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Why does the check engine light come on and the alternator gauge jump up and down when the air or lights are on?
More then likely your alternator is bad...But it also depends on what year your vehicle is as well...if its older then it could be the regulator...this tells the alternator how much juice the battery needs...So if your battery is not fully charged then when you hit the lights they will dim and get bright...Best bet..change both battery and alternator..
What else can I help you with?
What does the check gauges light mean on a 1994 Chrysler LeBaron?
It means that one gauge is not in the safe zone. Check the engine temp, oil pressure, battery/alternator voltage,It means that one gauge is not in the safe zone. Check the engine temp, oil pressure, battery/alternator voltage,
Alternator gauge definition?
provides electricity to keep the engine running, recharge the battery, and operate such equipment as lights and radio
What causes a consistent drop to 10 volts on your dash gauge plus Lights are dim and Gen light came on?
Check the alternator.
What makes your fuel gauge needle fluctuate with your turn signal?
Probably a dying alternator. Other lights may come on or off in the dash cluster. Check your accessory bet and have your alternator tested.
What causes intrument gauge and lights to quit power windows quit headlight sensor quit check engine light is on center brake lights don't work and happened all at once while car was running down the?
it sounds to me like you need to change your alternator ?
Check engine light came on when volt gauge went from 14 to 11 and stayed there on a 2003 ultra classic?
Your alternator or drive belt is going.
What does the check gauge lights mean on a ford explorer sports trac?
Either your oil pressure gauge is reading low , your engine temperature gauge is reading high , or your fuel gauge is reading low so your almost out of gas
What does the red light on the gauge of a Suzuki gsxr 600 mean when it lights up?
its basically the check engine light and should be checked out immediately
Could something be stuck open to cause a temp gauge not to register cause the fuses have been replaced and also could this cause the check engine light to come on?
Most likely, the temperature gauge's connection is loose. It is usually on the thermostat. An inoperative temperature gauge will cause most check engine lights to come on.
Why does your amp gauge go down when you turn on your lights?
The amperage gauge will go down when you turn on your lights, because there is a sudden draw of electric power from the battery. The alternator should equal out the power surge.
Where is the location of the check engine light on a 1996 ford ranger?
Check engine light : Gauge cluster without tachometer ( under the engine oil pressure gauge ) Gauge cluster with tachometer ( just to the left of the battery voltage gauge )
Will alternator still work if the gauge is not?
An alternator does not need a gauge to work. It is used to monitor the output of the alternator.
