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First, how is the batt? New, old? Most charging/starting systems have a regulator for the alternator so it will not overcharge the batt or produce more power than the car needs. If this is working incorrectly it could keep damaging your alternator. There could also be a parasitic draw of power from your car causing the alternator to run continuously at a high rate. Do you have an aftermarket stereo hooked up in the car? Have your engine light scanned at a garage. The code stored in your car can help lead the mechanic to the source of your problem. I am an auto tech, but without actually seeing your car this is the best advice I can give.
What else can I help you with?
Where is alternator located on 2001 cougar?
On the engine
Engine staled while driving and the battery light came on then went off and then your check engine light is on would it be my alternator or battery that needs to be replaced?
your Alternator
Where is the alternator located on a 1986 Mercury Cougar?
front of engine at top on right side facing engine
Can an internal voltage regulator be replaced on a 1996 jeep grand Cherokee or does the alternator have to be replaced?
The regulator is in the engine computer not the alternator.
What will make the charging system come on on a 2000 Mercury Cougar?
The charging system is the alternator which is on and functioning anytime the engine is running. If not, then you have a problem with the alternator.
Where is the mega fuse in a mercury cougar?
The Mega Fuse is located from the alternator to the back of the engine, under the air filter.
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.
What is making a squeaking chirping scraping noise at front of engine on a 1997 mercury cougar 3.8L engine Belt idler pulley tensioner pulley water pump and belt have been replaced and noise is same?
Did you look at the alternator bearings?Take the belt off and spin the alteranator to see if the bearings are bad.
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 does my 1994 Lumina Apv 3.8L engine cut off for no reason while driving and start right back up even though I have replaced the battery and alternator?
Check the ignition control module...notorious for this problem
How replace alternator regulator 2004 Dodge Intrepid?
The voltage regulator is part of the engine computer. That will have to be replaced by the dealer.
Replace alternator on Pontiac aztek?
The alternator on a Pontiac Aztek is replaced by removing the engine accessories, loosening the serpentine belt, and removing the retaining bolts. The alternator can then be pulled from its retaining bracket and a new one installed.
