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Anonymous Posted on Jul 28, 2011

Doesn't get spark when cranking

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  • Master 506 Answers
  • Posted on Jul 28, 2011
Anonymous
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Joined: Jul 13, 2011
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Yo! Your battery doesnt have enough power to crank your engine.that has got to be a problem with your alternator.it is meant to charge your battery.please replace the alternator so it will charge your battery

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0helpful
1answer

I have a '96 mk1 cti, replaced the coil and module and the car still doesn't spark, the module gets warm when cranking so i also cleaned the ground wires, what else should i check?

Try your CRANK SHAFT SENSOR or CAM SHAFT SENSOR.

If there is no Reference ZERO signal, then the car will not spark or SPARK ONCE and then nothing.

Put a Timing Light on the Car and then turn it over, if you get a single light, then it is one of those 2 sensors (Probably the CRANKSHAFT)
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My 1996 F450 7.3 diesel engine crank over but won't start, I have change the cam sensor, but still doesn't start

First, check the condition and operation of the following:

1) Spark plugs, leads and coil(s)
2) Air filter
3) Fuel filter and pump operation.
0helpful
1answer

Mechanical

Before you threw a bunch of parts at it maybe you should at least see if it has spark. If it doesn't have spark then the crank sensor and coil pack would be appropriate. If it is not getting fuel then the fuel pump, filter, etc. would be the way to go. So see if there is spark, do this by pulling a spark plug and see if there is spark out the end with it plugged into the wire and cranking it over. If there is spark put all this back together and squirt some fuel into the throttle body while cranking it over, if it tries to start but doesn't try to start on its own without squirting fuel in it then the fuel pump is bad. How many miles on it? Possibly the cam timing is off. Maybe take a compression check and see if the cam is out of time.
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2003 trailblazer 5.3 no fire change cam & crank sensor

if its got no fire and you changed your cam and crank sensor try replacing the ignition Coil then if it doesn't work replace the distributor cap and spark plugs and wires if that doesn't work then take the distributor cap off and replace the distributor Rotor if it still doesn't work replace the wires to the rotor if still i dosent work check your fuses but i assure you that should fix it.
0helpful
1answer

Cranks but wont start

Check for spark and gas. Try to add gas to the intake. If it starts, there is a fuel delivery problem. If it doesn't, then there may be no spark which you can test using a spark tester.
If there is no spark, the crank sensor circuit may be at fault.
0helpful
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The engine turns over but the motor will not start. The van was running fine when it was cut off. It doesn't seem to be getting gas.

It's very likely your fuel pump has failed. Have somebody thump on the fuel tank while you're cranking the engine and see if it starts. If it does, replace the fuel pump. Otherwise get your fuel pressure checked, and check for spark. If no spark, check to make sure the distributor is turning(if applicable) If a 3.3 motor with no spark, suspect the crank sensor or cam sensor. Crank sensor is much easier to replace if experimenting.
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1answer

Getting no spark. a recent code mentioned the crank sensor and o2 sensor. the o2 sensor was replaced and no new code has shown but it only ran once since then. would like to know where the crank sensor...

O2 sensor won't cause a no spark no start condition but the crank sensor will. most time bad crank sensor will not set a code if engine doesn't start. usually set code on o drop while driving. I would check connection at sensor if good then replace sensor.
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I have no spark or fuel going to engine, will crank, but not start. help

check your crank sensor, if bad it will crank but computer doesn't see it so it shuts down fuel and spark
1helpful
1answer

My car cranks up, but will not turn over...??

Hello and welcome to FixYa!

As a first course of action, I strongly suggest that you pull out one spark plug and connect on plug wire. You will need a little help here, put the spark plug tip on the engine and have it cranked by your helper. If there's no current then you definitely have a bad coil pack.

The coil pack gives current to the plugs to burn fuel. Your coil pack can be faulty that's why it only cranks but doesn't turn. Have it replaced and you'll be good.

Hope this helps and thank you for using FixYa! Have a good one!
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