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Engine flooded with fuel on start up - 1997 Saturn SC

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Sound like you have stuck injector, wide open,put a fuel pressure gage on it see if it drops when you shut key off

Posted on Jan 15, 2009

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1997 sl2 satun started with rough idol now won't start . cranks over and floods. has new fuel filter & air filter


Check the fuel pressure regulator. Pull the vacuum hose off it, If it smells of gas, Replace the regulator. Diaphragm broke and is flooding the engine threw that vacuum line. You'll also need to replace the spark plugs. Gas will foul them out also.

Dec 31, 2016 | Cars & Trucks

1 Answer

Have a 2004 nissan altima plugs getting wet with gas take them out and dry car starts but same problem after 5 6 hrs won't start again what's the problem


Your engine is flooding with fuel which is why you have wet plugs and why you are having problems starting the car. A flooded engine will not start.

It sounds like a recurring flooding problem rather than a one off and the injectors may be leaking. One way or another too much fuel is being delivered by the injectors.

Get the car into Nissan Service and have them check it over and identify the cause.
Here is some information on the flooding problem prepared by a professional master mechanic.

Flooded Engine

Jan 25, 2016 | Nissan Cars & Trucks

2 Answers

Injector sprays too much fuel after starting. Engine floods out


Suspect (potentially) either a stuck injector, or a failed/failing fuel pressure regulator. One sign of a failed fuel pressure regulator can be gas in the oil. (I suffered that side effect, along with bogging, and black smoke rich running, worsening as warmed up, turned out to be fuel pressure regulator). If the injector is loose in the throttle body, or has bad o-rings, can also cause some wonky behavior. Good luck.

Mar 14, 2015 | 1992 Geo Tracker

1 Answer

2005 chevy cavalier flooded fuel system engine wont start


check your fuel pressure regulator,pull the vacuum line off it is wet with fuel,replace it,then put vacuum pump on regulator side see if it hold at least 15 psi steady,if it start loosing vacuum ,change it,

Oct 20, 2014 | 2005 Chevrolet Cavalier

1 Answer

Engine flooding


Check the fuel pressure. The pressure regulator may have gone bad and is delivering too much pressure to the fuel rail, thereby flooding the engine.

Dec 07, 2013 | Cars & Trucks

1 Answer

2003 Suzuki Grand Vitara won't start engine


what engine, state engine size and country.
there can only be 3 ways, to fail.
bad engine (low compresssion, us the $20 tool at WOT and see over 170psi.
Bad spark
bad fueling.
just because spark coils (COPS?) work on other car , dont mean much.
what counts is your car , its a system.
the cops, have fast 5mS pulse when firing, you using a scope to see that?
Im so curious, why not to the time old test, use a real spark plug
attached to the COP end, spark plug shell grounded to engine metal
and crank, is spark good x4? or x6 if V6 (engine NOT STATED)
is it? then spark is good, leaving fueling.
do not touch the spark plug cranking, it can hit 100,000 volts.
I use a ground strap on the spark plug casing, hands free, or you can be hurt bad, by the spark or when you jump and cut arm backing off
on cars that flood, is it flooding?
I found my engine compression good, then found all 4 sparks fire good.
so i pull the fuel pump relay. killing fueling.
i then use "test fuel" to start engine (again, text book tests)
I use the new CRC brand of test fuel with top end oiling.
i spray it in the plenum, and it starts.
if the spark plugs are bad, (part oftune it up)
it may not start if flooded,
use WOT at the throttle (cuts fuel) and start any flooded engine.
if the spark tips are black and stink of raw fuel (wet with fuel)
that means flooding.
pull the fuel pump relay ,test fuel runs for 3 seconds. each time.
3 second spray max. each time.
if that works out, then find reason for flooding if flooding.
if not flooding, you find dry sparks.
then trouble shoot no fuel.
fuel pressure not near 30 PS?
fuel pressure too high say, 60, it will flood for ever.
there are only 3 tests.
and 4 counting wet /dry sparks.
the tests done, will put you on the correct path every time.
no guessing, no swapping parts to other cars.

May 28, 2013 | 2003 Suzuki Grand Vitara

1 Answer

Trys to flood on cold start


what vechicle type model and the year.older cars carb type if automatic choke not working or vacuum pull off not working carb will flood out engine.for cold start up engine need good spark and fuel.if engine flooding could have weak spark due to worn out spark plugs and wires.could have vacuum leak or bad engine coolant temperature sensor.dirty air filter.dirty fuel injectors.

Dec 20, 2012 | Cars & Trucks

1 Answer

98 RAM 1500 WONT START


Replace the coolant sensor NOW!? Its causing a flooding condition as evidenced by wet plugs that short out when flooded. Blip the starter and see if raw fuel is blown out as another indication of a flooded condition. In cases of flooded engines, holding the gas pedal to the floor shuts off the injectors during starting to clear out the cylinders.

The brass replacement sensor will cure flooding and many other engine/transmission issues.

Nov 18, 2011 | Cars & Trucks

1 Answer

Car floods and starts hard when first started


ENGINE FLOODING COULD BE CAUSED BY FAULTY FUEL PRESSURE REGULATOR.FAULTY MAP SENSOR, WEAK IGNITION SPARK.DIRTY FUEL INJECTORS LEAKINGSTICKING OPEN. FLOODING OUT ENGINE.CLEAN THE FUEL INJECTORS AND CHANGE AIR FILTER.

May 24, 2011 | 1990 Buick Century

2 Answers

98 camaro will crank but wont start after i let it sit for about 15 minutes and try again it will turn over but it doesnt always do this it only does it every now and then.


You could have a leaking fuel injector that is causing it not to start after it sits for a while the engine cylinder may become flooded with fuel and when you go to start it again it will not crank because the engine is hydrolocked. Check the oil to see if it smells like fuel. also remove the spark plugs to see if they are fuel soaked. If you find one. You'll know that's your problem and you will need to change your injectors

Feb 25, 2010 | Chevrolet Camaro Cars & Trucks

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