How Is the Oil Pressure Switch and VTEC Solenoid Valve Replaced on Acura TL?

A low-lift, short-duration camshaft intake lobe provides good torque, quick response, fuel economy, and low emissions at lower engine speeds, but struggles to deliver adequate air/fuel mixture at higher speeds, while a high-lift, long-duration intake cam lobe excels in power at high speeds but results in a lumpy idle, poor driveability, fuel wastage, and unacceptable emissions at lower speeds, leading to a compromise between economy and performance. The Variable Valve Timing and Lift Electronic Control (VTEC) system enables an engine to operate efficiently while generating good power. The VTEC system is present in all models discussed, with key differences from non-VTEC engines found in the cylinder head, camshaft(s), and rocker arms, while other components remain identical. Each pair of intake valves on a VTEC engine features two cam lobes with differing lift and duration; the secondary lobe has lower lift and less duration, while the primary lobe has higher lift and more duration. At low speeds, the secondary camshaft lobe operates one intake valve, and the primary cam lobe operates the other, providing good low-end torque. When higher power is required, the PCM activates the VTEC solenoid valve, allowing higher oil pressure to engage a spring-loaded pin in the primary rocker arm, locking the secondary rocker arm to it, so both valves are opened by the primary camshaft lobe, enhancing performance. The PCM controls the VTEC solenoid valve based on various engine parameters, and while diagnosing the VTEC system may be complex, replacing the VTEC solenoid valve or cleaning the system filter is straightforward. The VTEC solenoid valve is positioned at the lower right corner of the engine block, above the VTEC oil pressure switch. To replace it, the vehicle should be raised securely, the solenoid valve located, and the electrical connector disconnected before removing the mounting bolts and the valve itself, ensuring a new O-ring is used during reinstallation. The VTEC oil pressure switch is situated below the VTEC solenoid valve, and its replacement involves similar steps: raising the vehicle, disconnecting the electrical connector, unscrewing the switch, discarding the old O-ring, and ensuring a new O-ring is used upon reinstallation.

Genuine Acura TL Oil Pressure Switch

Oil Pressure Sender Switch

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10 Oil Pressure Switches found

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Acura TL Automatic Transmission Oil Pressure Switch
Part Number: 28610-RKE-004
$103.26 MSRP: $144.87
You Save: $41.61 (29%)
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Product Specifications
- Other Name: Switch Assembly, At Oil Pressure (Washimiya)
- Replaces: 28610-PCJ-004, 28610-PRH-003, 28610-RAY-003, 28610-RAY-013, 28600-P7Z-013, 28610-RGR-004, 28600-P7Z-003
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura TL AT Oil Pressure Switch Assembly
Part Number: 28600-RKE-004
$101.44 MSRP: $144.87
You Save: $43.43 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Switch Automatic Transmission Oil Pressure
- Replaces: 28600-RGR-004, 28600-RAY-003, 28600-RAY-013
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura TL Oil Pressure Switch
Part Number: 37240-PT0-014
$48.82 MSRP: $69.72
You Save: $20.90 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Switch, Oil Pressure (Tec) ; Oil Pressure Sending Unit; Oil Pressure Sending Unit, Pressure Switch
- Replaces: 37240-PD2-003, 37240-P2F-A01, 37240-PT0-013, 37240-PT0-023, 37240-PD2-004, 37240-PT0-003, 37240-PT0-004
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura TL Automatic Transmission Oil Pressure Switch Assembly
Part Number: 28600-R94-004
$99.09 MSRP: $141.52
You Save: $42.43 (30%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Switch Assembly, At Oil Pressure
- Replaces: 28600-R90-003, 28600-R90-013
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura TL Valve Timing Oilpressure Switch Assembly
Part Number: 37250-PR3-003
$143.65 MSRP: $202.90
You Save: $59.25 (30%)
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Product Specifications
- Other Name: Switch Assembly, Valve Timing Oilpressure; Pressure Switch
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura TL Automatic Transmission Oil Pressure Switch
Part Number: 28610-R36-004
$96.62 MSRP: $137.98
You Save: $41.36 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Switch Assembly, At Oil Pressure
- Replaces: 28610-R97-013, 28610-R97-003
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura TL Transmission Pressure Switches
Part Number: 28600-P7W-003
$103.26 MSRP: $144.87
You Save: $41.61 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Switch Assembly, Oil Pressure
- Replaced by: 28600-P7W-013
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura TL Oil Pressure Switch
Part Number: 37240-PT0-023
$48.82 MSRP: $69.72
You Save: $20.90 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Switch, Oil Pressure (Denso)
- Replaced by: 37240-PT0-014
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura TL Automatic Transmission Oil Pressure Switch Assembly
Part Number: 28600-R36-004
$80.73 MSRP: $115.30
You Save: $34.57 (30%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Switch Assembly, At Oil Pressure
- Replaces: 28600-R97-003, 28600-R97-013
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura TL Oil Pressure Switch Assembly
Part Number: 37240-R72-A01
$50.46 MSRP: $70.38
You Save: $19.92 (29%)
Product Specifications
- Other Name: Oil Pressure Switch Unit, Oil Pressure Sending Unit; Oil Pressure Sending Unit, Pressure Sensor
- Warranty: This genuine part is guaranteed by Acura's factory warranty.

