The alternator may be over charging the system. Run a test with a external volt meter and see if you still get 16 volts. The output of the alternator should be around 15 volts not 16.

Answered by backyardmechanic
3 questions asked

Re 96 isuzu trooper, I have already tried the external meter, it has a normal reading. When my trooper starts doing all of these things, it starts making a clicking noise in dash on the left side of the steering wheel. Could this be a relay/breaker/or fuse going bad under the hood?

Response from Gnoe
1 question asked

had same problem. the voltage regulator is built in the alternator. so you need to replace it. call your local dealer and give them your vin number and they will give you the part number. then go on ebay and buy a replacement. thats what i did and payed a local mechanic to install it it was cheaper then autozone. only 150 total

Answered by ps2chiper
1 question asked