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Can a bad alternator cause a bad battery?

Can a bad alternator cause a bad battery? But, before you condemn it, run a voltage drop test between the alternator and battery. GM typically runs a fusible link wire between them for overload protection and they can go bad, mimicking a bad alternator. A voltage drop of .25 volts or less is Ok and the alternator is bad. Why does the Volt gauge go up and down? The voltage always fluctuates, goes up and down depending on how much current is being used by the accessories, and the engine rpm, the charge state of the battery, the ambient temperate,...
Common questions

What to do if your OBD port does not work?

What to do if your OBD port does not work? Please try again later. If you are trying to connect your scanner to the OBD Port it does not work, does not communicate with the car we will show you how to fix that. Usually there is a fuse for the OBD port, if you cannot find they the fuse for the cigarette lighter and the auxiliary ports. Instagram: https://www.instagram.com/worldmechan... Why is the OBD II scanner not communicating? Check the fuse box (Power Panel), it might be the reason why PCM isn’t able to receive power as well as communicate....
Easy tips

Why does my car a / C not work when its hot?

Why does my car a / C not work when its hot? A/C doesnot work when its hot outside. When the A/C does work it cools well. When I take the car out of garage the A/C cools well but as I start driving and if the weather outside is hot, the A/C stops cooling after some time. Can you leave the AC on while the engine is not running? You don’t want to waste gas, so you turn off the engine, but it’s warm, so you leave the blower running. You know this pulls current from the battery, but...
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Is the 1994 GMC Sierra a good car?

Is the 1994 GMC Sierra a good car? Read full review The 1994 GMC Sierra 1500 has not been tested. Like what you see? Find the best deal on a GMC Sierra 1500 today. There are for sale near you. Certified child passenger safety technicians conduct hands-on tests of a car’s Latch system and check the vehicle’s ability to accommodate different types of car seats. What kind of engine does a GMC pickup have? This engine was designed as a direct replacement for 1987-1995 Chevy & GMC pickups, SUV's, and van applications. These vehicles featured a 350 ci, 5.7 small...
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When I start my car I hear water flowing?

When I start my car I hear water flowing? The sloshing sound you hear, when your vehicle starts, most likely is air trapped in the heater core. The solution to this problem is to have the coolant system flushed. There is the possibility, the AC system refrigerant is low. This could be result of a leaking AC compressor. Where does the water go in a car when it rains? Water can enter the body of the door when it rains, and generally drains out of holes in the bottom. The door is sealed all the way around by weatherstripping, and...
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What does the p0299 code on my car mean?

What does the p0299 code on my car mean? What the P0299 code means. The P0299 code indicates that the Turbo or Supercharger "A" has excessively low output. The ECU looks for a specific range of boost and when the low boost is detected by the ECU, it sets a P0299 code. This code will illuminate a Check Engine Light on the dashboard and may put the vehicle in limp mode. What causes underboost on a Ford p0299? Reduced power output from engine, possibly in a "limp" mode There would likely be no other symptoms. Potential causes of a P0299...
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Where is the backup light switch located on a 1990 Chevy?

Where is the backup light switch located on a 1990 Chevy? On a manual transmission, the switch will be located on the side of the transmission. On an Auto, the back-up lamp swicth is part of the range selector switch, located on the side of the trans where the cable attaches. Ask Your Own Chevy Question How do you replace a backup light switch? Replacing a backup light switch is fairly straightforward if you know what the switch looks like and where to locate it on your vehicle. A backup light switch screws into the transmission and is triggered when...
Common questions

How long does it take to install new speakers?

How long does it take to install new speakers? With all of the above caveats in mind, installation of a car stereo should take anywhere from one to four hours. How long does it take to install a subwoofer in a car? If its just amp/sub takes 3-5 hours to do a good job and depending on the vehicle with 1 person working on it. 2 people usually cut time in half, SUVs usually take longer. E/ for 180 just for labor? How long does it take a professional to install a subwoofer? How long does a subwoofer installation take?...
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How much does a 2004 Chevy Impala cost?

How much does a 2004 Chevy Impala cost? Used 2003 Chevrolet Impala $3,599 Auto House Used 2005 Chevrolet Impala Sedan $4,988 NEW DEAL PRE-OWNED AUTOS Used 2002 Chevrolet Impala LS $6,350 Reduced Shift Sacramento Used 2005 Chevrolet Impala Sedan $6,777 NEW DEAL PRE-OWNED AUTOS Used 2004 Chevrolet Impala New Listing $6,143 Larry H. Miller Chrysler Jeep Tucson Where was the 2004 Chevy Impala last serviced? Mileage: 108,995 miles Body Type: Sedan Color: Black Engine: 6 Cyl 3.8 L Accident reported. Purchased on 09/07/04 and owned in NY until 04/28/21. Driven an estimated 4,867 miles/year. Last serviced in East Northport, NY...
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What is the VIN number on a GMC?

What is the VIN number on a GMC? A VIN number is a 17 character alpha/numeric serial number unique to each vehicle, by manufacturer, make, model and year. Each character in the VIN number can be decoded to determine where the car was built, what year, which automotive features are included and more. Together, all the VIN numbers create a history about your GMC General Motors. What kind of truck is the Chevy 3500? 2020 3500HD Express KUV 11' 9900 GVWR Summit White 2020 Chevrolet Express 3500 Work Van Commercial RWD 6-Speed Automatic HD Electronic with Overdrive 6.0L V8 Backup...