What issues can arise from an aging thermostat, and How tots functionality be assessed and tested on 2004 Volvo V70?

As thermostats age they can be slow to respond to temperature changes, and they can sometimes "stick" open or closed, resulting in slow warming up or overheating. Check coolant before assuming thermostat problems. Watch the temperature of the radiator top hose to determine functionality. If faulty, replace thermostat, being sure to seal and tighten properly when reassembling.

Genuine 2004 Volvo V70 Thermostat

Engine Coolant Thermostat

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2004 Volvo V70 Thermostat Part Number: 271664
$31.16 MSRP: $46.44
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Product Specifications
- Other Name: Thermostat Kit; Thermostat Insert; Thermostat
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 271664
- Warranty: This genuine part is guaranteed by Volvo's factory warranty.
Fits the following 2004 Volvo V70 Submodels:
- 2.4, 2.4T, AWD, Base, GLT, GLT SE, R, R AWD, T5, X/C, X/C AWD, X/C AWD SE | 5 Cyl 2.3 L GAS, 5 Cyl 2.4 L GAS

2004 Volvo V70 Thermostat Parts and Q&A

Q: What issues can arise from an aging thermostat, and How tots functionality be assessed and tested on 2004 Volvo V70?
A: As thermostats age they can be slow to respond to temperature changes, and they can sometimes "stick" open or closed, resulting in slow warming up or overheating. Check coolant before assuming thermostat problems. Watch the temperature of the radiator top hose to determine functionality. If faulty, replace thermostat, being sure to seal and tighten properly when reassembling.