Mechanics

DASH LIGHTS BLINK ON AND OFF THEN ENGINE STALLS

2003 Buick Regal • 90,000 miles

03 Buick Regal. Stalled the other day and when I tried to start it, the dash lights flashed on and off repeatedly and the engine revved in time with the dash lights until it stalled (same tempo as if I'd turned the emergency hazards on).
When I did turn the hazard lights on, the car started and ran fine. Turned hazards off. Dash lights and engine did the same thing until it stalled again.
I tried disconnecting the fuse for hazards and it ran ok for awhile then stalled and flashed again.
It seems to be ok in either case when idling but when it's in drive and trying to move, the trouble starts.
Any ideas as to what might be causing this?
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Mulliganstein
August 11, 2012.




Symptoms indicate a possible loose ground connection somewhere.


KHLow2008
Aug 11, 2012.
I would check the battery connection first.


Mr onsite
Aug 11, 2012.
Yeah, battery was replaced a, month ago and is fine. Can't seem to find any bad grounds.
I took the PCM out and banged on it while the car was idling and nothing happened.
I've also read about a possible bad ignition switch is that worth a look?
Also where is the BCM on this car?


Tiny
Mulliganstein
Aug 11, 2012.
Did the problem began after the battery was replaced or before?


Mr onsite
Aug 11, 2012.
The new battery was in for a month or two and everything was fine. The problem just started a couple days ago.
I found this video on Youtube my car is doing the same thing only mine stops when you turn on the hazards not the turn signals.

http://www.youtube.com/watch?v=NSjnagtYQ7g

Thanks



Tiny
Mulliganstein
Aug 11, 2012.
I would call the dealerships service department and describe the problem to them, to see if they have any recall. It could be the multifunction switch creating the whole problem or the ignition switch itself.
Good luck.
AD


Mr onsite
Aug 12, 2012.
Vehicle is equipped with BCM and it is possible that is the cause.
Get a scan done to check for trouble codes.


KHLow2008
Aug 12, 2012.
Where is the BCM located on this car? It's not in my haynes manual.
Thanks


Tiny
Mulliganstein
Aug 12, 2012.
P.S> I did a scan. Got some ABS problems and an O2 sensor problem.


Tiny
Mulliganstein
Aug 12, 2012.
BCM is behind left side of dash, left of steering column. It could be the ignition switch as per the link you gave as the hazard lights and turn signals are related.

Near steering column there are 2 gdounding points, check those as they are for the BCM.


KHLow2008
Aug 12, 2012.

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