.
Let me know here if you need a little more help with this.

Thank you for using FixYa.


Dec 17, 2010 | 1989 Oldsmobile Ninety Eight

1 Answer

Where is the heater core in a gmc van

Welcome to

Location See figureleedavidian_32.png

1. Disconnect the battery cable.

2. Remove coolant recovery tank and lay aside.

3. Place a clean pan under the vehicle and then disconnect the heater core inlet and

outlet hoses at the heater connections. Quickly plug the heater hoses and support

them in a raised position. Allow the coolant in the heater core to drain into the pan

on the floor.

4. Remove heater distributor duct to distributor case attaching screws and distributor

duct to engine cover screw and remove duct.

5. Remove engine housing cover.

6. Remove instrument panel attaching screws: above, at windshield, all lower screws

and tight lower LP. Support bracket at door pillar and engine housing.

7. Lower steering column, and raise and support tight side of LP.

8. Remove defroster duct to distributor case attaching distributor to heater case.

9. Disconnect temperature door cable and fold cable back for access.

10. Remove three (3) nuts at engine compartment side of distributor case and one (1)

screw on passenger side.

11. Remove the heater case and core as an assembly. Tilt the case assembly rearward at

the top while lifting up until the core tubes clear the dash openings.

12. Remove the core retaining strap screws and remove the core.

13. To install a new core. Reverse Steps l-10 above. Be sure core to case and case to

dash panel sealer is intact before assembling unit.

Thank you for using

Regards, Lee Davidian

Nov 06, 2010 | 1984 GMC VanDura

1 Answer

Instuctions for removing heater core

  • Disconnect the negative cable from the Oldsmobile Alero's battery. While the car is securely raised on jack stands, drain the engine coolant into a clean container. Most models don't have a drain plug on the bottom of the radiator, so you must take off the lower radiator hose to drain the system.
  • Step 2 Remove the drain tube from the heater's housing and disconnect the heater hoses from the core. Take off the center console, if one is equipped. Then, take off the sound insulators on both sides of the car, the steering column's opening filler, the air outlet duct and the floor air outlet to reach the heater core.
  • Step 3 Disconnect the heater core cover. Remove the core-to-housing mounting clamps and remove the heater core.
  • Step 4 Install the replacement heater core. Connect the mounting clamps and replace the core cover.
  • Step 5 Replace the rear floor air outlet, air outlet duct, steering column opening filler, sound insulators and center console (if equipped). Reattach the heater hoses to the core and the drain tube to the housing.
  • Step 6 Fill the cooling system, using new coolant if the old liquid doesn't appear clean. Be sure the lower radiator hose is securely back in place before filling the radiator. Reconnect the negative battery cable.
  • Step 7 Start up the Oldsmobile Alero's engine and let it run until it reaches normal operating temperature. Observe the climate control operation and check for any leaks in the system.

  • Read more: How to Replace the Heater Core in an Oldsmobile Alero |

    Jul 22, 2010 | 2000 Oldsmobile Alero

    1 Answer

    I need instructions on how to remove a heater core from my 1967 Cutlass Supreme with A/C. After looking under the dash, the heater and A/C control cables are attached to what must be the enclosure box....

    Hello! Disconnect the negative battery terminal...Drain the radiator and disconnect the heater inlet and outlet hoses at the dash...Remove the blower inlet to firewall screws...Remove the blower inlet, motor and wheel as an assembly...Disconnect the control wires from the defroster door...
    Disconnect the vacuum hose diverter door actuator diaphragm...Disconnect the control cable from the temperature door lever...Remove the four nuts securing the heater assembly to the dash...Remove the screw securing the defroster outlet tab to the heater assembly...Remove the heater from the car...

    To install...Make sure the heater assembly seal is in good condition...Position the assembly onto the dash and tighten the retaining screws...Reconnect the heater hoses, electrical connectors and negative battery cable; Refill the engine with coolant, start the vehicle and check for leaks...


    I’m happy to help further over the phone at

    Jul 01, 2010 | Oldsmobile Cutlass Supreme Cars & Trucks

    1 Answer

    Cannot remove the quick disconnect for my heater hose on my 2002 Chevy Silverado 5.3 I am in the process of changing my heater hose and can't remove the quick disconnect to replace it how do I?

    You will have to have a special tool made by Kent Moore to remove the connectors. The number of the tool is J-43181. If you do a GOOGLE search, you will see the tool you need. Regards.

    Sep 01, 2009 | 2002 Chevrolet Silverado

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    Change thermostat on gm 3400 v6

    Drain coolant at the radiator drain. Remove air intake hose and MAF sensor assembly. remove throttle cable bracket and disconnect cable linkage. Remove throttle body bolts and disconnect coolant hoses to throttle body. Loosen heater hose pipe and remove heater hose from rear of pipe. Remove radiator hose from thermostat housing. Remove top thermostat housing bolt. Loosen and almost remove lower thermostat bolt. You will need to slide your wrench and hand under the exhaust crossover pipe to gain access. Loosen the bolt until you can remove the thermostat housing, it should be slotted to clear the bolt. Replace the thermostat and reassemble. Bleed cooling system using the two bleed screws (one on thermostat housing and the other on the passenger side of the engine where the heater hose pipe comes out above the water pump.

    Jan 23, 2009 | 2003 Pontiac Montana

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    Heater core

    You have to pull the dash and all the lower fascia, then remove the box that houses the Heater Core Take the clamps off the heater hoses from the engine compartment side of the firewall and disconnect the heater hoses. Disconnect the bracket that holds the heater core in place from the inside of the passenger compartment (if present.) Carefully remove the heater core and discard it. Install a new heater core reversing the above steps.

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