i drive a 91 ford escort gt. ive been monitoring the rpms recently and realized that when i turn my head lights on my rpms rise about a grand. does anyone know why?
my car also dies a lot. theres a new battery, the alternator is good yet after starting about three times, it wont stop or the lights wil dim and turn off while driving. any help please?
2007-04-29 08:19:30 · 5 answers · asked by jimbogatu 1 in Cars & Transportation ➔ Maintenance & Repairs
Because your alternator has to start putting out high voltage to run the lights and charge your battery. If it is very noticeable you could have a bad alternator. the regulator is inside the alternator. So have a charging system check done on your car Soon, you will kill the new battery with this problem
2007-04-29 08:30:38 · answer #1 · answered by redd headd 7 · 0⤊ 0⤋
When a load is placed on the electrical system, the alternator works harder causing the rpm's to slow. Your onboard computer then senses the change and increases to compensate.
As for the next part, it sounds like you may have a bad connection somewhere or otherwise an electrical problem and you probably need to seek technical advice at the dealership. It could be that you just need a new headlight switch but there again, we need more information, like from a technician after testing and inspection.
2007-04-29 08:26:30 · answer #2 · answered by bigrick45 4 · 0⤊ 0⤋
I think there may be problem with the charger (dynamo), its not fully charging the batteries. If the batteries are under charged they would exert the alternator (dynamo) & indirect the slow down the engine. This type of situation arises when you switch the car AC on.
Further if you have changed the headlamps of the car to tube type (halogens) they consume more energy than normal lamps & put more pressure on the battery & engine. Consult a car electircian & ask him to install a 'cut out' between the head light & battery's wiring. Sure this may help to decrease stress on engine.
2007-04-29 08:35:40 · answer #3 · answered by lucky s 2 · 0⤊ 0⤋
everything you describe although its not real clear to me, is not normal. it sounds as though you may have some major electrical problems. I can not tell you what is wrong but I would try to find the best electrical diagnostic shop in your area and pay for an hour or 2 of diagnostics. to everyone who is reading the answers here, DO NOT ever disconnect the battery on your vehicle while its running to test your alternator as this can cause voltage surges that can take out expensive electronics.
2007-04-29 08:43:27 · answer #4 · answered by Anonymous · 0⤊ 0⤋
sounds like a bad alternator. to check remove one of the battery terminalsafter yo start the car.if the car stalls the alternator is shot. if it runs turn on the lights as well as all teh power assessories if it stalls then, alternator is weak. if it stays running may be a dead cell in the battery.had that happen before.
2007-04-29 08:31:14 · answer #5 · answered by Anonymous · 0⤊ 2⤋