Safety Warning

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HOMESERVICE MANUALSCHEVROLET1987PICKUP V10, 4.3 Z, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESPECIFICATIONSE4ME 4-BBL SPECIFICATIONSPECIFICATIONS - ROCHESTER E4ME CARBURETOR5.0L V8, (VIN H)

1987 Chevrolet Pickup V10, 4.3 Z, Automatic

5.0L V8, (VIN H)

1987 Chevrolet Pickup V10, 4.3 Z, AutomaticSECTION 5.0L V8, (VIN H)

ROCHESTER E4ME CARBURETOR SPECS (5.0L VIN "H")

Carburetor Number			Specification
17081202
TPS			.56 Volts, At Curb Idle With ISC Retracted.
ISC
Minimum			ISC Not Used.
Maximum			ISC Not Used.
Idle Mixture			Set Rich Stop Screw At 4/32". Set Air Bleed Setting 1.756.
Lean Screw			1.304
Idle Screw			3
Vacuum Break
Primary			26°
Secondary			N/A
17081203
TPS			.56 Volts, At Curb Idle With ISC Retracted.
ISC
Minimum			ISC Not Used.
Maximum			ISC Not Used.
Idle Mixture			Set Rich Stop Screw At 4/32". Set Air Bleed Setting 1.756.
Lean Screw			1.304
Idle Screw			3
Vacuum Break
Primary			26°
Secondary			N/A
17081204
TPS			.56 Volts, At Curb Idle With ISC Retracted.
ISC
Minimum			ISC Not Used.
Maximum			ISC Not Used.
Idle Mixture			Set Rich Stop Screw At 4/32". Set Air Bleed Setting 1.756.
Lean Screw			1.304
Idle Screw			3 1/4
Vacuum Break
Primary			26°
Secondary			N/A
17081207
TPS			.56 Volts, At Curb Idle With ISC Retracted.
ISC
Minimum			ISC Not Used.
Maximum			ISC Not Used.
Idle Mixture			Set Rich Stop Screw At 4/32". Set Air Bleed Setting 1.756.
Lean Screw			1.304
Idle Screw			3
Vacuum Break
Primary			26°
Secondary			N/A
17081219
TPS			.56 Volts, At Curb Idle With ISC Retracted.
ISC
Minimum			ISC Not Used.
Maximum			ISC Not Used.
Idle Mixture			Set Rich Stop Screw At 4/32". Set Air Bleed Setting 1.756.
Lean Screw			1.304
Idle Screw			3
Vacuum Break
Primary			26°
Secondary			N/A
17081222
TPS			.56 Volts, At Curb Idle With ISC Retracted.
ISC
Minimum			ISC Not Used.
Maximum			ISC Not Used.
Idle Mixture			Set Rich Stop Screw At 4/32". Set Air Bleed Setting 1.756.
Lean Screw			1.304
Idle Screw			3 1/4
Vacuum Break
Primary			26°
Secondary			N/A
17082202
TPS			.51 Volts, At Curb Idle With ISC Retracted.
ISC
Minimum			470, In Drive.
Maximum			900, In Drive.
Idle Mixture			Set Rich Stop Screw At 4/32". Set Air Bleed Setting 1.756.
Lean Screw			1.304
Idle Screw			2 1/2
Vacuum Break
Primary			27°
Secondary			N/A
17082203
TPS			.51 Volts, At Curb Idle With ISC Retracted.
ISC
Minimum			240, In Drive.
Maximum			900, In Drive.
Idle Mixture			Set Rich Stop Screw At 4/32". Set Air Bleed Setting 1.756.
Lean Screw			1.304
Idle Screw			2 1/2
Vacuum Break
Primary			27°
Secondary			N/A
17082204
TPS			.51 Volts, At Curb Idle With ISC Retracted.
ISC
Minimum			470, In Drive.
Maximum			900, In Drive.
Idle Mixture			Set Rich Stop Screw At 4/32". Set Air Bleed Setting 1.756.
Lean Screw			1.304
Idle Screw			2 1/2
Vacuum Break
Primary			27°
Secondary			N/A
17082207
TPS			.51 Volts, At Curb Idle With ISC Retracted.
ISC
Minimum			470, In Drive.
