High idle in park.

Does your Mitsubishi L300 make a strange noise? Need wheel alignment specs?
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north54
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Vehicle: 1989 P35W
Location: Vancouver

High idle in park.

Post by north54 » Mon Apr 08, 2019 1:03 pm

Hey guys my L300 has a little quirk. So if I'm out driving for a bit (getting the engine adequately hot) Then I place the van in park the idle will suddenly creep up to 1200RPM or so and stay there. It will not do this if my headlights are on. Any ideas why it will creep up in park? Its making my turbo wind down increasingly difficult. Any thoughts on this?

PS it will idle at around 750-800 once first started and when I'm stopped at a light.

If I wasn't clear enough I have a video I can post. Thanks all!
TRUSTY RUSTY

sk66
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Vehicle: '91 Delica L300
Location: Pennsylvania, USA

High idle in park.

Post by sk66 » Tue Apr 09, 2019 1:34 pm

AC turned on?
Steven
1991 L300
Harrisburg, PA

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Growlerbearnz
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Vehicle: Delica P25W
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High idle in park.

Post by Growlerbearnz » Tue Apr 09, 2019 4:07 pm

When it's doing this, open the engine cover and check that the throttle lever is resting on the idle speed screw like it should be. As Steven says, it might be your AC idle-up solenoid holding the lever back (or binding in the accelerator cable, or the kickdown cable, or... or... or... lots of things.)
Nothing says "poor workmanship" more than wrinkles in the duct tape.

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