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 MANUALSBUICK1995RIVIERA V6-3.8L SC VIN 1REPAIR AND DIAGNOSISA L L DIAGNOSTIC TROUBLE CODES ( DTC )
1995 Buick Riviera V6-3.8L SC VIN 1
A L L Diagnostic Trouble Codes ( DTC )
1995 Buick Riviera V6-3.8L SC VIN 1SECTION A L L Diagnostic Trouble Codes ( DTC )
Testing and Inspection- Diagnostic Trouble Code Descriptions
- P Code Charts
- Manufacturer Code Charts
- DTC 08
- DTC 10
- DTC 13
- DTC 14
- DTC 15
- DTC 16
- DTC 17
- DTC 18
- DTC 19
- DTC 21
- DTC 22
- DTC 23
- DTC 24
- DTC 25
- DTC 26
- DTC 27
- DTC 28
- DTC 31
- DTC 32
- DTC 33
- DTC 34
- DTC 35
- DTC 36
- DTC 37
- DTC 38
- DTC 41
- DTC 42
- DTC 43
- DTC 44
- DTC 45
- DTC 46
- DTC 48
- DTC 51
- DTC 52
- DTC 53
- DTC 54
- DTC 55
- DTC 56
- DTC 61
- DTC 62
- DTC 71
- DTC 72
- DTC 73
- DTC 74
- DTC 75
- DTC 76
- DTC 77
- DTC 81
- DTC 82
- DTC 83
- DTC 84
- DTC 340
- DTC 341
- DTC 349
- DTC 350
- DTC 351
- Related Tests, Information and Procedures
- A Charts
- B Charts
- C Charts
- Chart C-2A Injector Coil Balance Test Procedure
- Chart C-2B Idle Air Control (IAC) System Check
- Chart C-3 EVAP Canister Purge Valve Check
- Chart C-4 Ignition Misfire Check
- Chart C-5 Knock Sensor (KS) System Check
- Chart C-7 Exhaust Gas Recirculation (EGR) Flow Check
- Chart C-8A Torque Converter Clutch (TCC) Functional Check
- Chart C-8B Shift Solenoid Functional Check (4T60E Transaxle)
- Chart C-10 A/C Clutch Control Circuit Diagnosis
- Chart C-12A Coolant Fan Functional Check
- Chart C-12B No Low Speed Cooling Fan
- Chart C-12C-A No High Speed Primary Cooling Fan
- Chart C-12C-B No High Speed Secondary Cooling Fan
- Chart C-12D-A Low Speed Fan(s) On at All Times
- Chart C-12D-B High Speed Fan(s) On at All Times
- Chart C-17 Cruise Control System Check
- Chart C-18 Boost Control Solenoid Functional Check
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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.