How to check and replace a faulty coolant temperature gauge and Coolant Temperature Sensor on Toyota 4Runner,Toyota T100 and Toyota Tacoma?

If the coolant temperature gauge isn't working, check the fuses. If it shows excessive temperature, consult the manual. If it reads HOT on a cold start, disconnect the sender wire. If the gauge drops, replace the unit. If it stays high, the wire or gauge could be faulty. If the gauge doesn't indicate after warming up, disconnect the wire at the unit and connect it to a clean engine ground. Also, reconnect the connector, refill the cooling, and check for leaks.

Genuine Toyota 4Runner Coolant Temperature Sensor

Coolant Water Temperature Sensor

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12 Coolant Temperature Sensors found

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Toyota 4Runner Sensor, Water Temperature
Part Number: 89422-35010
- Other Name: Sensor, Water Temperature (For E.F.I.)
- Comment: (FOR E.F.I.)
$57.58 MSRP: $80.49
You Save: $22.91 (29%)

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Fits the following Vehicles:
1990-2002 Toyota 4Runner | DLX, LULI, SR5, SR5B, SR5V, STD | 4 Cyl 2.7L, 6 Cyl 3.0L, 6 Cyl 3.4L | 3RZFE, 3VZE, 5VZFE; 3RZFE, 3VZE, 5VZFE; RZN180L-GKMSKA, RZN180L-GKPSKA, RZN185L-GKMSKA, RZN185L-GKPSKA, VZN100L-TRMDEA, VZN100L-TRMDEAB, VZN100L-TRMDEK, VZN100L-TRMGEA, VZN105L-TRMDEA, VZN105L-TRMDEK, VZN105L-TRPDEA, VZN110L-CRMDEA, VZN110L-CRMDEAB, VZN110L-CRMDEK, VZN110L-CRMGEA, VZN110L-CRMGEK, VZN110L-CRPDEA, VZN110L-CRPDEAB, VZN110L-CRPDEK, VZN110L-CRPGEA, VZN120L-GKPGEA, VZN130L-GJMGEA, VZN130L-GJPGEA, VZN130L-GKMGEA, VZN130L-GKPGEA, VZN131L-RJMGEK, VZN131L-RJPGEK, VZN131L-RKMGEK, VZN131L-RKPGEK, VZN180L-GKPGKA, VZN180L-GKPSKA, VZN180L-GKPZKA, VZN185L-GKMGKA, VZN185L-GKPGKA, VZN185L-GKPSKA, VZN185L-GKPZKA, VZN85L-THMDEA, VZN85L-THSDEA, VZN85L-TRMDEA, VZN85L-TRMDEK, VZN85L-TRMREA6, VZN85L-TRSDEA, VZN85L-TRSDEK, VZN85L-TRSREA6, VZN85L-TWMREA6, VZN85L-TWSREA6, VZN90L-CRMDEA, VZN90L-CRMDEK, VZN90L-CRMGEA, VZN90L-CRMGEK, VZN90L-CRPGEA, VZN90L-CRSDEA, VZN90L-CRSDEK, VZN95L-TWMREA6, VZN95L-TWSREA6, VZN95L-TWSREK6
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Toyota 4Runner Sensor, Water Temperature
Part Number: 89422-33030
- Other Name: Sensor, Water Temperature (For E.F.I.); Coolant Temperature Sensor, Temperature Sensor
- Comment: (FOR E.F.I.)
$57.58 MSRP: $80.49
You Save: $22.91 (29%)

