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Alternators
An alternator is an old term for electric generator that converts mechanical energy to electrical energy producing alternating current. Alternators are mainly used for recharging batteries and to power electrical loads of vehicles.
4,629 Questions
New battery but again car wont start how do you tell if its battery cables or alternator?
Alternator can be discounted for starting problem; it charges the battery when the engine is running it has nothing to do with starting the car.
If the engine is not turning over (cranking) when you try to start it, either the igniton switch, wiring or starter motor are at fault. Also check the thick cable from battery negative/body to the engine block.
NOTE if the car is automatic the park/neutral switch could be faulty. If the car is alarmed it could be an immobilizer fault.
Difficult to know from your question but if engine starts with charged battery, check WITH ENGINE RUNNING for 14 volts approx across battery terminals. If volts less than 12, swap out the alternator
What is the difference between alternators and dynamos?
Alternators produce AC, which is rectified by diodes if DC is needed. Dynamos produce DC by using a commutator.
I have a 2003 Chevy impala how do i know if i have a bad battery or bad alternator?
To test the alternator if funds are low, let the motor idle and remove the negative battery cable, if the motor dies its probably the alternator.
IT COULD BE YOUR BATTERY BUT I WOULD CLEAN AND CHECK THE BATTERY CABLES FOR A BAD CONNECTION. SOME AUTO PART STORES WILL TEST YOUR BATTERY FOR YOU FOR FREE. ALSO A GOOD WAY TO TEST IF IT COULD BE YOUR ALTERNATOR IS, IF YOU CAN BOOST IT TO GET IT STARTED THEN ALL YOU NEED TO DO IS REMOVE ONE OF THE CABLES WHILE IT IS RUNNING AND IF STAYS RUNNING THEN ALTERNATOR IS OK. THESE ARE THE MOST COMMON REASONS FOR YOUR PROBLEM. GOOD LUCK AND I HOPE I HELPED A LIL BIT. JEAN
Is it ok to put WD-40 on an alternator belt?
Absolutely NOT! WD-40 is a lubricant. The last thing you want to put on a drive belt is a lubricant. If the belt is making a noise, it is either loose or worn out.
The clicking noise is most likely relay chatter. If you turn the key and hear a clicking noise and the engine does not crank, this usually a sign of a low battery (or a short). Check the battery first. If the battery is good there may be a short in the electrical system. Start with the ignition switch. Remove the four screws on the bottom of the steering column. Then lift off the top half of the steering column. Inspect the wiring and try to tighten any loose connections. Make sure the pos. & neg. battery leads are in good order (especially the neg. lead.)
What alternator can interchange with a 1993 Honda prelude 2.2?
It depends. The 2.2 and 2.3 liter models (S, Si, SE) share a particular alternator. The 2.2 liter VTEC model uses a different model alternator.
How do you remove an alternator of a 1991 Honda accord ex?
Must be removed from underneath the car. Also the cross member blocking access to the alternator must be removed. This is a very difficult repair, as I have done this one myself.
How do you replace an alternator on a 1991 Jeep Cherokee Laredo with air conditioning?
i have a 1993 Cherokee and you need to remove the battery holder to pull the alternator out its just unhooking the wires and and the two bolts. you need to find out how to loosen the belt tensioner
I have a 1992 Jeep Cherokee with air. Its quite a lot more effort than this. I just did it and it took me slightly under 3 hours.
You'll need a 15mm, 13mm, 10mm and 8mm sockets and a 3 inch and 6 inch socket extender. You will need the same sized for regular wrenches as well.
The problem is available room. You have to take out the battery and the battery holder (15mm nuts), then remove the fan housing and then the fan (4 13mm nuts that are hard to get off if the serpantine belt is not tight) - the fan is in the way and you won't be able to get the alternator out if its inplace.
Next, you need to remove tension on the belt - this is done with a 13mm socket and wrench (access is tight on some bolts). Remove the bolt in the back of the power stearing pump assembly, then down below the pump you'll find another to loosen (don't remove). the loosen the one at the top fo the power stearing pump - you'll find a bolt under the pump where you can loosen the tension on the belt. This may be stiff and will require a 6 inch extension (the air filter and water hoses are in the way)
Once the belt is loose, you can take the 2 bolts that hold the alternator off (15mm). There is are 2 cables attached. One to an insulated post (10mm socket) and another one that is ground and some other alternator connections. the cables are attached to the block via a 13mm nut - remove this and you can pull the alternator out (I had to wedge it out with a broom handle). remove the cables, and clean the contacts on them with some 150 grit emery cloth. Pull the Alternator out and put the new one down and re-attach the cables. You'll need an 8mm socket for 2 of these nuts.
Slide the Alternator in and get the bolts in (its a tight fit on the engine).
Reassemble in the reverse order (getting the bolts back on the fan assembly took me quite a while).
I spent $115 on a the new alternator.
Where can you find a wiring diagram for a 1999 dodge ram 2500 van to fix an alternator?
The best way to fix an alternator is to replace it with a rebuilt one from the auto parts store.
The engine needs compression, fuel and spark to run, you are missing one of those.
How much does it cost to replace an alternator in a 2002 Nissan altima?
If you do it yourself, approx. $160.00 from your local auto parts dealer. It's a very simple procedure that takes less than 1 hour. Note that their could be a lead time for the Alternator so order ahead.
Can you show picture of where is the alternator located on a 1992 jeep Cherokee Laredo?
its bottom passinger side. beneth a/c pump
How do you replace a voltage regulator on a 96 Saturn SL2?
Replace the alternator. Utilize a Hane's Manual.
What other car's alternator can be used on a 92 Mercury Sable 3.0 engine?
the Ford Taurus is essentially the same car. the 3.0 engine is also used here. stay away from the 3.8 engine found in these cars.
How much does an alternator cost for a 1997 Nissan xe truck?
I'd suggest checking the Auto Zone or O'Reillys web sites for current prices.
Where is the alternator and how do you replace it on a 1999 Nissan Maxima?
You can find the alternator on the front, right hand side, of your engine. Remove the cables from the alternator. Remove the belt. Remove the retaining nuts. Reverse the process to install the new alternator.
Where can you get a belt diagram for an '84 Firebird specifically the alternator belt?
It would be in a shop manual from DISCOUNTAUTOREPAIRMANUALS.COM or I would look for a like car on a used car lot and see how it is run.
Where is the alternator on a 1984 Chevy c-10 with a 250 motor?
On the 250 cid engine the alternator lives on the passenger side front of the engine.
How do you remove alternator 1999 jeep Cherokee?
# Disconnect negative battery cable # Detach the electrical connectors from the alternator # Loosen the alternator adjustment and pivot bolts and detach the drivebelt # Remove the adjustment and pivot bolts and separate the alternator from the engine # If you are replacing the alternator take it with you to auto parts store to get it tested to make sure it needs to be if you havent yet plus get core credit and make sure new alternator looks the same
You might check to see if your vehicle has an external voltage regulator. Some voltage regulators are in the alternator, some are not. Another simple solution might be to check your fuse panel for a blown fuse, and make sure all the wires are tight at the connections.
