20 Most Recent 2010 Chevrolet Silverado 1500 - Page 2 Questions & Answers

Black smoke is too much fuel. My guess would be that there is an injector that is stuck open draining the pressurized fuel into a cylinder or several cylinders. And that is a considerable amount of fuel. And it would account for the hard start because there isn't any fuel being pumped into the other injectors until the pump builds the pressure back up.

if not what you meant, then google it yourself adding context words although the disambiguous page might help you figure it out

I would say your problem is still possibly brake related because of your experience with clamping the rear lines. You have changed everything out in the system except the Master Cylinder and the actual brake lines. Never heard of Master Cylinder causing symptoms you describe, but I am only a shade tree mechanic. My only other suggestion would be to verify your rear tires are properly balanced. There is very little weight in the rear of a pickup and unbalanced tire(s) would exhibit the symptom in any car, but most especially in the rear of an unloaded truck. This is a tough one! Keep us posted on your progress in getting this one fixed.

It is getting extra fuel during cranking suggest to test the fuel pressure regulator it has a small tube on it if gas is in it then the diaphragm is ruptured.

Unplug the horn If the fuses do not blow & you have battery voltage at the wire connector you took off, when pushing the horn pad, then replace the horn If the fuse blows with the horn out of the circuit, then you got to do some testing for a short in the wiring or horn button area. Personally I would start by looking at a wiring diagram, so I wasn't guessing at where I'm about to do my testing.

change the transmission oil and filter.

my car was the same way and it turned out to be a wire with cracked insulation grounding against the transmission case. to be safe, check fluid levels and condition.

sounds like a bad ground. check all the ground wires under the hood and on the engine

yes but your air bag light will stay on. but if you tack it down to a auto parts store they should be able to turn it off for you.

Buy the GM Seat Belt Driver tool fromSnap-On & remove the bolts