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Fits the following Vehicles:
2003-2022 Toyota 4Runner | Limited, SR5 | 4 Cyl 2.7L, 6 Cyl 4.0L, 8 Cyl 4.7L | 1GRFE, 2TRFE, 2UZFE; 1GRFE, 2TRFE, 2UZFE; GRN210L-GKAGKA, GRN210L-GKAZKA, GRN210L-GKPGKA, GRN210L-GKPZKA, GRN215L-GKAGKA, GRN215L-GKAZKA, GRN215L-GKPGKA, GRN215L-GKPZKA, GRN280L-GKAGKA, GRN285L-GKAGKA, TRN280L-GKPGKA, TRN285L-GKPGKA, UZN210L-GKAGKA, UZN210L-GKAZKA, UZN215L-GKAGKA, UZN215L-GKAZKA
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Toyota 4Runner Sensor, Water Temperature
Part Number: 89422-20010
- Other Name: Sensor, Water Temperature (For E.F.I.)
- Manufacturer Note: ENGINE BLOCK
- Comment: (FOR E.F.I.)
$57.58 MSRP: $80.49
You Save: $22.91 (29%)

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Fits the following Vehicles:
1988-1995 Toyota 4Runner | DLX, SR5, STD | 4 Cyl 2.4L, 6 Cyl 3.0L | 22R, 22RE, 22REC, 3VZE; 22R, 22RE, 22REC, 3VZE; RN101L-TRLDEA, RN101L-TRLDEAB, RN101L-TRLDEK, RN101L-TRLSEA, RN101L-TRLSEA3, RN101L-TRMDEA, RN101L-TRMDEA3, RN101L-TRMDEAB, RN101L-TRMDEK, RN101L-TRMSEA, RN101L-TRMSEA3, RN101L-TRPDEA, RN101L-TRPDEAB, RN106L-TRLDEA, RN106L-TRLDEK, RN106L-TRMDEA, RN106L-TRMDEA3, RN106L-TRMDEK, RN106L-TRPDEA, RN106L-TRPDEA3, RN106L-TRPDEK, RN110L-CRLDEA, RN110L-CRLDEK, RN110L-CRLSEA, RN110L-CRLSEA3, RN110L-CRMDEA, RN110L-CRMDEA3, RN110L-CRMDEAB, RN110L-CRMDEK, RN110L-CRMSEA, RN110L-CRMSEA3, RN110L-CRPDEA, RN110L-CRPDEA3, RN110L-CRPSEA, RN110L-CRPSEA3, RN120L-GKPSEA, RN121L-RKMSEK, RN121L-RKPSEK, RN130L-GJLSEA, RN130L-GJMSEA, RN130L-GJPSEA, RN130L-GKLSEA, RN130L-GKMSEA, RN130L-GKPSEA, RN131L-RJLSEK, RN131L-RJMSEK, RN131L-RJPSEK, RN131L-RKLSEK, RN131L-RKMSEK, RN131L-RKPSEK, RN61LG-MDEA, RN61LG-MSEA, RN61LG-PDEA, RN61LG-PSEA, RN61L-MREA, RN61L-MREA3, RN61L-MREK, RN61L-MSEA, RN61L-MSEA3, RN61LV-MDEA, RN61LV-MDEK, RN61LV-MSEA, RN61LV-MSEK, RN61LV-PDEA, RN61LV-PDEK, RN61LV-PSEA, RN80L-TRKREA, RN80L-TRKRSA, RN80L-TRKRSA3, RN80L-TRLDSA, RN80L-TRLDSA3, RN80L-TRMDEA, RN80L-TRMDEA3, RN80L-TRMDEAB, RN80L-TRMREA, RN80L-TRMREAB, RN80L-TRMREK, RN80L-TRMRSK, RN80L-TRSDEA, RN80L-TRSDEA3, RN80L-TRSDEAB, RN80L-TRTRSA, RN80L-TRTRSA3, RN85L-TRLDSA, RN85L-TRLDSA3, RN85L-TRMDEA, RN85L-TRMDEA3, RN85L-TRMDEK, RN85L-TRMDSK, RN85L-TRMSEA, RN85L-TRMSEA3, RN85L-TRSDEA, RN85L-TRSDEA3, RN85L-TRSDEK, RN85L-TRSSEA, RN85L-TRSSEA3, RN90L-CRLDSA, RN90L-CRLDSA3, RN90L-CRMDEA, RN90L-CRMDEA3, RN90L-CRMDEAB, RN90L-CRMDEK, RN90L-CRMDSK, RN90L-CRMSEA, RN90L-CRMSEA3, RN90L-CRSDEA, RN90L-CRSDEA3, RN90L-CRSDEK, RN90L-CRSSEA, RN90L-CRSSEA3, VZN100L-TRMDEA, VZN100L-TRMDEA3, VZN100L-TRMDEK, VZN100L-TRMGEA, VZN100L-TRMGEA3, VZN105L-TRMDEA, VZN105L-TRMDEA3, VZN105L-TRMDEK, VZN105L-TRPDEA, VZN105L-TRPDEA3, VZN110L-CRMDEA, VZN110L-CRMDEA3, VZN110L-CRMDEK, VZN110L-CRMGEA, VZN110L-CRMGEA3, VZN110L-CRMGEK, VZN110L-CRPDEA, VZN110L-CRPDEA3, VZN110L-CRPDEK, VZN110L-CRPGEA, VZN110L-CRPGEA3, VZN120L-GKPGEA, VZN130L-GJMGEA, VZN130L-GJPGEA, VZN130L-GKMGEA, VZN130L-GKPGEA, VZN131L-RJMGEK, VZN131L-RJPGEK, VZN131L-RKMGEK, VZN131L-RKPGEK, VZN61LG-MSEA, VZN61LG-PSEA, VZN61L-MBEA, VZN61L-MBEA3, VZN61L-MSEA, VZN61L-MSEA3, VZN61LV-MDEA, VZN61LV-MSEA, VZN61LV-MSEK, VZN61LV-PDEA, VZN61LV-PSEA, VZN61LV-PSEK, VZN85L-THMDEA, VZN85L-THMDEA3, VZN85L-THSDEA, VZN85L-THSDEA3, VZN85L-TRMDEA, VZN85L-TRMDEA3, VZN85L-TRMDEK, VZN85L-TRMREA6, VZN85L-TRSDEA, VZN85L-TRSDEA3, VZN85L-TRSDEK, VZN85L-TRSREA6, VZN85L-TWMREA6, VZN85L-TWSREA6, VZN90L-CRMDEA, VZN90L-CRMDEA3, VZN90L-CRMDEK, VZN90L-CRMGEA, VZN90L-CRMGEA3, VZN90L-CRMGEK, VZN90L-CRPGEA, VZN90L-CRPGEA3, VZN90L-CRSDEA, VZN90L-CRSDEA3, VZN90L-CRSDEK, VZN95L-TWMREA6, VZN95L-TWSREA6, VZN95L-TWSREK6
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Toyota 4Runner Switch, Water Temperature
Part Number: 89428-28030
- Other Name: Switch, Water Temperature (For E.F.I); Coolant Temperature Sensor
- Comment: (FOR E.F.I)
$10.33 MSRP: $14.44
You Save: $4.11 (29%)

