Q: alternator problem

asked by on

the alternator went up and every time we put in a new one it keeps frying, we bought the car used & it had a truck battery in it. I think the guy selling the car put the larger battery in so the car would run when we took it for a test drive. It's at car repair shop right now but the mechanic can't figure out why the new alternator is frying??? Any advice???

If you keep burning up alternators then you will need to check to see if the 175A main alternator fuse is blown. If the fuse is blown then you have a short on the large main cable that goes from the alternator to this main fuse. Depending on the engine you have the short may be at or near the alternator and may be an intermittent short. Have the wire harness checked inch by inch for the engine harness. The outer covering of the harness and wiring may have been exposed causing the short of the alternator and burning it up.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. alternator problem

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Q: Radiator leak

Hello. It may very well be that there is a leak in the radiator, but it is also possible that there is a leak in another area of the coolant system. All of the radiator hoses, as well as the...

Q: Fan or water pump not working

Hello. This engine typically overheats from a failing thermostat or possibly a more serious issue. I would typically start by checking the coolant level and running the engine until it gets hot. I would then make sure that the fan...

Q: I have a 1999 Oldsmobile intrigue 3.5. I pulled up to the house to park and put my car in reverse, the engine cut off but everythi

Hi there. If all the power systems work but the car will not start, it's more than likely that the problem is caused by an ignition system component failure - such as a crankshaft position sensor or cam sensor. It's...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...