Question about 1988 Dodge Dakota

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My truck won't start, it turns over but doesn't spark

My truck will not start. it turns over but can't seem to get the spark it needs to start. my husband giggles some wires sometimes and it works, but for the past week it won't start at all. We have changed all sorts of parts but my husband thinks it's the wiring harness. they don't sell wiring harness' anymore thru the dealer so what do i do? how do i troubleshoot this stupid problem??????please help

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First check the ignition fuse (under the dash) if it is blown that indicates a short or excessive resistance (read... corrosion) in the wiring or a bad ground (again on a vehicle that old, probably corrosion)... If fuse is good use a meter or test light to check for power at the coil positive terminal...if this is good look at high tension side (Coil wire to distributor , under cap, rotor, plug wires) if no power to coil (or intermittent with "wiggling wires") then start removing wires from coil terminals (one at a time to keep track!) and cleaning them till they are bright, then replacing them... also check the ground straps (from engine or trans to battery negative terminal and from body to battery negative)... if the problem IS corrosion this should help.. another possibility is is a weak coil, if all of the above fails try another coil... hope this helps... ;-)

Posted on Apr 17, 2009

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Posted on Jan 02, 2017

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