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Fits the following Vehicles:
1984-1988 Toyota 4Runner | DLX, SDT, SR5, SR5 Turbo, STD | 4 Cyl 2.4L | 22REC, 22RTEC; 22REC, 22RTEC; RN60LG-MDEA, RN60LG-MSEA, RN60LG-PDEA, RN60L-MSEA, RN60L-MSEA3, RN60LV-MDEA, RN60LV-MSEK, RN60LV-PDEA, RN60LV-PSEK, RN61LG-MDEA, RN61LG-MSEA, RN61LG-PDEA, RN61LG-PGZA, RN61L-MBZA, RN61L-MBZA3, RN61L-MREA, RN61L-MREA3, RN61L-MREK, RN61L-MSEA, RN61L-MSEA3, RN61LV-MDEA, RN61LV-MDEK, RN61LV-MSEA, RN61LV-MSEK, RN61LV-PDEA, RN61LV-PDEK, RN61LV-PGZK, RN61LV-PSEA, RN61LV-PSEK, RN65L-MSCEA, RN65L-MSCEA3, RN65L-MSCEK, RN65L-MSEA3, RN65L-MSEK, RN65L-PDCEA, RN65L-PDCEA3, RN65L-PDEA, RN65L-PDEA3, RN65L-PDEK, RN65L-PSCEK, RN66L-MDCEA, RN66L-MDCEA3, RN66L-MDCEK, RN66L-MDEA, RN66L-MDEA3, RN66L-MDEK, RN66L-MGCZA, RN66L-MGCZA3, RN66L-MGCZK, RN66L-MSCEA, RN66L-MSCEA3, RN66L-MSCEK, RN66L-MSEA3, RN66L-MSEK, RN66L-PDCEA, RN66L-PDCEA3, RN66L-PDEA, RN66L-PDEA3, RN66L-PDEK, RN66L-PGCZA, RN66L-PGCZA3, RN66L-PGCZK, RN66L-PSCEA3, RN66L-PSCEK
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Toyota 4Runner Switch, Temperature
Part Number: 89428-20050
- Other Name: Switch, Temperature Detect, NO.2; Temperature Sending Unit
$130.58 MSRP: $185.64
You Save: $55.06 (30%)

