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Car Forum / Pontiac / Pontiac Cars / November 2005

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1986 Grand Prix heater core?

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69Rocketman - 22 Oct 2005 13:10 GMT
I have an '86 Grand Prix and I've recently had to start using the heater
again. When I turn on the heater, steam comes out of all vents and it smells
badly like anti-freeze. Is my heater core gone? How hard/long of a job is it
to change out? Should it only be done with new replacement parts. or is a
salvage yard a good place to look for one?

Any help would be appreciated.

Thanks
Duane
FBR - 22 Oct 2005 14:34 GMT
> I have an '86 Grand Prix and I've recently had to start using the heater
> again. When I turn on the heater, steam comes out of all vents and it smells
[quoted text clipped - 6 lines]
> Thanks
> Duane

More than likely the heater core is indeed history.  Don't bother with a
junkyard part as it will not be in any better shape, and for the price it's
not worth the effort.  If you don't already have a service manual your local
library prbably does.  It's not really that hard of a job.

Good luck.
69Rocketman - 22 Oct 2005 17:16 GMT
> > I have an '86 Grand Prix and I've recently had to start using the heater
> > again. When I turn on the heater, steam comes out of all vents and it
[quoted text clipped - 15 lines]
>
> Good luck.

Thanks for the pointers. I priced a new core after posting this and it was
"only" $53 Canadian so a wrecking yard part was out of the question as you
said. All is now fixed, and now there is no steam blowing into the passenger
compartment. I had the Haynes manual and surprising enough, it was actually
quite helpful for this job.
Thanks for the reply FBR.

Duane
80 Knight - 04 Nov 2005 05:52 GMT
>> I have an '86 Grand Prix and I've recently had to start using the heater
>> again. When I turn on the heater, steam comes out of all vents and it
[quoted text clipped - 17 lines]
>
> Good luck.

Have to disagree here. I had to replace the heater core in my old '91 Grand
Prix, so I went to the junk yard and found one in a Chevy Lumina that was
brand new. You would be amazed at what you can find at a junk yard, if you
have the time to look. I only paid $15 for it too.

80K
 
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