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!
I bought a 1998 f-150 with a blown 4.2. I bought a remanufactured 4.2, put it in, etc...
this is my problem - when I connect the battery the interior components; radio, idiot lights, fan, horn, all work but the engine won't crank. I'm trying to prime the oil pump but can't. I blow a 25 amp fuse (the one located under the hood) whenever I connect the positive cable to the battery.
I took my multimeter, set it to "tone", and touched the negative to the negative post of the battery (with the cable connected) and the positive to the positive cable, (NOT on the battery) and I got a tone. So somewhere I have a positive grounding out to something.
Have anyone experienced this? Am I overlooking something obvious with my connections?
It used to be a Haz Mat fleet vehicle out of North Carolina. I bought it from a friend whose son-in-law works for Haz mat.
The exact reason why the motor blew is beyond me, but it did throw a rod through the oil pan. (a hole the size of your index finger)
I bought a remanufactered engine, (long block) from Green Leaf Motors out of Monroe Georgia.
It's wired to the starter like so: ground from the battery to the ground bolt on the starter, positive hooked up to it's post on the selenoid. When I connect the cables to the battery it blows a 25amp fuse that's located on the right side of the engine bay in the fuse box located there.
I've got a Haynes repair manual, Chiltons FYI online manual, and the starter is hooked up per their instructions.
I'm at a lost here. Any ideas? Perhaps there's a chasis ground I'm missing? I know theres a ground wire connected to the frame by the right front tire that goes to the starter. Any others? There's also a ground wire connected to the back of the engine bays wall, (just above left of the intake), grounded to the wall) that I have no idea where it goes. Any more?
Last edited by plankofwood64; 09-11-2007 at 06:12 AM.
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.