Acura TL Oil Pressure Switch

The Acura TL Oil Pressure Switch has the task of protecting the engine and continuously monitoring the force of lubrication. It alerts a warning signal on the dash as long as there are values outside the safe area. Working in tandem with the powertrain control module that follows inputs from oxygen, camshaft, crankshaft, throttle, temperature, and load devices, this dedicated sensor feeds a voltage signal to the computer, letting it know if there is enough oil flow to keep bearings and valvetrain running. Because the Oil Pressure Switch is a crucial guardian, Acura pairs every TL powertrain with an Oil Pressure Switch calibrated to specs. A faulty Oil Pressure Switch will lead to a dash light. When pressure drops, the module will light the gauge or warning lamp so a driver can pull over before damage occurs. Abnormal high pressure can be flagged as well. Earlier TL generations had a simple pressure sender applied to light a bulb, while newer Acura TL versions share information with the PCM for more specific gauge control. Both versions use the same basic mechanism, a pressure sensitive diaphragm switching circuit that goes on or off depending on preset thresholds. No matter what year it is, the Oil Pressure Switch helps with emission and ignition strategies by ensuring that the computer knows the Acura is lubricated.

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Acura TL Oil Pressure Switch Parts Questions & Experts Answers

AT Oil Pressure Switch Assembly
28600-RKE-004
Q: How Is the Oil Pressure Switch and VTEC Solenoid Valve Replaced on Acura TL?
A:
A low-lift, short-duration camshaft intake lobe provides good torque, quick response, fuel economy, and low emissions at lower engine speeds, but struggles to deliver adequate air/fuel mixture at higher speeds, while a high-lift, long-duration intake cam lobe excels in power at high speeds but results in a lumpy idle, poor driveability, fuel wastage, and unacceptable emissions at lower speeds, leading to a compromise between economy and performance. The Variable Valve Timing and Lift Electronic Control (VTEC) system enables an engine to operate efficiently while generating good power. The VTEC system is present in all models discussed, with key differences from non-VTEC engines found in the cylinder head, camshaft(s), and rocker arms, while other components remain identical. Each pair of intake valves on a VTEC engine features two cam lobes with differing lift and duration; the secondary lobe has lower lift and less duration, while the primary lobe has higher lift and more duration. At low speeds, the secondary camshaft lobe operates one intake valve, and the primary cam lobe operates the other, providing good low-end torque. When higher power is required, the PCM activates the VTEC solenoid valve, allowing higher oil pressure to engage a spring-loaded pin in the primary rocker arm, locking the secondary rocker arm to it, so both valves are opened by the primary camshaft lobe, enhancing performance. The PCM controls the VTEC solenoid valve based on various engine parameters, and while diagnosing the VTEC system may be complex, replacing the VTEC solenoid valve or cleaning the system filter is straightforward. The VTEC solenoid valve is positioned at the lower right corner of the engine block, above the VTEC oil pressure switch. To replace it, the vehicle should be raised securely, the solenoid valve located, and the electrical connector disconnected before removing the mounting bolts and the valve itself, ensuring a new O-ring is used during reinstallation. The VTEC oil pressure switch is situated below the VTEC solenoid valve, and its replacement involves similar steps: raising the vehicle, disconnecting the electrical connector, unscrewing the switch, discarding the old O-ring, and ensuring a new O-ring is used upon reinstallation.