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DIY: 2005 Volvo XC90 Thermostat + ECT without removing PS Pump

A mid-size luxury crossover SUV, the Volvo XC90 made its debut in 2002 at the Detroit Motor Show. Recognized for its safety, practicality, and comfort, the XC90 is a popular vehicle around the world. The XC90 proved to be very popular, and very good for Volvo's sales numbers, since its introduction in model year 2003 (North America). P2 platform.
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abscate
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Re: DIY: 2005 Volvo XC90 Thermostat + ECT without removing PS Pump

Post by abscate »

This is such a great write up of a real time saving procedure.

Trying to find answer to the gasket question above, the v70 diagram shows the gasket 17 but no part number given ..... :shock:
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ford92925
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Post by ford92925 »

Volvo does not sell Tstat alone (some forums say it may be Gates TH35991 which may require modification before install), instead you have to buy the whole tstat assembly which includes: lower housing, upper housing, tstat itself, and ECT sensor....

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Last edited by ford92925 on 12 Dec 2023, 00:01, edited 1 time in total.
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xHeart
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Post by xHeart »

abscate wrote: ↑09 Dec 2023, 03:05 This is such a great write up of a real time saving procedure.

Trying to find answer to the gasket question above, the v70 diagram shows the gasket 17 but no part number given ..... :shock:
The thermostat assembly part #31293700 can be removed for servicing, reassembled with Permatex Water Pump & Thermostat Housing Gasket Maker. You are good to many years. Thinly coated screw threads are best before assembling.
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