1997 Cherokee when ac is turned on the volts drop and belt squeels it has a new alternator water pump and belt?
First, check the status of the AC compressor. Make sure you can turn it by hand while the clutch is disengaged and the engine is off. You should turn it several turns, just to make sure it's free. If the AC compressor isn't turning freely it's most likely faulty. If it does turn freely, check the belt tensioner to make sure it has enough tension to keep the belts from slipping.
1997 jeep grand Cherokee alternator test What is the best way to test the alternator and the voltage regulater?
Automotive Battery Voltages Assuming your voltage meter is accurate, the battery is fully charged, when the key is turned on, without the engine running, and no accessories turned on, the meter indicated voltage should be 12 volts. When the engine is running and the alternator is charging the battery, the voltage should indicate anywhere between 13 volts to about 14.6 volts. Answer 2 - A wider Acceptable Range 13.5 −16 volts is acceptable with the…
Borrow a digital DC voltmeter, attach the meter to the positive and negative battery posts, if the battery is healthy and fully charged it should read 12.68 volts, now start the engine and monitor the voltmeter, if the battery is fully charged and the alternator is healthy the meter should read 14.2 volts (give or take .3). If the voltage fails to reach that goal the alternator is probably faulty.
i have a 1993 Toyota Camry and I'm having a problem with the alternator whenever i start the engine the voltage is at 13.5 volts a few minutes later voltage drops between 11.5 to 12.7 volts,i had the same problem 6 months ago with the same car and when i was going to replace the alternator the belt turned out to be have cracks on it,so instead of replacing the alternator i replaced the belt…
Alternator Output Voltage Range Generally, an automotive alternator is considered to be "good" if the output voltage is in the range between 12 1/2 volts and a maximum of 16 volts. Anything below 12 1/2 volts probably will not adequately charge the battery, and voltages above 16 volts can "cook" the water out of the electrolyte, and cause damage to the battery.
Automotive Alternator Output Voltages With a properly operating alternator, AND electrical system, a voltage output range of 13.5 Volts to 16 Volts is considered acceptable. Just the alternator puts out around 120 vac, but most newer alternators include a built in rectifier that limits voltage output to between 13.5 and 15.5 volts DC depending on speed.