truck starts missing when i take battery cable off
Asked by migration_robbieboy Feb 02, 2014 at 08:46 PM about the 1986 Ford Ranger STD Extended Cab SB
Question type: Maintenance & Repair
truck starts missing when i take positive battery cable off
10 Answers
May I ask why you would take the battery cable off a running vehicle? Is there another issue that you are trying to figure out by doing this?
migration_robbieboy answered 10 years ago
fuel injected ive had to jump start the last two times thought it might be a bad alternator
Ok. That not a good way to test the alternator. The sensors need the battery hooked up to function properly. Use multi meter. Your alternator should be putting out 14.5 volts.
When you take the battery cable off it is killing the power to the PCM which eventually shuts down everything electrical.This is normal.
Yes check with a vot/ohm meter or have it checked at a parts store like advance.
If you don't have a meter the your local auto parts store(auto zone) will check it with a meter for you.
