My truck keeps stalling and having trouble picking up speed, idling too much at other times. sputtering and choking, once driven for a short period, it will drive fine. Replaced distributor and it ran a little better, also replaced battery recently. It's new thing is just shutting down in the middle of driving. Please let me know if you have any infomation about what it could be.
Check it out for a vaccuum leak
there are a few things it could be you said it idling to high and stalling from time to time could be fuel pump causing it to stall but not likely since it is idling high has your check engine light came on recently on my truck i had an extremely similar issue i thought maybe timing but it ended up being the coolant sensor reading that it was -40 outside causing it to dump too much fuel flooding out when starting idling up and down your issue kind of sounds similar you may chk your ignition module on the truck as well most of your local auto parts stores can chk it if you take it in to them its under the rotor on the distributor
Looking for a Used Sonoma in your area?
CarGurus has 419 nationwide Sonoma listings starting at $1,900.
Search GMC Sonoma Questions
GMC Sonoma Experts