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Car Bucks during hard acceleration

Help, Advice, Owners' Discussion and DIY Tutorials on the Volvo S80 model. Sometimes called an "executive car", the S80 was and continues to be Volvo's top-of-the-line passenger car.
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benoonan
Posts: 2
Joined: Tue Jul 10, 2018 3:19 pm
Year and Model: 2004 S80
Location: New Jersey
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Car Bucks during hard acceleration

Post by benoonan » Tue Jul 10, 2018 5:02 pm

While I accelerate in my 2004 S80, it starts to buck



benoonan
Posts: 2
Joined: Tue Jul 10, 2018 3:19 pm
Year and Model: 2004 S80
Location: New Jersey
United States of America

Re: Car Bucks during hard acceleration

Post by benoonan » Tue Jul 10, 2018 5:03 pm

Where should I start to diagnose the problem



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oragex
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Re: Car Bucks during hard acceleration

Post by oragex » Wed Jul 11, 2018 4:38 am

Possibly a faulty ignition coil. Get a use one from the junkyard and replace them one by one to find the culprit if that was the issue.

May as well be an issue with the fuel delivery (clogged fuel filter, or faulty pressure sensor)


2003 2.4i S60 automatic 125k miles

Cees Klumper
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Year and Model: S80 T6 2003
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Re: Car Bucks during hard acceleration

Post by Cees Klumper » Fri Jul 13, 2018 7:08 am

Try getting codes read at a parts supplier like autozone etc.



chrism
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Re: Car Bucks during hard acceleration

Post by chrism » Fri Jul 13, 2018 6:11 pm

How old are the spark plugs and what kind are they?



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June
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Re: Car Bucks during hard acceleration

Post by June » Fri Jul 13, 2018 6:25 pm

Is the engine light on? 5 cyl AWD, 2.9, or T6? No engine light or codes look at the CV joints. If codes are present post them. Also was any work recently done prior to the problem? On my 2004 S80 T6 both times I thought the car had a misfire it was axles both times. Neither time were any codes present or engine light on. June


My Volvo cars owned
1989 740 GLT ordered
1994 850 4door standard shift ordered
1996 960 ordered
1998 S90 ordered totalled after 3 weeks
1998 V70 GT dealer stock car
2002 S80 T6 ordered totalled
2004 S80 T6 dealer stock car and current car owned

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