Better answer-Change the oil to synthetic oil! The knock you are hearing is the piston skirts slapping the sleeve due to dry start! Mine did the same thing with conventional oil!
Your engine knocks when you cold start it because the motor oil is not viscous enough to lubricate crank bearings, cylinders, etc. warm it up first, engine will last alot longer
check fuel pump it could have come loose if not its bad replace
A 2000 Silverado 5.3 Vortec that is hard to start and misses on one side of the engine might have a problem with the coil pack or the spark plugs. It could also mean that the block is cracked if the engine is prone to overheating.
There are many different signs that will tell you that your Honda P1457 will need to be checked. Some of the more common are when the engine knocks and you start losing power.
Most likely a bad oil sending unit
Turn the key on then push the gas pedal to the floor 3 times. Then turn key off and then start engine.
1969... When they changed to the large journal crankshaft and engine block.
Had a 93 Silverado that did the same thing. Had the electronic module replaced and all was well.
check all fuses. there are 2 fuses that can prevent engine from firing if they are blown
If your 2003 Silverado is lurching or jerking when you start it the most common issue is the fuel pump.
Turn key on ,do not start, push gas pedal all the way to the floor 3 times, turn key off and then start engine.
If an engine has proper compression, fuel/air delivered in the right ratio and the ignition spark is delivered at the right time when the engine is turned by the starter, the engine HAS to run... no choice. Go back to basics. If you've worked on something recently and the engine ran BEFORE you worked on it, be suspicious of what has changed. It could be as simple as connecting the plug wires wrong.