intermitent no start problem

[mark2259]

just bought an 88 ranger 2.9 .On the second day i had it it died like you shut the key off ,crank but no spark.Towed it home installed tfi module on distributor,ran fine for a couple days,then died same as the first time,again no spark.Towed home disconnected positive cable and twisted inertia switch wires together,truck started and ran fine,thinking i had fixed it i started it and shut it off several times, i left the house ,it did a repeat of the dying no start.After pulling positive cable off of battery it started right up and runs fine,anyone know where to start looking to solve this.?

 

[okietheranger]

Look at the black wire comming of the negative terminal the one that has the quick disconnect. Make sure it's not broke in anyway and that it stays grounded

 

[mark2259]

will do that,thanks for the reply.