Close
Car Questions
RepairPal is your advocate for car care advice and guidance

Battery light stays on - alternator output guage reads low

(1990 Chevrolet 1500 Pickup)
in Manassas, VA on March 15, 2011
Truck has been setting for a while. Charged up battery, starts fine, runs fine but battery light on dash has come on and stays on. Noticed that the alternator output guage is not registering where it normally does (around 14) when engine running but rather reads down around 8. Alternator bad and truck just running off of battery? Thanks.
Displaying 1 answers & 0 comments
Popular Answer
on March 15, 2011
check for proper amperage .your alternater might be generating enough juice to keep ibattery charged and running. yet not enough for proper specs.so your gauge drops and is really running of battery..(BAD alternator)
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide. Learn more

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
So I replaced the ignition switch which everywhere I’ve researched has said to do but it did not fix any of the probl...
I replace the fuel pump, gas cap, evap canister vent solenoid, evap purge solenoid valve, evap canister, fuel tank pr...
Didn't find what you were looking for?