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Toyota revo 2002 gas engine, crank but not start,ignition coil ignite,4 spark plug ignite all,gasoline smell,crank several times but not start, advice what to check and what to replace.

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Check firing order it could be 180 degrees out

Posted on Dec 31, 2016

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Engine cranks but won,t start


Every 4 cycle gasoline auto engine needs three things: air, fuel and a source of ignition. If it cranks then the starter motor circuit and motor look to be OK. To check for ignition pull a plug wire and short it to the block with a phillips-head screw driver in the plug socket (leave a little air gap between the screwdriver and the point on the block. Be careful the output voltage from the coils can run as high as 40,000 volts and give you quite a jolt if you're not careful. If you get a regular spark from the screwdriver to the point on the block, it is likely that your ignition system is OK. If not then start trouble shooting there.
If ignition checks out OK then look for fuel starvation. Since it is a fuel injected motor there can be several places in the fuel delivery system to be checked. The first thing I'd do it crank it (no more than 30 seconds at a time unless you like replacing starter motors!) After three or four cycles of this with a non-start, pull a spark plug and insepct it by nose and fingers. If the plug smells strongly of gasoline and appears to be wet then fuel delivery is likely OK, check ignition.
I am not going into too much detail on checking the fuel system as that requires knowledge that I think an experienced mechanic needs to apply to the problem. Good luck! P.S. (Hint)The public libraries usually have "How-to" books on most automotive models in their collections.

Jul 14, 2014 | 1999 Ford Expedition

1 Answer

Hi i have a 1990 1.3 s toyota starlet i have replaced this rotoa arm dist cap all leads have recharged the battery the problem is she will turn over but will not fire in to lfe please help me


Hello, Keith, I'll try to help. The engine needs gas, air, spark, and compression to run, so those are what you need to concentrate on. If it was running good previously, but now won't start, usually it is a gas or spark (ignition) problem. I'm not familiar with the Starlet, but assume a '90 model would be fuel injected. If it is throttle body injection, you can observe the fuel spray out the bottom of injectors when the engine is cranking over. You should see a fine mist cone pattern of fuel spray hitting the throttle plates. From there it will mix with the air in the intake manifold and be fed into the cylinders. If gas is not coming out when cranking the engine, check the fuel pump and/or the fuel filter for a problem. Toyotas often had the electric pump in the fuel line close to the gas tank. If the engine is multi port injection, likely the pump will be in the gas tank. You cannot observe the injector spray on multi port, but you can determine if the injectors are pulsing, and if they are, you can be certain that gas is getting into the cylinders-that is, if the fuel pressure at the injectors is high enough where it should be. You can also pull the spark plugs after cranking it over a bit, and check that the plugs smell of gas, and may be wet with gas.
Have you checked for spark? If you suspect an ignition problem, have a helper crank the engine over while you check one of the spark plug wires for a blue snapping spark. Use a spark tester, or just push the plug wire boot back from the end and hold the metal end terminal 1/4 inch from an engine bolt or bracket- some grounding source like that. Be careful not to get shocked-hold it close to metal. Another way is to take a spark plug and attach it to the plug wire, and lay the spark plug on a metal piece of the engine-so the hex of plug or the threads are grounded to the metal. Now you don't have to hold it. Just have your helper crank the engine over while you watch for that blue snapping spark. If spark is orange or intermittent or not even sparking, then you have an ignition problem. The ignition coil or the igniter may be the problem. The igniter is what Toyota calls the ignition control module-the part that cuts the primary circuit to the coil so high current (spark) will travel to the spark plug.
Well, there is a rundown of gas and spark. If you have both, and the air filter is clean so the intake gets plenty of air, one could next check engine compression-do or have done a compression test of the engine. You didn't mention the spark plugs in your list of new parts. Are they still good, and is the gap correct on them? Post back if you need more help, or have questions. Good luck.

Jul 19, 2013 | Toyota Cars & Trucks

4 Answers

My 1991 grand marquis wont crank, it was running great on friday then sat morning it just spending i smell gas when im trying to crank it. i was thinking it as jump time


It may have jumped time. However, if you smell gasoline, it got flooded. Here is the lay of the land.
If it cranks, as in turning over but not starting. And you smell gasoline. The fuel is good, but there is not electrical spark going to the plugs. Bad coil. Cracked distributor cap. Moisture under the cap. Check this before you worry about the timing. You first have to test for ignition. Also don't pump the gas when starting it. See what happens. Also when the car is warm, never pump the gas. Also check the wire going from the distributor cap to the coil.
Good luck,
Hope this helps,
Best,
Mark

Dec 28, 2010 | 1991 Mercury Grand Marquis

1 Answer

Van cranks but will not start


Hi, if the engine cranks over normally when you attempt to start you car, but the engine does not start, the problem may be NO FUEL, NO SPARK or NO COMPRESSION. The engine needs adequate fuel pressure, a properly timed spark and normal compression to start.

