Explorer, Sport Trac, Mountaineer & Aviator1991-1994, 1995-2001, 2002-2005, 2006-2010 Ford Explorer
Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.
You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!
Suspect an electrical problem. Running down the freeway ~75mph and it was like I switched off the ignition key. Still had battery power, RPM went to zero, Check Eng & Batt light came on, radio still playing Kicks. Coasted over to the shoulder. No oil underneath and it turns over fine but doesn't kick off. Fuel pump still primes. Replaced EEC Power and Fuel Pump Relay. Started momentarily, but cut off again. Tach doesn't move when cranking. Poked a spark plug into one of the leads--no spark. What next?
I see from your profile it's a 91, and I'd guess it's a 4.0L pushrod engine with the DIS ignition. With the CEL light on, the ECA should have set a code, and that would be a good place to start. Last week I just read about the tach and ignition, but can't for the life of me remember what it said, and I can't find the info again. I believe you should have a tach signal during cranking, and that's your best clue for troubleshooting this. If you find the cause of the no-tach problem, I believe you'll have fixed your problem. Hope this little bit helps...
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.