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Car Forum / Pontiac / Pontiac Fiero / June 2006

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87 Fiero GT - Overheating

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Nightcheck - 04 Jun 2006 21:23 GMT
Hi -
 I have a beautiful 1987 Fiero GT (original owner) which (knock on
wood) has rarely given me problems - but I a stumped now (probably
because I know next to nothing about auto repairs).

The problem is overheating as follows:

1) I fill the place (where the thermostat is housed - on the rear
engine) with a 50/50 mixture of coolant and water. This is done until
it begins to flush out from the radiator (I had already taken the front
radiator cap off).

2) I fill the Coolant overflow tank with coolant.

3) After about 5 minutes of driving with no problems - the heating
gaige "redlines" - I pull over and it is hissing like it's read to
explode. Please note: Nothing appears to be leaking because I always
check -  I know the original water and coolant is still in there -
albeit probably turned to steam.

4) Since nothing was leaking - I assumed it was a bad thermostat so I
purchased another one - yet the same problem.

5) I replaced the water pump in 2004 (8,000 miles ago - I drive the car
very little) and replaced the radiator in 2001 (19,000 miles ago) - so
I would assume it shouldn't be one of those (I hope)

Can anyone give me some guidance on what the problem might be. ?

Thanks so much in advance.

Rick
Keith - 04 Jun 2006 21:51 GMT
Dude, I had the same problem on both an 84 and an 88. The problem was a
blown head gasket in either case. Seems like they are prone to blowing
into the water jacket. Have the compression checked to confirm it, I
could be wrong.

> Hi -
>   I have a beautiful 1987 Fiero GT (original owner) which (knock on
[quoted text clipped - 28 lines]
>
> Rick
John Craker - 04 Jun 2006 22:50 GMT
Had any other work done to it recently?  Something where someone had to jack
it up??
(you can see where this questioning is leading!)

You've replaced the front rad cap too right?  There's really only good for a
few years.  I've replaced what HAD to be 20 year old stockers on customers
cars and they wondered why it leaked...  sigh....

Anyhow, that aside....
You're on the right track with the filling, but - having the car pointed
downhill helps.  Make sure it's a good stream coming out (not just bubbles
or whatever), and have someone else slap on the front cap WHILE you're
filling.  This leaves the least amount of air up there.

Put the rear cap on withOUT the thermostat in there.  Fire up the car and
let it run about 30 seconds.  Pull the cap, and make sure there's no foam,
or dropped level.  If there is, top it up, then repeat until there's no
change.  Now put in the T-stat, slap on the cap and you should be golden.

> Hi -
>  I have a beautiful 1987 Fiero GT (original owner) which (knock on
[quoted text clipped - 28 lines]
>
> Rick
PePe_LePu_For2 - 05 Jun 2006 05:26 GMT
Find out if the new water pump had a plastic impeller instead of a metal
one. The plastic parts are bogus and will only last about as long as yours
did.

> Hi -
>   I have a beautiful 1987 Fiero GT (original owner) which (knock on
[quoted text clipped - 28 lines]
>
> Rick
Jeff Ballard - 10 Jun 2006 17:26 GMT
If you're not aware of Pennock's Fiero Forum (PFF), you missing out on a
lot of Fiero tech info and help.

http://www.fiero.nl/

The guys on here and elsewhere swear by a fairly detailed "burping"
process for the radiator system to get all the air out ... basically
doing what you did , but in several cycles to make sure the air is purged.

Good Luck,

Jeff
Boomtastic Racing - 11 Jun 2006 01:06 GMT
>If you're not aware of Pennock's Fiero Forum (PFF), you missing out on a
>lot of Fiero tech info and help.
>
>http://www.fiero.nl/

If you prefer civility, try the Fiero Yahoogroup instead. ;)

http://groups.yahoo.com/group/FIERO/

Eric
Mr Potatohead - 11 Jun 2006 18:37 GMT
>>If you're not aware of Pennock's Fiero Forum (PFF), you missing out on a
>>lot of Fiero tech info and help.
[quoted text clipped - 6 lines]
>
> Eric

But if you prefer convenience, stay right here. Newsgroups are no
maintenance, you don't have to check it every day and throw things into
the trash. You'll never clog your in-basket. Messages sit on the ISP's
server and they trash them when they want, usually long after everyone
has read them.
We used to have some really good people here but some have left because
everyone says to go to Pennock's, etc. Good advice, but if there is no
traffic here, the ISPs will start to drop us and those of us who don't
have time enough to keep up with Fiero Yahoo and/or Pennocks will be
cast off without a towline.

Since you are in the neighborhood, Boomeric, perhaps you can show Ed
Parks how to work newsgroups. I tried, but I'm a Mac guy and he's not.
Then we'll get more people posting, the ISPs will be happy, people will
get turned on again, and this gateway into the Fiero Lifestyle with go on.

