Check for applicable trouble codes. To check codes, yourself, at the least, you need an obd2 code reader. Some of the national brand autostores will check codes for free, if you can get the vehicle down there.
Otherwise check the basics, proper fuel pressure, spark everywhere, check idle air system. A problem at idle could be a leak of some kind, fuel--vacuum--egr, something like that.
Saturday, November 18th, 2017 AT 9:20 PM