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low coolant light?

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
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kjprov1
Posts: 7
Joined: 20 September 2009
Year and Model: 1999
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low coolant light?

Post by kjprov1 »

here we go again! just checked the codes and reset them. now backing off the lift the car bumped the bottom a wee bit hard. soon after my low coolant light is on. it is full of coolant however. over filled it looks like if anything. temp gauge is normal! where is the temp sensor located? thanks
99v70 r

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ignatz
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Post by ignatz »

The low coolant sensor in my 98 t5 is in the bottom of the coolant tank and the coolant temperature sensor is in the thermostat housing.
2002 V70 2.4
2005 S60 2.5t awd
2006 S60 t5 stick shift

kjprov1
Posts: 7
Joined: 20 September 2009
Year and Model: 1999
Location:

Post by kjprov1 »

thanks! i just disconnected the sensor underneath the bottom of the tank and light is still on, now i have a few more hours of work and then a 20 mile drive home with the light on, scary feeling any other options to look for?

Ozark Lee
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Post by Ozark Lee »

Plug the sensor back in and then smack the overflow tank. The sensors tend to stick.

...Lee
'94 850 N/A 5 speed
'96 Platinum Edition Turbo
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1999 V70XC - Nautic Blue - Totaled while parked.
1999 V70XC - RIP - Wrecked Parts Car.
1998 S70 T5
1996 850 N/A
1989 740 GLT
1986 740 GLT
1972 142 Grand Luxe

kjprov1
Posts: 7
Joined: 20 September 2009
Year and Model: 1999
Location:

Post by kjprov1 »

thanks mr ozark! i will try that in the am. also the codes i pulled were po422 and po14 i erased the codes but light came on after 4 miles or so. is the sensor the coupler beneath the coolant tank? in any event i will get to bottom of the issue tomorrow i hope. if i was in the mood i would go smack the tank a few times like u suggested. in the am i will try it.

kjprov1
Posts: 7
Joined: 20 September 2009
Year and Model: 1999
Location:

Post by kjprov1 »

all good now! tapped a few times with a rubber mallet and disconnect-reconnect a few times and all is fine. now it is time to look into the inoperable rear wiper. thank you!

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