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 MANUALSCADILLAC1997SEVILLE SLS V8-4.6L VIN YREPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINAUTOMATIC TRANSMISSION/TRANSAXLETESTING AND INSPECTIONINITIAL INSPECTION AND DIAGNOSTIC OVERVIEWSHIFT CONDITIONS
1997 Cadillac Seville SLS V8-4.6L VIN Y
Shift Conditions
1997 Cadillac Seville SLS V8-4.6L VIN YSECTION Shift Conditions
Bump: A sudden and forceful apply of a clutch or a band.
Chuggle: A bucking or jerking. This condition may be most noticeable when the converter clutch is engaged. It is similar to the feel of towing a trailer.
Delayed: A condition where a shift is expected but does not occur for a period of time. This could be described as a clutch or band engagement that does not occur as quickly as expected during a part throttle or wide open throttle apply of the accelerator, or during manual downshifting to a lower range. This term is also defined as LATE or EXTENDED.
Double Bump (Double Feel): Two sudden and forceful applies of a clutch or a band.
Early: A condition where the shift occurs before the car has reached proper speed. This condition tends to labor the engine after the upshift. End Bump: A firmer feel at the end of a shift than at the start of the shift. This is also defined as END FEEL or SLIP BUMP.
Firm: A noticeably quick apply of a clutch or band that is considered normal with a medium to heavy throttle. This apply should not be confused with HARSH or ROUGH.
Flare: A quick increase in engine RPM along with a momentary loss of torque. This most generally occurs during a shift. This condition is also defined as SLIPPING.
Harsh (Rough): A more noticeable apply of a clutch or band than FIRM. This condition is considered undesirable at any throttle position.
Hunting: A repeating quick series of upshifts and downshifts that causes a noticeable change in engine RPM, such as a 4-3-4 shift pattern. This condition is also defined as BUSYNESS.
Initial Feel: A distinctly firmer feel at the start of a shift than at the finish of the shift.
Late: A shift that occurs when the engine's RPM is higher than normal for a given amount of throttle.
Shudder: A repeating jerking condition similar to CHUGGLE but more severe and rapid. This condition may be most noticeable during certain ranges of car speed.
Slipping: A noticeable increase in engine RPM without a car speed increase. A slip usually occurs during or after initial clutch or band apply.
Soft: A slow, almost unnoticeable clutch or band apply with very little shift feel.
Surge: A repeating engine related condition of acceleration and deceleration that is less intense than CHUGGLE.
Tie-up: A condition where two opposing clutch and/or bands are attempting to apply at the same time causing the engine to labor with a noticeable loss of engine RPM.
Chuggle: A bucking or jerking. This condition may be most noticeable when the converter clutch is engaged. It is similar to the feel of towing a trailer.
Delayed: A condition where a shift is expected but does not occur for a period of time. This could be described as a clutch or band engagement that does not occur as quickly as expected during a part throttle or wide open throttle apply of the accelerator, or during manual downshifting to a lower range. This term is also defined as LATE or EXTENDED.
Double Bump (Double Feel): Two sudden and forceful applies of a clutch or a band.
Early: A condition where the shift occurs before the car has reached proper speed. This condition tends to labor the engine after the upshift. End Bump: A firmer feel at the end of a shift than at the start of the shift. This is also defined as END FEEL or SLIP BUMP.
Firm: A noticeably quick apply of a clutch or band that is considered normal with a medium to heavy throttle. This apply should not be confused with HARSH or ROUGH.
Flare: A quick increase in engine RPM along with a momentary loss of torque. This most generally occurs during a shift. This condition is also defined as SLIPPING.
Harsh (Rough): A more noticeable apply of a clutch or band than FIRM. This condition is considered undesirable at any throttle position.
Hunting: A repeating quick series of upshifts and downshifts that causes a noticeable change in engine RPM, such as a 4-3-4 shift pattern. This condition is also defined as BUSYNESS.
Initial Feel: A distinctly firmer feel at the start of a shift than at the finish of the shift.
Late: A shift that occurs when the engine's RPM is higher than normal for a given amount of throttle.
Shudder: A repeating jerking condition similar to CHUGGLE but more severe and rapid. This condition may be most noticeable during certain ranges of car speed.
Slipping: A noticeable increase in engine RPM without a car speed increase. A slip usually occurs during or after initial clutch or band apply.
Soft: A slow, almost unnoticeable clutch or band apply with very little shift feel.
Surge: A repeating engine related condition of acceleration and deceleration that is less intense than CHUGGLE.
Tie-up: A condition where two opposing clutch and/or bands are attempting to apply at the same time causing the engine to labor with a noticeable loss of engine RPM.
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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.