01 Express 2500 rough start in park

creepvancreepvan Member Posts: 1
edited November 2017 in Chevrolet
I have an 01 Express 2500 . In the morning I start the van and it idles very rough to were it back fires then stalls. If i put it in Neutral, starts and idles fine . Lately it been stalling when im driving. After its warm ill be driving and when i slow down it stalls. Recent repairs with in the year. Fuel pump, stat, Idle control valve, Crankshaft position sensor and air filter. Any ideas?


  • eliaselias Member Posts: 2,209
    O2 sensor(s) need swap? Or that new idle control valve is DOA or wired incorrectly, missing a connection ?
  • Mr_ShiftrightMr_Shiftright Member Posts: 64,481
    Last tune up since X miles?
  • rickdonrickdon Member Posts: 123
    Try to check the MAF, EGR and intake manifold also.
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