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Burp or bleed cooling 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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2goldvolvos
Posts: 10
Joined: 26 July 2008
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Location: Ann Arbor

Burp or bleed cooling system?

Post by 2goldvolvos »

In replacing the alternator in our 94 850 NA, I dumped about a pint of coolant in removing the upper radiator hose. I filled the resevoir up to normal, but do I now need to burp or bleed the cooling system?

After the alternator replacement, the car started poorly, and the temp gauge pegs high immediately, and the CEL came on. The car was obviously stone cold. I'm hoping it was just the CTS connector getting wet from the coolant dump. Any ideas on this?
Driving used cars so the kids can go to college

03 VW Jetta GLI 24v VR6

90 Volvo 740 GLE 16v

94 Volvo 850

jimmy57
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Year and Model: 2004 V70R GT, et al
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Post by jimmy57 »

Usually there is no need for anything special if you lose a quart of coolant. Fill reservoir and then check it again later after drive in case more air was displaced.
Spilled coolant should have upset the coolant temp sensor. I suspect it got unplugged or the wire broken in the process.

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