Question about Chevrolet Camaro

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97 camero z28 will not start is getting fuel but no fire to plugs

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  • wjjhd May 30, 2009

    I CAN NOT FIND THE COIL THE PLUG WIRES GO TO SOMETHING ON THE SIDE OF THE ENGINE ON EACH SIDE FRONT BOTTOM

  • wjjhd May 30, 2009

    IT LOOKS LIKE YOU HAVE TO REMOVE THE CRANK SHAFT PULLY TO GET THE COVER OFF IS THIS RIGHT

  • wjjhd May 30, 2009

    NO THE PLUG WIRES DO NOT GO INTO THE CRANKSHAFT PULLEY THEY GO INTO SOMETHING BEHIND THE CRANKSHAFT PULLEY

  • wjjhd May 30, 2009

    I DID NOT RECEIVE A RESPONCE,

  • wjjhd May 30, 2009

    I DID NOT RECEIVE A RESPONSE, SHOULD I MOVE ON TO A NEW EXPERT?

  • wjjhd May 30, 2009

    GARY 1121 ,DID NOT KNOW THE ANSWER TO MY ? OR IF HE DID HE DID NOT RESPOND.MAYBE YOU CAN HELP ME.I HAVE A 1997 CAMERO IT WILL NOT START,I AM GETTING FUEL BUT NO FIRE TO THE PLUGS,WHEN I TRACED THE PLUG WIRES THEY WENT INTO SOMETHING BEHIND THE CRANK SHAFT PULLEY.I PRESOME IT IS THE COILS BUT I DONT KNOW I HAVE NEVER SEEN THIS BEFORE.AND IT LOOKS LIKE YOU HAVE TO PULL THE CRANKSHAFT PULLEY OFF TO GET TO IT.CAN YOU TELL ME WHAT THIS IS?

  • wjjhd May 30, 2009

    DO YOU HAVE TO PULL THE CRANKSHAFT PULLEY OFF TO GET TYO THE PLATE

  • wjjhd May 30, 2009

    YES I AM RUNNING A 5.7 V8

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  • 6,784 Answers

OK, the actual ignition control module that i recommended inspecting is located Under hood, center, upper engine area, mounted on upper front driver side of engine.



The 3.4L and 3.8L engines' distributorless ignition system uses a "waste spark'' method of spark distribution. Each cylinder is paired with its opposing cylinder in the firing order, so that one cylinder on the compression stroke fires simultaneously with an opposing cylinder which is on the exhaust stroke. Since the cylinder on the exhaust stroke requires little of the available voltage to fire its plug, most of the voltage is used to fire the cylinder on compression. The process reverses when the cylinders reverse roles.
Components of this system include 3 ignition coils, ignition coil module, crankshaft position sensor assembly, camshaft position sensor assembly, crankshaft reluctor ring, crankshaft balancer assembly with interrupted ring, and the Engine Control Module (ECM) or Powertrain Control Module (PCM). The coil pack consists of three separate, interchangeable, ignition coils. The ignition coil module or Ignition Control Module (ICM) is located above the power steering pump assembly and is connected to the ECM/PCM. The ignition coil module controls the primary circuit to the coils, turning them on and off.
A magnetic crankshaft position sensor assembly is used in this system. The sensor protrudes from the engine block, within approximately 0.050 in. (1.27mm) of the crankshaft reluctor. The reluctor is a special wheel cast onto the crankshaft assembly that has seven machined slots, six of which are equally spaced 60 degrees apart, and the seventh is spaced 10 degrees from one of the other slots. As the reluctor rotates with the crankshaft, the slots change the magnetic field of the crankshaft position sensor assembly, causing an induced voltage pulse. By counting the time between pulses, the ignition control module can recognize the pulse of the seventh slot. Based on this pulse caused by the seventh slot, the ignition control module sends the reference signal to the ECM/PCM to calculate crankshaft position, used to fire coils in correct sequence, and engine speed.
The camshaft position sensor assembly is located on the engine block behind the water pump assembly, near the lower intake manifold assembly. The camshaft position sensor assembly is used for timing the injectors for sequential fuel injection. This sensor is a hall-effect switch.
The signal crankshaft position sensor assembly inserts through the right side of the engine block at mid-engine, near the crankshaft reluctor ring. Notches in the crankshaft reluctor ring trigger the magnetic pickup sensor to provide timing information to the ECM/PCM. This is a hall-effect sensor.
Base ignition timing is preset when the engine is manufactured, and no adjustment is possible. Timing advance and ****** are accomplished through the ECM/PCM with ignition control and knock sensor systems.





SPARK TEST

Because of the high voltage produced by the distributorless ignition system and to avoid overstressing the coil/module, an inductive or neon type spark tester should be used to check for spark. These tools are commonly available at most auto parts stores. Follow the tool manufacturer's instructions to test for spark.
IGNITION COILS

  1. Remove the ignition coil(s).
  2. Using an ohmmeter, check the resistance between the primary terminals on the underside of the coil. The resistance should be 0.50-0.90 ohms.
  3. Check the resistance between the secondary terminals. It should be 5000-10,000 ohms.
  4. If the coil failed either test, replace the coil.




  5. Let me know if you are running the 5.7L V8




Posted on May 30, 2009

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  • Michael Masters
    Michael Masters May 30, 2009

    i need to be sure of the size of this engine first and no. the crank shaft should not have to be released. I need to know the size of the engine to be sure. Is it the V6 or V8?

  • Michael Masters
    Michael Masters May 30, 2009

    Ok, use the procedure i posted to test the coils. replace the coils if defective. if the coils are fine, you will need to move the the ICM, which is located Under hood, center, upper engine area, mounted on





    upper front driver side of engine.(not behind the crankshaft).

    Now, if the ICM checks out OK, you will need ot run a teat on the Crank shaft position sensor. if this device is damaged ro the housing is fualty(bad wires), it will nto alloe poper spark. It is located Under hood, center, front engine area, rear of





    crankshaft pulley, mounted in engine block.

    Now, if all the above checks out, you will need to replace the Engine Control Module(ECM/PCM). it has failed in this case. when the ECM fails, you will not gety spark.


  • Michael Masters
    Michael Masters May 30, 2009

    If the check engine light is on, you will need pullout those codes asap. this could be useful.

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  • 332 Answers

Have you checked the coil it sends the power to the distributor or even the coil wire, you have a coil pack in the top of the distributor take it out and see if there is a burnt spot on the side of it if so change it

Posted on May 30, 2009

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  • gary miller
    gary miller May 30, 2009

    those are the coil packs there should be one for each side, it should be help in a bracket that takes a 1/4 inch nut drive to take it apart, follw the spark plug wire to where the connect away from the spark plugs they are pluged into the coils

  • gary miller
    gary miller May 30, 2009

    your spark plug wires go into the crankshaft pulley?? this is not how I remember it to be I will get right back to you

  • gary miller
    gary miller May 30, 2009

    I was trying to write you back but it wouldn't let me i have a page to send to you but i am not a computer person so as soon as my wife gets here I will senf it to you

  • gary miller
    gary miller May 30, 2009

    yes you do have to remove the cover and the coil pack is behind that plate,,,,

  • gary miller
    gary miller May 30, 2009

    it has coil packs that are behind the cover plate follow the wire and take off the cover and replace the coil packs and you will be done and running

  • gary miller
    gary miller May 30, 2009

    as i said sorry i couldn't get back on the cuputer to answer you there fixya web site wouldn't let me in, I am here now and es you have to take the cover off and the coil packs are behind it, i have a freind that races grand nationals he has the z28 motor in one of his cars and confermed that they are behing the plate

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