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Posted on Sep 15, 2012
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Engine has eletric problem

The sparkplug has no power

1 Answer

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  • Expert 60 Answers
  • Posted on Aug 25, 2013
Anonymous
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Joined: Aug 09, 2013
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Have the ignition module & coil packs checked at an auto parts store if that is not the problem check the crankshaft sensor & camshaft sensor

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1answer

Welli have towncontry i change computer but dont start and the inyector dont have electricity to star the car

Is the computer powered up? Does your check engine light come on when you turn the key to on?
If that's o.k., check fuel pump operation. Do you hear the pump come on to prime the fuel system when you first turn the key to on? It should turn on for about 2 seconds, and then stop again until the engine is being cranked, at which time the pump comes back on. You can't hear the pump when engine is cranking or running, but you could hear it first come on to prime the system. There may be a schrader valve-a test port- on top of engine on the fuel rail. If you find it, take the cap off, and press down the valve-gas should shoot up if the pump is working and getting fuel to the engine.
Now if the computer is powered and the pump is getting gas to the engine, and still no start, you need to check your ignition system by checking for spark at one of the sparkplugs. Pull a plug wire off a plug, pull the sparkplug out, reattach the plug wire to the plug, and lay the sparkplug on a metal part of the engine, so the sparkplug threads are touching metal (grounding it). Now have someone crank the engine over while you watch the plug for a strong blue spark there. You need to see a blue, snapping spark to know your ignition system is good. An orange spark is not good-too weak. If no spark, or not consistent, you have a problem in the ignition system, and will have to diagnose and fix that.
If all is good so far, you may need to check the fuel injection system. Start by pulling one injector connector off, and check for power on one of the two wires going to the injector (the other wire is the injector ground wire), with the key in the on position. If no power to the injector with key on, the injector drive circuit has failed. If one wire does have power, post back to me for how to test the injector ground circuit-very easy with a testlight.
Good luck.
0helpful
2answers

What is the spacing between the spark plugs?

You can find almost all the information you need with free registration at www.autozone.com Registration gives you free access to a variety of DIY vehicle diagnostics and repair manuals.
1helpful
1answer

I have a 94 Pontiac Grand Am SE 5 speed standard with the 2.3L SOHC Quad 4-138 4 cyl engine. It idles fine; but when you go and shift the car bucks and has little power. Better be going 30 mph before...

This sounds like it may be misfiring, the quad four engine is famous for misfiring theres a coil cover under the top plate where the sparkplugs go, if you remove the 4 bolts and pull it up you will see the sparkplugs and that cover will contain coils and coil cover and boots, i would replace the sparkplugs and the coil cover and sparkplug boots, heres some pictures of the parts, this is where i would start it a tune up, and also check air filter and replace fuel filter,johnjohn2_31.jpgjohnjohn2_32.jpg
0helpful
1answer

I own a toyota gli '93 and i was taught that to check if your sparkplugs are ok, you should try unplugging each sparkplug by pulling out the tension wire attached. If the engine shake, the your sparkplug...

If you remove the a plug wire and the spark has no where to go, it will find the weakest spot. Sounds like the spark found a weak spot in your distributor, it either found a ground path through the rotor or it fried the coil, in any case its going to be something inside the distributor. By the way pulling the wires with the engine running does not tell you the condition of the spark plugs it only tell you if the cylinders are contributing any power.
0helpful
1answer

Had moter replaced now eletrical wrong fuiel hand

the engine ground wires to the body are not where thet are suppose to be and need to be regrounded also check the battery to body ground on the fender
2helpful
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Eletric fan runs when focus 16 tdci is turned off 2006 model

This is normal for a car that has an electric fan system for the cooling system. There is a sensor that operates based on engine temp. When you turn your vehicle off the coolant stops flowing and the water temp goes up in the engine block. The electric fan may run for approximately two or so minutes.
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