idle question

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idle question

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idle question - 5/20/2008 5:36:54 PM

roving patrol

Posts: 18
Joined: 4/22/2008
Status: offline

What is the best/advisable idle on a Discovery 1997? Will lower idle save on gas and engine performance?

Post #: 1

RE: idle question - 5/20/2008 6:27:29 PM

lrobin3w

Posts: 89
Joined: 9/5/2007
Status: offline

There is a specified adjustment for the base idle on your disco, It is 18 to 20 steps as measured when idling at full operating temp. I only know how to adjust this using the dealer supplied testbook equipment. I dont know how to adjust it using other methods!

(in reply to roving patrol)

Post #: 2

RE: idle question - 5/21/2008 5:53:59 AM

Disco Mike

Posts: 10365
Joined: 4/27/2006
Status: offline

If your truck has an automatic tranny, your idle should be around 700 to 750 in gear at operating temp with the a/c off.
Leave your idle alone, you won't improve you MPG by lowering it.
What sort of MPG are you getting and what have you done to improve it?

_____________________________

Mike
Retired service manager. Member of the Solihull Society, NCLR club,past member of the SCLR club and Santa Barbara 4 Wheelers.
99 D2, 3" lift, lockers, H.D. axles, 4:11 gears, Custom front and rear bumpers, Warn winch, HID lights and an Engel 45.

(in reply to lrobin3w)

Post #: 3

RE: idle question - 5/22/2008 10:37:28 AM

roving patrol

Posts: 18
Joined: 4/22/2008
Status: offline

I guess my idle is just normal then cause it is just between the 700-750 mark in gear. Mike, the only thing I do to improve my mpg is make sure that I have the recommender psi in my tires! Would that be enough or is there anything more I could do to improve my mpg?
Thanks

(in reply to Disco Mike)

Post #: 4

RE: idle question - 5/22/2008 11:37:23 AM

Disco Mike

Posts: 10365
Joined: 4/27/2006
Status: offline

Start looking at tune related stuff, including plugs, Magnacore wires, crank case flush, an induction cleaning and burn high octane.

_____________________________

Mike
Retired service manager. Member of the Solihull Society, NCLR club,past member of the SCLR club and Santa Barbara 4 Wheelers.
99 D2, 3" lift, lockers, H.D. axles, 4:11 gears, Custom front and rear bumpers, Warn winch, HID lights and an Engel 45.

(in reply to roving patrol)

Post #: 5