Question about 1990 Lexus LS 400

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The spark plugs fire and gas is getting to spark plugs but no start

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Make sure the spark timing is right. check the timing mark is correct.

Posted on Nov 19, 2010

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2 Answers

Ram 3500 will not start batt ok turns over ok


Only two things can cause this (1) not getting gas and or (2) not getting spark.
Have someone crank while you hold spark plug wire just of off spark plug, if you see spark from wire too motor block then put a little gas into carb and see if it fires if it fires then look for a gas line or gas tank problem.

Nov 02, 2017 | Cars & Trucks

1 Answer

I have a 79 New Yorker with a 318 it has a hard time starting we just replaced air filter,fuel filter and lines plugs, Roter and cap it floods real easy


The old chryslers are very touchy. It sounds like the float is stuck on the carburetor flooding the engine or it is stuck closed not allowing enough gas to get into the cylinders. Pull a spark plug and see or smell if there is gas on it.If so is there spark? You have solid state ignition I believe. Pull a spark plug wire off of a plug and hold with insulated pliers and see if you are getting spark to the plugs. The engine needs air, fuel and spark to run. Check firing order for the wires 1,8,4,3,6,5,7,2 is the firing order. That should get you started. Let me know if you need more troubleshooting.

May 11, 2017 | Cars & Trucks

2 Answers

THE ENGINE WAS OVERHAUL AFTER THAT IT FAILING TO START JUST CRANKING BUT PROMISING ,THE SPARK IS THERE WHY PUTTING MORE FUEL ON THE PLUGS


Did you check for spark at more than one or two spark plugs? The spark is there, and the spark plugs are wet with gas? Is it flooded? Or is it getting too much gas? For a flooded engine, you know to open the intake valve wide open by holding the gas pedal to the floor, and cranking for up to 15 seconds? This will let a lot of air in and clear out most of the excess gas. Or have you tried this already?
Spark, gas, and compression: that is all that the cylinders need to run. In a well-timed engine, that is. A little gas/air mixture, then compression, then a spark is delivered and it runs. One of those three things is not right or missing for your engine not to start. Or you will have to recheck timing.

Jan 13, 2015 | Cars & Trucks

1 Answer

Turns over will not start


Depending upon your level of expertise I would say pull a spark plug and look for a spark.

Any gas combustion engine requires a fuel mixture and spark to "fire" If you know your spark plugs are firing, then the problem is most likely going to be fuel flow.

If it doesn't fire AT ALL. and you are sure you have a good spark, then its probably going to be a computer controlled fuel flow issue.

Are you getting any "service engine soon" lights? Got a really good charge on the battery? Is the engine cold like below freezing? And I gotta ask.... are your sure there is enough gas in the tank? If its low and sitting on a hill its possible its not getting any gas.

Dec 08, 2014 | 1999 Buick Regal

2 Answers

2002 kia sedona will not start, new starter , sounds like not getting gas or maybe flooding any ideas


If you smell gas it is getting gas, if not check the fuel filter. Next thing to check is to see if there is a spark. Remove the spark plug from the engine. Have someone crank the engine with the spark plug grounded, see if there is a spark. Also check for the smell of gas in the spark plug hole.

May 01, 2014 | Kia Cars & Trucks

1 Answer

Spec vin ecu specs


If it turns, then the battery is OK. Either spark plugs are not firing in proper order (wrong firing order), no power to spark plugs, or no fuel because of fuel restrictions (dirty fuel filter). Inspect the air filter to ascertain its not clogged air. If you smell gas, then you saturated the spark plugs, which is why it refuses to run.
Let it sit for half hour to let spark plugs dry. Inspect to ascertain its not dirty spark plugs, which will also prevent engine from running. After ascertaining its proper firing order, spark plugs are clean, and there's power to distributor cap, ascertain there's fuel in fuel lines by squirting half second (short squirt) of starting fluid into air filter. Close the air filter housing to trap flammable starting fluid gas. Turn engine without giving throttle. Let starting fluid be ignited by spark plugs. If it won't start, then spark plugs are not firing to ignite starting fluid gas. If it starts briefly, but won't run when you give throttle, but catches when a 2nd person squirts more starting fluid into air filter just before engine stalls, then its a fuel restriction issue or no fuel in fuel lines.

Nov 29, 2013 | Cars & Trucks

1 Answer

My 2000 Chrysler 300m wont start it turns over but wont fire its getting gas but wont fire


Are you certain it's getting gas, does it smell flooded?
Pull one of the plugs, see if its wet after cranking.
Ground plug and check for spark, if no spark, problem could be crank sensor or coil packs.

Aug 30, 2013 | Chrysler Cars & Trucks

3 Answers

My car is not starting anymore the plugs keep getting soak with gasoline does anybody know why?


The fuel soaked plugs are what's called "flooding". You need to troubleshoot the ignition system, my guess is that you're not getting spark to fire the cylinders. Was this a gradual thing or did it just fail one day?

Dec 04, 2010 | 1995 Jaguar XJ6

2 Answers

Motor turns over but will not start, seems to be getting gas, & spark


I don't have enough info to give you a specific answer so I've listed a bunch of possible problem that could cause your engine to roll over but not start.
Check the battery and connections, a weak battery or bad connections can cause a weak spark and stop the engine from firing.
Fuel pump or fuel filter, low gas pressure can cause to lean of a air/fuel mixture for the engine to start.
Bad gas, old gas or water in the gas can stop the engine from firing.
Bad or fouled spark plugs, could be caused by bad gas.
Ignition wiring problems, can cause weak or unreliable spark.
Bad, poorly connected or misconnected spark plug wires. Even 2 wire out of order can stop the engine from firing.
Oily spark plug wires, can cause the spark to fire at the wrong cylinder or misfire.
Worn, damaged or wet ignition components.

Jun 08, 2010 | 1996 Jeep Grand Cherokee

1 Answer

It getting gas and spark and will not fire


Hi , If your spark plugs are firing a good blue spark and is getting fuel it should start . I would check all the plugs to make sure there firing if they are and I would say it has skipped time so I would check the timing belt on it .

Feb 25, 2009 | 1997 Chevrolet S-10 Pickup

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