Question about 2002 Jeep Grand Cherokee

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Heater core replacement , pulled the dash off, dropped the stearing colum,pulled all the screws out and still can get the plastic plate cover offdash so i can reach the heater core, its a 2002 jeep grand cherokee they want a grand to fix it that i dont have thanks so much

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Go to youtube and type in

This will help you see how too take apart the dashboard

Posted on Sep 20, 2009

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Connection location for Park Avenue multipurpose switch

You will find it behind the stearing colum. You can get to it by taking out 2 screws to the stearing colum. They will be right there when you get the cover off.

Nov 25, 2012 | 1999 Buick Park Avenue

1 Answer

Can the heater core on a 1985 ltd crown victoria be taken out on the engine side of the firewall? Do you have a set of step by step instructions to complete this task I am very mechanicly inclined

No Sir it can not. The heater core on those vehicles must come out into the passenger compartment and book time is 12 to 14 hours. I can tell you a professional system I always use that has some good shortcuts in it. The book calls for removing the steering column and dash. My short cuts avoid that. You can leave the column and dash partially hanging and still complete the job. I will be telling you this process from memory. First with the engine cold drain the coolant from the heater core by removing only the 2 hoses to the heater core under the hood. Now flush water thru the core with a garden hose. ( This is so you do not spill coolant inside the car) There is a stud with a nut (maybe 2 studs w/nut)on it between these hoses remove this nut as it holds the top of the heater box to the firewall. Now go inside the car and remove the two lower kick panels made of plastic by the drivers and passengers outer foot. Behind the drivers panel there is a large nut holding the dash to the window post where the hinges are attached to. Loosen this nut almost all the way off. On the other side remove the large nut completely and the small nut also. Pry the plastic cover up that covers the dash right under the windshield and there are several screws to remove there. This loosens the dash on the left side and allows you to pull the right side out enough to spin the heater box out and to the floor. Now remove the plastic covering under the steering column and the metal plate behind it. This part is important > Be sure to loosen the adjuster on the transmission indicator cable and remove the cable from the steering column before going further. This is the small black cable that moves the dash indicatro from park to drive...ect. if you do not remove this cable prior to dropping the column you will break the plastic that holds the cable to the instrument cluster. Now remove the 2 bolts holding the upper part of the column to the dash. Now there is a floor vent in the center made of plastic that must come out. There is a screw on the left side and a plastic pin button you pull out. Pull out the ashtray and there is a small screw behind it holding this vent also. You will have to pull the vent to the laft and out. I make a small **** in the plastic vent this attaches to under the carpet to send air to the rear floor so I can pull it out and replace it easier. Ok, now remove the 2 lower bolts on the steering column and let it rest on the seat. Go over to the right side and remove the two nuts under the heater box and now the heater box is free from the dash. Now pull the right side of the dash out and up to access the heater box. You will see 4 screws and possibally a bracket with a switch mounted to two of these screws that we need to remove to access the heater core. 4 screws hold the core inside the heater box. Pull the core out and install the new one in the box. You may have to prop up the right side of the dash to get enough clearance. Careful to force the dash and not the new core to put the box back in place. Aklways put the top stud thru the firewall first or you will not get in in. If you attach the bottom studs first the top will not line up. Now just reverse the procedure to reinstall and you have just completed one of the hardest jobs in auto repair. Thanks for asking at, Rich

Nov 26, 2010 | 1985 Ford Crown Victoria

2 Answers

I need to replace the heater core in my 1986 Ford Bronco 2. Are there instructions on line on how to do this?

under the dash on the pass side there is a large black plastic box. take out the 6 screws and pull off the cover. there is a wire attached to the top that controls a flap, that just lifts off. under the hood loosen and remove the 2 host clamps right at the firewall area. Push the metal tubes in to the firewall. Then reach back in from under the dash and pull out the old core. put the new one in reverse order.

Nov 16, 2009 | 1986 Ford Bronco

1 Answer


it is not ness to remove the dash.

Drain cooling system.
Remove inlet and outlet hoses from heater core.
Remove lower right hush panel.
Remove lower trim panel.
Remove heater case cover screws.
Remove heater case cover.
Remove core support plate baffle screws.
Remove heater core, support plate and baffle from car.
Reverse removal proceedure to install.
Refill cooling system and check for leaks.

Nov 08, 2009 | Chevrolet Camaro Cars & Trucks

1 Answer

How do you remove the console in a 95 grand am se

It is very hard!! You actually are supposed to remove the whole dash!! I took a shortcut and just took the screws out of the plastic box under the dash where the heater core is,behind the console, next to the floorboard, and cut it across the back on the bottom. You then have to get under the car to remove this screw that is on the firewall between the 2 heater core hoses..then remove the hoses from the heater core on the firewall. Then you can get back inside the vehicle and it will pull out. When you replace, the cover that you cut, just put the screws back in and put some tape across where you cut the cover off. It saved me from having to take the whole dash out, and having to spend $300 to have a mechanic replace my heater core!!

