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I bought a 94 nissan navara was running perfect and now wont start. Have changed plugs, points, coil, distributor cap,still wont run.

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  • zec000
    zec000 Dec 15, 2012

    All that is perfect. It has us stumped.


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Answer the following questions and you will win.
1. Are you getting fuel to the engine?
2. Are you getting a spark at the plugs?
3. Is your timing correct?
4. Is your compression good?

Posted on Dec 12, 2012

  • zec000
    zec000 Dec 15, 2012

    All that is perfect. has us stumped. tried battery too.


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SOURCE: wont start

if i drive my bronco to work shut it off it wont start sounds like it has a dead battery if i let it sit for an hour it will start back up can you tell me if you know what it is

Posted on Jan 03, 2009

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SOURCE: 1995 camaro z28 keeps loosing fire

it might be the optispark harness starts and runs good. once u turn it off its hard to turn back on?

Posted on Apr 06, 2009

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SOURCE: 2002 Nissan Navara will not start after changing battery

dealer only to reset factory immobiliser

Posted on Jun 20, 2009

  • 1857 Answers

SOURCE: 94 toyota land cruiser runs rich, rough idle, no power

You have a fuel injected car. Things that can cause too rich would be a bad altitude sensor like the map or mass air flow depending on which one you have.
Anything that would cause excess air to go into the exhaust system like a cracked exhaust pipe before the 02 sensor, or low compression, or a stuck open pcv valve, intake gaskets, throttle body base gasket.
Or a Throttle position sensor which is telling the computer you foot is on the gas when it is not.
Its possible you have a bad PCM,, or coolant temp sensor saying the motor is still cold as its warming up.
Its possible you have a vacuum hose somewhere on the engine with a big crack in it or its just inplugged and you dont see it.

But my first guess would be possibly a bad computer.
Try creating a big vacuum leak when its loading up. It should run better.

Also if you have an egr valve it could be stuck open a little causing excess air or an idle air control valve stuck open.

Does it clean up if you rev it up or does it blow black smoke reved and at idle. This could point towards the altitude sensor.

Posted on Dec 22, 2009

  • 327 Answers

SOURCE: 98 jeep cherokee wont start it is not getting fuel

i just had the same problem on a 1997 4.0 . crank sensor is most likely bad you can spray starting fluid in the intake tube and car will start meaning you have spark but injectors will have no power I.E. crank sensor is bad 38.00 dollars at local parts store dealer told me 170.00 dollars make sure you push it all the way in when you install it i just posted a fix for this on this site today . after you start the car if it gives a misfire code and check engine light comes on loosen the crank sensor bolt and push it in again then tighten the bolt the cardboard on the sensor for the air gap wares off a little bit enabling you to push the sensor in a little bit more misfire should be gone there is only a few thousands of an inch adjustment for the air gap and it makes a difference. hope this helps

Posted on Jul 24, 2010

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if spark, suspect rotor arm is not setting spark to each spark plug lead.
open distributor and clean the rotor arm with a cloth or wire wool
not sand paper as this will take off too much and cause a problem

2 check inside distributor for moisture. spray inside with WD40 or equiventy water repelent.

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4 turn over engine with distributor cover removed to see if rotor arm is moving if not then cam drive to distributor is defective. this controls points and rotor arm.

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You got a timing chain
Injector cleaner,in my opinion is a waste of money
PO306 could be a missing coil on cyl #6,still should start
PO325 Knock Sensor-most likely okey
Plugs,cap and rotor,will not prevent it from starting,it used to run with old parts, before the current problem!

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Make a diagram of the dist cap wire locations.
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