1996SE Multiple problems - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 01-17-2009, 06:58 PM   #1
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Unhappy 1996SE Multiple problems

I will try to keep this uncluttered...

I own a 1996 SE with 130,000+ miles on it. I love it, I have owned it for 6 years, it was my first car, yada yada. I am too poor to get a new car, but I can do basic stuff to it, (I did plugs/wires, break pads/rotors, blower motor, etc)

First off whenever I turn the wheel sharp, turn on the back window defroster, or try to roll down the windows the car sputters, and turns off. Also sometimes when I roll down the windows and the car is sputtering, the Security light will turn off when I am rolling them down, and back on when I stop. The security light is on 50% of the time and randomly turns off... Same thing with traction control. The original car alarm likes to go off randomly too. This problem has been going on for a few months now but I managed.

I had someone do a load test on the battery, the battery was almost perfect, but the alternator was charging it at 19 volts.... Whenever it warms up I will check for a loose ground or anything.

Now my check engine light has turned on, and I took it to Auto Zone to see what the codes were.

P0171- THE PCM has determined that during testing, the fuel system for bank 1 was too lean. (Bank 1 identifies the location of cylinder 1, while bank 2 identifies the cylinders on the opposite bank)
No clue about this one.

P0305- The PCM has determined that a misfire has occurred in cylinder 5.
The plugs/wires are only 20,000 miles old, coil is original.

With that said, ideas?

Last edited by Erkdance; 01-17-2009 at 07:00 PM.
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Old 01-17-2009, 07:27 PM   #2
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check all your ground wires and connections for corrosion.
There is a very common ground problem where the wires get corroded and cause all sorts of problems. And problems as you described.
The problem spot is found in both drivers and passenger door ground busses.

Example of area:
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look for green corrosion when you pull apart the ground buss:


example of corrosion on buss:


and back of wires:


and check your battery cables..both ends if possible for corrosion as well:

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The reason for this corrosion is because over time our inner door moldings shrink and allow water to splash in the interior and the water seeps down on top of these two ground areas.
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