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Idle/ throttle messed up!!

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jonga

Joined: Sun Jul 19, 2009 11:30 pm
Posts: 157
Location: brisbane

Posted: Fri Sep 02, 2011 9:31 am

Hi guys when im driving and i go into neutral my sierra just idles at 1500, everynow and then it raises up to 2000 - 2500 and as of lately had been very high, I just have to let the clutch off without any accelerator and it drives off.

I had a dig around here and tried filling up the radiator with the cap off and warming the engine, but that didnt work.

So then i checked the throttle in my engine bay and it doesnt look right. The spring looks like it has come off and the the throttle is stuck down...

How can I fix it?

is there someone who can fix it for some cash or beer, looks like it would be 5 minute job for someone who knows what theyre doing.

Ive attached photos

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ROAR99

az supporter

Joined: Sat Jul 16, 2011 8:31 am
Posts: 190
Location: brisbane

Posted: Fri Sep 02, 2011 1:39 pm

where in brissie are u ..

is your zook totally stock..

lump_a_charcoal

az supporter

Joined: Wed Feb 28, 2007 10:30 pm
Posts: 4454
Location: Botany, NSW
Vehicle: MY2019 Jimny

Posted: Fri Sep 02, 2011 1:41 pm

The munted spring bit is a wax choke.

You can probably disconnect it until you can find a replacement, but it has been a while since I looked into a zook engine bay, so I could be wrong.

hooki

az supporter

Joined: Mon Jul 21, 2008 11:30 pm
Posts: 1785
Location: perth, WA
Vehicle: 85' LWB Sierra, 01' S15

Posted: Fri Sep 02, 2011 3:48 pm

looks like the cold start choke is stuck on?

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79' LJ80 (sold) :(
95' & 97' sierra (sold)

zooky08

az supporter

Joined: Fri Nov 27, 2009 10:30 pm
Posts: 3426
Location: imbil/gympie. qld
Vehicle: 03 Jimny

Posted: Fri Sep 02, 2011 8:49 pm

Its the choke spring. Not having this spring connect will prevent the choke flap closing hence high idle.

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03 Jimny 30 km2s 75mm lift f&r locked winch

jonga

Joined: Sun Jul 19, 2009 11:30 pm
Posts: 157
Location: brisbane

Posted: Sat Sep 03, 2011 12:13 am

how bad is it to drive on it?
Im in Camp Hill and its completely stock under the engine... anyone know what i can do about this?

lump_a_charcoal

az supporter

Joined: Wed Feb 28, 2007 10:30 pm
Posts: 4454
Location: Botany, NSW
Vehicle: MY2019 Jimny

Posted: Sat Sep 03, 2011 12:38 am

Pull off the carb inlet, and see if there is a butterfly that is moving freely that is connected to the busted spring. If there is, wire it open. That will temporarily get you going a bit better.

losfer

az supporter

Joined: Fri Mar 30, 2007 11:30 pm
Posts: 977

Posted: Sat Sep 03, 2011 10:54 am

if the water lines to the choke are blocked , wiring open that choke arm will not reduce the high idle.

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