Maximum			900, In Drive.
Idle Mixture			Set Rich Stop Screw At 4/32". Set Air Bleed Setting 1.756.
Lean Screw			1.304
Idle Screw			2 1/2
Vacuum Break
Primary			27°
Secondary			N/A
17082232
TPS			.51 Volts, At Curb Idle With ISC Retracted.
ISC
Minimum			470, In Drive.
Maximum			900, In Drive.
Idle Mixture			Set Rich Stop Screw At 4/32". Set Air Bleed Setting 1.756.
Lean Screw			1.304
Idle Screw			3
Vacuum Break
Primary			27°
Secondary			N/A
17082236
TPS			.51 Volts, At Curb Idle With ISC Retracted.
ISC
Minimum			470, In Drive.
Maximum			900, In Drive.
Idle Mixture			Set Rich Stop Screw At 4/32". Set Air Bleed Setting 1.756.
Lean Screw			1.304
Idle Screw			3
Vacuum Break
Primary			27°
Secondary			N/A
17082237
TPS			.51 Volts, At Curb Idle With ISC Retracted.
ISC
Minimum			470, In Drive.
Maximum			900, In Drive.
Idle Mixture			Set Rich Stop Screw At 4/32". Set Air Bleed Setting 1.756.
Lean Screw			1.304
Idle Screw			3
Vacuum Break
Primary			17°
Secondary			N/A
17083205
TPS			.51 Volts, At Curb Idle With ISC Retracted.
ISC
Minimum			470, In Drive.
Maximum			900, In Drive.
Idle Mixture			Set Rich Stop Screw At 4/32". Set Air Bleed Setting 1.756.
Lean Screw			1.304
Idle Screw			3 3/8
Vacuum Break
Primary			27°
Secondary			N/A
17083206
TPS			.51 Volts, At Curb Idle With ISC Retracted.
ISC
Minimum			470, In Drive.
Maximum			900, In Drive.
Idle Mixture			Set Rich Stop Screw At 4/32". Set Air Bleed Setting 1.756.
Lean Screw			1.304
Idle Screw			3 3/8
Vacuum Break
Primary			27°
Secondary			N/A
17084201
TPS			.48 Volts, At Curb Idle With ISC Retracted.
ISC
Minimum			475, In Drive.
Maximum			750, In Drive.
Idle Mixture			Set Rich Stop Screw At 4/32". Set Air Bleed Setting 1.756.
Lean Screw			1.304
Idle Screw			3 3/32
Vacuum Break
Primary			27°
Secondary			N/A
17084209
TPS			.48 Volts, At Curb Idle With ISC Retracted.
ISC
Minimum			475, In Drive.
Maximum			750, In Drive.
Idle Mixture			Set Rich Stop Screw At 4/32". Set Air Bleed Setting 1.756.
Lean Screw			1.304
Idle Screw			3 3/8
Vacuum Break
Primary			27°
Secondary			N/A
17086005
TPS			.54 Volts, At Curb Idle With ISC Retracted.
ISC
Minimum			ISC Not Used.
Maximum			ISC Not Used.
Idle Mixture			Set Rich Stop Screw At 4/32". Set Air Bleed Setting 1.756.
Lean Screw			1.304
Idle Screw			3
Vacuum Break
Primary			27°
Secondary			N/A
17087030
TPS			.54 Volts, At Curb Idle With ISC Retracted.
ISC
Minimum			ISC Not Used.
Maximum			ISC Not Used.
Idle Mixture			Set Rich Stop Screw At 4/32". Set Air Bleed Setting 1.756.
Lean Screw			1.304
Idle Screw			3
Vacuum Break
Primary			27°
Secondary			N/A
17087031
TPS			.54 Volts, At Curb Idle With ISC Retracted.
ISC
Minimum			ISC Not Used.
Maximum			ISC Not Used.
Idle Mixture			Set Rich Stop Screw At 4/32". Set Air Bleed Setting 1.756.
Lean Screw			1.304
Idle Screw			3
Vacuum Break
Primary			27°
Secondary			N/A

RENDER: 1.0x

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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.