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My 97 blazer just quit running on me I had the ignition modulator checked and it is ok they sad and replace the pick up modulator and still not getting any spark can some one help me out.

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  • Cars & Trucks Master
  • 2,101 Answers

Have you checked the crank position sensor

Posted on Dec 30, 2012

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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SOURCE: 97 blazer cranks but wont start,when does start runs great

Your next step in diagnosis your problem should be to check for spark, you'll have to use a spark tester for this, simply removing a spark plug and looking at it WILL NOT WORK, a spark tester looks similar to a spark plug but it has about a 3/4" gap.

Another thing you should check is the voltage of the battery with a multimeter while cranking the engine, if it drops below 9.6v your computer will turn off and your injectors wont fire and neither will your plugs.
If you don't have a multimeter just try jump starting the vehicle.

Hope this helps

Posted on Feb 22, 2009

  • 1 Answer

SOURCE: 1990 FORD F 150,SPARK ON THE COIL BUT NO FROM THE DISTRIBUTOR

i had the same problem. there is a group of wires that go by the distributer and branch off to the distributer and go towards the front. when i would jiggle it the van would die. it ended up being a pinched wire.

Posted on Aug 07, 2009

rsst
  • 175 Answers

SOURCE: have a 1985 chevy blazer k5, and all of a sudden

Check the ignition switch located under the dash on the steering column. Check to see if you hear an electric switch go on when you first turn the key on.

Posted on Aug 26, 2009

fricks
  • 42 Answers

SOURCE: I have a chevy blazer 94 S10 still quit on the road.

How is it running before it quits onyou. This could be the culprit of an egr valve. How many miles on thevehicle. The egr seems to die on a certain mileage pattern. Also youcould start by cleaning the egr valve before replacing it. This couldvery well help the situation, but this is just a guess. Hope thishelps!!

Posted on Nov 28, 2009

  • 212 Answers

SOURCE: engine turns over but no spark at the plugs.

You can change pick-up coil, you need to remove distributor (mark where rotor is pointing first) Then you need to remove pin in cam gear on end of shaft to remove gear so you can remove shaft from housing. Then you can replace pick-up coil. Install in reverse. Note when removing distributor rotor will move to the right as you lift distributor out, move rotor to right of mark you made when installing distributor back in.

Posted on Feb 22, 2010

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2 Answers

Trying to locate the ignition module for chevy blazer s10 1994


Ignition module sits in the ignition distributor, remove distributor cap, there will be two elec. harness plugs, the one with two wire's is for the pick up coil, the other one is for the ignition module, just unscrew module out of distributor and install new one.

Sep 23, 2010 | 1994 Chevrolet S-10 Blazer

1 Answer

What would cause my car to not send spark to the spark plugs


The first thing is do you know when the last time was that the distributor cap, ignition rotor, and spark plug wires were changed?

There is the possibility that the ignition coil is faulty and first check to see if full battery voltage is getting to the "Pos" (+) positive side of the ignition coil when the key is in the "Run" position, and also that full battery voltage is getting through the "Pos" (+) or positive side of the ignition coil and over to the distributor ignition module, dis-connect the wire connector from the ignition module and if battery voltage is not present at the connector to the ignition module with the key in the "Run" position but it is present at the "Pos" side of the ignition coil, then the ignition coil is faulty. If battery voltage is present then check the ohms between the high tension terminal (where the coil wire goes on the ignition coil) and the "Pos" terminal on the ignition coil by first dis-connecting the wires from the ignition coil and then test with the "Neg" lead from the ohm meter in the high tension terminal on the ignition coil, and the "Pos" lead from the ohm meter to the the "Pos" terminal on the ignition coil, and the ohm reading should be between 6,000 and 30,000 ohms and if not replace the ignition coil. A faulty ignition coil can also damage the ignition module.

The ignition module and the pick-up coil/stator located inside of the distributor is what generates the signal that the ECM (Engine Control Module) uses to time and fire the fuel injectors, as well as the signal to run the fuel pump and the dwell signal timing to fire the ignition coil, and a faulty ignition module can cause any one of these systems to malfunction.

That could be a malfunction with the ignition module inside of the distributor, and you can remove the ignition module and have it tested for free at most auto part stores. If the ignition module does test out alright then the problem could still be in the pick-up coil/stator, (it can be tested using an ohm meter by dis-connecting the wire connector from the pick-up coil/stator and the ohm reading between the two wires from the pick-up coil/stator should be between 500 and 1500 ohm's, and both of the wires from the pick-up coil/stator should show an open loop or an infinite reading between each wire and ground) and if the pick-up coil/stator is found to be faulty then replace the entire distributor, or the distributor will have to be dis-assembled to install a new pick-up coil/stator.

If you do purchase a new ignition module be sure that it does come with a silicone grease or a die-electric compound because it is a heat sink and the ignition module will burn up without it.

