Question about 2000 GMC Jimmy

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2000 Jimmy Heater

My heater will only shift between defrost and dashboard outlets. It will not go to the floor outlet.

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  • Anonymous Feb 21, 2009

    When selecting floor vent . It shifts from face vent to defrost and face vent, by passing floor. Also, in temperature 20 degrees or lower the shifter sticks open blows cold air .When it gets warmer it will shift to heat face vents. Floor vents never work Can you help me?

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The shift lever where you adjust where the heat needs to go may be the problem. It's mechanical, and if it functions except defrost, then it sounds more like a mechanical problem w/ the heat adjustment. Unless you aren't getting heat at all.

Posted on Nov 19, 2008

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How do Iclean and flush the coolant line


Remove the outlet and inlet hoses from the heater core and hook up a hose to back flush the core through the outlet tube. The return outlet tube is usually the smaller hose.

Feb 27, 2016 | 1995 Lincoln Town Car

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HOW TO CHANGE HEATER CORE IN 2000 BUICK CENTURU


Instructions
  1. Removing the Heater Core
    • Lift the hood and prop it open. Makes sure the engine is cold. Disconnect the negative battery cable with a socket wrench or box wrench. Avoid using open-end wrenches on the battery terminals, as they tend to strip the bolt heads.
    • 2Place a drain pan under the radiator. Open the radiator cap. Open the radiator drain on the bottom of the radiator and the two coolant drains near the oil pan. You can reuse the coolant unless it appears cloudy and contaminated. Close all three drain openings once all the coolant has drained from the system.
    • 3
    • Disconnect the inlet and outlet hoses of the heater core inside the engine compartment using a socket wrench. Be prepared to catch or wipe up any coolant that drips from these hoses. Drain the coolant from inside the heater core.
    • 4Unscrew and remove the lower instrument panel sound insulator from below the dashboard on the passenger side. Use a socket or screwdriver to loosen and remove the screws on the heater flooricon1.png outlet. Remove the clips and take out the duct.
    • 5Loosen and remove the screws holding the heater core cover in place. Remove the cover.
    • 6Remove the retaining bolts holding the heater core in place. Remove the heater core.
    Installing the Heater Core
    • 7Position the replacement heater core and secure the retaining bolts. Put the cover back on the heater core and reattach the screws and clips.
    • 8Reinstall the floor outlet duct with its screws and clips, followed by the lower instrument panel sound insulator.
    • 9Reconnect the inlet and outlet hoses to the heater core In the engine compartment.
    Refilling the Cooling System
    • 10Tighten all of the drains. Fill the radiator up to the base of the radiator neck with antifreeze, reusing the old coolant if it's cleanicon1.png. Fill the coolant overflow tank up to the "FILL" mark.
    • 11Reconnect the negative cable on the battery and start the engine, making sure you leave the radiator cap off. With the engine idling, look into the radiator and notice that the coolant level has dropped. Add coolant until the level is back up to the base of the radiator neck. Add coolant to the "FILL" mark on the overflow tank. Put the radiator cap on, making sure the arrow on it points to the overflow tank.
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No heat 2000 gmc jimmy new rad new tstat


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Sep 11, 2012 | 2000 GMC Jimmy

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Where is the heater core located


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LEGEND
1 Clip
2 Dust and Pollen Filter
3 Air intake housing
4 Defroster air outlet
5 Side window air outlet
6 Heating and A/C controls
7 Air outlets
8 Instrument panel cross member
9 Defroster duct
10 Servo motor for fresh/recirculating air door -V154-
11 Ambient temperature switch -F38-
12 Gasket
13 Evaporator water drain guide
14 Heating and A/C unit
- Heater core
- Evaporator
15 Fresh air blower -V2-
16 Fresh air blower series resistance with fuse -N24-
17 Center air outlet
18 Control panel trim
19 Center trim
20 Heating and A/C cables
21 Heater core
22 Left rear duct
23 Lower duct
24 Upper duct
25 Footwell air outlet
26 Instrument panel cross member, left side member securing bolt
27 Relay
28 A/C cut-off control module -J314-
29 Instrument panel
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Removing heater core


This is for a 2.3L
Hope this helps, it it does please leave feedback Thank You and Good Luck

REMOVAL
  1. Disconnect battery ground cable.
  2. Drain cooling system.
  3. Raise and support vehicle.
  4. Disconnect heater hoses from heater core assembly.
  5. Remove drain tube.
  6. Lower vehicle.
  7. If equipped, remove console as follows:
    1. Apply parking brake and block drive wheels.
    2. Position transaxle shift lever in Neutral.
    3. On models with automatic transaxle, remove clip retaining shift lever handle to lever, then remove shift lever handle.
    4. On models with manual transaxle, turn shift lever handle counterclockwise to remove from lever.
    5. On all models, carefully pry upward on outer edges of console trim plate.
    6. Disconnect electrical connectors and ashtray lamp from console trim plate, then remove trim plate from console.
    7. Remove console to mounting bracket attaching screws, then remove console.
  1. Right and left sound insulators.
  2. Steering column opening filler.
Floor Air Duct Outlet 58917672

  1. Floor air outlet duct.
  2. Heater core cover.
  3. Heater core mounting clamps and remove heater core.
INSTALLATION
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  2. Heater core cover.
  3. Floor air outlet duct.
  4. Right and left sound insulators.
  5. Console.
  6. Steering column opening filler.
  7. Raise vehicle.
  8. Heater hoses to heater core.
  9. Drain tube to heater case.
  10. Lower vehicle.
  11. Negative battery cable.
  12. Fill cooling system and check for leaks.

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1 Answer

Whats involved in changing a heater core in my 2002 monte ?


Hello! Remove the fuel injection appearance cover (if it has one)

Drain cooling system

Disconnect heater hoses

Rmv. right/left instrument panel closeouts

Rmv. the carpet

Rmv. rear floor air outlet duct from floor re-enforcement

Rmv. the rear floor air outlet duct

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Rmv. the outlet cover from the HVAC assembly

Rmv. heater core cover screws and heat stakes using a small chisel

Rmv. heater core cover from HVAC assembly

Rmv. heater core from HVAC assembly

Guru...saailer....Installation to follow




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1 Answer

REPLACING HEATER CORE


HEATER CORE REPLACEMENT REMOVAL PROCEDURE 1. Remove the fuel injector sight shield. 2. Drain the cooling system. Refer to Draining and Filling Cooling System in Cooling System. 3. Use J 38185 in order to position aside the heater hose inlet and outlet clamps at the heater core. 4. Disconnect the inlet and outlet heater hose from the heater core. 5. Remove the RH Instrument Panel Closeout/Insulator panel. 6. Remove the LH Instrument Panel Closeout/Insulator panel 7. Remove the floor carpet. 8. Remove the rear floor air outlet duct from the holes in the floor reinforcement. 9. Disconnect the rear floor air outlet duct from the heater air outlet cover. 10. Remove the rear floor air outlet duct. 11. Remove the heater air outlet cover screws . 12. Remove the heater air outlet cover heat stakes with a small chisel. 13. Remove the heater air outlet cover from the HVAC module assembly. 14. Remove the heater core cover screws . 15. Remove the heater core cover heat stakes with a small chisel. 16. Remove the heater core cover from the HVAC module assembly. 17. Remove the heater core from the HVAC module assembly. 18. Remove the heater core foam seal (1) from the HVAC module assembly.
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1 Answer

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1 Answer

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B: Fuse is blown on that part of wiring. May or may not be listed under A/C; could also be under heater.

C: I believe 96 models still had some inline fuses in the wires. Wouldn't hurt to check.

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2 Answers

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