Question about 1993 Ford Bronco

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No Spark at Distributor Cap when cranking engine

I have power with the Ignition Switch on to the Coil Unit. Don't know were to go from there. Electronic Ignition.

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Check the ecm module. if its remoted, its on the dr's side fenderwell under the hinge. otherwise its on the distributor body. check cap and rotor, and the pip sensor in the distributor. those components control the spark timing and del. also check eec relay in the box on the dr's side fender. position one is the eec relay and fuse 22 is for that circuit

Posted on Jul 21, 2009

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I have a 1999 Tahoe 8 cylinder I put in a new coil a whole new distributor distributor cap still it will not start


Pull the coil wire off the distributor cap. Put a ***** driver in it and place it close to any metal on the engine. crank over the engine. If you have spark, replace the pick up coil/ignition module in the distributor. If you have no spark. Check for power and ground at the coil plug with engine on. If it is there , replace the crank sensor.

Apr 18, 2016 | Cars & Trucks

3 Answers

Engine stop


If theres no spark from the spark plugs then you would have to replace them?

Jul 12, 2008 | 1993 Toyota Corolla

1 Answer

I have a Ford F-150 1990 Model. It doesn't seem to be getting fire to the sparkplugs. I just replaced the spark plug wires and spark plugs. What could be the problem? It is a V8.


Sounds like its a distributor. To test if its sparking at all take the plug wire and hold a screw driver and see if it arcs to the screw driver when you crank it. but heres the best way to diagnose it on your vehicle follow the following steps and let me know from there what happens.

Steps
1 Remove the spark plug wires one at a time and insert a small screw driver into the wire.(SEE WARNINGS) Be careful as you don’t want to get shocked with 60,000volts. Hold the wire so that the screw driver is 1/8” away from the engine. Have someone crank the engine and watch for a good white spark. If you have a good spark on all wires look for a problem with timing or something else. 2 Remove the distributor cap. Have someone crank the engine over with the distributor cap removed and observe if it is turning? That is if it has a distributor cap, some newer cars don’t have one. If the distributor is not turning then likely you have a broken timing belt or chain. 3 Turn the ignition key on but don't crank the engine. Locate the positive or power wire attached to the engine coil. Using a test light check for power. If this has power, then the wiring from the ignition switch is OK. 4 Locate the negative or ground wire attached to the engine coil. Using a test light check for power. This sounds strange however, one end on a good battery ground and the other on the negative wire attached to the engine coil. The test light will light up indicating power on the negative side of the coil with the key on and engine off. 5 Have someone crank the engine while watching the test light. If you observe the test light flickering when cranking the engine and you have no spark, either the coil wire is faulty of the coil is dead. Test these using an Ohm meter.# If no flickering or pulsating was observed then check continuity in all primary circuit wiring for opens. This is the negative wire back to it's source, the ignition module. 6 Check the pulse generator in the distributor if it has a distributor cap. Some newer cars don’t have one,and if it doesn’t then the ECM or computer sends signal via the crankshaft position sensor and the camshaft position sensor. 7 With the engine in non-running condition connect your A/C voltmeter to the pair of wires at the pulse generator and crank the engine. You are looking for an A/C signal that makes 4-6 volts of A/C. If this is observed then the ignition module is dead or has a bad ground. If no A/C signal is observed then you have a dead pulse generator in the distributor. 8 Know that if this part of the primary ignition tests OK then check wiring to ECM pinouts for opens. If wiring tests are OK. Suspect the ECM or computer as a last resort. edit
Warnings
Be careful as you don’t want to get shocked with 60,000volts. be careful when checking the leads for sparks with a screwdriver doing it this way can cause very expensive damage on newer engins best use a spare spark plug or a proper tester for this job
Thanks, Midwest-tek

Aug 30, 2010 | 1990 Ford F150

1 Answer

Key turns,gas pump works, does not turn


Try this...

You need to check for spark at the number 1 spark plug if no spark then it could be a few things
1.crank shaft position sensor
2. distributor cap or plugs
3. pick up coil inside distributor
4. ignition coil
5.ignition module
6.Blowen fuse check both engine fuses and inside cab fuses
7. oil pressure switch
You can pull the coil wire going into the distributor cap and check for spark there if no spark there then your problem will be from the ignition coil back

Jun 02, 2010 | 1998 Ford Taurus

2 Answers

When Car Get Warm Cut's Out Won't Start Back Up For 24 Hour's


  • First determine if it is fuel or spark
  • A weak fuel pump, plugged fuel filter, fuel tank emissions not working, no venting to tank.
  • If you find it is a spark problem follow this easy test for no spark, a weak coil will stop working when it gets hot. Crank engine with distributor cap removed, is it turning? (That is if it has a distributor cap, some newer cars don’t have one)is it turning?
    Broken timing belt or chain?

