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 MANUALSCADILLAC1993DEVILLE BASE, 4D SEDANREPAIR AND DIAGNOSISBODY & FRAMESEATS - POWER MEMORYSYSTEM TESTSTEST D: AIR WILL NOT FILL LUMBAR SUPPORT BLADDER
1993 Cadillac DeVille Base, 4D Sedan
Test D: Air Will Not Fill Lumbar Support Bladder
1993 Cadillac DeVille Base, 4D SedanSECTION Test D: Air Will Not Fill Lumbar Support Bladder
TEST D
| Possible Cause | Correction |
|---|---|
| Loose Air Line Connections | Secure All Connections As Needed |
| Cuts In Air Hoses Or Tubes | Service Or Replace As Needed; See FRONT SEAT CUSHION Under REMOVAL & INSTALLATION |
| Kinked Air Hoses Or Tubes | Route Hoses Or Tubes As Needed |
| Worn Or Damaged Valve | Replace Valve; See FRONT SEAT CUSHION Under REMOVAL & INSTALLATION |
| Worn Or Damaged Lumbar Support Bladder | Replace Lumbar Support Bladder; See FRONT SEAT BACK Under REMOVAL & INSTALLATION |
| Worn Or Damaged Pump | Replace Pump; See FRONT SEAT CUSHION Under REMOVAL & INSTALLATION |
RENDER: 1.0x
NO RELATED
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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.