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What causes hesitation???
My car at start up hesitates now, and after it gets past the 150 degree mark it still hesitates a bit, takes a split second for it to go.
About 2 months ago, I had hesitation, chevy dealer said that it was the spark plugs, he changed them hesitation was gone. Now the hesitation is back...
Also code 33 is back, and the dealer said he fixed that too with a new maf.
And finally It seems like im running too rich...
Looks like my car will be sitting until I can send it back to the dealer for fixing...:(
You should combine all your symtoms on 1 post,That may help solve the puzzle.You may have bad fuel injector o-rings,or a vacume leak.Also sounds like weak spark.