Question about 1990 Honda Civic

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Car will not start

It has gas,battery is good.good spark,timing correct.but car will not start

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Check the fuel pump Relay.

Posted on Dec 08, 2012

  • hctor lopez Dec 08, 2012

    thanks for the answer vernon,but i think its not the problem,the pump is pumping fuel into system.but i will check the relay.



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Getting fuel and spark but will not start

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Why won't it start?

You say that but something is wrong!! If the engine is catching then the fault may not be major. I am assuming the vehicle is gas rather than diesel... Check the sparl plugs are clean and undamaged and correctly adjusted. Check they all give a good spark. Uou say that fuel is present, it has to coincide with the introduction of the spark in the combustion chamber...if it does not the vehicle will not work.
If all plugs give a very good spark check the fuel supply is adequate and then the timing.
If the plugs give a weak spark at the electrode replace the wires also check that the distributor cap is in god condition. A weak spark might also be associated with a failing coil/coils

Ensure your battery is full of electrolyte and is fully charged


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I have a toyota nadia d four engine with aproblem of not starting.changed pistons,valves,plugs,head gascket and oil.after that the car is cranking but not starting

If you give it time to cool off between starting attempts, it should hold up to it. If you use the starter for 15 seconds trying to start it, then give it a full minute to cool off before trying again.

Do you have compression in all cylinders? That and spark and gas is all a good-timed engine needs in order to run. Actually I would do it in this order: check for spark going to the spark plugs, if good, check that gas is getting into engine (carb or fuel injected? you would see gas coming out of either one- down the throat of the carburetor, or out the bottom of the fuel injector in a cone pattern, while cranking the engine over and watching). If spark and gas are good, then better check compression. See if your work really sealed the cylinder chambers. A compression test will verify this. Cause the next thing you will have to check is if the valve timing is right. You will need to make sure the timing marks are spot on. This may be a tedious job. Removing a few parts to check the timing marks.

So just remember, spark, gas, and compression. that's what the cylinders need to fire and run, but the timing has to be correct.

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F6a efi wont start

there is the list , and correct order that always works.
1: fuses. good?
2: 12vdc to all EFI parts (battery charged? at 12.6vdc? rested)
use a voltmeter, no guessing... and the VM dont lie.
3: good compression, on all cylinders. 150psi w.o.t
if all are real low the cam belt/chain slipped. (generic post)
4: good spark, the ECU cuts fuel ifs spark is gone, so spark
on gas engines, is #4. i check timing to see if cam slipped.
5: good fueling. (too much or too little, it will not start)
i check for flooding with spark plug tip checks, soaking wet is flooding.
dry is lost fuel, try test fuel check now, (spray fuel)
if flooded do the super secret unflood test in the operators guide.
SS-= cranking with wide open throttle.

i bet its running now.

skipping 60k mile tune up's will cause no starts
as will bad fuel.

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Truck wont's turning over, new battery, but it's not firing up..

In order for a car to run, it needs a spark, gas and the timing to be correct.
Without paying attention to the last item, because a mechanic will need to do that, are you getting a spark and if so are you getting gas (fuel pump no good, gas filter clogged, is there gas in the car).

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Car won't start

If by "trying to start" you mean that the engine is turning then it isn't the starter that's bad as a couple have said. The starter's sole purpose is to spin the engine so it can start if, gas, spark, compression and timing are correct. If any one of those four are not available the starter can spin the engine until the battery dies and it won't start. If you don't know how to check for proper delivery of fuel, spark, timing and compression then I'd suggest taking it to a reliable mechanic.

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