bad knocking and smoking
#1
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i have an 03 silverado 5.3 4x4. this afternoon when i started it, it started knocking/ticking and i cant figure out what it is. i noticed that when i give it a little gas it white smokes. what the #&!! is wrong with my truck? any help would be appreciated...
#5
CF Veteran
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If it's using coolant, but is not leaking externally, it's going into the engine. If the oil isn't milky, you may need a intake manifold gasket, with it knocking, the motor might be effed because of coolant getting into the motor.
#6
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i talked to someone yesterday and they told me these trucks have hydraulic lifters and roller rockers and they sometimes stick. also, i started the truck again and let it run and the knocking left. thats when i was told about the lifters and rockers
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