Question about 1989 Chevrolet G30

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Alternator not chargeing can i use wd40 to help

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First of all.. Check to see if ya have 12 volts going to the back of the alt. If so.. call your parts house and see if it has an external voltage regulator. If so, try a regulator..That was a tricky year when they had either internal and external voltage regulators. otherwise.. get a new alternator. sometimes, the volt gauge will cause a non-charge issue. You can straight wire the gauge to eliminate that.


Posted on Mar 08, 2009

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Why wont the battery charge


take battery out and take it to a auto parts store have it tested if its good then its an alternator problem sometimes its wire connections you can look up alternator to see what it looks like then go out and buy a can of wd40 and spray it on the electrical contacts you can reply me kphulesar@comcast.net

Jan 14, 2015 | 2003 Chevrolet Suburban

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1997 E320 benz battery not holding charge


sounds like a short or bad earth electrical problems are a pig to diagnose i think its a trip to an auto electrition try the earth on the battery make sure its clean try another battery as well have you touched anything bulbs anything spray wd40 on fuse boxes wiring ect but to be honest it could be anything

Apr 06, 2014 | Mercedes-Benz E320 Cars & Trucks

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Back flushed radiator and alternator stopped charging battery and engine developed a bad miss


you got water in the ignition and the water blew out youre altinator .....sorry my friend spray wd40 or equivelant on wires and distributor cap take cap off blow out moistier . as for the altinator its junk the coolant water is not good for them

Dec 02, 2013 | 1999 Chevrolet Lumina

1 Answer

1993 mercury capri charges then doesn't new alternator and battery


It's best to relate symptoms to narrow things down. I assume you are still getting a dead battery when trying to start even after replacing the alternator and battery.
Get a volt meter. Harbor freight sells them ridiculously cheap (about $5). Measure the voltage at the battery terminals when the engine is running. If it is at least 13.5 volts to 15 volts then the alternator is charging correctly. If it is 12 volts then the alternator is not charging the battery.

If the alternator checks out ok, then check for things that could be draining the battery when the car is off. Usual suspect is the trunk light. Put your cell phone on video record into the trunk facing the light, then shut the trunk. If the light stays on, its because the switch in the latch mechanism is faulty. WD40 might make it work, or just pull the bulb. Also, check the glove box light the same way. Good luck...Chris

Oct 09, 2013 | 1993 Mercury Capri

1 Answer

Car wont start light are dim, car making clicking noise when trying to start and electric windows wont let up or down


Charging system issue on car.
The car battery,alternator,fuses and relays needs to be inspected.
I suggest you to check out this help links given.Click the link below to go through the procedure,so as per that you can troubleshoot the problem .
How to inspect Vehicles Alternator?

http://repairhelpcenter.blogspot.com/2011/11/how-to-inspect-vehicles-alternator.html

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How to Test Vehicles Alternator?

http://repairhelpcenter.blogspot.com/2011/11/how-to-test-vehicles-alternator.html

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How to Service Vehicles Alternator?

http://repairhelpcenter.blogspot.com/2011/11/how-to-service-vehicles-alternator.html
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How to Replace Alternator?

http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-alternator.html

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How to monitor Vehicles charging system?

http://repairhelpcenter.blogspot.com/2011/11/how-to-monitor-vehicles-charging-system.html

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Car Alternator making noise? http://repairhelpcenter.blogspot.com/2011/11/car-alternator-making-noise.html
---------Car Alternator Working Intermittently?

http://repairhelpcenter.blogspot.com/2011/12/car-alternator-working-intermittently.html

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Car Alternator Bearing Makes Grinding noise?

http://repairhelpcenter.blogspot.com/2011/12/car-alternator-bearing-makes-grinding.html

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How to Inspect Alternator Drive Belt?

http://schematicsdiagram.blogspot.com/2011/12/how-to-inspect-alternator-drive-belt.html

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How to replace Alternator Drive Belt? http://repairhelpcenter.blogspot.com/2011/12/how-to-replace-alternator-drive-belt.html----------- Power windows not working after car wash?

http://howtobyme.blogspot.com/2011/11/power-windows-not-working-after-car.html

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Car battery loosing its charge overnight?

http://schematicsdiagram.blogspot.com/2011/11/car-battery-loosing-its-charge.html

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How to maximize fuel economy on your vehicle? http://schematicsdiagram.blogspot.com/2011/11/how-to-maximize-fuel-economy-on-your.html
-------------Charging system problem troubleshooting? http://technoanswers.blogspot.in/2012/02/charging-system-problem-on-chrysler-lhs.html
------------For All types of Power window problem http://repairhelpcenter.blogspot.com/2012/01/pontiac-grand-am-power-window-not.html----------This will help.Thanks.

Jan 26, 2012 | 2003 Buick LeSabre

2 Answers

Hi, l have a 1991 MR2 MK2'' turbo with Ferrari 355 body kit. The car has been standing outside in the wet all winter, only being started up a few times. Now l have started the car and as usual she starts...


how do u know the alternator is charging correctly, u should read 14 volts at the battery when the cars running to know its charging. try wd40 on ur electrical connectors in the engine bay, this will drive any moisture out of the connectors and hopefully correct ur problem.

Jun 20, 2010 | 1991 Toyota MR2

1 Answer

I am attempting to change the alternator, Battery unhooked, wiring removed, belt off , but 1 bolt remains , alternator will not pivot , any hints


Alternator is aluminum, bolt is steel...oxidation from electrolysis happens there easily. Lots of wd40, some light hammering on bolt head and sometimes heat helps (unless you aren't careful and start a fire or melt something you need). Once the bolt moves a little, keep working it in both directions and moving it out further a small amount each time.
Once you have it out, clean it up well and use anti-seize compound on it when putting it back together.

Jan 23, 2010 | 2004 Chevrolet Silverado 2500HD

3 Answers

Alternator not charging battery


If your "battery" light on the dash is going on and staying on the alternator is definitely faulty, either the diodes or the wiring. However, if the light doesn't come on when you turn the ignition key to "IG" position - befort it starts - check that the bulb is ok. The alternator won't work if the bulb is dead.

Jun 21, 2009 | 1998 Chevrolet Tahoe

3 Answers

Can a alternator PULLEY make a chirping noise?


It's possible that the alternator is making the chirp noise (bearing) but I would try this first. Start the engine and allow the engine to idle and open the hood and take a spray can of WD40 and shoot a short burst onto the bottom side of the belt and pulley. Dont spray allot as this will cause the belt to slip. The WD40 is to lube the pulley grooves and belt a slight bit. Hope this works!

Lefty64

Apr 09, 2009 | 2000 Dodge Durango

1 Answer

Does the serpentine belt need somekind of lubricant?


Belt is getting hot, because it might be loose or one of the components (AC, water pump, alternator etc) has trouble with rotation (getting stuck). In most common case it is alternator.
If you are handy with that you need to remove the belt and rotate the alternator, water pump, ac pulleys and see which one has problem with rotation. Also you can check for free at Autozone if alternator giving enough charge.

Libricants are prohibited to use, belt will be slippering and wont rotate the pulleys for AC, water pump, alternator.

For tension serpentine belt can be checked by twisting it, it should not twist more then 90 degree, or by pushing, no more the 1/4 inch freedom then you push it
Good Luck

Feb 12, 2009 | 1999 Chevrolet Tracker

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