Question about 1986 Chevrolet Chevy

1 Answer

I purchased an alternator from e bay advertised as late model gm. it looks like gm but has no screw on the back to attach ahe battery wire. it has a connector with three large pins in it. the other connector has three smaller pins in it. what could it fit? it appears to be a 75 amp alternator

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 834 Answers

From what you are describing, it sounds very similar to a late model ford alternator that were made through the 90's, and it sounds like the type that ford used in the F-350's and larger trucks.

Posted on Apr 29, 2010


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:


Automobile battery and charging system

Most automobile batteries are lead acid which should have a standing voltage of about 12.6V fully charged at 70 degrees F. To test a battery first it must be fully charged. If fully charged a good battery will stay above 9.5V while cranking engine. Most part stores will charge and test batteries, starters and alternators. To be sure your alternator is properly charging start the engine and turn on the headlights and blower fan to add electrical load. Voltage should be over 13.2V at idle and under 15V with a known good battery. If not check the larger wire bolted to the back of the alternator for loose connection and continuity to the battery. If ok check fuses. If all are present and check good most likely the alternator is bad and needs replacement, although it is possible on many modern automobiles to have a powertrain control module (PCM) be the problem as they serve as the voltage regulator. Most late 90s and newer GM and Chrysler do. If all else fails have a professional check it to be sure. Hopefully this will answer the questions of many. Good luck ??.


on Feb 01, 2015 | Cars & Trucks

1 Answer

Where is ac pressure switch

On GM models up to the late nineties it is located in the low pressure AC hose or on the accumulator which the low pressure line attaches to. The switch has a 2 or 3 wire connector to it and screws into a pressure port like a large tire valve..

Aug 06, 2012 | Oldsmobile Custom Cruiser Cars & Trucks

1 Answer

Have a delcotron alternator ,what to know where no.1 terminal and no.2terminal wire goes it is on my 1946 cj2a jeep my amp hand does not show a charge had alternator checked out and is ok

  • Use a wrench to remove the negative and positive battery cables: They are clearly labeled "+" and "-." Always remove the negative cable first, as this isolates the power to the metal parts of your car. Tuck the cables away from the battery as you don't want them to accidentally touch a battery terminal when you're wiring your alternator.

  • 3

    Locate the alternator terminals. There are two: one marked "live," "pos" or "+" and the other marked "neg," "field" or "-."

  • 4

    Locate the two cables. The positive (red) cable goes to your battery via a wire loom or harness. The negative (black) cable attaches to a metal part of your car.

  • 5

    Check how the cables attach to the alternator terminals. Some connect using eyelets that hook over the terminal and tighten with a bolt; others connect by inserting the wire under the terminal and tightening a bolt.

  • 6

    Loosen the two bolts using a suitable-sized wrench or, if the cables connect using eyelets, remove the bolts.

  • 7

    Insert the exposed end of the negative (black) cable under the loosened bolt on the negative terminal of the alternator, then tighten the bolt. If the cable has an eyelet, hook it over the terminal and screw the bolt back in place and tighten using a wrench.

  • 8

    Insert the exposed end of the positive (red) cable under the loosened bolt on the positive terminal of the alternator, then tighten the bolt. If the cable has an eyelet, hook it over the terminal and screw the bolt back in place and tighten using a wrench.

  • 9

    Replace the positive battery cable on the positive battery terminal using a wrench. Replace the negative battery cable on the negative battery terminal.

  • May 17, 2011 | Jeep CJ Cars & Trucks

    1 Answer


    Hi, this is a 2 wire Delco alternator. The wire from the terminal on the back goes to the battery or starter, and the other (excite) wire goes to the battery light in the dash. It also goes to the PCM--not sure which pin, sorry.


    Mar 27, 2011 | 1995 Chevrolet Camaro

    1 Answer

    Replace alternator


    This is how you go about it;

    The serpintean belt must be taken off first, under the car remove the guard, the black piece of plastic in the front right. once thats done, there is a pulley that the serpentian belt is attached to. Look at diagram below>

    Serpentian belt diagram:
    --- and | | | is belt. ALT is alternator. Adj is tension pulley that you must pry toward alternator to create slack. (note: in order to do this you must jack up car, and go under.)

    | |
    | |
    ----------------_ |
    ---------------Adj |
    | |
    |_ _|

    Once you pry the Adj and create slack take the belt off. Next you must unscrew all screws on alternator including the wires attached to it. There is a wire attached on the back were it kinda clips off, and one that is screwed in it for the curren on the sidet.. Daewoo's unique design makes it so you have to actually climb under the car on jack, and take off the altinator mounting bracket screws under the alternator. Once this is done remove the alternator my taking it under the car, it should drop off when you remove the mounting screws. It should kinda slide out, but you have to work it around the exhaust. Take the alternator out, then replace it with a new one. Put the mounting screws on first while holing it with one hand. then put everything back together. Put the serpentian belt on the same way you took it off.

