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Cranks but no spark

Rotor turns but no spark ow do you test a crank sensor

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I HAVE A 2000 CHEVY S10 4.3 ENGINE coil sparks but no spark from distributor. can the cam sensor cause this problem?


If you take coil wire loose from distributor cap and hold close to engine ground, engine cranking, does a spark jump? If it does, make sure rotor turns when you crank it. The pink wire at the coil goes hot with key on, that is primary voltage, use a test light, is it hot? That voltage comes from ecm fuse1--15 amp, check voltage with key on.
If sensor issue, my first thought would be the crank sensor. Just my opinion.
s10 ignition coil-o5ackhig0xzyenisedck4g1t-3-0.jpg

Feb 27, 2017 | 2000 Chevrolet S-10

1 Answer

How to test a crank angle sensor in 86 Nissan hardbody


Sensor detects engine rpm, and piston position. It is integral with the distributor, not replaced separately.
Testing the sensor requires complete testing of the ignition system. Use a spark tester to check for bright,. blue spark. This is called secondary spark test. If weak or no spark, test the ignition coil for proper specs of primary and secondary resistance. If coil is good but no spark, suspect the crank angle sensor. My manual gives no further information on testing the sensor. It contains a light emitting diode and a photo diode. The lights are used to show up the slots in the rotor disc that has 360 slits in it.
Good luck.

Jan 20, 2017 | Nissan Cars & Trucks

1 Answer

I have a 1996 Toyota Corolla that has no spark. We have checked. Cap, rotor, coil, cam sensor, ignitor, all ok, tested crank sensor and it was bad so replaced it and still cranks with no spark. Checked...


In most cases the crank sensor generates AC voltage when the crankshaft is moving. You would check it with a volt meter.
How did you test the crank sensor ?

May 04, 2013 | Cars & Trucks

1 Answer

My 1987 nissan maxima turns over but has no spark going to the plugs. Can this be the distributor or the crank sensor?


It does not use a crank sensor.
It could be anything in the ignition system including the coil, distributor, spark module, or even the cap and rotor. The components would need to be tested.
You check the coil for power from the key switch and look at the cap and rotor first.

Jan 10, 2013 | Nissan Maxima Cars & Trucks

1 Answer

97 pontiac firebird 5.7L HAS NO spark from optispark but has spark from coil


This engine uses a special flat cap and a standard rotor, right ? The spark comes into the cap and thru the rotor, then to the spark plugs.
Have you replaced the rotor ?
The spark can jump thru the rotor and ground thru the dist. shaft.
Depending on where you are testing for spark, the coil could also be weak and not pushing the spark to the plugs.

Jun 23, 2012 | Cars & Trucks

3 Answers

No spark


First does the rotor turn when cranking engine?? possible timing chain is out or stripped gear..are you sure it has no spark??did you verify this with a high output spark tester ? did you spray starting fluid in the tbi unit ?

Mar 23, 2012 | 2000 Chevrolet Astro

1 Answer

1989 camry turns over but won't crank also no spark at spark plugs


What about the magnetic pick up. This is the crank angle sensor reporting to the ECM and creating spark. This is known as the G and NE sensor. Just for giggles with the distbutor on cap off crank the engine and see if the rotor change postion with the engine crank. if it does the timing belt is good if it doesnt you will need a timing belt.

Feb 28, 2012 | Toyota Camry Cars & Trucks

1 Answer

I have a v6 ford probe i have no spark,i replace ingition,distibuter,rotor cap,rotor,but no spark.


Sounds like crank sensor.

The crank sensor sends a pulse to the ECU, with this information the ECU then controls the spark timing, therefore if the crank sensor is faulty you won't get a spark.

Dec 05, 2009 | 1999 Ford Taurus

2 Answers

91 jeep no spark


wd 40 your flywheel sensor plug

Sep 02, 2009 | 1996 Jeep Grand Cherokee

1 Answer

Turns over fine, I replace spark plugs, wire rotor and cap but still fires whenever it want. I performed the secondary spark test and I had no spark. Later I tryed again and starts perfectly. I don't know...


it sounds like your crank positions sensor is going bad, take it out and clean it up and then see if it works, you might have to replace it but try to clean it first.

Jul 05, 2009 | 1988 Jeep Cherokee

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