Question about 1986 Toyota Pickup 4WD

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Will not stay idling

Runs great at highway speed just at low speeds. replaced fuel filter and rotor; spark plugs and wires. help

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Turn idle screw up

Posted on Aug 08, 2008

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Posted on Jan 02, 2017

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I have a 1981 toyota pickup with a 22r motor.It wont idle Have to feather it to keep running runs good at high rpm replace spark plugs rotor cap and rotor, new fuel filter.Hard starting to.but runs. have...


Check your set screw, and make sure it's not too low. Adjust the screw to the point that where it idles at the proper speed. Also, maybe check your throttle cable for too much slack.

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The PO 316 is still misfires om first 1000 revolutions
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My jeep wont stay on but i have to give it gas to turn it on


replace spark plugs wires,problem could be ignition timing,idle speed too low.intake manifold vacuum leak,check all vacuum lines on intake check pcv valve make sure its getting vacuum and the vacuum line not disconnected or cracked broken if pcv is not working engine wont run correctly.

Oct 03, 2012 | 1988 Jeep Cherokee

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My truck has a miss. cutting out real bad on the hwy at higher rate of speed with a load on it especially. I have put new plugs, plug wires, cap and rotor, and air filter on it. the old rotor had an arc...


I would also change the igntition coil if you have not done that already. Have you changed the fuel filter? I would change the fuel filter, if you have a clogged filter thenit may run good at idle and less load conditions but when you call for more fuel during hard excelleration or at highway speeds the engine will not get enough and it will lean fire and buck and miss.

Apr 08, 2010 | 1990 Toyota Pickup

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I have an 89 ford bronco 2 with a 2.9 liter it sat around for 2 years without being started. I replaced the plugs, rotor, cap, ran fuel injector cleaner through it several times, checked cylider...


check the spark plug wires are attached all the way till it snaps, pull each spark plugs, any black deposits on any plug means it isn't firing(faulty plug,or wire) last of all take off each injector wire and notice if there is a change in idle speed (plugged injector)

Mar 21, 2010 | 1989 Ford Bronco II

1 Answer

Car would not start so replaced battery, then alternator; Ran great for roadtrip then shut down on the freeway. Can hear the fuel pump, so replaced the fuel filter; has spark. Has fuel. Wires are in good...


WHEN A CAR SHUT DOWN ON HIGHWAY OR FREEWAY.YOU CAN STILL HAVE FAULTY FUEL PUMP.IT COULD BE RUNNING BUT THE FUEL PRESSURE CAN BE TOO WEAK.THE 2.5 ENGINE FUEL PRESSURE IS 6.0 TO 7.0 PSI AND THE 3.3 ENGINE FUEL PRESSURE IS 37 TO 43 PSI. ANOTHER THING CHECK TO MAKE YOUR COOLANT IS NOT LOW.LOW COOLANT CAUSES ENGINE GET TOO HOT SHUT OFF.CHECK PVC VALVE AND EGR VALVE MAKE SURE THEY ARE NOT STUCK OPEN OR DISCONNECTED.AND MAKE SURE IDLE SPEED IS NOT TOO LOW YOU IDLE SPEED IS ON THE FACTORY STICKER UNDER THE HOOD.

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Stuttering on acceleration and/or at highway speed


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The best solution is to do a complete tune up with new spark plugs, wires, fuel filter, air filter, pcv valve and oil change.. If this still happen I would get some fuel injector cleaner, or use marvel mystery oil in both your oil(crankcase) and gas tank. You can get mystery oil at walmart..its in a red bottle with black label.

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