Ok so I'm scratching my head on this one now.
I've replaced the vast majority of everything in my coolant system at this point due to some split hoses, leaky radiator, etc.
Here's everything that is new
All coolant hoses (even the small ones around the turbo)
Radiator
Coolant temp sensor
Thermostat
Coolant reservoir and level sensor
Cooling fan assembly
Heater core
Coolant lines running to firewall/heater core
The cooling fan assembly is the only part that is not OEM Genuine Volvo
The only code I currently have is an evap leak which I presume is being caused by a split vacuum hose back at the charcoal canister.
But yeah... in the mornings, I can have the car just backing out of the garage right after cold starting and the radiator fan will kick on and start running.
It also runs for a while when I get home from work but I assume that's normal if the car was driven hard or up hills.
99 T5 Cooling Fan runs when car isn't up to temp yet
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Auburn T5
- Posts: 86
- Joined: 11 May 2007
- Year and Model: 1999 S70 T5
- Location: Birmingham, AL
- Been thanked: 2 times
99 T5 Cooling Fan runs when car isn't up to temp yet
2020 - Tesla Model 3 Performance
2020 - XC60 T5
1999 S70 T5 - Bilstein touring shocks/struts, B&G S2 springs, OBX full exhaust, other misc. stuff
2020 - XC60 T5
1999 S70 T5 - Bilstein touring shocks/struts, B&G S2 springs, OBX full exhaust, other misc. stuff
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FLXC90
- Posts: 1132
- Joined: 18 August 2014
- Year and Model: 98 V70 T5
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Can you datalog actual coolant temp and cross-check output from ECT sensor? I don't know... does the temp go through ECU to turn on fan, or is it ECT to fan? If the latter, I would question the range on the fan.
Current Volvos:
1998 V70 T5, 112k sat 5 years, still in mechanical coma (finally at the top of the pile )
2004 XC90 T6 AWD: 186k, 60 on transaxle ( traded in )
1998 POS70 N/A: DD/training aid, 236k but really about 240k, I think...ABS module( passed on to son who sold it)
1998 V70 T5, 112k sat 5 years, still in mechanical coma (finally at the top of the pile )
2004 XC90 T6 AWD: 186k, 60 on transaxle ( traded in )
1998 POS70 N/A: DD/training aid, 236k but really about 240k, I think...ABS module( passed on to son who sold it)
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Auburn T5
- Posts: 86
- Joined: 11 May 2007
- Year and Model: 1999 S70 T5
- Location: Birmingham, AL
- Been thanked: 2 times
yestryingbe wrote:A/C on?
2020 - Tesla Model 3 Performance
2020 - XC60 T5
1999 S70 T5 - Bilstein touring shocks/struts, B&G S2 springs, OBX full exhaust, other misc. stuff
2020 - XC60 T5
1999 S70 T5 - Bilstein touring shocks/struts, B&G S2 springs, OBX full exhaust, other misc. stuff
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erikv11
- Posts: 11800
- Joined: 25 July 2009
- Year and Model: 850, V70, S60R, XC70
- Location: Iowa
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There ya go. A/C kicks the fan on regardless of engine temp. So you car is behaving as expected.
'95 854 T-5R, Motronic 4.4, 185k
'98 V70, T5 tune-injectors-turbo, LPT engine, 304k, daily driver
'06 S60 R, 197k
'07 XC70, black, 205k
'07 XC70, willow green, 212k
'99 Camry V6
153k
gone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k, '96 855 NA 169k
'98 V70, T5 tune-injectors-turbo, LPT engine, 304k, daily driver
'06 S60 R, 197k
'07 XC70, black, 205k
'07 XC70, willow green, 212k
'99 Camry V6
153kgone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k, '96 855 NA 169k
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Auburn T5
- Posts: 86
- Joined: 11 May 2007
- Year and Model: 1999 S70 T5
- Location: Birmingham, AL
- Been thanked: 2 times
ah good deal.
2020 - Tesla Model 3 Performance
2020 - XC60 T5
1999 S70 T5 - Bilstein touring shocks/struts, B&G S2 springs, OBX full exhaust, other misc. stuff
2020 - XC60 T5
1999 S70 T5 - Bilstein touring shocks/struts, B&G S2 springs, OBX full exhaust, other misc. stuff
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cn90
- Posts: 8251
- Joined: 31 March 2010
- Year and Model: 2004 V70 2.5T
- Location: Omaha NE
- Has thanked: 4 times
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Question re Aux Fan running when AC is on...
In my 1998 BMW 528i, when AC is on, the Aux fan runs. But once the speed is above ? 20-25 mph, the Aux Fan turns off as there is no need for it to run at that speed.
In the Volvo 850, S70/V70, does anyone know if the Aux Fan turns off while the car is in motion?
In my 1998 BMW 528i, when AC is on, the Aux fan runs. But once the speed is above ? 20-25 mph, the Aux Fan turns off as there is no need for it to run at that speed.
In the Volvo 850, S70/V70, does anyone know if the Aux Fan turns off while the car is in motion?
2004 V70 2.5T 100K+
2005 XC90 2.5T 110K+
2005 XC90 2.5T 110K+
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