1996 Volvo 850 Mass air flow sensor

1996 VOLVO 850
172,000 MILES • 2WD • AUTOMATIC
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JAMESMOSS726
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  • 1 POST
My car has a rough idle only when it's in park and I bought mass air flow sensor cleaner and I cleaned it and put it back in and then I started the car again and the idle sounded smooth and then I cut it off and came back twenty minutes later and started it back up and the rough idle was back and I was just wondering if there is a way I could fix it and if it maybe something else other then the sensor
Oct 5, 2014 at 4:37 PM
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STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
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With rough idle problems we need to start with a compression test across all cylinders, I rough idle could mean one of the intake valves is leaking.

https://www.2carpros.com/articles/how-to-test-engine-compression

Let me know what you find, thanks for using the site :-)
Oct 8, 2014 at 9:02 PM
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