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Fits the following Vehicles:
1984-1989 Toyota 4Runner | DLX, SR5, STD | 4 Cyl 2.4L | 22R, 22REC; 22R, 22REC; RN50L-KRA, RN50L-KRK, RN50L-LRA, RN50L-MRA, RN50L-PRA, RN50L-SRA, RN50L-TRA, RN55L-KDA3W, RN55L-KDK3W, RN55L-KRA3W, RN55L-LDA, RN55L-LDA3, RN55L-LRA, RN55L-MDA, RN55L-MDA3, RN55L-MDCA, RN55L-MDCA3, RN55L-MDCK, RN55L-MRA, RN55L-MRHA, RN55L-MRHA3, RN55L-MRHK, RN55L-MRK, RN55L-PDA, RN55L-PDA3, RN55L-PDCA, RN55L-PDCA3, RN55L-PDCK, RN55L-PDEA3W, RN55L-PDEK3W, RN55L-PDK, RN55L-PRA, RN55L-PRK, RN55L-PSCEA, RN55L-PSCEA3, RN55L-PSCEK, RN55L-PSEA3, RN55L-SDA, RN55L-SRA, RN55L-SRK, RN60LG-MDA, RN60LG-MSA, RN60L-MDK, RN60L-MRA, RN60L-MRA3, RN60L-MSA, RN60L-MSA3, RN60LV-MDA, RN60LV-MSK, RN61L-MDK, RN61L-MRA, RN61L-MRA3, RN65L-MDA, RN65L-MDA3, RN65L-MDCA, RN65L-MDCA3, RN65L-MDK, RN65L-MSA3, RN65L-MSCA, RN65L-MSCA3, RN65L-MSCK, RN65L-MSK, RN66L-MDA, RN66L-MDA3, RN66L-MDCA, RN66L-MDCA3, RN66L-MDK, RN66L-MRA, RN70L-LDCA3, RN70L-LRCA, RN70L-LRCA3, RN70L-MDCA, RN70L-MDCA3, RN70L-MDCK, RN70L-MRCA, RN70L-MRCA3, RN70L-MRCK, RN70L-SDCA, RN70L-SDCA3, RN70L-SDCK, RN70L-SRCA, RN70L-SRCK
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Toyota 4Runner Sensor, Water Temperature
Part Number: 89422-30030
- Other Name: Sensor, Water Temperature (For E.F.I.); Coolant Temperature Sensor, Temperature Sensor
- Comment: (FOR E.F.I.)
$63.00 MSRP: $88.81
You Save: $25.81 (30%)

