Questions & Answers for: spark plug diagnosis

...spark plug wire and see if there is any spark even coming to the plugs. If there isn't, you will need a qualified Tech to look at the problem...sometimes it is worth the price to have them diagnosis ...

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...spark plug wire and check to see that you have good spark reaching the spark plugs. Good spark will eliminate the entire spark control system. Only if you have good spark should you suspect a ...

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Question about 1999 Crown Victoria

1 Answer

...spark plug, attach the clip to ground and crank the engine to check for spark This spark tester has an adjustable air-gap for measuring spark strength and testing different voltage ignition systems ...

...spark plug in it and started the car. The spark plug was firing. I pulled the new spark plug out and noticed a very small amount of moisture on the tip. I cleaned it and checked fire with the coil ...

...spark plugs, new fuel filter, timing belt and crankshaft sensor also changed and still nothing out turns over just won't fire up.I don't know what else to do as I can't afford to keep paying the ...

spark plugs. If not you need iginition system diagnosis. If so you may have dirty injectors allowing them to leak or a bad fuel pressure regulator allowing too much fuel pressure causing the engine to

...spark plug/s, wire/s, distributor cap, camshaft, valve/s, piston/s, gasket/s, vacuum leak, fuel injector/s among other things. Some diagnosis will be needed. Check the most obvious first: plug wires, ...

the problem, new spark plugs and filters Change plugs and filters and oil What did the old spark plugs look like? This is the first place to start your diagnosis. This does not sound like a motorcycle

Question about 2002 Sierra 1500

1 Answer

...Spark Plug Inspection in Engine Electrical. ?€¢ Determine the cause of the fouling before replacing the spark plugs if the spark plugs are gas, coolant, or oil fouled. Refer to DTC P0172 or P0175 for ...

spark plugs. If in doubt replace them all. Do the same for the plug leads attached to the plugs. Next you will have to check the igniton coils. On you vehicle i think the plug leads and ignition coils

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