idle rpm on 850 Topic is solved

carlo · Post by **carlo** » 26 May 2004, 21:25

hi,

just got this 850 wagon with 115k, manual transmission - nice!
what's the correct idle rpm on 850? mine '96 is about 1,000 - i think that's a bit high. any idea how to adjust it or how to investigate?

cheers & thanx!

Post by **matthew1** » 26 May 2004, 22:47

Make sure the air intake path is clean and free of gunk. Make sure air filter is clean/new. If you can get to the throttle body, spray some cleaner in it if it has a tar-like resin. All those will cause high idle.

carlo · Post by **carlo** » 27 May 2004, 13:54

matthew1 wrote:Make sure the air intake path is clean and free of gunk. Make sure air filter is clean/new. If you can get to the throttle body, spray some cleaner in it if it has a tar-like resin. All those will cause high idle.

matthew,
thankx for the tip. the air filter is clean. i'll try the intake next.

carlo, nyc

carlo · Post by **carlo** » 30 May 2004, 12:59

cleaned air intake and throttle valve, but no change in decreasing idle rpm.
(also changes spark plugs and wire set, rotor cap and distributor).
is it perhaps adjustable through the accelarator linkage or through throuttle link?

potroast · Post by **potroast** » 12 Jun 2004, 01:32

I've got a 1994 Volvo 855, and it idles between 800-1000 RPM. I have accepted this as normal due to our very weak engines (especially at lower RPM).

My friend's 1993 Volvo 854 idles within the same range, as well.

Post by **matthew1** » 12 Jun 2004, 06:23

You know, mine idles at 900 or very close to 900. I should have posted this earlier after truly reading the original question, but my brain was in the OFF position that day I think.