Question about 1988 Chevrolet Suburban

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1988 chevy suburban charging system problem alternator wont charge new alternator new ignition switch good battery good belt removed old alarm system removed and replaced fusible links no shorts in system i am stumpted

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  • jambritt Dec 08, 2008

    New alternator, battiers it has 2, checked all wiring and still wont charge.

  • mspeach Apr 23, 2009

    solved my own problem kragen alternator tested good until i had it tested on the truck went to napa auto parts and purchased a good alternator. problem solved

  • Anonymous Mar 15, 2014

    new alternator and new battery and it sitll wont charge and i check the fuses they our good and it kill the battery when the car is off on my 2001 impala

  • Anonymous Mar 23, 2014

    No electrical activity at all, no lights, no ignition, no radio, nada. New battery worked for 3 weeks. Connections seem tight.

  • Anonymous Mar 25, 2014

    I have a 2001 Chevy Malibu, we replaced the battery and it tested good, and there's a new alternator. Each time we turn over the ignition it sputters a bit and just quits then when we try again there's nothing.

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First check alt At The Back of Alt Big Red Wire Were hooks to Post (stud) Do you have voltage ?? How Much??
What Voltage do you have at same Place with Engine Running ??
Now At wires Were they plug into Alt ,Top. Wires in White Plastic Clip, Do You Have Powe With Key On ?? How Much Voltage??
Jump across the 2 in the clip (with Engine Running)ONLY TEMPORARY!! Do You Have Voltage at Battery ?? How Much??
If Over 13volts With Clip On (Jumped) You Need A Internal Voltage Regulator ..
Is Batt Light On on Dash ??? Theres A Lot Of Testing You Can Do !!! And I will Need More Infomation to Keep Going ... These are just some Possible Problems No Way In Depth ...
Could Be a Number of things Or May be Just as Simple As a Blown Fuse, Dirty Batt Cables ETC etc etc I Hope It Puts You On The Right track !!!!!!!!!!

Posted on Jan 07, 2009

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Wich belt did you remove?it was'nt the alternator belt was it?and did you put it back on there?

Posted on Dec 02, 2008

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1993 cadillac. I'm having trouble with the charge light coming on, only at night causing the headlights to go off and on. been pulled over 3 times now. The battery is new, had alternator tested and te


Could one WHAT be overcharging the other WHAT???

To understand the problem you must first understand that the car runs off of the BATTERY. The job of the alternator is to replace the power that the car uses back to the battery. The car DOES NOT operate off of the alternator (many people do not get this). The charge light comes on when the charging voltage from the alternator is lower than the voltage that is available at the battery posts (that is why the charge light is ALWAYS on when the ignition switch is on but the engine is not running.

If the CHARGING SYSTEM had been PROPERLY tested, you would have seen this in the tests. If you removed your alternator to have it tested, this does not test the charging system in the car.

This can be caused by a failure or high resistance in ANY PART of the charging system. This includes not only the battery and the alternator, but also all of the connecting cables, wires and the ignition switch.

If the battery and alternator are both good, then the problem is most likely a loose or badly corroded battery cable. However, high resistance in the ignition switch circuit to the alternator can also cause this type of problem. The charging system in your car needs to be PROPERLY tested to pinpoint the location of the fault.

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1988 Honda Accord lxi has issues starting. Ignition, engine, starter, and most everything seems okay. Have not checked o2 sensors and getting new plugs after cleaning old ones and reinstalling them. They...


COULD BE LOOSE ALTERNATOR BELT.TRY ADJUSTING ALTENATOR BELT SEE IF HELPS PROBLEM.IF ALTERNATOR NOT CHARGING BATTERY THE ECM CANT WORK NONE OF ENGINE CONTROL SYSTEMS.IF ALTERNATOR DRIVE BELT TENSION CORRECT REMOVE ALTERNATOR TAKE TO ANY AUTO PARTS STORES THEY WILL CHECK IT OUT SEE ITS WORKING OR YOU CAN TAKE DIGITAL OR ANALOG VOLT METER TO CHECK ALTERNATOR OUT PUT AT BATTERY WITH ENGINE RUNNING SHOULD HAVE 13.5 - 14.5 VOLTS IF ALTERNATOR IE CHARGING THE BATTERY.

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Chevy Suburban 1500 -- Battery Not Charging Light....Replaced Alternator....Still had battery not charging light....Replaced battery....Still have battery not charging light...also first time seen service...


Make sure that you buy a 'lifetime' warranted alternator from your parts source to avoid problems with bad alternators out of the box. I would try to return and exchange the alternator with one that tests out ok on a bench, in order to verify if the wiring in between the alternator or the alternator itself was bad.

Service brake booster would have to do with the vacuum or power booster problem around the master cylinder for the braking system. That wouldn't have anything to do with the alternator, I do not believe.

Good luck on these repairs.

Jan 08, 2011 | 2003 Chevrolet Suburban 1500

1 Answer

1988 chevy truck battery light flashes when going fast and stops when slow down


Hello and welcome to FixYa!


If the battery light is on, I strongly suggest that you have the battery charged. It can be an indication of a weak battery or a faulty alternator. If the battery light still on after charging then the problem will surely be on the alternator itself. If that's the case the alternator should be replaced to resolve the problem.


If the battery won't hold charge even on a new alternator then the problem will be on the battery itself. It surely is in the end of it's service life and replacement will be necessary.


You may try to reset it to by removing the positive battery connector, letting it sit for at least 5mins. then reconnect it again. This will reset the system and can get the battery light off.


Hope this helps and thank you for using FixYa! Have a good one!

Dec 28, 2010 | 1988 Chevrolet Corsica

1 Answer

I have an 88 jeep comanche that has a new battery and new alternator but wont keep charge. What could be the problem and how do I fix this.


IF YOU CHECK FUSE.BATTERY CABLES COULD BE FAULTY IF VERY OLD.THEY CAUSE HIGH RESISTANCE IN CHARGING CIRCUIT.CHECK FOR LOOSE DRIVE BELT.AND CHECK ALTERNATOR WIRING IF BROKEN OR DAMAGE YOU WONT GET CHARGED.AND MOST OF ALL MAKE SURE YOU BOUGHT THE RIGHT AMP ALTERNATOR.

Sep 17, 2010 | 1988 Jeep Comanche

1 Answer

Wont start


you obviously , have a drain in the system, could be a simple as the glove box light staying on, otherwise, run you car down to the mechanics and ask him just to check your alternator is working, he shouldn't charge you to do that. all the best and good luck

Jun 01, 2010 | 1988 Chevrolet Silverado 2500

2 Answers

Battery wont cahrge up


Hi,welcome to fix ya.
It sounds like you are not getting power to the alternator if it is really god. check the large wire at the post with your meter it should have the same voilage as the battery. if not try cleaning the connections at the battery and check the inline fuse link .

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2 Answers

1998 Chevy Astro Van has no electrical power


Check the battery contacts for tightness and deposition. Make sure polarity is fine.
Also check the ignition switch
Let me know if you need more info
Good Luck

Feb 09, 2009 | 1998 Chevrolet Astro

1 Answer

Altanator not charging


Alternators require a + feed from the battery before they start charging. Make sure 12v is reaching it from the switched live supply.

Thank you for using Fixya.com.

If this leads to a fix for you - please rate as Fixya. Much apreciated. Thanks.

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1 Answer

2003uburban not charging


make sure you have power to the back of the alternator and make sure you have power from the plug

Oct 22, 2008 | 2003 Chevrolet Suburban

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