no spark or fuel

1997 GMC JIMMY
130,000 MILES • 6 CYL • 4WD • AUTOMATIC
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TCLYNCH
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1997 Jimmy

no spark or fuel
I checked all fuses wires and distibutor position. I also changed the ingniton module(next to coil) and the other ignition component in the distributor assy.

???
Dec 6, 2010 at 3:20 AM
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RASMATAZ
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Check and test the ECM ignition fuse 20amp and the ignition control module and distributor pick-up coil
Dec 6, 2010 at 4:33 AM
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TCLYNCH
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I have checked those items. The distributor has power to it but the coil does not. there is fuel pressure but the injectors are not working. I have tested the crank sensor, ignition module, cap, rotor, wires plugs and fuses many times each.

This is a S&T series and I am starting to question the VCM.

But, the truck ran when I brought it in the garage. I changed the lower intake gasket. The repair went smooth and I followed standard procedure for such a task.

Dec 7, 2010 at 6:31 PM
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RASMATAZ
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When you say the coil does not-do you meant 2ndary spark or battery voltage to the ignition coil -positive terminal?
Dec 7, 2010 at 6:49 PM
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TCLYNCH
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Sorry, yes that is correct.
Dec 7, 2010 at 7:47 PM
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TCLYNCH
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There is no battery voltage to the ignition coil.
Dec 7, 2010 at 11:23 PM
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TCLYNCH
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As I crank the engine over the tach does not move at all, I don't know if that helps at all.
Dec 7, 2010 at 11:57 PM
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RASMATAZ
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Check and test the ECM Ign fuse 20amp-
Dec 8, 2010 at 12:07 AM