How to Diagnose and Replace a Faulty Coolant Temperature Sensor for the 1987 Toyota Supra?

If the coolant temperature gauge isn't working, check the fuses. If the gauge reads hot on a cold start, disconnect the wire at the coolant temperature sending unit. If the gauge drops, replace the unit. If the gauge doesn't show up after warming up, detach the wire at the unit, connect it to clean ground, and switch on the ignition.

Genuine 1987 Toyota Supra Coolant Temperature Sensor

Coolant Water Temperature Sensor

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1987 Toyota Supra Sensor, Water Temperature
Part Number: 89422-30020
$79.87 MSRP: $112.59
You Save: $32.72 (30%)
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Product Specifications
- Other Name: Sensor, Water Temperature (For E.F.I.)
- Manufacturer Note: NO.1
- Comment: (FOR E.F.I.)
- Replaced by: 89422-12010
- Item Weight: 0.50 Pounds
- Item Dimensions: 2.4 x 1.2 x 0.9 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 89422-30020
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
More Info
Fits the following 1987 Toyota Supra Submodels:
- 6 Cyl 3.0L | 7MGE, 7MGTE; MA70L-BJMVFA, MA70L-BJMVFK, MA70L-BJMVZA, MA70L-BJMVZK, MA70L-BJPVFA, MA70L-BJPVFK, MA70L-BJPVZA, MA70L-BJPVZK, MA70L-BLMVFA, MA70L-BLMVFK, MA70L-BLMVZA, MA70L-BLMVZK, MA70L-BLPVFA, MA70L-BLPVFK, MA70L-BLPVZA, MA70L-BLPVZK

1987 Toyota Supra Coolant Temperature Sensor

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1987 Toyota Supra Coolant Temperature Sensor Parts Questions & Experts Answers

Q: How to Diagnose and Replace a Faulty Coolant Temperature Sensor for the 1987 Toyota Supra?
A: If the coolant temperature gauge isn't working, check the fuses. If the gauge reads hot on a cold start, disconnect the wire at the coolant temperature sending unit. If the gauge drops, replace the unit. If the gauge doesn't show up after warming up, detach the wire at the unit, connect it to clean ground, and switch on the ignition.