2003 GMC Yukon "spark plug change" Questions

...Want to put 8 new spark plugs in and change the O2 sensors. Am I wasting my time and money not at all and when changing your spark plug there is no reason not changing the spark plug wires

...spark plug, the one on the left by the firewall had oil on the spark plug thread. why was that? help me understand. Nothing yet. That could easily be melted grease from the engine compartment or ...

spark plug covers back in to place Hi, I have a 2003 GMC Yukon and I'm trying to change the spark plugs. The spark plugs have some kind of metal tube over them that comes out when I pull off the spark

...spark or start Change every sparking park and. No start I put gas in choke and doesn't even act like it going to start I get no spark out of plugs or ignition I getting a little power out of the wire ...

...spark plug wires has been changed already. Soon you have to replace the timing chain too. The most important thing to do is to narrow the area of troubleshooting. This can be done by excluding things ...

...spark plug or wire * Faulty coil (pack) * Faulty oxygen sensor(s) * Faulty fuel injector * Burned exhaust valve * Faulty catalytic converter(s) * Running out of fuel * Poor compression * Defective ...

...spark plug wires areoften also replaced; these wires take electricity from the distributor and giveit to the spark plugs to make the sparks. Air Filter Change * Air filters canvary in shape and , but ...

the fuel line to the injectors and crank to see if fuel is present. If fuel pressure is present, check for spark (Ensure no spilt fuel is around) by cranking with plug lead shorted off the spark plug

...spark plugs, checked the plug wires, changed the fuel filter, PVC, air filter, and ran through fuel injector cleaner through it. It's still doing it. Any suggestions would be appreciated. Have you ...

...cant b defective When the plugs were installed someone could have cracked the spark plug putting it in. It often happens with the rear plugs because they force you to put them in at an awkward