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Car won't start after replacing spark plugs!

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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ammarhaq
Posts: 22
Joined: 24 January 2008
Year and Model:
Location: Chicago, IL

Re: Car won't start after replacing spark plugs!

Post by ammarhaq »

Hi,

Thanks for the website. So while I was driving, I did notice that the car jerks quite a bit more when you release the pedal after accelerating. It jerks really bad if the car is in drive, and you tap the pedal quickly and let go. The rpm starts going up and down.

The codes seemed to suggest the TCV might be the problem. Can that be it?
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cn90  
Posts: 8251
Joined: 31 March 2010
Year and Model: 2004 V70 2.5T
Location: Omaha NE
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Been thanked: 466 times

Post by cn90 »

Did you ever fix the 2 broken wires that I pointed out earlier?
These wires were squished when you replaced the Spark Plug Cover?
2004 V70 2.5T 100K+
2005 XC90 2.5T 110K+
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j_cd
Posts: 474
Joined: 24 April 2010
Year and Model: 1998 S70 GLT
Location: Los Angeles, CA

Post by j_cd »

RPM going up and down could be an intermittant connection to one or more plugs where those wires got squished.

Do Volvos have anything similar to a Throttle Position Sensor like my Tacoma?
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