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 MANUALSCHEVROLET2005IMPALA BASE, 3.8 KREPAIR AND DIAGNOSISTRANSMISSIONAUTOMATIC TRANSAUTOMATIC TRANSAXLE - INTRODUCTION & REPAIR INSTRUCTIONSSPECIFICATIONSSHIFT SPEED

2005 Chevrolet Impala Base, 3.8 K

Shift Speed

2005 Chevrolet Impala Base, 3.8 KSECTION Shift Speed

Shift Speed

		1-2 Shift @ +/- 3 mph Output Shaft Speed			2-3 Shift @ +/- 4 mph Output Shaft Speed			3-4 Shift @ +/- 5 mph Output Shaft Speed			4-3 @ +/- 4 mph Output Shaft Speed		3-2 @ +/- 4 mph Output Shaft Speed		2-1 @ +/- 4 mph Output Shaft Speed		3rd Gear TCC Apply		4th Gear TCC Apply
% of TPS		12	25	50	12	25	50	12	25	50	0	50	0	50	0	50	12	25	12	25
Model	Axle
LBB	F83	17	24	36	26	39	56	46	65	N/A	40	62	19	36	12	10	30	50	45	65
LCB	FR9	16	24	33	25	40	60	48	65	100	37	53	18	47	10	10	30	50	44	64
RDB	FQ3	15	21	32	28	35	59	46	59	N/A	33	52	18	34	11	10	32	N/A	36	N/A
LDB	FR9	16	24	33	25	40	60	48	65	100	37	50	18	47	12	10	30	50	47	64
CAB	FR2	17	24	36	26	39	56	46	65	N/A	40	62	19	36	12	10	30	50	45	65

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.