Question about 2001 Chevrolet Tracker

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Lighting pulsating while driving

I had my alternator and battery checked and it was good the car cranks up and runs but lighting fads in and out

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My instrument lights and headlights pulsate especially when driving


I would say no to reg or alt ,when you apply brakes there is dimming and that sounds like a negitive grounding problem not at battery,the dimming is caused from a back feed of ground possible.there are what are called body ground straps from battery to body panels and frame.as far as bat or alt advanced auto and most auto parts stores will be glad to check them out for FREE ,good luck

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I have a 91 Honda Civic. I have had the alternator tested and it is fine. Put in a new battery also. However, sometimes my battery light will flash when I start my car up. Then when I am driving the...


The red light flickering could be a diode fault within the alternator. Pulsating could also be a fault with the alternator or a faulty ground/earthing point for either the battery or the harness. If your drivebelt tension is fine, its more than likely the alternator. Hope this helps...

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I have a 2001 Chevy Blazer. Yesterday, my car died while driving down the street. Once I got it to the side of the street, no dash lights would turn on. I had had some battery problems about a month ago,...


IT COULD BE A BAD ALTERNATOR. JUMP START THE CAR, REMOVE THE JUMPER CABLES, PUT A VOLTMETER ON THE BATTERY. MOTOR RUNNING, VOLTAGE SHOULD READ 13.90 TO14.80. IF IT READS 13.00 OR LESS OR THE VOLTAGE STARTS DROPPING, THE ALTERNATOR IS NOT CHARGING. BEFORE BUYING AN ALTERNATOR, GET A GOOD FUSE TESTER, CHECK EVERY FUSE,, FUSEBOX UNDER THE HOOD & THE FUSEBOX INSIDE THE VEHICLE. IF ALL FUSES CHECK GOOD & BATTERY VOLTAGE IS LOW WITH MOTOR RUNNING, THE ALTERNATOR MUST BE BAD.

Jan 11, 2011 | Chevrolet Blazer Cars & Trucks

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I was driving and the engine and electrical shut off. battery and starter are good, but i have no lights, electrical, or crank. 98 gmc sonoma 2.2litre


the engine actually runs off the alternator not the battery i would check the alternator and it has a main fuse that handles everthing

Jul 22, 2010 | 1998 GMC Sonoma

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88 chev,350, stick,2wd, 3500, gas flows to


E.C.M control injector pulsation, with key on check for voltage at injector harness, then reverse test light at battery and check for ground at the other wire at injector harness, crank engine ground should have pulsation if none bad E.C.M,good luck,hope this was very helpful.

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Just bought car. battery seemed to be dead. charged up and drove 1-2 miles while check charge light was on with change oil and check coolant. Also, red light on dash for Alternator. Then all lights guages...


sounds like the alternator is shot and is not supplying sufficient power to the engine or even enough to charge the battery, try replacing it, and you said the dash light for the alternator is on so its most likely the alternator

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1 Answer

My 2004 JeepLiberty will not start. Having trouble determining wether it is my battery or alternator? Suffering from CNS.


The alternator can be checked once you have the vehicle running. If you have a battery charger, charge the battery first. If not find a known good battery to jump start the Jeep. If it starts most likely bad battery, espically if it is the original one on 2004. Drive to your local auto parts store, they have a meter to check your battery and alternator. Make sure they check the batteries cranking amps, and most good alternators with engine running will put out approximately 14 volts. God Bless

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1 Answer

Pulsating or flickering lights


your car is in denial.... Have your battery load testest. If it has any plate issues it can mislead the alternator regarding its state of charge abd, by all means make sure your battery cables are clean and tight. good luck

Jun 08, 2009 | 1999 Chevrolet Monte Carlo

1 Answer

Battary light on , engine cut off car won't crank


sounds like it's your alternator, your alternator charges your battery and runs car once it is started. if you have a bad alternator your battery light will come on, and shortly after your vehicle will die, unable to restart without a jump. I would take your battery to autozone or an auto shop to have your battery and alternator tested.

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