93 Bonneville SSE sometimes stalls in rush hour traffic - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat

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Old 02-05-2006, 04:57 PM   #1
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Default 93 Bonneville SSE sometimes stalls in rush hour traffic

It'* driving me nuts.
I'm thinking about hiring a tow truck to follow me around everywhere!

Here'* my problem.

First and foremost, I can't fix it myself.
Nor can I diagnose my own problems.
Car is at the dealer right now.

Second, I can't tell if the dying problem and THIS problem are related.

Several months ago I noticed that my dash gauges were going nuts.
Oil, water and charging gauges were bouncing back and forth and sometimes freezing.

I must add that one day I found about a inch of water on the floor behind the drivers seat.
I think it had snowed the night before, and I had about 6" of snow covering the roof area. And yes, I do have a sunroof.
I never have seen any other water issues, except for the occasional leak while washing the vehicle at the car wash.

A few months later, the driver information center on the dash started flickering on and off and sometimes would just go dark.
When it came back on everything would reset itself and I would get the "ding-ding" like when you first start the car up.
This was all happening as I drove the car both on the highway and in city traffic.
I ignored it.

One day the gauges were bouncing back and forth VIOLENTLY and the displays on the dash were flickering and next thing I knew, I felt the steering get tight and I realized the car had shut off.
I managed to pull off the road and the car would not re-start.
I waited 15 minutes and it started back up again.
The gauge problem persisted.

Every few weeks now, USUALLY IN RUSH HOUR TRAFFIC, the car will just shut itself off and I have to HOPE that I am not in the middle of a intersection.
I've been lucky so far and each time it'* died I have been able to wrestle the dead vehicle out of harms way.
Sooner or later, my luck is going to run out.
The dealer can't tell me anything other than he suspects the stalling problem and the gauge problem are unrelated.
He has sent the instrument cluster out to be checked and repaired, but he still feels it'* not going to fix the problem with the stalling.

What could be causing the car to die, usually in traffic?
I notice that the vehicle seems to run a little rough (like a rough idle, usually while I am sitting at a red light) and it seems that as soon as I notice it'* running a little rough, it stalls minutes later.

Why does it start right back up again if you wait about 10 or 15 minutes?
If you try to re-start it sooner, it will turn over, but it won't start.

Should I just replace the following?
Fuel relay, crank sensor, fuel pump and ignition switch and hope that one of these things are faulty?

The car runs great, even with 125k and I don't want to just junk it!

I can't fix it myself so I have to hold the dealer by the hand.
I got a little bit of cash to get it fixed, I just need to narrow down what could be the issue.

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Old 02-05-2006, 05:31 PM   #2
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Dash gauges going nuts:

Stalling may be either this:

Or both problems are related to the water and the main ground bus location in the passenger cabin. At the driver'* entry sill, under the carpet, you'll find a ground bus with a bunch of grounds and jumpers. Take it apart and clean it.
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That'* your little bugger.
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Old 02-05-2006, 06:19 PM   #3
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That'* a great place to start especially since you noticed water. I'd aim for the passenger'* side buss first as the cluster ground is in the right kick panel. The buss is in the same relative location as the one pictured above, taped to the wire loom, and will have black wires instead of white. Inspect for corrosion and clean if necessary.

Corrosion in these busses can cause all kinds of intermittent and quite crazy electrical problems.
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