    NOTE: its quite a bit harder to put the belt back on. I used a wrenche to pry it loose then slid the belt on. Its is very hard to pry, especially with one hand and the belt in the other. But shouldn't be to hard if your strong. then reconnect the battery, and Bam there yah go. To test it take off one battery terminal while the car is on, if it still runs. you did it.

    Good luck!!!

    Aug 07, 2010 | 2000 Daewoo Leganza

    1 Answer

    Sometimes when I put the turn signal on either left or right (doesn't matter) the car shuts off. Doesn't matter if I am driving down the road or sitting still. Just barely hitting the turn signal switch...

    From what I've been told, the late 90s and up GM cars have the main steering column wiring harness bundled. It runs down the steering column, into the engine bay, and under the battery. Take a look at the area around the battery to see if it is leaking. If the battery is leaking, the fluid is both corrosive and conductive. If it leaks onto the harness, it may have eaten the wire jacketing on the harness wires. In that harness will be the wires for both your turn signals and your ignition switch. If they're shorted together, when you activate the turn signals, you may be killing the ignition.

    Dec 10, 2009 | 1997 Buick.5 Regal

    1 Answer

    The alternator on our GMC Vandura with a V8 350 engine 5.7L locked and caught on fire. It messed up the plug in the back and by messed up I mean it was completely melted away. I purchased a new...

    I can help regarding the polarity on my GMC 2500 Van alternator....
    Facing the rear of the alternator, the red wire attaches to the screw terminal on the left. The black (grd) attaches to the screw terminal on the right. The top has a connector with 2 spade terminals. - one (left tab) is the "r" or relay terminal and the right one is the 'f' or field terminal.

    Does this help... Red on left and blk on right....

    Jun 02, 2009 | GMC G2500 Cars & Trucks

    1 Answer

    Race car came with no Engine wires all unhooked to Charg/start

    The simplest most reliable ever made by any auto maker was the GM 10SI alternator. It has a large stud terminal in the back and a two wire connector in the side. Run a large wire from the battery to the stud on the back. Take the red wire in the connector put a ring terminal on it and attach it to the stud in the back. The white wire in the connector needs to be connected to one side of a small incandescent pilot light the other side of the light should be connected to a 12 volt source that is turned on and off by the ignition switch. If the bulb is off while the car is running and on when it isn't running then the alternator is working. This is simplest charging system anyone ever put in a car. The Ford IVR is similiar but has more wires.

    Mar 21, 2017 | 1983 Ford Fairmont

    2 Answers

    Electric windows

    A bit late to the party, but perhaps I can help. GM went to a cable-operated system of window regulator in the late 1990's, saving space and money. Both ends are anchored into a block in the middle that attaches to the bottom of the window regulator, so when the cable winds in one direction, the window goes up, and vice-versa. This block is a composite material, and, over time, it breaks, releasing one end of the cable. You have to replace the window regulator when this happens, and some models have the motor built into the regulator assembly. As with most other GM parts, the regulator costs GM about $12, but it's going to cost you about 40 times that at list price. Combine this with the two hours of labor required to change out the part, and you have an $800 repair bill.

    These units aren't repairable under normal conditions, partly because they are put together under tension and the metal parts are then welded together. So, rebuilts are not available.

    Jun 29, 2008 | 2001 Oldsmobile Aurora

    Not finding what you are looking for?
    Cars & Trucks Logo

    Related Topics:

    65 people viewed this question

    Ask a Question

    Usually answered in minutes!

    Top Chevrolet Experts


    Level 3 Expert

    79865 Answers

    Colin Stickland
    Colin Stickland

    Level 3 Expert

    22326 Answers

    Ronny Bennett Sr.
    Ronny Bennett Sr.

    Level 3 Expert

    6927 Answers

    Are you a Chevrolet Expert? Answer questions, earn points and help others

    Answer questions

    Manuals & User Guides