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Old 09-11-2006, 04:14 PM
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cb88
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No spark when cranking until I let off the key?

Hey all, I have a 1988 Bronco II 2.9 5 speed 4x4. Ive had it for about 2 years and the other day I put on a new cap and rotor and plug wires. I also cleaned the IAC. After that it ran fine for about a day and then I made a 2 hr trip and cut it off at a store. When i tried to recrank it, it just turned over and over and over for about 10 minutes and then it finally just cranked and ran like nothing was wrong. Its done the same thing twice since then (past 3 days) . Yesterday when it did it, I pulled the coil wire and put a "spark tester" plug in the wire and tried cranking it. It only sparks right at the end when u quit cranking, itll spark 1 maybe 2 times. Itll crank if you just do a few short bursts of turning the ignition key to on. Any ideas on what else to check, or what the problem probaly is? At first i was thinking it was the coil or module, but its only when cranking so maybe an ignition key problem or relay between there? Thanks in advance