Question about 1990 Pontiac Grand Am

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Replacing distributor cap - 1990 Pontiac Grand Am

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  • Pontiac Master
  • 5,678 Answers

What problem ,could be spark plugs,wire ,rotor and distributor cap.

Posted on May 03, 2013

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Posted on Jan 02, 2017

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How to Replace a Distributor Cap in Toyota?


Its a plastic cap and and on its top the sparks wires get connected.A small plastic rotor spins inside the distributor cap, firing each spark plug as it rotates. If the distributor gets faulty there the engine may not perform well. in most cases it has been noticed that only replacing the cap does not helps but with cap the rotors also need to be replaced. The procedure is as follows:--- 1) First of all disconnect the negative battery terminal. 2) Then remove the spark-plug wires . Note:-- Before removing the spark plug wires please note down how and where the wires are connected,then only remove the connections. 3) Then on the distributor there will be a cap.remove that cap.the cap is connected by two pins.you will have to press the pins from each side to loosen the distributor cap.Then lift the distributor cap from the top. 4)Then remove the rotor From distributor The rotor is fitted with two screws.Remove the screws and loosen the rotor. 5) Then lift the rotor out from its shaft. 6) To install new rotor and cap.reverse the procedure. This will help.Thanks.

on Mar 25, 2010 | Toyota Corolla Cars & Trucks

1 Answer

I have a 92 passat GL that chuggs, jolts, then dies when I shift into 1st. The distributor cap falls down(still clipped in) trashing cap and rotor both. I've replaced cap and rotor 4 times in the last...


If the distributor cap falls down onto the rotor button then you have the wrong distributor cap and it is too big for your distributor. Run fault codes to check for accelerator position sensor fault and check MAP/MAF sensors.

Nov 02, 2013 | 1992 Volkswagen Passat

1 Answer

Is it hard to change distributor on 2000 nissan pathfinder


Hi there;This is for a 2000 Nissan Truck Pathfinder 4WD 3.3L SFI 6cyl


Distributor Cap & Rotor - Removal & Installation


NOTE
The 1996-00 3.3L engines were equipped with a distributor.


Disconnect the negative battery cable.
If the distributor cap is to be replaced, mark the ignition wires for identification and remove them from the distributor cap.
Remove any components necessary to access the distributor cap.
Completely loosen the distributor cap mounting fasteners.
Carefully remove the distributor cap, taking care not to damage the cap seal or rotor, then position the cap aside.
If necessary, remove the rotor retainer.
Carefully lift the rotor off the distributor shaft.
NOTE
Inspect the distributor cap to housing seal for damage and/or cracks. Replace if cracks are detected.




To install:


Install the rotor onto the distributor shaft and tighten the rotor mounting fastener, if equipped.
Position the distributor cap seal on the distributor housing, then position the distributor cap on the housing.
Install the distributor cap by tightening the mounting fasteners in a crisscross pattern. Use care to not over-tighten the fasteners.
Reconnect the spark plug wires, making sure to install them exactly in the same position from which they were removed.
Reconnect the negative battery cable.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Jun 06, 2012 | Nissan Pathfinder Cars & Trucks

1 Answer

What are all of the parts needed for a tuneup for my 95 quests


Spark plugs, spark plug wires, distributor cap, and distributor rotor. If you replace all of these you would be doing what is called a major tune-up.

A regular tune-up would be just replacing the spark plugs.

You can check the integrity of the plug wires and distributor cap by spraying them with water while the engine is running. If the engine runs ruff, stall, or you see spark arcing from either the wires or the distributor cap than they will need to be replaced.

The distributor rotor always gets replaced when you replace the distributor cap.

You can also spray the coil with soapy water to see if it is leaking as well.

Oct 02, 2010 | 1995 Nissan Quest

1 Answer

My 2003 gmc v6 just had its plugs and wires and distributor cap and button changed and i put the distributor button on wrong, it ran fine 4 a mon. or 2 and one of the screws came out of the button and...


