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How reliabale is the 86 (late 85) 2.5 model? by DanDamage
Started on: 06-11-2014 05:49 PM
Replies: 17 (194 views)
Last post by: DanDamage on 06-14-2014 02:38 AM
DanDamage
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Report this Post06-11-2014 05:49 PM Click Here to See the Profile for DanDamageClick Here to Email DanDamageSend a Private Message to DanDamageEdit/Delete MessageReply w/QuoteDirect Link to This Post
I had a late 83 (84) Fiero for 3 years befoere it became an electrical nightmare. I hear the 84s were wired differently. Mechanically and electrically how reliable is the 86 (se?) model ?
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fieroguy123
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Report this Post06-11-2014 06:25 PM Click Here to See the Profile for fieroguy123Click Here to Email fieroguy123Send a Private Message to fieroguy123Edit/Delete MessageReply w/QuoteDirect Link to This Post
In my honest opinion, there's no such thing as a reliable Fiero, not in stock form anyway. They're getting very old and most were poorly maintained. I have driven fieros as daily drivers before but they were all engine swapped.
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Csjag
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Report this Post06-11-2014 07:24 PM Click Here to See the Profile for CsjagClick Here to Email CsjagSend a Private Message to CsjagEdit/Delete MessageReply w/QuoteDirect Link to This Post
I think it would be fine as long as it wasn't altered or abused. I have an 85 SE 2M4 that I bought last year. The car had sat for 8 years and after I replaced the fuel pump and the gas tank, starter and alternator it is fine. I have had to redo the headlights but now even if it sits for a week or two it starts right up.
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Alex4mula
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Report this Post06-11-2014 08:31 PM Click Here to See the Profile for Alex4mulaClick Here to Email Alex4mulaSend a Private Message to Alex4mulaEdit/Delete MessageReply w/QuoteDirect Link to This Post
Fieros are not getting old. They are old. 25+ years old. As an old car it will not be reliable as is unless you upgrade & maintain it. Having said that the 84 Fieros (there is no such thing as an 83) are the worst and have several different things from the later upgraded 85 and up. So yes they are better.
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TopNotch
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Report this Post06-11-2014 09:13 PM Click Here to See the Profile for TopNotchClick Here to visit TopNotch's HomePageSend a Private Message to TopNotchEdit/Delete MessageReply w/QuoteDirect Link to This Post
I don't know about 86 dukes, but I got 200,000 miles out of my 88 duke before I rebuilt it. About 25,000 miles since the rebuild.
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Fiero84Freak
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Report this Post06-11-2014 09:14 PM Click Here to See the Profile for Fiero84FreakClick Here to Email Fiero84FreakSend a Private Message to Fiero84FreakEdit/Delete MessageReply w/QuoteDirect Link to This Post
The wiring issue you read about with 1984 Fieros is primarily with the C500 connector. In 1984, it's position was on the firewall. The obvious issue this caused was it put it not only close to ambient heat from the exhaust but also directly in the path of elements from the center magnesium decklid vent. For 1985 onwards, it was moved to the equally exposed area in front of the battery. However this position is much more reliable in terms of overall degradation on the wiring components.

I agree too it's not a matter of that Fieros are becoming old but that they are just simply old. It's a 30+ year old design using mostly already at-the-time existing components.
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deceler8
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Report this Post06-11-2014 10:16 PM Click Here to See the Profile for deceler8Click Here to Email deceler8Send a Private Message to deceler8Edit/Delete MessageReply w/QuoteDirect Link to This Post
I've had an '86 2m4 automatic for the past 16 years as a daily driver and it's been very reliable.

Sure, there's the occasional ICM or TPS issue, but they're easily fixable given all the resources on this forum.

------------------

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FieroCanada
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Report this Post06-11-2014 11:06 PM Click Here to See the Profile for FieroCanadaClick Here to Email FieroCanadaSend a Private Message to FieroCanadaEdit/Delete MessageReply w/QuoteDirect Link to This Post
I have a 85 SE 2.5 and its been very good to me.
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Marine1981
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Report this Post06-12-2014 12:03 AM Click Here to See the Profile for Marine1981Click Here to visit Marine1981's HomePageSend a Private Message to Marine1981Edit/Delete MessageReply w/QuoteDirect Link to This Post
My wife daily drives her 84, has a 5 speed swap that I highly recommend for highway driving.

