Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSVOLKSWAGEN1991JETTA L4-1984CC 2.0L DOHCREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTIGNITION SYSTEMDISTRIBUTORTESTING AND INSPECTION
1991 Volkswagen Jetta L4-1984cc 2.0L DOHC
Distributor: Testing and Inspection
1991 Volkswagen Jetta L4-1984cc 2.0L DOHCSECTION Testing and Inspection
1. Check for oil at the base of distributor (on the outside). If oil is present and leak comes from the distributor, check for cracks at the shaft. If no cracks are found, replace distributor O-ring.
2. Check the rest of the housing for damage.
3. Remove cap and rotor.
4. Check for oil on the inside of distributor. If oil is present and leak comes from distributor, replace and retest with new unit.
5. Check for drive and rotor shaft free play by moving the rotor shaft back/forth and left/right. There should be no or very little free play.
If shaft bushings are loose and free play is very noticeable, replace and retest with new distributor.
6. Reinstall cap and rotor.
2. Check the rest of the housing for damage.
3. Remove cap and rotor.
4. Check for oil on the inside of distributor. If oil is present and leak comes from distributor, replace and retest with new unit.
5. Check for drive and rotor shaft free play by moving the rotor shaft back/forth and left/right. There should be no or very little free play.
If shaft bushings are loose and free play is very noticeable, replace and retest with new distributor.
6. Reinstall cap and rotor.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.