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Fits the following Vehicles:
2003-2005 Toyota 4Runner | Limited, SR5 | 8 Cyl 4.7L | 2UZFE; 2UZFE; UZN210L-GKAGKA, UZN210L-GKAZKA, UZN215L-GKAGKA, UZN215L-GKAZKA
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Toyota 4Runner Sensor, Water Temperature
Part Number: 89422-30020
- Other Name: Sensor, Water Temperature (For E.F.I.)
- Manufacturer Note: NO.1
- Comment: (FOR E.F.I.)
- Replaced by: 89422-12010
$72.20 MSRP: $101.77
You Save: $29.57 (30%)
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Fits the following Vehicles:
1984-1989 Toyota 4Runner | DLX, SDT, SR5, SR5 Turbo, STD | 4 Cyl 2.4L, 6 Cyl 3.0L | 22REC, 22RTEC, 2L, 2LT, 3VZE; 22REC, 22RTEC, 2L, 2LT, 3VZE; LN51L-KRA, LN51L-KRA3, LN56L-MDA3, LN56L-MDCA, LN56L-MDCA3, LN56L-MDCK, LN56L-MDCXA3, LN56L-MDK, LN56L-MDXA3, LN56L-MRK, LN65L-MDA, LN65L-MDA3, LN65L-MDCA3, LN65L-MDCK, LN65L-MDXA, LN65L-MDXA3, LN65L-MDXK, LN66L-MDCXK, RN50L-MSEA, RN50L-MSEA3, RN50L-SREA, RN55L-KDEA3W, RN55L-KDEK3W, RN55L-KREA3W, RN55L-KRTEA3W, RN55L-MGCZA, RN55L-MGCZA3, RN55L-MRHEA, RN55L-MRHEK, RN55L-MSCEA, RN55L-MSCEA3, RN55L-MSCEK, RN55L-MSCZA, RN55L-MSCZA3, RN55L-MSEA, RN55L-MSEA3, RN55L-MSEK, RN55L-PDEA3W, RN55L-PDEK3W, RN55L-PGCZA, RN55L-PGCZA3, RN55L-PGCZK, RN55L-PSCEA, RN55L-PSCEA3, RN55L-PSCEK, RN55L-PSEA3, RN55L-SDEA, RN55L-SDEA3, RN55L-SREA, RN55L-SREA3W, RN55L-SREK, RN55L-SRHEA, RN55L-SRHEK, RN55L-SRTEA3W, RN60LG-MDEA, RN60LG-MSEA, RN60LG-PDEA, RN60L-MSEA, RN60L-MSEA3, RN60LV-MDEA, RN60LV-MSEK, RN60LV-PDEA, RN60LV-PSEK, RN61LG-MDEA, RN61LG-MSEA, RN61LG-PDEA, RN61LG-PGZA, RN61LG-PSEA, RN61L-MBZA, RN61L-MBZA3, RN61L-MREA, RN61L-MREA3, RN61L-MREK, RN61L-MSEA, RN61L-MSEA3, RN61LV-MDEA, RN61LV-MDEK, RN61LV-MSEA, RN61LV-MSEK, RN61LV-PDEA, RN61LV-PDEK, RN61LV-PGZK, RN61LV-PSEA, RN61LV-PSEK, RN65L-MSCEA, RN65L-MSCEA3, RN65L-MSCEK, RN65L-MSEA3, RN65L-MSEK, RN65L-PDCEA, RN65L-PDCEA3, RN65L-PDEA, RN65L-PDEA3, RN65L-PDEK, RN65L-PSCEK, RN66L-MDCEA, RN66L-MDCEA3, RN66L-MDCEK, RN66L-MDEA, RN66L-MDEA3, RN66L-MDEK, RN66L-MGCZA, RN66L-MGCZA3, RN66L-MGCZK, RN66L-MSCEA, RN66L-MSCEA3, RN66L-MSCEK, RN66L-MSEA3, RN66L-MSEK, RN66L-PDCEA, RN66L-PDCEA3, RN66L-PDEA, RN66L-PDEA3, RN66L-PDEK, RN66L-PGCZA, RN66L-PGCZA3, RN66L-PGCZK, RN66L-PSCEA3, RN66L-PSCEK, RN70L-SDCEA3, RN70L-SRCEA, RN70L-SRCEA3, RN70L-SRCEK, RN75L-KRTEA3W, RN75L-PDTEA3W, RN75L-SDTEA3W, RN75L-SDTEK3W, VZN61LG-MSEA, VZN61LG-PSEA, VZN61L-MBEA, VZN61L-MBEA3, VZN61L-MSEA, VZN61L-MSEA3, VZN61LV-MDEA, VZN61LV-MSEA, VZN61LV-MSEK, VZN61LV-PDEA, VZN61LV-PSEA, VZN61LV-PSEK, VZN66L-MDCEA3, VZN66L-MDCEK, VZN66L-MDEA3, VZN66L-MDEK, VZN66L-MSCEA, VZN66L-MSCEA3, VZN66L-MSCEK, VZN66L-PDCEA3, VZN66L-PDEA3, VZN66L-PDEK, VZN66L-PSCEA3, VZN66L-PSCEK