The distributor cap and/or the ignition rotor most likely have a crack somewhere and the distributor cap should be replaced along with the ignition rotor. The ignition module could have been damaged as well as the ignition pick-up coil/stator and if replacing the distributor cap and ignition rotor does not solve the problem then the ignition module or the pick-up coil/stator assembly inside of the distributor is also most likely damaged and the distributor will need to be replaced. There is a certain procedure for removing and replacing the distributor, and the ignition timing is not adjustable and it is not set using a timing light or with the engine running, and if you do have to replace the distributor Let me know if you require the procedure to properly remove and replace the distributor or if you require any further assistance.

Aug 17, 2010 | 2003 GMC Sierra 1500

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Code 17 on a mazda 626 1992 lx what does it mean


The OBD-1 two digits trouble codes listed 'code-17' as:
Oxygen sensor.

This means that the fuel and ignition systems performance are in need of attention.

1.Distributor Cap: remove the 3-bolts holding the distriboutr to its body.
2. Inspect the distributor cap for cracks, and the roror-button is not worn or broken.
3. Inspect the distributor-cap terminals are not corroded or charred. Replace if charred. Clean them out if corroded.
4. Check the distributor-rotor for cracks or corrosion on its tip, and lesser spring tension.
Replace as necessary.
5. Reverse steps 1-4 to re-install distributor cap. Be sure to remove and replace the plug wires from the old distributor-cap to the new distributor-cap one-by-one. If not, the engine would not run.

Fuel-Filter:
1. Undo the top clips holding the fuel-filter hose, and undo the lower clips also.
2. Take out the fuel-filter from its mount.
3. Replace the fuel filter as necessary.(please not the way it was mounted) Reverse removal for installation.

Dec 11, 2009 | 1992 Mazda 626

1 Answer

Just got answer from Matthew about replacing distributor cap on 1999 Sebring. Thanks, but what I really needed to know is if the intake manifold and all the other parts that eneded to com off to replace 3...


Not sure about your engine size so please pick your model:

2.5L Engine
  1. Before servicing the vehicle, refer to the Precautions section.
  2. Remove or disconnect the following:
    • Bolt holding air inlet resonator to intake manifold.
    • Clamps holding air cleaner cover to air cleaner housing.
    • PCV make-up air hose from air inlet tube.
    • Hose clamp at throttle body.
    • Air inlet tube, resonator and air cleaner cover.
    • EGR tube.
    • Spark plug cables from distributor cap.
  3. Loosen distributor cap hold down screws and remove cap
    NOTE The rotor is friction-fitted to the distributor shaft and can be pulled straight off.

  4. Transfer cables from old cap to new cap. The cap and cables are numbered with their corresponding cylinder numbers.
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Distributor cap—2.5L and 3.0L Engines

To install:

  1. Install or connect the following:
    • Distributor cap.
    • Distributor holddown washers and nuts and torque to 9 ft. lbs (13 Nm)
    • EGR tube.
    • Air inlet tube, resonator and air cleaner cover.
    • Hose clamp at throttle body.
    • PCV make-up air hose from air inlet tube.
    • Clamps holding air cleaner cover to air cleaner housing and securely tighten.
    • Bolt holding air inlet resonator to intake manifold and securely tighten.


3.0L Engine
  1. Before servicing the vehicle, refer to the Precautions section.
  2. Remove or disconnect the following:
    • Air cleaner
    • Spark plug cables from distributor cap.
  3. Loosen distributor cap hold down screws and remove cap
    NOTE The rotor is friction-fitted to the distributor shaft and can be pulled straight off.

  4. Transfer cables from old cap to new cap. The cap and cables are numbered with their corresponding cylinder numbers.
To install:

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Distributor cap—2.5L and 3.0L Engines

    1. Install or connect the following:
    2. Distributor rotor
    • Distributor cap
    NOTE Make sure the new cap has an O-ring in its base.

    • Distributor holddown washers and nuts and torque to 20 inch lbs. (2.3 Nm)
    • Air cleaner
  • Oct 26, 2009 | 1999 Chrysler Sebring

    1 Answer

    I need to install a distrubuter, need to know how to find top dead centre etc.


