Hard to start from hot or cold, imobaliser fitted. Once started runs fine, but takes 5 mins+ and backfires
You should have the fuel system tested , fuel pump pressure an flow test . an static fuel pressure . There is a check valve in the fuel line inside the fuel pump module , this could be bad . You could try just turning the key to run, not start 4 or 5 times to see if this adverts this problem . This will build fuel pressure up , you see when you turn the key on the PCM/ECM -engine computer energizes the fuel pump for two seconds building fuel pressure .
i have 2007 gmc yukon denali xl.Rims were stolen so it was sitting on ground we went from 20" rims to 16"Now the car won't go forward or reverse.Trani damage perhaps?
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