Having problems with your 1991 Ford F250 ?
W to check spark at coil 1991 f250 - 1991 Ford F250
Get a modified sparkj plug(there cheap,mine was 7$ or so))remove the coil wire from your distibuter and replace with test plug. and then ground the plug to the block,the test plug has a clip and its still a pain in the *** so trust me you will be haopy you spent a couple bucks, have some on e crank the engine usin g the ignition switchand check for spark,either at the test plug or the terminal forcolil wire.if there is spark you proballly have a bad cap,i usually replace both cap and rotor if im gonna do it,hope this helps ,if no spark still post again and ill give yhou the next i nstfruction out of the book,!
Repair Help & Product Troubleshooting for 1991 Ford F250
Tips for a great answer:- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.