why is it when i jump start battery amd remove cables car shuts off?
What is your question?
3 days ago driving almost an hour away battery n break light came on in dash when i break or press gas. 10 miles later i broke down. car just died. got it to a friends house and figure :it was my altanator so i got a used one. now when i jump start the battery it shuts right off within 2 seconds of removing the jumper cables. fuel pump seem good. replaced valve cover gasket since it needed it. but i cant seem to figure out whats keeping my car from stayin on when i get it started. is it a relay or battery? please help. been stuck at a friends house for over 3 days
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battery is discharged/shorted and/or used alternator is bad.take good battery from another car as long as the cables hook up the same,and the battery will fit in the battery tray,start the car,see what happens.use a volt meter after car is running and check battery voltage.should be 13.5-14.5 volts dc.if less,the alternator is bad.
If your engine shuts off when you disconnect the jumper cables your alternator is not providing enough current to keep the car running and your existing battery is extremely weak.
A car will run on a fully charged battery for a short period of time (10-20 minutes - some racecars don't have alternators)
And a car will run with a good alternator without a battery in the car (but can damage the alternator so don't try it)
Something is keeping the alternator from recharging the battery and providing current for the car to run.
