So I had a blown head gasket in my 95 3.1 lumina. I knew this because with the engine stone cold I would have pressure in the cooling system at times and was losing coolent(there where no leaks to be seen). After I put everything back together I started it up and let it idle fo 20 min. During that time it stalled twice while it seemed to be acuiring the right idle speed. It ran a little rough for about 10 min the settled down and idled nice and smooth. I turned it off and restarted it and it ran nice put it in gear and started down the road and after about 30 seconds started to 'buck' when I gave it gas then after about 2 min it stalled and would not start. I tried plugging in my trusty OBD1 GM scanner but now the service engine light won't blink. I'm at a loss here. I've no clue as to what to do next that won't cost me an arm and a leg.


Right now I have the trickle charger on the battery because I killed it trying to get it restarted. Tomarrow after work I'm going to reset the ECM again and hope for the best.

Oh BTW it did this 'bucking' once before for about 10 seconds then went away and this was about 2 months ago. I wonder if I fixed one problem that was covering up another.


Any help would be greatly appreciated.

Thank You

OPB