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Washed Engine Bay - Ran then Died

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

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

swamlurk
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Year and Model: 1998 Volvo V70
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swamlurk

Washed Engine Bay - Ran then Died

Post by swamlurk » Sat Sep 14, 2019 11:48 pm

Hey everyone, first post.

So I washed the engine bay using purple degreaser and just a spray bottle of water to rinse and paint brushes to get everything. I dried everything pretty good I thought with an air compressor.

It started up fine but then died after about a minute of driving. I managed to push it home and pulled the plug wires and distributor cap and blew them out with compressed air too. I then let it sit about 5 hours and tried it again and it started. So I took it for a drive again (2am here so I couldn't let it idle in the driveway - neighbors) and it died again. Not in a place I can push it home this time.

Anyone have any ideas?



precopster
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Re: Washed Engine Bay - Ran then Died

Post by precopster » Sun Sep 15, 2019 3:47 pm

Yes NEVER wash engine bay.

Remove ECM clean contacts. You may have damaged ECM by shorting pins with water.

Knock sensors are hardest to get to.

Looks good but doesn't run.


Current cars:2002 XC70, 2006 Ssangyong Rodius (Stavic), 2006 XC90 2.5T, VW Transporter 2.5TDI

www.precisioncarmodules.com.

scot850
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Re: Washed Engine Bay - Ran then Died

Post by scot850 » Sun Sep 15, 2019 5:29 pm

Unfortunately Mike is right. Biggest issue is usually distributor on -98 cars. I would remove the distributor cap and wires and let them dry our near some heat. Also check the cam sensor wires and it's connector for damp and blow out and use contact cleaner to make sure moisture is dispersed. Ensure the cam sensor wire has not been routed too close to the distributor or it will the signal for the cam sensor. Make sure the coil and cable are also dry.

Then it is as Mike says. Check ECU and box for water ingress.

Neil


2000 V70 R - still being an endless PITA
2006 XC70
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - New project and test bed - Sold

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