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sricka01
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Report this Post06-12-2014 02:35 AM Click Here to See the Profile for sricka01Send a Private Message to sricka01Edit/Delete MessageReply w/QuoteDirect Link to This Post
More reliable than the 83 prototypes, 84, but less reliable than the 86, 87, and finally, 88. j/k
It varies man. Can buy a junked 88 and then run into a 84 that runs like a tank and looks like it rolled off the showroom floor.
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Gall757
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Report this Post06-12-2014 10:53 AM Click Here to See the Profile for Gall757Send a Private Message to Gall757Edit/Delete MessageReply w/QuoteDirect Link to This Post
+1

Here in 2014, maintenance trumps everything. An '84 can easily be much more reliable than an '88 that sat under a tree for 5 years.....and it seems that original owners of Fieros were often not at all mechanically inclined. If you do get the whole thing freshened up, it is as good as any American car.
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Report this Post06-12-2014 10:58 AM Click Here to See the Profile for pontiackid86Click Here to Email pontiackid86Send a Private Message to pontiackid86Edit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by fieroguy123:

In my honest opinion, there's no such thing as a reliable Fiero, not in stock form anyway. They're getting very old and most were poorly maintained. I have driven fieros as daily drivers before but they were all engine swapped.

I second this... being its an older car. parts in it are 25+ years old it's going to be very hard to get a reliable one.
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DanDamage
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Report this Post06-13-2014 04:34 PM Click Here to See the Profile for DanDamageClick Here to Email DanDamageSend a Private Message to DanDamageEdit/Delete MessageReply w/QuoteDirect Link to This Post
My 84 was an electrical nightmare. Is the 86 5 speed SE? Also are headlights motors the same as 84? Btw my 84 was made in October 83
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Csjag
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Report this Post06-13-2014 04:44 PM Click Here to See the Profile for CsjagClick Here to Email CsjagSend a Private Message to CsjagEdit/Delete MessageReply w/QuoteDirect Link to This Post
No more or less of an electrical nightmare than any other 1986 vehicle. The headlight motors are the same design but are easily rebuilt.
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DKcustoms
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Report this Post06-13-2014 08:10 PM Click Here to See the Profile for DKcustomsSend a Private Message to DKcustomsEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by DanDamage:

My 84 was an electrical nightmare. Is the 86 5 speed SE? Also are headlights motors the same as 84? Btw my 84 was made in October 83


The 86 SE came with a 4 speed muncie, the 86 GT came with the 5 speed Getrag.

The 84-86 headlight motors are the same. The 87-88 headlight motors and wiring harness is much better, I swapped them into mine and am very happy.
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Fiero STS
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Report this Post06-13-2014 08:54 PM Click Here to See the Profile for Fiero STSClick Here to Email Fiero STSSend a Private Message to Fiero STSEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by DKcustoms:


The 86 SE came with a 4 speed muncie, the 86 GT came with the 5 speed Getrag.

The 84-86 headlight motors are the same. The 87-88 headlight motors and wiring harness is much better, I swapped them into mine and am very happy.


Unless it was a 4 cylinder than it had a 5 speed just like 85's
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DanDamage
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Report this Post06-13-2014 09:22 PM Click Here to See the Profile for DanDamageClick Here to Email DanDamageSend a Private Message to DanDamageEdit/Delete MessageReply w/QuoteDirect Link to This Post
cool so the 86 se has a muncie? with a german style shifter? same muncie as the 84? hell of a transmission
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DanDamage
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Report this Post06-14-2014 02:38 AM Click Here to See the Profile for DanDamageClick Here to Email DanDamageSend a Private Message to DanDamageEdit/Delete MessageReply w/QuoteDirect Link to This Post
My 84 was an electrical nightmare. Is the 86 5 speed SE? Also are headlights motors the same as 84? Btw my 84 was made in October 83
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