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Hart to start back fair and no power

Set tappets,spark plug came sensor taming

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Sounds like a timing issue

Posted on Dec 12, 2014

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Posted on Jan 02, 2017

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Nissan sentra 2000, start but not fairing, spark plugs have been checked, fuel pump is ok. What we be the problems?.


Start, but not... what? "fairing"? You mean firing? But if it starts, it has to be firing the spark plugs?? If not firing, then ignition system is not working-plugs, plug wires, ignition coils, ignition control module, crank position sensor, and ecu- these are all part of the ignition system.

Mar 02, 2016 | Nissan Cars & Trucks

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Car wont start


Either you are not getting spark or not getting fuel. A bad crankshaft position sensor would cause no spark at all. You can pull one spark plug, place it back on the plug wire. Lay the plug electrode next to a metal surface. Have someone else crank over the engine while you observe for spark. You should see a spark jump from plug to the metal surface. (plug electrode should be no more than 1/4" away) If you don't have spark, put the plug back in and move on to the next plug and try that one. (the correct way is to use a spark tester) If you have no spark in any plug, you may want to test the crankshaft position sensor with an ohmmeter. You can also use a meter to test power at the ignition module.
If you find that you do have spark in every plug, then it's possible that you don't have fuel. There is a fuel pressure test port on the fuel rail. There is a cap and a valve. With the key in ON position ,you can place rag over the test port, press in on the valve and there should be fuel that comes out meaning there is fuel pressure. (the correct way is to use a fuel pressure gauge if you have one)
If you find there is no fuel pressure, turn the key off and back on again. You should hear the fuel pump. If you can hear the fuel pump, then it is working. That means you may have a plugged fuel filter or faulty fuel pressure regulator. If you do not have hear the fuel pump, check the fuse and fuel pump relay. You can test the relay and a fuse with an ohmmeter on the ohm setting. You can also use a voltmeter and check power to the relay and also to the fuel pump to test for 12 volts. If you have power to the pump but the pump is not running, it is likely faulty. If you don't have power to the pump, then either the relay or fuse is bad. If they test out ok, then test power from ECM.

These are the most common causes of a no start. If you have any bad sensors of any sort, it would likely set of the check engine light. Then the computer should be tested for engine codes which can be done with a scan-tool.

on Jun 18, 2010 | Chevrolet 2500 Cars & Trucks

Tip

Engine will not start


Either you are not getting spark or not getting fuel. A bad crankshaft position sensor would cause no spark at all. You can pull one spark plug, place it back on the plug wire. Lay the plug electrode next to a metal surface. Have someone else crank over the engine while you observe for spark. You should see a spark jump from plug to the metal surface. (plug electrode should be no more than 1/4" away) If you don't have spark, put the plug back in and move on to the next plug and try that one. (the correct way is to use a spark tester) If you have no spark in any plug, you may want to test the crankshaft position sensor with an ohmmeter. You can also use a meter to test power at the ignition module.
If you find that you do have spark in every plug, then it's possible that you don't have fuel. There is a fuel pressure test port on the fuel rail. There is a cap and a valve. With the key in ON position ,you can place rag over the test port, press in on the valve and there should be fuel that comes out meaning there is fuel pressure. (the correct way is to use a fuel pressure gauge if you have one)
If you find there is no fuel pressure, turn the key off and back on again. You should hear the fuel pump. If you can hear the fuel pump, then it is working. That means you may have a plugged fuel filter or faulty fuel pressure regulator. If you do not have hear the fuel pump, check the fuse and fuel pump relay. You can test the relay and a fuse with an ohmmeter on the ohm setting. You can also use a voltmeter and check power to the relay and also to the fuel pump to test for 12 volts. If you have power to the pump but the pump is not running, it is likely faulty. If you don't have power to the pump, then either the relay or fuse is bad. If they test out ok, then test power from ECM.

