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94 850 - Random Stalls and Hard to Start Topic is solved

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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erikv11
Posts: 11800
Joined: 25 July 2009
Year and Model: 850, V70, S60R, XC70
Location: Iowa
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Re: 94 850 - Random Stalls and Hard to Start (FI Relay)

Post by erikv11 »

Absolutely. Nice work you have found a demon. Be careful replacing the injector relay, the connector on that one is a known weak spot. It sounds like yours the issue is the relay, not the connector, but inspect it carefully when you go in there.

The ECT might be contributing to the hard start or might not. I can;t see the fuel injector relay making the fan run but not sure. You could wait on that one to see what happens after you sort out the fuel relay, but if it has never been replaced, now might be a good time. The ECT also has a fragile connector, be careful! And it really needs to be the factory brand, don't buy a cheap aftermarket ECT.
'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 :shock: 153k
gone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k, '96 855 NA 169k

jjs70pdx
Posts: 59
Joined: 1 August 2011
Year and Model: 2000 Volvo S70 AWD
Location: Salem, OR

Post by jjs70pdx »

Just confirming I've been driving my car three weeks without any further issues since replacing the fuel injector relay. I haven't had the cooling fan come on since then so I am waiting on replacing the ECT.

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