Apr 27, 2009 | 1995 Pontiac Grand Am

3 Answers

Replacment of heater core on 01 chevy S-10

Have replaced my heater core in my 2001 regular cab 4wd in december 2009. Had to pull the complete dash including the complete metal dash behind the dash that you see. Also had to remove the right passenger side inner fender well to acess the remaining two bolts that hold the heater core cover to the firewall. Its an insane job to do but the repair shop books call for 9 1/2 hrs to do the job. I'm not an expert but this is what it takes.

Mar 01, 2009 | 2001 Chevrolet S-10

1 Answer

How do I change the heater core in my 1984 grand marquis? I dont have a manual

you have to remove the plenum case behind the dash. I will provide 94 gr marquis. don't have 84.

Section 12-03A: Air Conditioning System—Manual A/C-Heater 1994 Crown Victoria/Grand Marquis. Workshop Manual
  1. Remove the heater air plenum chamber assembly as outlined.
  2. Heater Air Plenum Chamber Removal
    1. Disconnect battery ground cable .
    1. Disconnect the heater water hoses from the heater core tubes. Plug the ends of the heater water hoses to prevent coolant loss.
    1. Plug heater core tubes securely to prevent coolant leakage from heater core during heater air plenum chamber removal.
    1. Remove three nuts located below the windshield wiper motor (17508) retaining the LH end of the heater air plenum chamber to the dash panel .
    1. Remove one nut retaining the upper LH corner of the A/C evaporator core housing to the dash panel .
    1. Remove LH and RH lower instrument panel insulators.
    1. Disconnect two vacuum supply hoses from vacuum source. Push grommet and vacuum supply hose into passenger compartment.
    1. Remove all instrument panel retaining screws and pull the instrument panel back as far as possible without disconnecting any wire harnesses.
    1. Loosen the RH door sill plate and remove the RH side cowl trim panel.
    1. Remove cross body brace and disconnect wiring harness from A/C electronic door actuator motor (19E616) and disconnect the sensor tube from the evaporator case connector.
    1. Disconnect the vacuum jumper harness at the multiple vacuum connector near the heater outlet floor duct.
    1. Disconnect the white vacuum hose from the heater and A/C air inlet duct door vacuum control motor.
    1. Remove two hush panels.
    1. Remove one plastic push fastener retaining the heater outlet floor duct to the LH end of the heater air plenum chamber . Remove LH screw and loosen RH screw on the rear face of the heater air plenum chamber and remove the heater outlet floor duct .
    1. Remove two nuts from the two studs along the lower flange of the heater air plenum chamber .
    1. Carefully move heater air plenum chamber rearward to allow heater core tubes and the stud at the top of the heater air plenum chamber to clear holes in the dash panel. Remove heater air plenum chamber from vehicle by rotating the top of the heater air plenum chamber forward, down and out from under the instrument panel . Carefully pull lower edge of instrument panel rearward as necessary while rolling the heater air plenum chamber from behind the instrument panel .
  1. Remove the four retaining screws from the heater core cover (18B300) and remove the heater core cover from the heater air plenum chamber assembly.

    Heater Core Removal


    Item Part Number Description 1 390092-S2 Screw (2 Req'd) 2 18658 Heater Core Case Seal 3 18476 Heater Core 4 18570 Heater Dash Gasket 5 18471 Heater Air Plenum Chamber 6 18B300 Heater Core Cover
  1. Pull the heater core assembly from the heater air plenum chamber assembly.
  1. Carefully install heater air plenum chamber assembly into the heater air plenum chamber assembly. Visually check to ensure that core seal is properly positioned.
  1. Position the heater core cover and install the four retaining screws.
  1. Install the heater air plenum chamber assembly as outlined.

Feb 27, 2009 | 1984 Mercury Grand Marquis

2 Answers


Drain the coolant. Remove the dashboard first, then a bunch of air ducts, then the heater core cover. Remove the heater hoses in the rear of the motor, and finally the heater core.

Feb 21, 2009 | 2004 Chevrolet Impala

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

1 Answer

Heater core replacement

This is a really easy job, disconnect the heater hoses at the firewall, go inside the truck on the passenger side there is a plastic panel/cover over the core, 6 bolts/screws I think, remove the cover pull the core, tops 1 hour, as job at work I did them in 20 minutes.

Oct 15, 2008 | 1998 Ford F150 Regular Cab

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