Stalling out and other issues, Help??
I own a 1990 Buick LeSabre Custom 3800 199,5XX MILES, it starts up every time with barely a turn off the key. I changed plugs and oil pressure switch. My issue is that once the motor is nice and warmed up and I either put it to reverse or drive with my foot on the brake the car will idle down and stall out. The torque converter sensor was unplugged to save it from locking up, but if i drop it in gear without my foot or the brake but instead with my foot barely resting over the gas pedal or get a rolling start in neutral with it running it won't shut off when I put it in gear. Other issues with it are it has a rough idle and has a slight miss you can hear once it's warm. Suggestions, advice? Anything would be helpful, I've done 95% of the work to the car myself, but I had a shop change the harmonic balancer/crankshaft pulley. Since then you can hear the miss when it shifts to 3rd and your pulling any type a hill, big or little, the motor will shudder with every other turn of the crank. Not sure what I need to with it anymore but it's slowly becoming a money pit.