Question about Cars & Trucks
Qr20 engine is idling too high
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Posted on Jan 02, 2017
SOURCE: Idle is very very High
Check under the hood for any small vacuum hoses that are broken or disconnected. You will find a lot of small hoses! Most high idle problems are the result of a vacuum leak. Try idling the engine and spray short bursts of WD40 in different areas under the hood. If the engine idles lower when the stuff is sprayed in an area, that is more than likely where your leak is. Don't go overboard with the WD40, just short bursts.
Posted on Oct 27, 2008
Check your Ignition timing before anything
check your plugs see what color they are
red or orange means carb is to lean , black
or oil means to rich then you can go from there
and set mixture screws on carb , let me no how you make out .
Posted on Mar 09, 2009
SOURCE: High Idle
I have a 2001 Nissan Altima and mine did the same thing. We replaced the intake gasket. It costs around $5.50, but it requires several different kinds of tools. We spent over $100 in special sockets, etc. But once you replace that gasket, it will idle better.
Posted on May 14, 2009
Tips for a great answer:
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Engine stalling and rough run
issue at low speeds
This problem is commonly caused by a dirty automatic idle speed control valve and throttle valve. Buy a can of throttle valve cleaner (do not use carburetor spray cleaner!) from NAPA or Carquest (made by CRC chemicals) and spray it into the air intake while the engine is running, use up about 1/2 the can, engine will try to stall hold the speed up, shut it down and let it soak for 30 minutes, restart and blow out the remaining fluid, shut it down and disconnect the negative battery cable for 5 Min's to reset the base idle control
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Nissan Pathfinder Backfires? http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-backfires.html
---------How to adjust rpm? http://schematicsdiagram.blogspot.com/2011/12/how-to-adjust-rpm-on-2009-dodge-charger.html
------------Engine cuts out at 3000 RPM? http://schematicsdiagram.blogspot.com/2011/12/engine-cuts-out-at-3000-rpm.html
----------This will help.Thanks.
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