Starter

Remove and replace the starter motor on a 1992 Dodge Viper 8.0L V10, including disconnection of battery and electrical connections, removal of exhaust components for access, and proper torque of mounting hardware.

Warnings

Tools required

Parts

• Starter motor × 1 — Mopar 4686144 or equivalent high-torque gear reduction starter
• Exhaust gaskets (if damaged during removal) × 1 — Use OEM specification

Preparation

1. Ensure the vehicle is on level ground and the transmission is in first gear (manual) or Park (if applicable).
2. Place wheel chocks behind the rear wheels.
3. Open the hood and locate the battery in the rear cargo area behind the seats (access through interior).
4. Disconnect the negative battery cable first, then the positive cable. Secure cables away from battery terminals.
5. Raise the front of the vehicle using a floor jack and support securely on jack stands rated for the vehicle weight.
6. Raise the rear of the vehicle if additional clearance is needed and support on jack stands.
7. Allow exhaust system to cool completely if engine was recently running (minimum 2 hours).

Procedure

1. 1

   Access the starter area
   Working from underneath the vehicle, locate the starter motor on the driver side of the engine, mounted to the lower rear section of the bell housing. The starter is positioned between the engine block and the exhaust system. Inspect the area to determine if exhaust component removal is necessary for adequate access. On the 1992 Viper, exhaust components on the side where the starter is mounted may need to be loosened or removed for full access to the starter mounting bolts and electrical connections; verify starter location and interfering exhaust routing on the actual vehicle.
2. 2

   Remove interfering exhaust components
   If the exhaust system blocks access to the starter, remove the driver-side exhaust pipe from the manifold connection. Apply penetrating oil to exhaust fasteners and allow to soak for 10-15 minutes. Remove the exhaust manifold-to-pipe flange bolts (typically 2 bolts per connection). Support the exhaust pipe and separate it from the manifold. Lower the pipe enough to provide clear access to the starter. Do not fully remove the pipe unless necessary; creating working clearance is sufficient.
3. 3

   Disconnect the starter solenoid wiring
   Locate the electrical connections on the starter solenoid (on top or side of the starter body). Identify the large B+ terminal with the heavy battery cable and the smaller S-terminal with the signal wire. Remove the nut securing the B+ battery cable to the solenoid terminal. Pull the cable terminal straight off the stud. Disconnect the S-terminal wire by either removing the retaining nut or unplugging the connector, depending on configuration. Secure wiring away from the starter to prevent damage during removal.
   Torque spec

   Starter Solenoid Nut12 Nm (9 lb-ft)
4. 4

   Support the starter motor
   Position yourself or use a helper to support the weight of the starter motor. The starter weighs approximately 15 pounds and will drop once the mounting bolts are removed. Use one hand or have a helper hold the starter body from below while you remove the bolts. Alternatively, use a transmission jack or wooden block to support the starter from underneath.
5. 5

   Remove the starter mounting bolts
   Locate the starter mounting bolts securing the starter to the bell housing. The 1992 Viper V10 starter is typically secured by 2 bolts (verify exact count and lengths on the actual vehicle). The upper bolt may be shorter and the lower bolt longer, extending through the starter nose and into the bell housing. Using the appropriate socket and extension, remove the upper mounting bolt first, then the lower mounting bolt. Keep track of bolt positions as they may be different lengths. If the lower bolt is difficult to access, a long extension or universal joint may be required.
   Torque spec

   Starter Mounting Bolts50 Nm (37 lb-ft)
6. 6

   Remove the starter motor
   With both mounting bolts removed and the starter supported, carefully pull the starter straight away from the bell housing. The starter nose (drive end) is located in a recess in the bell housing and must be withdrawn carefully to avoid binding. Once the nose clears the housing, lower the starter and remove it from the vehicle. Inspect the starter mounting surface on the bell housing for damage or debris.
7. 7

