Having problems with your 1988 Ford F 150 ?
88 F150 Ignition is off and keys in my pocket but fuel pumps running non stop and eec relay powered just like ignition is on? brand new relays and connectors
You probably have a worn out key and tumbler assembly. Crabk your truck and see if you can remove the key while it is running. Try putting the key back in and jiggle it to see if the powered up units go off. I worked for Ford for many years and that year truck also had a problem with the ignition switch at the bootom of the steering column. That is where the rod from your ignition switch (key) goes in and turns all the accesories on. It is possible that it is sticking in the power on position. This could also be from a broke actuator rod.
Repair Help & Product Troubleshooting for 1988 Ford F 150
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