Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
What's wrong with my truck?
I have a 1998 ford f 250. What would cause the pcm power relay fuse to blow? We change it and if we try to start it then the fuse blows. Any suggestions?
3 Answers
- Jesse HowardLv 47 years agoFavorite Answer
Sounds like you have a short somewhere if it blows the fuse that fast.
- sc0rpyo_nytesLv 77 years ago
You clearly have a short. Change the PCM relay and see it would fix it. If not, its time to get a wiring diagram and start roubleshooting. Look at what circuits are connected or related with the PCM circuit and look for touching or frayed wires. Shorts are sometimes very hard to find. Use logic and just ba patient. Buy one of those fuses that reset and connect it to the test circuit that you are testing so you dont keep blowing the fuse at the fuse box.
- ?Lv 67 years ago
Sure, I have a suggestion. Go find a mechanic. Works for my when I have car issues. Why ask here? Are you a mechanic? I would bet not. And the piece is PCM, capitalized for Power Control Module. USPS. FBI, CIA, USMC. Ring a bell? PCM. Ford F250, capitalized as well.