   Inspect and prepare mounting surfaces
   Clean the starter mounting surface on the bell housing using a wire brush to remove any rust, dirt, or old gasket material. Inspect the mounting bolt holes for damage or stripped threads. Clean the bolt threads with a wire brush. Inspect the flywheel/flexplate ring gear teeth (visible through the starter opening) for damage, wear, or missing teeth. If ring gear damage is present, the flywheel/flexplate will require replacement (separate procedure).
8. 8

   Prepare the new starter
   Inspect the new or replacement starter motor. Verify that the starter drive pinion gear moves freely and springs back when pushed in. Check that the starter nose (drive end) matches the original starter dimensions. If the replacement starter does not include pre-attached wiring terminals, transfer the terminals from the old starter solenoid if compatible. Ensure the mounting bolt holes align with the bell housing pattern.
9. 9

   Install the starter motor
   Position the starter motor with the nose (drive end) aligned with the bell housing recess. Carefully guide the starter nose into the bell housing opening, ensuring proper engagement with the locating dowel or recess. Push the starter fully into position against the bell housing mounting surface. The starter body should sit flush against the bell housing. Support the starter in position while installing the mounting bolts.
10. 10

    Install and torque the starter mounting bolts
    Thread the upper and lower starter mounting bolts by hand, ensuring they engage properly without cross-threading. Install the longer bolt in the lower position and the shorter bolt in the upper position if they differ in length. Tighten the bolts in an alternating pattern (upper, then lower, then upper again) to draw the starter evenly against the bell housing. Using a torque wrench, torque both mounting bolts to the manufacturer-specified value (approximately 50 Nm / 37 lb-ft for typical M10 starter bolts — verify against factory service data). Verify the starter is seated firmly and does not rock or have gaps at the mounting surface.
    Torque spec

    Starter Mounting Bolts50 Nm (37 lb-ft)
11. 11

    Reconnect the starter solenoid wiring
    Reconnect the S-terminal signal wire to the starter solenoid by threading the nut onto the terminal stud or plugging in the connector, depending on configuration. Position the large B+ battery cable terminal onto the solenoid B+ terminal stud. Thread the retaining nut onto the stud by hand, then tighten to the manufacturer-specified value (approximately 12 Nm / 9 lb-ft — verify against factory service data) using a torque wrench. Ensure both connections are secure and that no wires are pinched, stretched, or contacting exhaust components.
    Torque spec

    Starter Solenoid Nut12 Nm (9 lb-ft)
12. 12

    Reinstall exhaust components
    If exhaust components were removed or loosened, reposition the driver-side exhaust pipe to the manifold flange. Install new exhaust gaskets if the originals were damaged or compressed. Thread the flange bolts by hand and tighten in a cross pattern to ensure even sealing. Torque exhaust flange bolts to manufacturer specification. Verify the exhaust pipe has adequate clearance from the starter and does not contact the starter body or wiring.
13. 13

    Reconnect the battery
    Lower the vehicle from jack stands. Access the battery in the rear cargo area. Clean the battery terminals and cable ends with a terminal cleaner or wire brush if corrosion is present. Reconnect the positive battery cable first, tightening the terminal clamp securely. Reconnect the negative battery cable last, tightening the terminal clamp securely. Ensure both connections are tight and will not pull free.

Reassembly

1. Reassembly is detailed in the installation steps above.
2. Ensure all electrical connections are tight and properly routed away from heat and moving components.
3. Verify exhaust components are properly sealed and torqued to prevent leaks.
4. Double-check that no tools or parts were left in the engine compartment or under the vehicle.

Verification

• Turn the ignition key to the 'Start' position (do not start the engine yet) and listen for the starter solenoid click. This verifies electrical signal is reaching the starter.
• Start the engine and listen for smooth starter engagement without grinding, chattering, or excessive noise. The engine should crank smoothly and start normally.
• After starting, listen for any unusual noises from the starter area that might indicate a loose mounting bolt or interference with the flywheel.
• Turn off the engine and check the starter mounting bolts for tightness. Verify no exhaust leaks are present at any disturbed exhaust connections.
• Test start the engine 2-3 times from cold to verify consistent starter operation.
• Inspect the area around the starter for any fluid leaks, loose wiring, or other issues that may have been disturbed during the repair.

Related trouble codes on this vehicle

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