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94 850 sedan starting problem

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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johnm2418
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Joined: 2 June 2003
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94 850 sedan starting problem

Post by johnm2418 »

My son's 850 with 220K miles runs great except that it has started to occasionally not start.

Symptons: Turns over strong but will not fire. The other day, it happened and he went inside to cool off his frustration. He went back out and popped the hood and then cranked and held down gas. It eventually caught.

Anyone have an idea of what the problem could be?

Thanks
John
98 V70 T5 122K miles
father of Chris
94 850 220K miles

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matthew1  
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Year and Model: 850 T5, 1997
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Post by matthew1 »

I'd do the obvious tuneup checklist first, then move to deeper solutions second.

Tuneup:
STP or similar injector cleaner
Air filter - new
Spark plugs - new
Check spark plug wires
Check vacuum lines for integrity
Check fuel rail schraeder valve for fuel pressure (engine off)
Check for codes
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1998 V70, no dash lights on

1997 850 T5 [gone] w/ MSD ignition coil, Hallman manual boost controller, injectors, R bumper, OMP strut brace

2004 V70 R [gone]

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