To find why the engine won't start, remove the air inlet tube from the throttle body, push the throttle open and spray a small amount of aerosol starting fluid into the engine. Crank the engine. IF it has spark and compression but NO FUEL, it will start and run a few seconds before dying. If it does NOT start, it probably has NO SPARK.

Another method to check for spark is to pull a spark plug wire off of a spark plug (if it has plug wires, coil-on-plug ignitions do not) and place the open end of the plug wire near a metal surface on the engine. Have a helper crank the engine while you watch for a spark. DO NOT hold the wire while doing this as it can shock you. If you see a spark, the problem is not spark, but most likely NO FUEL or NO COMPRESSION. If you do not see a spark, the problem is in the IGNITION CIRCUIT.

Proper fuel pressure is critical for fuel injected engines to start and run. You should hear the fuel pump inside the fuel tank buzz for a couple of seconds when the ignition is turned on (no buzz means the pump is not running and the engine is not getting fuel). You can smell the tailpipe for gasoline vapors after cranking the engine. If you smell gas, the problem is likely not fuel but NO SPARK. You can also remove the plastic cap and press the schraeder valve test fitting on the fuel rail to see if there is any fuel pressure to the engine (not a very accurate test because fuel pressure must be at a certain level for the engine to start, for that you need a gauge). Even so, no fuel at the fuel rail would tell you fuel is not getting to the engine.

Dec 22, 2010 | 1996 Chrysler Town & Country

2 Answers

My vw will crank but will not start running i


Hi,


If the engine cranks over normally when you attempt to start you car, but the engine does not start, the problem may be NO FUEL, NO SPARK or NO COMPRESSION. The engine needs adequate fuel pressure, a properly timed spark and normal compression to start.


1) To find why the engine won't start, remove the air inlet tube from the throttle body, push the throttle open and spray a small amount of aerosol starting fluid into the engine. Crank the engine. If it has spark and compression but NO FUEL, it will start and run a few seconds before dying. If it does NOT start, it probably has NO SPARK.

2)Another method to check for spark is to pull a spark plug wire off of a spark plug (if it has plug wires, coil-on-plug ignitions do not) and place the open end of the plug wire near a metal surface on the engine. Have a helper crank the engine while you watch for a spark. DO NOT hold the wire while doing this as it can shock you. If you see a spark, the problem is not spark, but most likely NO FUEL or NO COMPRESSION. If you do not see a spark, the problem is in the IGNITION CIRCUIT.

3)Proper fuel pressure is critical for fuel injected engines to start and run. You should hear the fuel pump inside the fuel tank buzz for a couple of seconds when the ignition is turned on (no buzz means the pump is not running and the engine is not getting fuel). You can smell the tailpipe for gasoline vapors after cranking the engine. If you smell gas, the problem is likely not fuel but NO SPARK. You can also remove the plastic cap and press the Schroeder valve test fitting on the fuel rail to see if there is any fuel pressure to the engine (not a very accurate test because fuel pressure must be at a certain level for the engine to start, for that you need a gauge). Even so, no fuel at the fuel rail would tell you fuel is not getting to the engine.


Thank you!!

Jun 30, 2010 | 2001 Volkswagen Passat

1 Answer

My car wont start


Hi,


If the engine cranks over normally when you attempt to start you car, but the engine does not start, the problem may be NO FUEL, NO SPARK or NO COMPRESSION. The engine needs adequate fuel pressure, a properly timed spark and normal compression to start.


1) To find why the engine won't start, remove the air inlet tube from the throttle body, push the throttle open and spray a small amount of aerosol starting fluid into the engine. Crank the engine. If it has spark and compression but NO FUEL, it will start and run a few seconds before dying. If it does NOT start, it probably has NO SPARK.

2)Another method to check for spark is to pull a spark plug wire off of a spark plug (if it has plug wires, coil-on-plug ignitions do not) and place the open end of the plug wire near a metal surface on the engine. Have a helper crank the engine while you watch for a spark. DO NOT hold the wire while doing this as it can shock you. If you see a spark, the problem is not spark, but most likely NO FUEL or NO COMPRESSION. If you do not see a spark, the problem is in the IGNITION CIRCUIT.

