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68gmsee · 03-06-2017, 10:48 AM

I'm sure you've checked to insure flooding is not the problem by checking for exhaust smoke when failure occurs but the ignition problem is somewhat harder to detect if it's intermittent.

The ignition problems could be a loose wire or connector terminal at the starter, internal ignition switch wiring (burned/corroded/loose) and even defective battery cables. The battery cables can corrode internally and the corrosion is not visible on the outside.

The things to check on the distributor is also loose corroded connectors or even a faulty module.

I don't know if your engine has the ESC (electronic spark control module) but it's also been known to cause intermittent stalling, rough idling, etc.

03-06-2017, 10:48 AM	#16
68gmsee Active Member Join Date: Jul 2007 Location: Centrally located between Houston, Austin and Waco. BCS area. Posts: 7,947	Re: 305 engine issues I'm sure you've checked to insure flooding is not the problem by checking for exhaust smoke when failure occurs but the ignition problem is somewhat harder to detect if it's intermittent. The ignition problems could be a loose wire or connector terminal at the starter, internal ignition switch wiring (burned/corroded/loose) and even defective battery cables. The battery cables can corrode internally and the corrosion is not visible on the outside. The things to check on the distributor is also loose corroded connectors or even a faulty module. I don't know if your engine has the ESC (electronic spark control module) but it's also been known to cause intermittent stalling, rough idling, etc. __________________ 68 GMC 250/3 speed Saginaw p/b p/s 69 Chevy 350/350 currently in pieces still lookin for a cab 06 Trailblazer I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive...