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What is the probable cause of hard starting of engine

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Stopped up fuel filter,clogged fuel injectors,faulty fuel pump,faulty ignition coils and module, bad spark plugs faulty crank shaft position sensor,timing belt slip timing or broke,faulty ecm and theft security shut down.intake leaks, faulty idle air control valve.

Posted on May 27, 2011

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What causes CEL to flash for 1/2 mile and then go off and then not start at all after rain but start when dry?


The check engine light flashes when there is a catalytic convert damaging advent happening , like for a sever misfire . When a vehicle has a misfire problem no combustion happens in that cylinder dumping raw fuel into the catalytic convert , were it burns causing the substrate to melt . To buy a new converter could cost up to a $1,000.00 bucks ! You don't say what make ,model an year vehicle you have , so I can't say what could be wrong ! Plug wires , coil's , distributor cap if yours has one . If you have it check for DTC'S - diagnostic trouble codes , You probably have a P0300 random misfire or a P0301 - to P0308 depending on the number of cylinders Check Engine Light On

Sep 18, 2015 | Cars & Trucks

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Has a lot of trouble turning over. It tried but ususlly doesnt and once it does it smells like trsnsmision fluid. Has pleanty and oil aswell. Any ideas on why its not turnibg over?


Usually when a car does not turn over, as in starter motor fails to trn over engine, it is battery related, weak, so turn on your headlights and see if they are bright, then leave on and try to start engine, if lights dim, charge battery is first thing to do, then have battery checked, sure sign of battery going bad. Trans. fluid smell is probably a leak issue, so look under car for drips which sometimes hits exhaust which causes smell. Trans. fluid is rarely something you can smell other than when burning.
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May 14, 2015 | 2000 Ford Taurus

1 Answer

What is the causes of 4d56 Mitsubishi engine hard starting.


If its cranking slow its a power issue.
If its crankng fast but wont fire right its probably a timing belt.
I believe thats a non interference motor.

Nov 14, 2014 | Cars & Trucks

2 Answers

I accidently drove my 2000 Dodge Stratus through 1 foot of standing water. Will my engine be damaged


If your engine didn't die, it'll be fine. If the engine did die, it will probably start and run fine if it's allowed to sit for a time so that it can dry itself out. THAT is IF your engine simply got a little wet so as to cause the ignition system to fail. What can be pretty bad, though, is if the car is allowed to sit for an extended period of time in deep water.... or the water is deep enough or splashed hard enough that your air intake for your engine starts sucking in water. If it was only a foot of water, and you weren't going fast, things should be okay. If your air intake has sucked in quite a bit of water, your engine probably needs professional care.

Oct 31, 2013 | Cars & Trucks

1 Answer

I have a 2002 suzuki vitara its hard to start when its warmed up sputter and backfires but runs fine when it starts


check if your car engine valves are hydraulic or adjustable ones. If are adjustable do the valve clearance as probably are tight. If are hydraulic and I believe is possible you do a long miles oil change as a result to cause the hydraulics not to work properly. You have to do an engine oil flush and renew oil and filter and try.

Oct 15, 2012 | 2002 Suzuki Vitara

1 Answer

I have a 2002 Volkswagen Golf with a 2.0 engine. The 'check engine' light starts to blink and the car starts to shake violently, and it doesn't accelerate past about 25km/h. Then after riding...


there are a LOT of problems that could have this effect on an engine ... but from this description it sounds like your timing chain might have skipped a tooth. If your timing is off, the pistons will not fire at the correct time, and will cause a violent shake in the engine, and the engine will lose almost all power. This issue would also cause a hard start whenever you try to get your car started, so it may not be this ...
You might have a leak in your head gasket which is leaking either water or antifreeze into one of your pistons. When you start the car, is there a sweet smell in the exhaust? If antifreeze gets into a piston, it usually stops that piston from firing at all. This could cause a violent shake in the engine, and might not cause a hard start, so it would only be noticed when you start driving.
You could have a dead spot in your distributor cap -- the piece of the engine that distributes electrical charge to the spark plugs. Replacing the plugs is a first step to finding out if it is this problem -- it is cheaper and easier to do than replacing / repairing the distributor cap. When the plugs don't want to fire correctly, it has the same effect on the engine as antifreeze in your engine -- a violent shake and diminished power.
There is a SMALL possibility that it could be your transmission. If your transmission is getting stuck in the wrong gear, or between gears, the engine will try to pour out power, but will get so bogged down by the malfunctioning transmission that the whole car will shake. This is a VERY rare problem, but it does occasionally happen.
Your car's computer might not be sending or receiving the correct information to or from the engine. If this is the case, it could be pumping a different amount of fuel to each cylinder, causing the engine to fire too hard sometimes, and too soft other times. This would prevent you from getting proper acceleration, and could cause a shake in the car, but I don't think it would be a Violent shake like you described.
You could have a bent Cam, which would not allow the valves to function correctly (but this would probably keep the car from starting). It could be a bad bearing in the engine (but this would probably keep the car from starting at all). You could have faulty valves (but once again, it would probably not start at all). There are a lot of other possibilities as well ... but I think you get the point here. It is going to take a while to figure out exactly what is wrong. If you have a friend who is willing to help you out, or a really cheap mechanic that you can take it to, you'll probably save a lot of money over taking it to a corporate shop. Best of luck!

May 27, 2011 | Volkswagen Golf Cars & Trucks

1 Answer

Hard start when hot 98 ford windstar with 3.8


Try replacing the fuel filter also Has it had a tune up? they need to have the plugs replaced at 100,000 if the fuel filter does not work then the most probable cause is the fuel pump is losing pressure when hot. The pump warms up and the check valve fails to close all the way allowing a now fuel or fuel starvation.

Sep 27, 2009 | 2003 Ford Windstar

1 Answer

2001 Tahoe: Hard to start, idles rough, check engine light on.


Flashing check engine light is missfire, fuel pump probably causing multiple tries to start.Having to build fuel preasure,vac leak on one side of intake probably causing rich/lean condition.Also check back preasure to cat ,Sound like you are moving down right track.Mas air flow would probably set lean code bank1 and lean code bank2

Jun 19, 2009 | 2003 GMC Yukon XL

1 Answer

Lost of power


If you changed the belt and now its noisy and hard to start i would put money on it that you are probably off a tooth. this means the timing is not true....Also can cause alot of damage to the engine...I would check that out asap...

Jul 25, 2008 | 1992 Honda Civic

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