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Toyota 4Runner Switch, Temperature Detect
Part Number: 89427-35010
- Manufacturer Note: CALIFORNIA SPEC
More Info
Fits the following Vehicles:
1984-1989 Toyota 4Runner | DLX, SR5, STD | 4 Cyl 2.4L | 22R, 22REC; 22R, 22REC; RN50L-KRA, RN50L-KRK, RN50L-LRA, RN50L-MRA, RN50L-PRA, RN50L-SRA, RN50L-TRA, RN55L-KDA3W, RN55L-KRA3W, RN55L-LDA, RN55L-LDA3, RN55L-LRA, RN55L-MDA, RN55L-MDA3, RN55L-MDCA3, RN55L-MRA, RN55L-MRHA, RN55L-MRHA3, RN55L-MRK, RN55L-PDA, RN55L-PDA3, RN55L-PDCA3, RN55L-PRA, RN55L-SDA, RN55L-SRA, RN55L-SRK, RN60L-MRA3, RN60L-MSA3, RN61L-MRA3, RN65L-MDA3, RN65L-MDCA3, RN65L-MSA3, RN65L-MSCA3, RN66L-MDA3, RN66L-MDCA3, RN70L-LDCA3, RN70L-LRCA, RN70L-LRCA3, RN70L-MDCA, RN70L-MDCA3, RN70L-MRCA, RN70L-MRCA3, RN70L-MRCK, RN70L-SDCA, RN70L-SDCA3, RN70L-SRCA, RN70L-SRCEA, RN70L-SRCEA3, RN70L-SRCK
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Toyota 4Runner Switch, Temperature Detect
Part Number: 89428-35030
- Other Name: Switch, Temperature Detect, NO.2
More Info
Fits the following Vehicles:
1984-1986 Toyota 4Runner | DLX | 4 Cyl 2.4L | 2L, 2LT; 2L, 2LT; LN65L-MDA, LN65L-MDA3, LN65L-MDCA3, LN65L-MDCK, LN65L-MDXA, LN65L-MDXA3, LN65L-MDXK, LN66L-MDCXK
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Toyota 4Runner Switch, Water Temperature
Part Number: 89428-14070
- Other Name: Switch, Water Temperature (For E.F.I)
- Comment: (FOR E.F.I)
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Fits the following Vehicles:
1987-1991 Toyota 4Runner | DLX, SR5, STD | 6 Cyl 3.0L | 3VZE; 3VZE; VZN100L-TRMDEA, VZN100L-TRMDEA3, VZN100L-TRMDEK, VZN100L-TRMGEA, VZN100L-TRMGEA3, VZN105L-TRMDEA, VZN105L-TRMDEA3, VZN105L-TRMDEK, VZN105L-TRPDEA, VZN105L-TRPDEA3, VZN110L-CRMDEA, VZN110L-CRMDEA3, VZN110L-CRMDEK, VZN110L-CRMGEA, VZN110L-CRMGEA3, VZN110L-CRMGEK, VZN110L-CRPDEA, VZN110L-CRPDEA3, VZN110L-CRPDEK, VZN110L-CRPGEA, VZN110L-CRPGEA3, VZN120L-GKPGEA, VZN130L-GJMGEA, VZN130L-GJPGEA, VZN130L-GKMGEA, VZN130L-GKPGEA, VZN131L-RJMGEK, VZN131L-RJPGEK, VZN131L-RKMGEK, VZN131L-RKPGEK, VZN61LG-MSEA, VZN61LG-PSEA, VZN61L-MBEA, VZN61L-MBEA3, VZN61L-MSEA, VZN61L-MSEA3, VZN61LV-MDEA, VZN61LV-MSEA, VZN61LV-MSEK, VZN61LV-PDEA, VZN61LV-PSEA, VZN61LV-PSEK, VZN66L-MDCEA3, VZN66L-MDCEK, VZN66L-MDEA3, VZN66L-MDEK, VZN66