1992 GMC Suburban 1500 Q&A
1992 GMC Suburban 1500 Question: can my ignition cause my suburban to stall,or could it be the starter?
my 92 suburban stalled while leaving the parking lot and would not start again.I towed it home and it sat for two days while i charged the battery.the ignition key is very loose and sloppy,i can take the key out while the moter is running.the steering column is sloppy as well.after i put the battery back in the vehicle i tried to start it and it fired right up.so far everything seems fine but i'm afraid to drive it anywhere.could this be a loose wire in the column? - murfdog
You will need a wiring diagram and good voltmeter. At the ignition switch one wire will be "live all the time", one will become live in accessory position, one will be live only in the starter position, and one will be live in the run position. See if you loose power to any of the wires as you wiggle the key in the ignition. Check that your battery connections are clean tight and secure. - patrick mannion
Is the problem the injection pump? My '99 diesel had stalling issues like so many people; there was a special policy regarding it and GM ultimately replaced it. Stopped me from stalling as I was driving down the highway at any speed. - Visitor
Hi,you mentioned that your steering colum is sloppy.If your steering wheel is loose at the point where it tilts you will run into many problems including starting issues. The rod that connects your key switch to your ignition switch must stay straight and adjusted and when the colum is loose the adjustment will be incorrect which can also cause electrical problems by possibly pulling out wires from harness connections.If this is the issue you must take your steering colum apart and thighten the three torx head capscrews fasteners that secure the two steering colum sections together where it pivots.There are some special tools required to do this but they can be purchased at most auto parts stores.The most common cause of steering colums becoming loose is people grabbing hold of the steering wheel as they pull themselves into the cab of the truck. If you do this procedure make sure to apply some blue loc-tite to the threads of the torx capscrews to keep them from backing out and becoming loose again. - Visitor