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Wondering if i have a issue in coolant system

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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Grantkat  
Posts: 172
Joined: 28 August 2023
Year and Model: 1999 s70 GLT
Location: Ohio
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Re: Wondering if i have a issue in coolant system

Post by Grantkat »

Yep - science buff here (family uses Nerd as opposed to buff). Ok the lower hose does get hot and is slightly less warm to the touch as opposed to the upper hose whaicj is what we would expect. HOWEVER, I will check with an infrared temp gun tonight. Both hoses are brand new, same manufacturer. I tested the recirculator and while it was hotter the difference was not huge. Again - will run temperatures tonight and provide actual data.

thanks!!!
1999 S70 GLT ~193k
2014D VIDA/DICE
2007 Jeep Wrangler Unlimited ~ 315K
2008 Lincoln MKX ~130k
2008 Toyota Sequoia ~ 252k

Powered by coffee, stripped bolts, and questionable decisions.

User avatar
Grantkat  
Posts: 172
Joined: 28 August 2023
Year and Model: 1999 s70 GLT
Location: Ohio
Has thanked: 47 times
Been thanked: 43 times

Post by Grantkat »

Ok, my system is definitely running ok. After commuting, i left the car running, grabbed my temperature gun and digital probe. here are the results:

Temperatures:
Thermostat housing: 203.2
Upper Radiator Hose: 183
Lower Radiator Hose: 158

56 degrees outside during my tests. When parked max heat produced 140 out of the vents. Driving - the temp out of vents varied between lower 130s to 140. Recirculation raised the temp a few degrees but not a huge difference.
1999 S70 GLT ~193k
2014D VIDA/DICE
2007 Jeep Wrangler Unlimited ~ 315K
2008 Lincoln MKX ~130k
2008 Toyota Sequoia ~ 252k

Powered by coffee, stripped bolts, and questionable decisions.

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