Question about 2004 Volvo S80
Our 2005 Volvo S60 has a rough idle when cold and the check engine light comes on with a text message to "slow down or shift up" even though the transmission is changing OK.
Sounds like an oxygen sensor (there are two). I had a recent problem where I had a rough idle and my S60 continued to stall out. Turned out to be the rear oxygen sensor. After replacement, car idles nicely and car drives normally.
Posted on Jun 30, 2009
Fix the switchblade key with a broken locking mechanism so that when it is inserted slot down the case of the key does not hang just over the knee(1/4 Inch) like a lever.. with a key chain the broken switchblade key is hanging on the right knee and can easily turn the ignition switch off..similar to the GM recall problem..Solution insert key slot side up so key does not hang and take the key chain off..2nd solution fix the switchblade key locking mechanism so it doesn;t matter whether key is slot up or down..
Posted on Apr 01, 2014
I have a 02 S60. Was having the same problem. Turned out to be the Ignition Coil. There is one per cylinder. Looks like a boot that goes on top of the spark plug. Have like an auto parts store pull the codes to find which cylinder is"mis-firing". Or inspect them and look for defects such as cracks.
Posted on Mar 05, 2010
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Posted on Jan 02, 2017
Tips for a great answer:
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brake pedal remains on floor?
accelerator pedal sensor?
For rough idle issues and problem troubleshooting,go through the help links provided below :----- van idles rough?
will not idle when cold?
runs lean and idles rough?
Engine stumbles coming off idle when warm?
Erratic idle on car?
Low idle when cold out side?
Idle Air Control (IAC) Valve Replacing?
Engine quits at idle?
Car overheats and Air blows hot at idle?
While stop engine idles like cylinder missing?
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