L-MSCEA, VZN66L-MSCEA3, VZN66L-MSCEK, VZN66L-PDCEA3, VZN66L-PDEA3, VZN66L-PDEK, VZN66L-PSCEA3, VZN66L-PSCEK, VZN85L-THMDEA, VZN85L-THMDEA3, VZN85L-THSDEA, VZN85L-THSDEA3, VZN85L-TRMDEA, VZN85L-TRMDEA3, VZN85L-TRMDEK, VZN85L-TRMREA6, VZN85L-TRSDEA, VZN85L-TRSDEA3, VZN85L-TRSDEK, VZN85L-TRSREA6, VZN85L-TWMREA6, VZN85L-TWSREA6, VZN90L-CRMDEA, VZN90L-CRMDEA3, VZN90L-CRMDEK, VZN90L-CRMGEA, VZN90L-CRMGEA3, VZN90L-CRMGEK, VZN90L-CRPGEA, VZN90L-CRPGEA3, VZN90L-CRSDEA, VZN90L-CRSDEA3, VZN90L-CRSDEK, VZN95L-TWMREA6, VZN95L-TWSREA6, VZN95L-TWSREK6
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Toyota 4Runner Switch, Temperature Detect
Part Number: 89427-14040
- Other Name: Temperature Sending Unit
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Fits the following Vehicles:
1984-1985 Toyota 4Runner | DLX, SR5, STD | 4 Cyl 2.4L | 22R, 22REC; 22R, 22REC; RN50L-KRA, RN50L-MRA, RN50L-PRA, RN55L-KDA3W, RN55L-KDK3W, RN55L-KRA3W, RN55L-MDA3, RN55L-MDCA3, RN55L-MRA, RN55L-MRHA3, RN55L-PDA3, RN55L-PDCA3, RN55L-PRA, RN60LG-MDA, RN60LG-MDEA, RN60LG-MSA, RN60LG-MSEA, RN60L-MRA3, RN60L-MSA3, RN60LV-MDA, RN60LV-MDEA, RN65L-MDA3, RN65L-MDCA3, RN65L-MSA3, RN65L-MSCA3
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Toyota 4Runner Switch, Temperature Detect
Part Number: 89428-89101
- Other Name: Switch, Temperature Detect, NO.2
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Fits the following Vehicles:
1989-1995 Toyota 4Runner | DLX, SR5 | 6 Cyl 3.0L | 3VZE; 3VZE; VZN105L-TRPDEA, VZN105L-TRPDEA3, VZN110L-CRPDEA, VZN110L-CRPDEA3, VZN110L-CRPDEAB, VZN110L-CRPDEK, VZN110L-CRPGEA, VZN110L-CRPGEA3, VZN130L-GJPGEA, VZN130L-GKPGEA, VZN131L-RJPGEK, VZN131L-RKPGEK
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Toyota 4Runner Coolant Temperature Sensor Parts Questions & Answers

Sensor, Water Temperature
89422-35010
Q: How to check and replace a faulty coolant temperature gauge and Coolant Temperature Sensor on Toyota 4Runner,Toyota T100 and Toyota Tacoma?
A: If the coolant temperature gauge isn't working, check the fuses. If it shows excessive temperature, consult the manual. If it reads HOT on a cold start, disconnect the sender wire. If the gauge drops, replace the unit. If it stays high, the wire or gauge could be faulty. If the gauge doesn't indicate after warming up, disconnect the wire at the unit and connect it to a clean engine ground. Also, reconnect the connector, refill the cooling, and check for leaks.

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