Question about 1988 Chevrolet Cavalier Z24

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Heater core How do I change the heater core on a 1988 CHEVROLET CAVALIER

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  • 91protege Jan 09, 2009

    how do i remove the dashboard itself to get at the heater box,i have practically stripped everything off and it still will not move.91 protege lx w/air

  • christina trohan Jan 17, 2009

    i am in same situation, except that my heater core is fine, i need the blower to work so I can turn switch on in van to blow heat. Someone help me, just bought new heater relay, did not change anything.

  • str8kali Jan 24, 2009

    I have a 1991 Chevy Cavalier, automatic, 4 cylinder without A/C, 2 door sedan that I need to replace the heater core. I need instructions or pictures of how to dismantle the dashboard to install this. Any help you could give me would be greatly appreciated.

  • rneihouse73 Jan 28, 2009

    I have a 1999 ford winstar 3.8L 6 cylinder and my heater core is bad. How do I remove it and replace it? Any help is greatly appreciated!

  • Anonymous Feb 18, 2009

    where exactly is the heater core hoses on a 94 beretta?

  • dozzzerrr Feb 20, 2009

    how do i get the dash off to change the heater core

  • stockweld Apr 05, 2009

    the top half of the dash too?

  • yadayada
    yadayada May 11, 2010

    Do you still need help?



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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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How to remove the heater core from a 1999 dodge ram 2500 V10
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Posted on Feb 06, 2009

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Remove the cover under the radio 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

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Posted on Dec 30, 2008

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1 Answer

Where is heater core located on 2001 cavalier

the only thing I would do differently is I would pinch off the heater hoses and not drain the entire cooling system. This is a nice configuration behind the glove box where the entire heater box doesn't need to be removed like on the majority of other cars.

Mar 25, 2013 | 2001 Chevrolet Cavalier

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Few days ago cavalier decided to empty coolant out of its tank and overheat. we since then took compressor off serpentine belt changed thermostat checked oil for water flushed system checked fan heater...

Water pump. The impeller can come loose from the shaft and not circulate enough coolant. These can throw you off, because when you remove the pump the impeller will be tight against the shaft. It is when they warm up they begin to slip. If the heater core is not leaking don't bypass it.

Aug 17, 2011 | 1997 Chevrolet Cavalier

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How to replace the heater core on a 97 chevrolet cavalier

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.

Jan 04, 2011 | 1997 Chevrolet Cavalier

1 Answer

Step by step instr. to remove heater core

It would be best to obtain a haynes manual about $15 from local auto supply store as it has pictures as well as instructions. Not an easy job.

Jan 14, 2010 | 1988 Chevrolet Cavalier Z24

1 Answer

95 cavalier / no heat have antifreeze in drivers floor

This would be a indivcation thatyour heater core is leaking or that the hoses that are attached to the heater core is leaking
I would first inspect the hoses that go to the heater core and then remove the cover for the heater core this has a seam in the middle of the box that covers the heater core just use a very sharp knife and gently cut along the seam and remove the cover now you will be able to see the heater core and you will be able to tell if the heater core is leaking or if it is just the hose that is attached to it ok?
I hope this is very helpful for you
Best regards Michael

Dec 26, 2009 | 1995 Chevrolet Cavalier

1 Answer

How to repair heater core for chevy cavalier

I installed a heater core in a 2004 Chevrolet and need to know how to hook up the vent cables (1 goes to the left and 1 goes to the right) for the back of the control knobs. Do they screw in or a are snapped in cant tell.

Nov 24, 2009 | 1992 Chevrolet Cavalier

1 Answer

Heater core blew

do you know what you are getting into
the WHOLE DASH has to come out right to the firewall
i can't give you step by step directions there is so much it takes us (GM TECHS) about 40 or more pages when we print off our service manual there are hidden bolts it's just a nasty job
sorry for the bad news

Nov 14, 2009 | 1999 Chevrolet Cavalier

1 Answer

How do i change a heater core on a 1998 chevy cavalier


this is a very large and time conuming event. the entire dash board must be removed to access the heater case, only then will the heater core be accessable. good luck!

Jun 09, 2009 | 1998 Chevrolet Cavalier

1 Answer

Heater core steaming up and stinking of fld how do i remove 1995

All you major auto parts stores have web sites with step by step instructions and diagrams that can guide you thru it.

Feb 14, 2009 | 1988 Chevrolet Cavalier Z24

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