SSE88 VOLTAGE PROBLEM - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 06-25-2004, 01:05 AM   #1
panda1956
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Default SSE88 VOLTAGE PROBLEM

I have a problem with the voltage on my SSE88 when the A/C is on.
The gauge needle goes from normal middle to almost the first
quarter of the gauge read out when A/C is on.
At first, I taught that the A/C compressor (original) was sucking too much juice from the charging system and I replaced-it.
Problem persists thow.
The needle is showing sign of charging but it seem that the alternator is not capable to rebuilt the voltage to maintain a
high output voltage quality especially at low speed (city drive).
Worst, when I arrive to a traffic light, when I touch the brake pedal
the gauge needle goes even lower and this also impact the left-right turning signal light that goes extremely slow.
When I shut off the A/C the system seems sufficient enough.
I am considering now to replace the alternator now (to bad it was new since last year)
with a high performance 200 AMPS alternator from Domestic Performance site at $250.
Before doing this, Is there a cheaper cure?
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Old 06-25-2004, 09:46 AM   #2
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Delco alternators use a "diode trio" to rectify the alternating current (why it is an ALTERNATor). If one of the diodes fails, the output of the alternator drops significantly. I would look there first.

In the bad old daze, an a/c car received a "high output" alternator - 55 amp - and that was enough. Believe the Bonne has a 105 and I have never needed any more though a "lifetime" alternator would be a good deal if planning to keep the car.
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Old 06-25-2004, 04:50 PM   #3
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a little off topic but does my '89 have a 105amp?
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Old 06-25-2004, 05:14 PM   #4
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Quote:
Originally Posted by opensourceguy
a little off topic but does my '89 have a 105amp?
each Bonneville 87-91 models are factory equiped with a 105 AMP. Alternator.
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Old 06-25-2004, 05:17 PM   #5
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Quote:
Originally Posted by padgett
Delco alternators use a "diode trio" to rectify the alternating current (why it is an ALTERNATor). If one of the diodes fails, the output of the alternator drops significantly. I would look there first.

In the bad old daze, an a/c car received a "high output" alternator - 55 amp - and that was enough. Believe the Bonne has a 105 and I have never needed any more though a "lifetime" alternator would be a good deal if planning to keep the car.
Never heard about a "life time alternator" especially on the bonneville which is well known to die several alternator during it'* life.
This is my 4th alternators on my SSE88 so far...looking now for the 5th!!
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Old 06-25-2004, 11:19 PM   #6
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From Autozone:
DURALAST ALTERNATOR for a 1990 PONTIAC BONNEVILLE
Unit Price: $79.99
Core Value*: $30.00
Part No.: DL1371-6-11
Weight: 10.06 lbs.
Warranty: LLT

LLT::Limited LifeTime
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Old 06-26-2004, 01:14 AM   #7
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Quote:
Originally Posted by padgett
From Autozone:
DURALAST ALTERNATOR for a 1990 PONTIAC BONNEVILLE
Unit Price: $79.99
Core Value*: $30.00
Part No.: DL1371-6-11
Weight: 10.06 lbs.
Warranty: LLT

LLT::Limited LifeTime
Is it a 105 amps?
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Old 06-26-2004, 10:08 AM   #8
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The "lifetime" alternator he'* talking about is an extra purchase price that you pay for a lifetime warrently, that way if the alternator dies, they will replace it for free.
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Old 06-26-2004, 04:21 PM   #9
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Ayup & $15 for same sounds pretty good to me. Have had the 90 Bonne since new and think the longest an alternator lasted was two years. Also helps that the alternator is one of the easiest parts to replace. Hardest thing is getting the belt off (anyone have a 2 foot 18 mm wrench ?

Have noticed the ones on my 88 and 92 are larger diameter and seem to last much longer.
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