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850 gets real finnicky when damp or raining

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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meatball1
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Joined: 11 November 2006
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850 gets real finnicky when damp or raining

Post by meatball1 »

I have (2) non-turbo 850's, '96 manual trans. and '97 auto trans., and both do not like to run in the rain or when heavy dew or misty conditions prevail. Any suggestions?

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Tsquared
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Year and Model: 11 C30
Location: Atlanta GA
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Post by Tsquared »

Just tht oposite for my 96 NA 850. When it is misting rain the denser, cooler air makes the engine run stronger and get better fuel economy.

Keep us posted on what you find.
'11 C30 T5

'96 854 - died an early death with 184K miles. Killed by the front end of an LTD on a suicide mission (T-boned and both cars totaled).

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billofdurham
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Post by billofdurham »

Do they not run at all or do they just have poor performance when damp?

If the latter try spraying the plug leads and ignition system with Damp Start.

Bill.
Work was good - retirement is better.

1996 850GLT 2.5 20v Estate Manual.
1995 Peugeot Boxer 2.5Tdi Autosleeper.
Previously:
1984 244DL, Manual, Beige.
1987 744GLE, Manual, Green.
1991 960 3.0 24v, Auto, Silver.
1994 940T Wentworth, Auto, Blue.

turbotim2
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Post by turbotim2 »

Distributor cap/plugs/plug wires - I bet its one of these.
2004 XC70

2005 S60 2.5T AWD (gone)

1996 850 GLT Wagon in Blue (gone)

1996 850 GLT Wagon in Green (gone)

JRL
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Post by JRL »

turbotim2 wrote:Distributor cap/plugs/plug wires - I bet its one of these.
I agree.
Change plug wires and your dist.cap and rotor
I'll bet inside it will be damp (or just plain wet)
Also pull a plug to see if it's also wet.
If water got to them they never completely dry

meatball1
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Joined: 11 November 2006
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Post by meatball1 »

I am awaiting the new plugs, wires, distributor cap and rotor. I am hopeful and if it works on one, I will do the other!

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