Question about 1999 Chevrolet S-10 Pickup

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1999 S10 HEATER CORE

I HAVE MY DASH OUT AND HAVE THE SCREWS OUT OF THE HOUSING BUT STILL CANT REMOVE THE HOUSING THE HEATER CORE IS IN,,HEEELLLLPPP!!!

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Did you take all screws out of the housin on the out side double check they are hard to see

Posted on Feb 12, 2009

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Heater core replacement 98 chevy S10 2.2L engine


Tyrone, Check the attached links,instruction and guides, the last link has some very good info. and pics. on S10 heater core replacement. Good luck.
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
Heater core replacement 2000 S10 4 3L slideshow picture
How to Change Heater Core on 1994 Chevy 10 Blazer GMC Jimmy Oldsmobile...
98 GMC Jimmy Heater Core Replacement Video Diary
Heater core replacement procedure 99 S10


Jun 16, 2016 | Cars & Trucks

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Im replacing the heater core in 2001 jeep cherokee...i have the dash off down to fire wall...all screws are out of bottom heater box but I cant remove the bottom of box to get to heater core...what am I...


If it is necessary to remove the heater assembly, the cooling system must be drained before removing the heater core.
When a heater core leaks, a new heater core is installed or the old one repaired.
Heater Housing
  • The heater housing is usually under the dash and must be removed to gain access to the heater core.
  • Procedures for replacing the heater core vary with the year, make, and model of car. It threfore necessary to consult the manufacturer's repair manuals for the proper procedure for replacement.
f74-01.gif The heater housing is disassembled to get to the heater core. Heater Core
  • Remove the access panels(s) or the split heater/air conditioning case to gain acess to the heater core.
  • Remove the heater coolant hoses.
  • Remove the cable and/or vacuum control lines (if equipped).
  • Remove the heater core securing brackets and/or clamps.
  • Lift the core from the case. Do not use force. Take care not to damage the fins of the heater core when removing.
  • To reinstall the heater core, reverse the removal steps.
When the heater core leaks and must be repaired or replaced, it is a very difficult and time-consuming job primarily because of the core's location deep within the firewall of the car. For this reason always leak test a replacement heater core before installation.

Dec 19, 2010 | 2001 Jeep Grand Cherokee

1 Answer

Is the heater core on a 1981 bronco in the engine compartment or the cab compartment


in the cab, but procedures are different depending on whether or not you have A/C. See below

1980-81 Comfort Vent Heaters, Without Air Conditioning
  1. Disconnect the heater hoses from the heater core tubes and plug the hoses with suitable 5 / 8 inch; (16mm) plugs.
  2. Remove the glove compartment liner.
  3. Remove two (2) spring clips attaching the heater core cover to the plenum along the top edge of the heater core cover.
  4. Remove eight (8) screws attaching the heater core cover to the plenum and remove the cover.
  5. Remove the heater core from the plenum taking care not to spill coolant from the core.
To install:
  1. Install the heater core in the plenum.
  2. Install the heater core cover (eight (8) screws and two (2) spring clips along the top edge of the cover).
  3. Install the glove compartment liner.
  4. Connect the heater hoses to the heater core. Tighten the hose clamps.
  5. Add coolant to raise the coolant level to specification.
  6. Check the system for proper operation and for coolant leaks.

1980-81 Standard & High Output Heaters, Without Air Conditioning
  1. Disconnect the temperature cable from the temperature blend door and the mounting bracket on top of the heater case.
  2. Disconnect the wires from the blower motor resistor and the blower motor.
  3. Disconnect the heater hoses from the heater core and plug the hoses with suitable 5 / 8 inch; (16mm) plugs.
  4. Working under the instrument panel, remove two (2) nuts retaining the left end of the heater case and the right end of the plenum to the dash panel.
  5. In the engine compartment, remove one (1) screw attaching the top center of the heater case to the dash panel.
  6. Remove two (2) screws attaching the right end of the heater case to the dash panel, and remove the heater case from the vehicle.
  7. Remove nine (9) screws and one (1) bolt and nut attaching the heater housing plate to the heater case, and remove the heater housing plate.
  8. Remove three (3) screws attaching the heater core frame to the heater case and remove the frame.
  9. Remove the heater core and seal from the heater case.

