Spark plugs: Piece that produces the spark inside of the engine. It turns on the mixture of air and fuel that enters into the cylinders.
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It is made up of an electrode (the tip where the spark burns), a metallic nut, a white ceramic insulator, and a connector the spark plug's wire is connected to. It is tightened around the cylinder head. The engine usually has one spark plug per cylinder.
My truck won’t start, it will crank but won’t start. At first I thought it was the starter so I replaced that, still no start, replaced the battery still no start, replaced the spark plugs still no start
Fuel, air, spark needed to run. If the engine was cranking, the starter was spinning.
Check battery terminals first, any corrosion needs to be gone. Check all Fuses and relays first. Use a 9 volt battery to check relays. 85 and 86 on the relay are pos/neg
Some components to check to ensure spark:
Ignition coil,
Spark plugs,
Spark plug wires,
Distributor,
Grounds,
Crank position sensor (One of the most common)
Fuses,
Relays.
Some components to check for gas:
Fuel pump,
Fuel Rail,
Fuel Filter,
Fuses,
Relays,
Injectors
Some components to check for oxygen in the system:
Mass air flow sensor (maf),
Electronic control module (Ecm)
Exhaust leaks,
Dirty air filter,
Vacuum leaks on connectors/hoses,
Intake manifold gasket, or the intake manifold can be cracked. Positive crankcase valve (pcv)
Exhaust gas recirculator (egr) valve
Brake booster diapragm torn
Edit:
IF it was running before and it stopped running, you can kind of narrow the problem down. First ill say its a 2007... so that truck is 18 years old. Fuel filters can be clogged, fuel pump can be worm out from running on E all the time.
Hissing noise can be vacuum leak,
My 97 would start, but sometimes id have to gas/brake to keep it running. Found a broken vacuum line connector too. High rpm idle can indicate certain things too.
Making a list of all things you know are wrong with your vehicle can help you. I made a list of all the things i know are broken on my truck.
Then started some research on air/fuel/spark
The circled symptoms on the bottom are the ones i know i have
I have a evap issue it will pop a code say evap leak loose gas cap bought a new one it stills says it the it will pop up a 02 high voltage bank 2 senor 2 evaporative emission system leak detected gross leak no flow i do have the hemi tick because my driver side manifold cracks its bolt and i recently have fuild come out of spark plug changed spark plugs and havent delt with thsat since but it will devour gas mid grade and high grade please help its my grandfathers truck hes no longer here and im trying to keep it alive
Check battery terminals first, any corrosion needs to be gone. Check all Fuses and relays first. Use a 9 volt battery to check relays. 85 and 86 on the relay are pos/neg
Some components to check to ensure spark:
Ignition coil,
Spark plugs,
Spark plug wires,
Distributor,
Grounds,
Crank position sensor (One of the most common)
Fuses,
Relays.
Some components to check for gas:
Fuel pump,
Fuel Rail,
Fuel Filter,
Fuses,
Relays,
Injectors
Some components to check for oxygen in the system:
Mass air flow sensor (maf),
Electronic control module (Ecm)
Exhaust leaks,
Dirty air filter,
Vacuum leaks on connectors/hoses,
Intake manifold gasket, or the intake manifold can be cracked. Positive crankcase valve (pcv)
Exhaust gas recirculator (egr) valve
Brake booster diapragm torn
Edit:
IF it was running before and it stopped running, you can kind of narrow the problem down. First ill say its a 2007... so that truck is 18 years old. Fuel filters can be clogged, fuel pump can be worm out from running on E all the time.
Hissing noise can be vacuum leak,
My 97 would start, but sometimes id have to gas/brake to keep it running. Found a broken vacuum line connector too. High rpm idle can indicate certain things too.
Then started some research on air/fuel/spark
The circled symptoms on the bottom are the ones i know i have