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Hi everyone.
I have a mystery issue for you if I may. I have been trying to figure this one out for 2 months on my company truck.
I have a 99 yukon slt 5.7, when warm it starts but if the temp gets to 0 cranks like it wants to fly and no fuel. I have given complete tune up, fuel filter, all 02 sensors, mas, crank sensor in front and coolant temp sensor, fuel pump and spider injectors. but always comes back and cold no start. when it runs it is smooth. mech has no clue. keeps well could be this and yep more money so i am doing this myself with help hopefully. lol. new ignition coil also.
at this point i am lost and looking at a 2003 yukon as a second vehicle but if anyone has come across this i would appreciate any direction. thanks and have a great day.
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