3)Proper fuel pressure is critical for fuel injected engines to start and run. You should hear the fuel pump inside the fuel tank buzz for a couple of seconds when the ignition is turned on (no buzz means the pump is not running and the engine is not getting fuel). You can smell the tailpipe for gasoline vapors after cranking the engine. If you smell gas, the problem is likely not fuel but NO SPARK. You can also remove the plastic cap and press the schraeder valve test fitting on the fuel rail to see if there is any fuel pressure to the engine (not a very accurate test because fuel pressure must be at a certain level for the engine to start, for that you need a gauge). Even so, no fuel at the fuel rail would tell you fuel is not getting to the engine..



Thank you !!

May 30, 2010 | 2002 Cadillac Deville

1 Answer

My Dodge Caravan 1998, was running good, i parked the van for 25 minutes, When came back, don't wanted start. I already change the gas pump, the battery, crank sensor, spark plugs... What can i do now?


You need to do some analysis. An engine requires fuel and compression to start and run. If there is no compression, the sound of the cranking is very different. Since you did not mention that, I suspect that is not an issue.

Smell the exhaust pipe, then crank for a while. Smell the exhaust pipe again to see if there is a gasoline smell. (Don't put your head near the exhaust while cranking; if the engine happens to light off, or even if it just gets a little flame into the exhaust, you can be injured by the exhaust.)

If there is no increase in gasoline smell, you probably are not getting and fuel to the engine. You can try, in that case, spraying some starting fluid into the intake to see if that cause the engine to start briefly. If it does, you know for sure that the mechanical and the electrical aspects of the engine are functioning.

Pull a park plug out of the engine, put the plug back into the boot at the end of the plug wire, lay it on the metal of the engine. Then have one person crank the engine, and check to see if there is a stout spark in the gap of that plug. If not, you have an ignition problem: Bad coil, connection has fallen off the coil, bad ignition switch, etc.

One thing that can cause this kind of abrupt, complete failure is for the timing belt to break. If your engine has a timing belt, visually establish that it is going around with the engine.

Mar 07, 2010 | 1998 Dodge Caravan

1 Answer

I hawe a 2002 fird explorer and wont start will crank and hawe gas in system but no sparks on spark plugs


Roughly 4 possibilities. First to check would be ignition switch, by determining if power getting to coil when key turned on. Second would be coil. These days you have to take it in, but most part places will check it for free. Third it the control module. Same advice. Forth is the distributer pickup. Same advice again, except put the engine on TDC and mark the pointing of the rotor on the shaft, so that you can put the distributer back in more easily.

Oct 31, 2009 | 2002 Ford Explorer

3 Answers

"Cranks, but won't start". Replaced fuel pump, CKP, ICM & nothing


If the engine cranks over normally when you attempt to start you car, but the engine does not start, the problem may be NO FUEL, NO SPARK or NO COMPRESSION. The engine needs adequate fuel pressure, a properly timed spark and normal compression to start.


1) To find why the engine won't start, remove the air inlet tube from the throttle body, push the throttle open and spray a small amount of aerosol starting fluid into the engine. Crank the engine. If it has spark and compression but NO FUEL, it will start and run a few seconds before dying. If it does NOT start, it probably has NO SPARK.

2)Another method to check for spark is to pull a spark plug wire off of a spark plug (if it has plug wires, coil-on-plug ignitions do not) and place the open end of the plug wire near a metal surface on the engine. Have a helper crank the engine while you watch for a spark. DO NOT hold the wire while doing this as it can shock you. If you see a spark, the problem is not spark, but most likely NO FUEL or NO COMPRESSION. If you do not see a spark, the problem is in the IGNITION CIRCUIT.

3)Proper fuel pressure is critical for fuel injected engines to start and run. You should hear the fuel pump inside the fuel tank buzz for a couple of seconds when the ignition is turned on (no buzz means the pump is not running and the engine is not getting fuel). You can smell the tailpipe for gasoline vapors after cranking the engine. If you smell gas, the problem is likely not fuel but NO SPARK. You can also remove the plastic cap and press the schraeder valve test fitting on the fuel rail to see if there is any fuel pressure to the engine (not a very accurate test because fuel pressure must be at a certain level for the engine to start, for that you need a gauge). Even so, no fuel at the fuel rail would tell you fuel is not getting to the engine..

Aug 27, 2009 | Chevrolet Camaro Cars & Trucks

3 Answers

2002 Jeep Liberty Prolonged Cranking problem


it sounds like your timing system is on its way out the belt probably has streched and is close to not working at all.when u turn your ignition and applies power to the starter for the vehicle to start the piston must be in the right position when the electrical current ignites the spark plug. if u smelled gas thats from fuel that didn't explode in the chamber from a misfire, the misfire is because the spark and the chamber position are not in sync

Jul 13, 2008 | 2002 Jeep Liberty

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