These are the most common causes of a no start. If you have any bad sensors of any sort, it would likely set of the check engine light. Then the computer should be tested for engine codes which can be done with a scan-tool.

on Jun 18, 2010 | Chevrolet 1500 Cars & Trucks

1 Answer

97 geo prizm mis firing


1. Check resistance of the spark plug high tension cords. (approx. 6 KOhms to 25 K Ohms with DMM on the range adjusted to 10K or 20K whatever range is available on the meter).
2. Check the distributor cap and rotor (if it is distributor type ign. system, other wise CMP and CKP sensors).
3. Adjust the spark plug gap to 0.7 mm - 0.8 mm.
4. Check the valve tappet clearance. (0.25 - 0.30 mm)
5. Check the valve timing.
6. Check the MAP sensor.

Dec 10, 2013 | 1994 Toyota Corolla

1 Answer

Chevrolet spark 800cc tappet settings


can someone help i have a chevy spark 2003 800cc. we redone the whole engine it has drive for 276km and it just cut out and since we can't get it to start and the diagnostiucs don't pic up anything

Mar 31, 2013 | Cars & Trucks

2 Answers

1994 Chevrolet Astro It takes 2 to 5 cranks to start. Each crank turns the cars electrical stuff on and revs the engine however it doesnt start.What is the issue?


Either you are not getting spark or not getting fuel. A bad crankshaft position sensor would cause no spark at all. You can pull one spark plug, place it back on the plug wire. Lay the plug electrode next to a metal surface. Have someone else crank over the engine while you observe for spark. You should see a spark jump from plug to the metal surface. (plug electrode should be no more than 1/4" away) If you don't have spark, put the plug back in and move on to the next plug and try that one. (the correct way is to use a spark tester) If you have no spark in any plug, you may want to test the crankshaft position sensor with an ohmmeter. You can also use a meter to test power at the ignition module.
If you find that you do have spark in every plug, then it's possible that you don't have fuel. There is a fuel pressure test port on the fuel rail. There is a cap and a valve. With the key in ON position ,you can place rag over the test port, press in on the valve and there should be fuel that comes out meaning there is fuel pressure. (the correct way is to use a fuel pressure gauge if you have one)
If you find there is no fuel pressure, turn the key off and back on again. You should hear the fuel pump. If you can hear the fuel pump, then it is working. That means you may have a plugged fuel filter or faulty fuel pressure regulator. If you do not have hear the fuel pump, check the fuse and fuel pump relay. You can test the relay and a fuse with an ohmmeter on the ohm setting. You can also use a voltmeter and check power to the relay and also to the fuel pump to test for 12 volts. If you have power to the pump but the pump is not running, it is likely faulty. If you don't have power to the pump, then either the relay or fuse is bad. If they test out ok, then test power from ECM.

These are the most common causes of a no start. If you have any bad sensors of any sort, it would likely set of the check engine light. Then the computer should be tested for engine codes which can be done with a scan-tool.

Jun 18, 2010 | 1994 Chevrolet Astro

2 Answers

My 1985 nissan 300zx 2+2 run crappy when engine is


PROBABLY IS TIME TO DO A TUNEUP SPARK PLUGS AND WIRES

Aug 04, 2009 | 1985 Nissan 300ZX

1 Answer

1999 kia sportage shut down on highway.


It sounds like the hydraulic tappets have bled down due to lack of oil.This causes no or low compression resulting in a non start. Best cure I tried was too remove all spark plugs and With a fresh battery crank the engine for a few minutes ( it will crank over quicker without the plugs and allow the tappets to pressurize with oil. Re fit the spark plugs and then try to start it again.

Apr 07, 2009 | 2000 Kia Sportage

1 Answer

1992 Mitsubishi Pajero hard to start without pressing acelerator


check the state of your coolant temp sensor,fuel filter check spark plugs also

Feb 08, 2009 | 1995 Mitsubishi Montero

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