To install the new ignition module first clean out the mounting surface inside of the distributor. Then completely coat the metal contact surface under the ignition module with a thick coat the silicone grease or die-electric compound and do not leave any of the metal contact surface of the ignition module un-coated with the silicone grease or die-electric compound, and be very careful not to over-tighten the ignition module or it will be damaged.

Let me know if you require a firing order diagram any further assistance with testing or diagnostic procedures.




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Jul 29, 2010 | 1995 Chevrolet Blazer

2 Answers

My 89 s10 will not start for days on end no matter what i do. then out of no where it will fire right up. any suggestions? fuel relay is new and so is fuel pump.


There is the possibility that the ignition coil is faulty and first check to see if full battery voltage is getting to the "Pos" (+) positive side of the ignition coil when the key is in the "Run" position, and also that full battery voltage is getting through the "Pos" (+) or positive side of the ignition coil and over to the distributor ignition module, dis-connect the wire connector from the ignition module and if battery voltage is not present at the connector to the ignition module with the key in the "Run" position but it is present at the "Pos" side of the ignition coil, then the ignition coil is faulty. If battery voltage is present then check the ohms between the high tension terminal (where the coil wire goes on the ignition coil) and the "Pos" terminal on the ignition coil by first dis-connecting the wires from the ignition coil and then test with the "Neg" lead from the ohm meter in the high tension terminal on the ignition coil, and the "Pos" lead from the ohm meter to the the "Pos" terminal on the ignition coil, and the ohm reading should be between 6,000 and 30,000 ohms and if not replace the ignition coil. A faulty ignition coil can also damage the ignition module.

The ignition module and the pick-up coil/stator located inside of the distributor is what generates the signal that the ECM (Engine Control Module) uses to time and fire the fuel injectors, as well as the signal to run the fuel pump and the dwell signal timing to fire the ignition coil. A faulty ignition module can cause any one of these systems to malfunction.

That does sound like a malfunction with the ignition module inside of the distributor, and you can remove the ignition module and have it tested for free at most auto part stores. If the ignition module does test out alright then the problem could still be in the pick-up coil/stator, (it can be tested using an ohm meter by dis-connecting the wire connector from the pick-up coil/stator and the ohm reading between the two wires from the pick-up coil/stator should be between 500 and 1500 ohm's, and both of the wires from the pick-up coil/stator should show an open loop or an infinite reading between each wire and ground) and if the pick-up coil/stator is found to be faulty then replace the entire distributor, or the distributor will have to be dis-assembled to install a new pick-up coil/stator.

If you do purchase a new ignition module be sure that it does come with a silicone grease or a die-electric compound because it is a heat sink and the ignition module will burn up without it.

To install the new ignition module first clean out the mounting surface inside of the distributor. Then completely coat the metal contact surface under the ignition module with a thick coat the silicone grease or die-electric compound and do not leave any of the metal contact surface of the ignition module un-coated with the silicone grease or die-electric compound, and be very careful not to over-tighten the ignition module or it will be damaged.

Jul 06, 2010 | 1989 Chevrolet S-10 Blazer

1 Answer

Won't start - getting fuel, maybe ignition module?


I'm assuming you have a 4.3L. I don't know if this is the case but I had my 97 Blazer, it had a really hard time starting. It ended up being the feul pressure regulator.

Nov 19, 2009 | 1997 Chevrolet Blazer

2 Answers

97 Ford F-250 - turns over but won't start


Did you check for spark? Ignition coil? Ignition control module.

Sep 02, 2009 | 1985 Ford F 250

1 Answer

97 Blazer starts hard and quits while driving


Replace the Ignition Switch, the electric part, not the lock cylinder.

Mar 02, 2009 | 1997 Chevrolet Blazer

2 Answers

1986 Chevy K1500 5.7L engine just quit running...


Check the pick up coil for resistance 750 to 1000 ohms if resistance is ok the problem is the ignition module

Feb 04, 2009 | 1986 Chevrolet Chevy

5 Answers

93 chevy s10 blazer fuel pump replacement


try yhe pickup coil or ignition module wich are both located on the distributor or the igniton coil.im going through the same thing.all i have left to try is the ignition module.if i get it ill be sure to let you know

Jan 01, 2009 | 1993 Chevrolet S-10 Blazer

1 Answer

1995 Chevy Blazer Wire Color Codes


95-97 blazer or 94-97 S-10
12volts red (there will be 2)+ ignition harness
Starter purple or yellow + ignition harness
Ignition pink + ignition harness
Second Ignition white or pink/white + ignition harness
Accessory orange + ignition harness
Power Lock lt. blue + either kick panel
Power Unlock white + either kick panel
Lock Motor gray drivers kick panel
Unlock Motor tan drivers kick panel
Parking Lights+ brown switch or rear harness
Door Trigger white - keyless module
Dome Supervision use door trigger
Trunk/Hatch Pin tied in with doors
Trunk/Hatch Release black/white + switch or keyless
Tachometer white AC ECM
Brake Wire white + at brake pedal switch
Parking Brake black at the pedal
Horn Trigger black - steering column

Jun 13, 2008 | 1995 Chevrolet Blazer

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