Question about 1995 Toyota Tercel

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Engine skipping from idle all the way to highway speed. new plugs

Started skipping . Getting worse. Have put different plugs in. Checked plug wires. Don't know settings to check the two coils.

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You should replace the wires before you spend money on the coils!

Posted on Jun 21, 2009

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Posted on Jan 02, 2017

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2010 Ford F150 would suddenly loose power and only idle. Pull over shut off sit a couple minutes crank and run fine for a while then do same thing again. Wrench would show up on instrument panel


Sounds like the catalytic converter or muffler maybe getting plugged up and the computer is putting the truck in limp home mode. Did you put a scanner on the truck. You might try to remove the 02 sensor ahead of the cat and see if it runs a little better it will not be perfect but should stay running if so do an exhaust check. When the cat or muffler gets plugged it puts back pressure on the engine and won't allow the fuel to be pulled into the engine properly.

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simple test for a vacuum brake booster
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Rough engine idle


you don`t say if you have checked anything so start with the plugs for condition and age as well as plug gap.then the ignition wires they may need changing.the engine compression can affect idle and give the impression its alright at higher speeds.fuel injectors if they are dirty can cause rough idle and run okay at higher speeds.just somethings to check

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1999 gran marq has new alternater,fuel pump and filter,spark plugs and boots but still skips while idleing and mostly while accelerating,,,getting worse also


I will try to add a few things to check. It sounds like bad plug wires or a coil going out. Sometimes if you water mist the coil and wires with a spray bottle you can see the sparks jump. It will be easier to see in a dark area with the motor running.

The Intake manifolds were changed from metal to plastic to prevent carbon buildup in the EGR passage. This would be under the Metal Airhorn and under the gasket where it attaches to the top of the Intake. There is a groove to clean that carbons up and throws bad codes and interferes with the engine running good. 8 bolts and a $10 gasket and 1Hour of your time to fix it.

You have not mentioned any codes or testing results. Your onboard computer can be checked for free at Autozone or Oreillys. Your "check engine" light should start setting defect codes if your misfires are getting worse. Also, if you can remember a wet plug when you removed your old plugs, that would be a good indicator of a bad wire for that cylinder.

Let me know if you have been fixed.

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94 jetta 2.0 manual tran. engine stopped running at highway speed///have checked computer //fuel pressure regulator//engine management relay/// have fire on the plugs///have fuel pressure in the...


Sounds like the fuel filter. It would indicate the correct pressure at idle or maybe even revving. Once the engine is put under a load (highway speeds) it begins to choke. Try replacing the fuel filter.

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1 Answer

ROUGH IDLE


Did you replace the plugs with the same plugs (Manufacturer) as the plugs you had in there. Some cars are very picky with plugs. ie: some Japanese cars will only run well with NGK Spark Plugs. Try to use only what Subaru recommends in your engine for the best performance.

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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)

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1991 Toyota land cruiser.. vibration, sputtering??


One of the plug wires may be arching or have a defective spark. It's odd, but I check mine by removing each plug wire one at a time. I'll use stick the end of a screw driver (insulated handle) in the plug wire and check the spark coming in from the coil/coil pack/distributor. Keep in mind, the engine is running and I only do this if there's no shop open or close by. Also the insulated handles are for that unwanted shock. Has he checked for sparks at night with the engine running. Look around and follow the plug wires and around coil/coil pack for any jumping sparks. If any are seen, there's your problem.

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