97 blazer won't start

[bluebuick91]

it won't start i have a good battery turns over good but no start.
i pulled the coil wire no spark and before i could hear the fuel pump work but not now.
almost like no juice to any thing but the dash lights work when i turn the key on just no spark.turns over fast no fire.
any help please thank you

[mike2004tct]

Sounds like it could be the ignition switch module, mounted to the steering column.
No spark, and no fuel pump prime the first 2-3 seconds the key is on is a sure sign that the switch tumblers have failed. Usually the dash lights will be out also, but numerous other glitches have shown up also.

With the key in the on position, can you shift the transmission out of park?
If not, check to see if you have voltage at the top pin of the tranny fuse ( #12 I think). If not, it's the switch module

Here's a link on how to replace it, if this is the problem.
http://www.automotiveforums.com/vbul...d.php?t=287636