To install:
  1. Position the heater core and seal in the heater case.
  2. Install the heater core frame (3 screws).
  3. Position the heater housing plate on the heater case and install the nine (9) screws and one (1) bolt and nut.
  4. Position the heater case to the dash panel and install the three (3) attaching screws.
  5. Working in the passenger compartment, install two (2) nuts to retain the heater case and plenum right end to the dash panel.
  6. Connect the heater hoses to the heater core. Tighten the hose clamps.
  7. Connect the wires to the blower motor resistor assembly.
  8. Connect the blower motor wires.
  9. Position (slide) the self-adjusting clip on the temperature cable to a position approximately one 1 inch; (25.4mm) from the cable end loop.
  10. Snap the temperature cable on the cable mounting bracket of the heater case. Then, position the self-adjusting clip on the door crank arm.
  11. Adjust the temperature cable.
  12. Check the system for proper operation.

Oct 05, 2010 | 1981 Ford Bronco

1 Answer

Trying to replace heater core 1994 s10 4 cyl


GM S-Series Pick-ups and SUV's 1994-1999 Repair Guide



Heater Core - REMOVAL & INSTALLATION
1994-97 Vehicles
(see Figure 1)

44d2ba8.jpg

Fig. 1: Exploded view of a common heater core and case assembly
  1. Disconnect the negative battery cable and properly drain the engine cooling system to a level below the heater core.
  2. Disconnect the heater hoses from the core tubes near the cowl.
The instrument panel carrier is designed not only to provide access to parts through removal of the carrier components, but the carrier will also tilt downward as a complete assembly to allow access from the top. If this is desired, remove the retainer screws along the top and bottom of the carrier assembly (refer to the figure). The instrument panel will then tilt as an assembly into the cab. It is necessary to unbolt and lower the steering column from the carrier to allow for maximum movement of the instrument panel.
  1. The instrument panel must be removed or repositioned for access to the heater core case. Unbolt and either tilt the instrument panel forward or disengage the instrument panel components and remove the panel from the vehicle. In most cases, tilting the panel forward should be sufficient for the necessary access.
  2. Unfasten the heater core rear case retaining screws, then remove the rear case for access to the heater core.
  3. Loosen the retainers and remove the heater core retaining straps.
  4. Remove the heater core and seals.
To install:
  1. Install the heater core and seals, taking care not to damage the core tubes when inserting them through the cowl.
  2. Install and secure the core retaining straps.
  3. Install the rear case and secure using the screws.
  4. Reposition and secure the instrument panel and components. Tighten the cowl screws to 17 inch lbs. (1.9 Nm) and the lower instrument panel screws to 66 inch lbs. (7.5 Nm).
  5. Connect the heater hoses to the core tubes.
  6. Connect the negative battery cable, then properly refill the engine cooling system.
  7. Run the engine at normal operating temperature, then check for leaks.

Good luck (remember rated this post).

May 19, 2010 | 1994 Chevrolet S-10

2 Answers

How do you install a heater core in a 1999 jeep grand cherokee?


I suggest review the ZJSecc24-Heating-and-Air-Conditioning

First you'll need remove the heater A/C unit from the vehicle; after, remove the heater core retaining screws, and finally, pull the heatrer core straight out of the housing.

Hop helped with this (remember rated this help) Good luck.

Nov 30, 2009 | 1999 Jeep Grand Cherokee

1 Answer

How to replace heater core in a 1988 jeep cherokee?


Jeep Cherokee XJ Heater Core

Work for '92 models, but can use it like a reference guide.