ALT.AUTOS.FIERO: The place to go when you just want a hug, not a
marriage.. :-)
Boomtastic Racing - 11 Jun 2006 22:08 GMT
>Since you are in the neighborhood, Boomeric, perhaps you can show Ed
>Parks how to work newsgroups. I tried, but I'm a Mac guy and he's not.
>Then we'll get more people posting, the ISPs will be happy, people will
>get turned on again, and this gateway into the Fiero Lifestyle with go on.

Ed knows Fieros, not PCs. His next class with me is on attaching files
to email messages. :) Newsgroups? No, too far advanced for him. Could
you imagine me showing him how to work something like Forte Agent??
YIKES! LOL

Now when are you bringing me that '88 coupe? ;)
Mr Potatohead - 12 Jun 2006 04:37 GMT
>>Since you are in the neighborhood, Boomeric, perhaps you can show Ed
>>Parks how to work newsgroups. I tried, but I'm a Mac guy and he's not.
[quoted text clipped - 7 lines]
>
> Now when are you bringing me that '88 coupe? ;)

If I still have it in the Fall, I'll haul it down. What you want with
that car? No AC. Hard to deal with in the sunny south. It wants to be
here in New England or in Canada. Ed says if it goes down there, it
becomes a parts car and if I wanted that, I'd do it myself. :-)
John Craker - 12 Jun 2006 06:44 GMT
>> Now when are you bringing me that '88 coupe? ;)
>
> If I still have it in the Fall, I'll haul it down. What you want with that
> car? No AC. Hard to deal with in the sunny south. It wants to be here in
> New England or in Canada. Ed says if it goes down there, it becomes a
> parts car and if I wanted that, I'd do it myself. :-)

You KNOW it wants to be HERE in Canada!

Haul it out here if you're going to haul it anywhere!  ;)
Mr Potatohead - 12 Jun 2006 22:50 GMT
>>>Now when are you bringing me that '88 coupe? ;)
>>
[quoted text clipped - 6 lines]
>
> Haul it out here if you're going to haul it anywhere!  ;)

By "out here", you mean British Columbia, right? Can't get much
farther away and still be in North America. But if you're willing to
pay the freight, I'm up for a long ride west in the Fall. The question
is, at what point along the border will they let me enter Canada?

And even more important, do I bring my passport and longjohns? :-)
John Craker - 14 Jun 2006 03:09 GMT
>> You KNOW it wants to be HERE in Canada!
>>
>> Haul it out here if you're going to haul it anywhere!  ;)

> By "out here", you mean British Columbia, right? Can't get much
> farther away and still be in North America. But if you're willing to
> pay the freight, I'm up for a long ride west in the Fall. The question
> is, at what point along the border will they let me enter Canada?
>
> And even more important, do I bring my passport and longjohns? :-)

Yup, I'm in BC.  So ya know...  if you just HAPPEN to be here ANYHOW, you
can leave it with me.  ;)

Passports not a bad idea, but it's not required YET.  So far, we just need a
drivers license and birth certificate to head south.  There's talk of
stiffening up the rules to go down (they add a bit each year), but that's
where we're at right now.

As for longjohns....  that'll depend on the time of year...  right now you'd
drop dead from heat stroke!  :)
Boomtastic Racing - 12 Jun 2006 15:17 GMT
>>>Since you are in the neighborhood, Boomeric, perhaps you can show Ed
>>>Parks how to work newsgroups. I tried, but I'm a Mac guy and he's not.
[quoted text clipped - 12 lines]
>here in New England or in Canada. Ed says if it goes down there, it
>becomes a parts car and if I wanted that, I'd do it myself. :-)

Just because it does not have A/C doesn't mean it wouldn't be a good
little racer or such down here. These "southern" folks are pampered by
A/C. ;)

LOL
Mr Potatohead - 12 Jun 2006 16:23 GMT
>>>>Since you are in the neighborhood, Boomeric, perhaps you can show Ed
>>>>Parks how to work newsgroups. I tried, but I'm a Mac guy and he's not.
[quoted text clipped - 18 lines]
>
> LOL
I know. It took me almost 50 years of driving before I got a car with
functioning
air conditioning. Even now I only use it to keep it working. Sure I do. :-)
Todd Zuercher - 13 Jun 2006 23:31 GMT
>>> Since you are in the neighborhood, Boomeric, perhaps you can show Ed
>>> Parks how to work newsgroups. I tried, but I'm a Mac guy and he's
[quoted text clipped - 13 lines]
> here in New England or in Canada. Ed says if it goes down there, it
> becomes a parts car and if I wanted that, I'd do it myself. :-)

I think it would much rather come to Ohio and be turned into a Formula.
  All the parts are already sitting in my barn.

Signature

========================================

Todd Zuercher
mailto:tzuercher@earthlink.net

========================================

Mr Potatohead - 13 Jun 2006 23:36 GMT
>>> Now when are you bringing me that '88 coupe? ;)
>>
[quoted text clipped - 5 lines]
> I think it would much rather come to Ohio and be turned into a Formula.
>   All the parts are already sitting in my barn.

Lucky boy. He's got a barn. If I had a barn, I'd keep the car. :-)
 
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