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A faulty alternator plug was replaced on an '86 F350 460 the amp meter registers backwards and smokes a little when running?
Wiki User
∙ 13y ago
The wires in the plug are backwards. switch them around
Wiki User
∙ 13y ago
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How do you know if it is the alternator that needs to be replaced?
Check the voltage at the battery with engine running. It should read 13.5 to 15.5 volts. Any less and the alternator is suspect.
Why would a 1994 Chevy Cavalier have a growling sound coming from the engine whenever the engine is running?
It turned out to be the alternator going bad. Replaced alternator. No more growling.
How can you tell if the alternator is bad on a 1984 camaro?
one is most places test for free. but the easy at home way to check is get your car jump started if its not starting on its own. after its running, pull the negative off the battery taking special car not to arc your wrench on anything. if its keeps running, alternator is good. if it dies, get it replaced. if the alternator is bad, it may have killed the battery, so get it tested and replaced if needed.
Egr 94 ford f 150 the truck is running and when you turn on the lights the truck dies immediately?
have the alternator tested or replaced
Replaced battery and the battery warning stays on?
check the alternator. Use a digital multimeter and with engine running you should have 13-14 volts at the battery. If less than 12.5 Alternator is not charging Also check the amperage the alternator is putting out.
Why does your car fail to produce 12 volt constant?
Your car should produce about 14.4 volts from the alternator when the engine is running. If it does not produce anything over 12 volts, your alternator is not charging and you need to get it repaired or replaced.
Why would the amp light be on after changing the alternator battery and solenoid on a 1990 Ford Tempo?
I have the exact same pproblem with a 1988 tempo, replaced the alternator and battery, still the alternator only reads 5 volts when running. Can't figure it out, do you know of any websites that would have a diagram of the alternator for a tempo?
Will your alternator recharge your battery if you let it sit for a while?
If the engine is running and the alternator is good. If the engine is not running, no.
You've replaced the Alternator fuses everything you can think of alternator still not working running off the battery what or where should you look for next?
Have you drove the car around? Sometimes it takes the alt. awhile to "kick" in. Say around the block twice?
Where is the voltage regulator on a 1995 tracker?
HI, All of my info and my garage tell me that the voltage regulator is part of the alternator. That's also what I found when I replaced the alternator on my '97. I hope this solves your dillema and yours is running soon. Steve H.
What is wrong if the battery light is on in a 1999 Ford Expedition and it has 11.5 volts at battery and you replaced the alternator and it dies if the battery cable is pulled while running?
Check out the battery cables. Make sure that they are connected good and not corroded or damaged. Also check the connections at the alternator. I had a 97 Expedition with a battery indicator, 12.4 volts at the battery with the engine off and 11.6v with the engine running. Replaced the alternator and then had 11.9 v with the engine running. Checked the alternator fuses on the firewall and found the 175a alternator output fuse blown. Replaced the fuse and voltage then read 14.3 with the engine running. Not sure if the fuse was blown before the alternator was replaced or not as I never thought a 175a fuse could blow without fireworks. 2 cents: Fuse..... Also check for defective replacement alternator, alternator rebuilt with incorrect regulator, damaged instrument panel cluster, or damaged or poorly connected wiring. Rocky_B Sounds like a dead battery cell. 1) Engine OFF - A servicable battery will show 12.5 volts at the terminals, anything less and you have dead or dying cells - Replace the battery. 2) Engine RUNNING - A good alternator should put out 14volts or more. 13-14volts=weak alternator, If voltage at the terminals is the same or lower after starting, your alternator might not be putting out anything or you have bad diode pairs in the voltage regulator. With most newer models the voltage regulator is attached to the alternator, so you replace both. If the voltage regulator is not attached to the alternator, you still want to replace both as voltage regulators tend to become mated to the old alternator's output over time. replacing just the alternator could cause the voltage regulator to fail.
What can make a car battery die when running?
It sounds like the alternator is bad. If the alternator is bad the battery will not hold charge when running