    Distributor Cap grey_line.gif Inspect | Replace The distributor cap should be removed for visual inspection. Check the cap for:

    0900823d8004cf5d.gif

    Inspect the distributor cap and rotor. Courtesy of American Honda Motor Co., Inc.
    • Distributor cap locating tab. This tab assures proper location of the cap onto the distributor housing.
    • Distributor cap holddown. The distributor cap must be securely attached to the distributor housing to prevent contamination and to assure its location.
    • Dirt and water in the cap. These contaminants will require additional voltage in order to fire the spark plug. If available voltage is not enough to overcome this resistance then no spark will occur at the spark plug.
    • Center carbon insert. All of the high voltage coming through the coil on its way to the spark plug must pass through this insert. Any additional resistance caused by wear or contamination can cause the engine not to start or to misfire.
    • Tower inserts. The inserts are made from aluminum or bass so it is possible for them to oxidize. Aluminum oxide is an abrasive that can cause excessive damage to the distributor. If the insert is made from brass then the oxidation will appear green in color.
    • Cracks. If any cracks are present on the distributor cap then replacement of the part is required.
    • Carbon tracking. Carbon tracking indicates that the high-voltage of electricity has found a low-resistance conductive path over or through the plastic. The result is a cylinder that fires at the wrong time, or a misfire.
    Also check for:
    • Physical or electrical damage is easily recognizable.
    • Electrical damage from high voltage can include corroded or burned metal terminals and carbon tracking inside distributor caps.

    0900823d8004cf5e.gif

    Things to look for when inspecting a distributor cap.
    • If the distributor cap has a mild buildup of dirt or corrosion, it should be cleaned. If it cannot be cleaned up, it should be replaced. Small round brushes are available to clean cap terminals.
    • Wipe the cap and with a clean shop towel, but avoid cleaning these components in solvent or blowing them off with compressed air, which may contain moisture. Cleaning these components with solvent or compressed air may result in high-voltage leaks.
    • Check the distributor cap and housing vents. Make sure they are not blocked or clogged. If they are, the internal ignition module will overheat. It is good practice to check these vents whenever a module is replaced.
    Replace Distributor cap replacement instructions vary, so always follow the manufacturer's instructions.
    General replacement procedures are as follows:
    • For spring-loaded caps, unsnap the clips and remove the cap. When installing the new cap, make sure the clips are snapped back into place.
    • For spring-loaded j-hook caps, push down and turn. It will unlock. Lift up to remove it. Position the new cap in place, then push down and turn to lock.
    • For caps with screws, use a screwdriver to loosen the two screws. Install the new cap and use the screwdriver to tighten the screws. Don't overtighten.
    It is a good idea when replacing the distributor cap to remove the cap with the ignition wires attached. After you have installed the new cap, transfer the wires one by one onto the cap in their correct position. This way the firing order is accurate. If, for some reason after you replace the distributor cap, your vehicle does not function normally, check your firing sequence.
    The distributor cap is mounted on top of the distributor assembly and an alignment notch in the cap fits over a matching lug on the housing. Therefore the cap can only be installed in one position, which assures the correct firing sequence. There is a tab or notch somewhere on the distributor body that must align somewhere on the distributor body that must align with a corresponding tab or notch in the cap. Once again, do not force something.
    The rotor should be inspected and/or replaced when the distributor cap is replaced.

    Firing Order Each cylinder of an engine must produce power once in every 720 degrees of crankshaft rotation. Each cylinder must have a power stroke at its own appropriate time during the rotation. To make this possible, the pistons and rods are arranged in a precise fashion. This is called the engine's firing order. The firing order is arranged to reduce rocking and imbalance problems. Because the potential for this rocking is determined by the design and construction of the engine, the firing order varies from engine to engine. Vehicle manufacturers simplify cylinder identification by numbering each cylinder.

    0900823d8004cf75.gif

    Examples of typical firing order.
    Regardless of the particular firing order used, the #1 cylinder always starts the firing order, with the rest of the cylinders following in a fixed sequence. The ignition system must be able to monitor the rotation of the crankshaft and the relative position of each piston to determine which piston is on its compression stroke. It must also be able to deliver a high-voltage surge to each cylinder at the proper time during its compression stroke. How the ignition system does these things depends on the design of the system.

    Nov 19, 2008 | Ford F Cars & Trucks

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