Nissan navara wont idle engine runs normal above 1000rpm but once revs drop below 1000rpm engine cuts out.

Marvin

• 85242 Answers
• Posted on Nov 12, 2008

SOURCE: rough idle

Have you had the throttle valve cleaned?

Here is the most common cause of surges and stalls, it is the idle speed control air-bypass valve and throttle valve, they get full of gunk over the miles and cause idle issues (stalls) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

SOURCE: rev counter falling below 1000rpm when warm, nearly stalling

If this is a 1.8 petrol model then the idling adjuster/throttle stop screw needs to be adjusted.Slight adjustment can be done without a diagnostic tool ,loosen the lock nut holding the throttle screw found near the throttle cable,adjust this in clockwise to increase revs.

ricky horwood

• 128 Answers
• Posted on Dec 27, 2008

SOURCE: High idle in cold weather

this is normal for a car of this age
carburetor type motors have a automatic choke
this is activating when you start your car as it is so cold
i would not worries about it
it is designed to make it easier to start your car when it is cold my car dose the same thing
hope this helps
ricko

SOURCE: stalls and wont idle when cold

Re the trooper. You have a couple of possibles. The most likely is the glowplugs or glowplug relay. Don't be fooled into thinking glow plugs only heat to start - the also do whats called postheat. That is to raise the cylinder temp until the block is warm. IF they are not functioning (clip a light onto one whilst switching the glowplug on to test the relay) this is common.
Most likely is a stuck EGR valve - stuck open so running a very lean mix when cold. Its two bolts on the inlet manifold, pulls out and looks covered in soot - it should push in and spring out. Can be cleaned in petrol or alcohol or with compressed air.
More remote is possible you have a faulty injector...only really testable by an engine centre...

SOURCE: 1994 mustang gt cuts out

have you been tuning it? look for the vacuum hose you knocked off.