Question about 1993 GMC Jimmy
1993 4.3L CPI "W" coded V6. Idles nicely, upon revving or acceleration the engine stumbles and backfires. Installed new distributor ignition module
Check the distributor shaft. They have a history of developing finite cracks that causes the condition your describing. Let me know if I can help you with any other info.
Posted on Jun 01, 2009
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Posted on Jan 02, 2017
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