6042054.gif

Figure 1

  1. Disconnect battery ground cable, then drain cooling system.
  2. Disconnect hoses from heater core.
  3. If equipped with A/C, remove evaporator/blower housing as follows:
    1. Discharge A/C system, then disconnect hoses from expansion valve.
    2. Disconnect electrical connector and vent tube from blower motor.
    3. Remove console, if equipped.
    4. Remove lower instrument panel attaching screws, then the lower panel.
    5. Disconnect electrical connections from A/C relay, blower motor resistors and A/C thermostat.
    6. Disconnect vacuum hose from vacuum motor.
    7. Cut evaporator/blower housing to heater core housing retaining strap, then disconnect heater control cable.
    8. Pry retaining clip from rear of blower housing flange, then remove the three retaining screws.
    9. Working from engine compartment, remove evaporator/blower housing attaching nuts, then the evaporator drain tube, Figure 1.
    10. Remove right kick panel, then the instrument panel support bolt.
    11. Pull right side of dash outward, then rotate housing downward and towards rear of vehicle until studs clear dash panel. Remove housing from vehicle.
  4. Remove heater core to housing retaining screws, then the heater core, Figure 2.
  5. Reverse procedure to install.
ad4c27d.gif

Figure 2

Personally, I'd pressure test the cooling system then look at the heater core to see if it leaks. It may just be a loose clamp or leaky hose.

Also can check the forum jpmagazine.com

I hope help you; good luck (remember rated this).

Sep 15, 2009 | Jeep Cherokee Cars & Trucks

1 Answer

Remove heater core


on 1992 s10 remove the heater outlets and duck from under instrument panel. Remove air distribution model assembly,heater and seal. Disconnect neg batt cable. Drain eng coolant. Remove hoses at core. Remove rear case screws. Remove heater core from case.

Jun 06, 2009 | 1999 Chevrolet S-10 Pickup

2 Answers

1999 Chevy S10


Just pull the dash back a little by undoing all the bolts and screws, its going to be a tight fit find someone with small hands.

Oct 21, 2008 | 1999 Chevrolet S-10 Pickup

2 Answers

1993 taurus heater core replacement guide


This is a big job which involves discharging and removing parts of the A/C system as well as removing parts of the dash. I had the core done on a 94 Sable years ago and it was a very labor intensive and expensive job. Here are some instructions I found for a 94 Taurus which should be the same thing or similiar, but I don't guarantee that. Please note that these instructions were not tested by me and may contain errors or be incomplete in some way. For example "remove instrument panel" sounds simple but in reality is a process in itself requiring the removal of many screws. Naturally you would have to recharge the A/C and refill the coolant when done.
__________________________________________
Removal

1. Remove instrument panel and lay it on front seat.
2. Remove A/C evaporator housing as outlined.
3. Remove vacuum source line from heater dash panel seal (18529).
4. Remove heater dash panel seal from heater core tubes (refer to Heater Case Assembly).
5. Remove four heater core access cover retaining screws and remove heater core cover (18B300) from A/C evaporator housing.
6. Lift heater core and seals from A/C evaporator housing.
________________________________________________
Installation

1. Transfer three foam core seals to new heater core.
2. Install heater core and seals into A/C evaporator housing.
3. Position heater core cover on A/C evaporator housing. Install four retaining screws.
4. Install heater dash panel seal on heater core tubes.
5. Install vacuum source line through heater dash panel seal.
6. Install A/C evaporator housing into vehicle as outlined.
7. Reinstall dashboard components.

Best of Luck!

SC442299




Aug 19, 2008 | Ford Taurus Cars & Trucks

2 Answers

How to remove heater core in a 98 blazer


You have to remove the dash in layers. There's a whole bunch of screws to take out. The heater core is located in the middle of the dash near windshield when you get that far. There are a couple of brackets that hold the heater core in place, remove the heater hoses and pull out heater core. It's quite a long process so give yourself plenty of time.

Jul 15, 2008 | Chevrolet Blazer Cars & Trucks

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