    Are you getting power to the + positive side of the coil with key on ? (the small wires running to the coil, known as the primary circuit)
    If so then wiring from the ignition switch is OK. It usually is.
    Hook your test light to the - negative side of the coil (one end on the - terminal and the other end on a ground). You should have power on the - side of the coil with the key on and engine off.
    Crank the engine while watching the test light. Get a flashing signal at the test light when cranking?
    If so and you have no spark the coil is likely dead. (don’t rely merely on resistance tests for a coil, a weak coil can test ok for resistance but still give no spark. It happens but is unusual. I learned this the hard way!)
    No flashing signal?
    Check continuity in all primary circuit wiring for opens.
    If they are good,
    It is time to check the pulse generator in the distributor. (That is if it has a distributor cap, some newer cars don’t have one, if it doesn’t then the ECM or computer sends signal via the crankshaft position sensor and the camshaft position sensor)
    With the engine in non-running condition connect your A/C voltmeter to the pair of wires at the pulse generator and crank the engine. You are looking for an A/C signal that makes 4-6 volts of A/C. Got this? If so the ignition module is dead or has a bad ground. If not (more likely) you have a dead pulse generator in the distributor.
    If you have three wires in the distributor signal wire you have a Hall effect sensor. I forget how to test that one. (Chrysler stuff)


    If this part of the primary ignition tests ok then check wiring to ECM pinouts for opens. Wiring tests ok. ECM as last resort.
    Hope this helps, cheers

Oct 02, 2009 | 1995 Hyundai Sonata

2 Answers

I have no spark i replaced the spark plugs spark wires and the coil pack and still nothing my power distribution box is fine any ideas


Crank engine with distributor cap removed, is it turning?
(That is if it has a distributor cap, some newer cars don’t have one)is it turning?
Broken timing belt or chain?

Are you getting power to the + positive side of the coil (small wires) with key on ? Hint; I use a needle pushed into the back of the plug so as not to damage the wiring.
If you have power then wiring from the ignition switch is OK. It usually is.
Hook your test light to the - negative side of the coil (one end on the - terminal and the other end on a ground). You should have power on the - side of the coil with the key on and engine off.
Crank the engine while watching the test light. Get a flashing signal at the test light when cranking?
If so and you have no spark the coil is likely dead. (don’t rely merely on resistance tests for a coil, a weak coil can test ok for resistance but still give no spark. It happens but is unusual. I learned this the hard way!)
No flashing signal?
Check continuity in all primary circuit wiring for opens.
If they are good,
It is time to check the pulse generator in the distributor. (That is if it has a distributor cap, some newer cars don’t have one, if it doesn’t then the ECM or computer sends signal via the crankshaft position sensor and the camshaft position sensor)
With the engine in non-running condition connect your A/C voltmeter to the pair of wires at the pulse generator and crank the engine. You are looking for an A/C signal that makes 4-6 volts of A/C. Got this? If so the ignition module is dead or has a bad ground. If not (more likely) you have a dead pulse generator in the distributor.
If you have three wires in the distributor signal wire you have a Hall effect sensor. I forget how to test that one. (Chrysler stuff)


If this part of the primary ignition tests ok then check wiring to ECM pinouts for opens. Wiring tests ok. ECM as last resort.
Hope this helps...........

Sep 29, 2009 | 1992 Ford Ranger

1 Answer

Hi, 94 seville, no spark, how do I check crank and cam sensors? coil pack? ignition control module? I am trying to determine why no spark. Any help in explaining how to check these items would be great....


Crank engine with distributor cap removed, is it turning?
(That is if it has a distributor cap, some newer cars don’t have one)is it turning?
Broken timing belt or chain?

