1997 Chevrolet Astro Logo
Posted on Aug 25, 2011
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To remove the ignition coil on my 97 astro do i have to take off the whole bracket or is there a way to just get the coil off?

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  • Master 743 Answers
  • Posted on Aug 25, 2011
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The coil is riveted to the bracket. What you have to do is unbolt the throttle cable bracket the the throttle body and the coil bracket (the throttle cable bracket nut is on top the coil bracket bolt). Get thee throttle cable bracket out of the way and unbolt the coil assembly.
But if you're having an ignition issue there is the ignition module bolted next to the coil on the same bracket. You may want to take off the module and have an Autozone test it.

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  • Master 1,190 Answers
  • Posted on Aug 25, 2011
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Hello: There are two screws one on each end. Remove those two screws, pull it up. The screw heads should be 5.5 mm or 7/32

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2_11_2012_12_07_40_pm.jpg

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2_11_2012_12_08_55_pm.jpg

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2_11_2012_12_07_40_pm.jpg

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2_11_2012_12_08_55_pm.jpg

Fig.: then remove the ignition coil and mounting bracket together from the engine.

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8182f5f.jpg

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Fig. 2: Ignition coil mounting-5.0 and 5.7L engines

8dc14f4.jpg

Fig. 3: Ignition coil mounting-7.4L engines
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Bad miss

REMOVAL & INSTALLATION

See Figures 1, 2 and 3


0900c1528008ee09.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Fig. 1: Ignition coil mounting-4.3L engines
  1. Tag and unplug the wiring connectors from the coil and the coil wire.
  2. Unfasten the retainers securing the coil bracket and coil to the manifold.
  3. Remove the coil and bracket and drill out the two rivets securing the coil to the bracket.
  4. Remove the coil from the bracket.

To install:
The replacement coil kit may come with the two screws to attach the coil to the bracket. If not, you must supply your own screws.


0900c1528008ee0a.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Fig. 2: Ignition coil mounting-5.0 and 5.7L engines


0900c1528008ee0b.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Fig. 3: Ignition coil mounting-7.4L engines
  1. Fasten the coil to the bracket using two screws.
  2. Fasten the coil and bracket to the manifold. Tighten the retainers until they are snug.
  3. Engage the coil wire and the wiring connectors to the coil.

  4. Hope this helps
    Lefty64
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