Question about Chevrolet 1995 Chevrolet Blazer S10/jimmy S15 Radio

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When I accelerate my battery drops

Everytime I accelerate the battery drops and the machine they put on at the auto store said alt and battery were good

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I have an '02 Buick Rendezvous with a problem with the charging system. I got a new battery but haven't changed the alt. Some people have told me its the alt wire that charges the batt. Please help.

Yes that is true BUT
most of the time this is simply a dirty cable to battery connection.
Did you clean the cable connection down to silver color inside when you changed the batt? Folks buy new batts all the time when all they needed to do was clean and tighten them.
With the engine running put volt meter test leads one to ground and on each side of of alt out wires one then the other. should be 13+ volts
then put them on each side of battery and it should be the same. If not take it to the Auto PARTS store and have them check the alt for free.

Hope this helps Mike

Mar 06, 2016 | Buick Cars & Trucks

1 Answer

02 toyota camry dies everytime foot is off accelerator

Most auto parts stores offer free Alternator testing takes 5 mins. if the Alternator is good and will hold a charge,then your problem sounds as if it is a spark plug/ fuel mixture issue,,check plugs and plug wires.

Jun 07, 2012 | Toyota Camry Cars & Trucks

1 Answer

My serpintine belt slips off everytime it is raining outside

you have a pulley that is off center more than likly the alt!! if not have you changed
water pump/ power streing/ alt/ idler pully/ if so ck for alignment thats the only way
or and i cant forget please check to make sure the auto parts store gave you the
right belt for your car duble check with oyher parts store and see if they come up with
the same number as the one you have

i hope this helps you bob.

Sep 22, 2011 | 1996 Chevrolet Camaro

1 Answer

.1991 Ford Aerostar 4.0 Lt engine, auto tran', electrical short ?

turn every thing on in park if voltage drops change alt

Mar 03, 2010 | 1991 Ford Aerostar Extended

1 Answer

Battery,ABS,brake dash are on.when it first happend i could rev the motor and the lights would go out.took alt.out had it tested at auto zone they said it was fine.put alt back in same thing. any info...

test and check battery and or connections to and from alternator also check the connections for the abs sensors may have a loose or damaged connection if looks good than have car scanned for trouble code [even with light out compute still stores code] some auto stores such as auto zone / advanced auto scan for free check ur local area the code will give u a start point towards fixing ur problem good luck

Feb 25, 2010 | 1994 BMW 5 Series

2 Answers


clean the IAC it is all you need to do. Battery voltage drops just because when the engine stalls it kills the alternator. Engine stalls beause the Idle Air Control (IAC) valve is dirt clogged. Uninstall the IAC valve, and clean it using electronic contact cleaner (3M will do). No need to spend anything else.

Feb 11, 2010 | 1997 Jeep Grand Cherokee

2 Answers

Not charging battery

check the alternator at a repair shop or auto parts store .they can put a gauge on it

Dec 03, 2009 | 1997 Ford Econoline

1 Answer

Volt gage drops when not accelerating, replaced battery and altenator, its running worse now

What are the voltage readings?
Voltage may drop when idling and a larger voltage drop can be present when a large load (amp draw)is present on the alt.
A low charged battery is a large load.
Operating accessories is a large load.
A slow spinning (idling) alt will not put out it's max output.
This would be normal.

We like to see.....above 12.7V at idle....max 15V.......
.......and a min of 13.5V to a max of 15V at higher engine speed.
If you are with-in this.......don't worry about it.

Aug 27, 2009 | 1992 Buick Century

2 Answers

Car dies while driving wont hold the charge

I would go to advance auto parts and have the battery tested, Also the alternator, The engine wont run if the alternator is bad, As soon as the battery goes dead the car will shut down, Any auto parts store usually will check the battery and alternator for free, make sure the battery is fully charged before you take it there. They will let you know what you need to replace...

Jul 12, 2009 | 2002 Buick LeSabre

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