Are you getting power to the + positive side of the coil (small wires) with key on ? Hint; I use a needle pushed into the back of the plug so as not to damage the wiring.
If you have power then wiring from the ignition switch is OK. It usually is.
Hook your test light to the - negative side of the coil (one end on the - terminal and the other end on a ground). You should have power on the - side of the coil with the key on and engine off.
Crank the engine while watching the test light. Get a flashing signal at the test light when cranking?
If so and you have no spark the coil is likely dead.(don’t rely merely on resistance tests for a coil, a weak coil can test ok for resistance but still give no spark.It happens but is unusual. I learned this the hard way!)
No flashing signal?
Check continuity in all primary circuit wiring for opens.
If they are good,
It is time to check the pulse generator in the distributor. (That is if it has a distributor cap, some newer cars don’t have one, if it doesn’t then the ECM or computer sends signal via the crankshaft position sensor and the camshaft position sensor)
With the engine in non-running condition connect your A/C voltmeter to the pair of wires at the pulse generator and crank the engine. You are looking for an A/C signal that makes 4-6 volts of A/C. Got this? If so the ignition module is dead or has a bad ground. If not (more likely) you have a dead pulse generator in the distributor.
If you have three wires in the distributor signal wire you have a Hall effect sensor. I forget how to test that one. (Chrysler stuff)


If this part of the primary ignition tests ok then check wiring to ECM pinouts for opens.Wiring tests ok.ECM as last resort.
Hope this helps...........

Jun 27, 2009 | 1995 Cadillac DeVille

1 Answer

No spark in my 1999 silverado 4x4 4.8 engine


Crank engine with distributor cap removed, is it turning?
(That is if it has a distributor cap, some newer cars don’t have one)is it turning?
Broken timing belt or chain?

Are you getting power to the + positive side of the coil (small wires) with key on ? Hint; I use a needle pushed into the back of the plug so as not to damage the wiring.
If you have power then wiring from the ignition switch is OK. It usually is.
Hook your test light to the - negative side of the coil (one end on the - terminal and the other end on a ground). You should have power on the - side of the coil with the key on and engine off.
Crank the engine while watching the test light. Get a flashing signal at the test light when cranking?
If so and you have no spark the coil is likely dead.(don’t rely merely on resistance tests for a coil, a weak coil can test ok for resistance but still give no spark.It happens but is unusual. I learned this the hard way!)
No flashing signal?
Check continuity in all primary circuit wiring for opens.
If they are good,
It is time to check the pulse generator in the distributor. (That is if it has a distributor cap, some newer cars don’t have one, if it doesn’t then the ECM or computer sends signal via the crankshaft position sensor and the camshaft position sensor)
With the engine in non-running condition connect your A/C voltmeter to the pair of wires at the pulse generator and crank the engine. You are looking for an A/C signal that makes 4-6 volts of A/C. Got this? If so the ignition module is dead or has a bad ground. If not (more likely) you have a dead pulse generator in the distributor.
If you have three wires in the distributor signal wire you have a Hall effect sensor. I forget how to test that one. (Chrysler stuff)


If this part of the primary ignition tests ok then check wiring to ECM pinouts for opens.Wiring tests ok.ECM as last resort.
Hope this helps...........

Jun 01, 2009 | 1999 Chevrolet Silverado 1500

1 Answer

97 saturn sl1 drove in fine, won't start just crank. no spark


Crank engine with distributor cap removed, is it turning?
(That is if it has a distributor cap, some newer cars don’t have one)is it turning?
Broken timing belt or chain?

Are you getting power to the + positive side of the coil (small wires) with key on ? Hint; I use a needle pushed into the back of the plug so as not to damage the wiring.
If you have power then wiring from the ignition switch is OK. It usually is.
Hook your test light to the - negative side of the coil (one end on the - terminal and the other end on a ground). You should have power on the - side of the coil with the key on and engine off.
Crank the engine while watching the test light. Get a flashing signal at the test light when cranking?
If so and you have no spark the coil is likely dead.(don’t rely merely on resistance tests for a coil, a weak coil can test ok for resistance but still give no spark.It happens but is unusual. I learned this the hard way!)
No flashing signal?
Check continuity in all primary circuit wiring for opens.
If they are good,
It is time to check the pulse generator in the distributor. (That is if it has a distributor cap, some newer cars don’t have one, if it doesn’t then the ECM or computer sends signal via the crankshaft position sensor and the camshaft position sensor)
With the engine in non-running condition connect your A/C voltmeter to the pair of wires at the pulse generator and crank the engine. You are looking for an A/C signal that makes 4-6 volts of A/C. Got this? If so the ignition module is dead or has a bad ground. If not (more likely) you have a dead pulse generator in the distributor.
If you have three wires in the distributor signal wire you have a Hall effect sensor. I forget how to test that one. (Chrysler stuff)


If this part of the primary ignition tests ok then check wiring to ECM pinouts for opens.Wiring tests ok.ECM as last resort.
Hope this helps...........

Jan 12, 2009 | 1997 Saturn SL

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