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View Full Version : 5.0 loosing spark



1natehanson
09-12-2010, 11:36 AM
Hello. I have a 1990 fox 5.0 and when the vaccum advance kicks in it looses spark. Idles fine and runs great at wot. Vaccum line disconnected from advance and does not loose spark. Any ideas? I'm thinking distributor but it doesn't make sense to me.

blizzard
09-12-2010, 02:09 PM
TPS? just a guess, but i'd test it. :beer:

1natehanson
09-12-2010, 02:33 PM
No tps its carberated. That's exactly what it feels like though

mustang50lx
09-12-2010, 03:29 PM
Wire for the pick up coil inside the distributor is probably rubbing or losing contact when the advance moves.

1natehanson
09-12-2010, 04:31 PM
The wire must be broken right where it goes into the pickup coil. when checking with a meter it goes open when i move the advance manualy. thankyou both for your input.