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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET1993LUMINA APV V6-3800 3.8LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSFIELD FIXES
1993 Chevrolet Lumina APV V6-3800 3.8L
Field Fixes
1993 Chevrolet Lumina APV V6-3800 3.8LSECTION Field Fixes
SYMPTOM:
The vehicle may stall when coming to a full stop after a period of prolonged highway speed driving. The typical complaint will be that the vehicle will stall and shudder severely during full stops, shortly after highway driving. The stall may feel like you are coming to a stop on a vehicle with manual transmission, in high gear, without disengaging the clutch. Severe shudder during stopping usually occur.
CAUSE:
The Converter clutch engages during no-load, highway speed driving. The solenoid, which controls it, is supposed to disengage when the no-load, cruise speed condition exists. A faulty, sticking, or dirty solenoid may keep the solenoid from un-coupling the hydraulic link to the converter clutch. The direct lock-up will cause stalling during stops.
CORRECTION:
Diagnose converter clutch as required. Replace solenoid, inside transmission, if necessary.
The vehicle may stall when coming to a full stop after a period of prolonged highway speed driving. The typical complaint will be that the vehicle will stall and shudder severely during full stops, shortly after highway driving. The stall may feel like you are coming to a stop on a vehicle with manual transmission, in high gear, without disengaging the clutch. Severe shudder during stopping usually occur.
CAUSE:
The Converter clutch engages during no-load, highway speed driving. The solenoid, which controls it, is supposed to disengage when the no-load, cruise speed condition exists. A faulty, sticking, or dirty solenoid may keep the solenoid from un-coupling the hydraulic link to the converter clutch. The direct lock-up will cause stalling during stops.
CORRECTION:
Diagnose converter clutch as required. Replace solenoid, inside transmission, if necessary.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.