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I been turning the engine over a lots but i don't smell any fuel shouldn't the engine be flooded by now? there is no spark at the spark plugs.

2004 GMC Envoy SLT 4.2L engine will turn over but want start i been turning the engine over a lots but i don't smell any gas if the fuel injector are working the engine should be flooded there is no spark at the spark plugs what operate the injectors?

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  • GMC Master
  • 40,809 Answers

Something is stopping the fuel and spark
items that prevent those things are
broken timing belt /chain
problem cam/crank position sensors
immobilizer problem
ECM problem

Posted on Dec 10, 2016

  • Joe Russell Dec 10, 2016

    what is a immobilizer and where is it located?

  • Bill Boyd Dec 10, 2016

    the immobilizer is the anti theft system in the vehicle that prevents unauthorized starting unless the correct key pad is used

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2 Answers

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

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My Polo Classic 2004 1.6 is misfiring. There is a smell of petrol and the car is not accelerating rapidly.


Check carefully for fuel leak. If it starts well and then gets worse as it warms up, check coolant temp sensor. May be it just smells like fuel because it misses so badly fuel is not being burnt and floods tailpipe. Check spark at plugs with timing light to avoid sparks where fuel may be present. Weak or irratic spark can be coil/module, crank/cam sensor. Remove plugs to see what they look like or which is not firing.

Feb 03, 2015 | Cars & Trucks

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Why is my 2003 Jeep Liberty- Starter turning, but eng won't start (intermittent problem)?


you didnt stated the symptoms correctly

it either cranks or it does not.
that means the starter ACTUALLY turns the cranks shaft over
robustly.
the crank shaft damper pulley is the clue to this , it turns or not.
if it always turns this is a :
cranks ok but wont start.
so, that means tune up the engine,
1: low battery voltage (slow cranks)
2: never tuned up this decade?.
3: bad fuel.
4: weak spark at any of the spark plugs, sure all must be good.
5: flooding, (wet spark tips)
6: fuel starvation.
7: any of 50 other engine mech. issues,(burned valves, is 1)

Sep 02, 2014 | 2003 Jeep Liberty

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

Spark plugs flooding


lets back up here fellas. a lot of crazy rabbit holes we have gone down. spark plugs dont get "flooded" with fuel, they do however show signs of being wet due to an oil leak up the threads. is this what is the problem, do you smell fuel and oil when you remove them?

Apr 05, 2014 | 2005 Ford Freestyle

1 Answer

Suzuki Aerio 2004, will crank over floods out tho. Changed Plugs and Boots. New baterry too. Can smell gas @ Tail pipe. Wants to fire-but just won't catch. Where do I start looking for the answers.?


what engine? 2.3 or 2.5L?
all cylinders flooding??? spark tips on ALL dripping in gas?
check spark at all spark plugs ( ALL not just ONE)
if spark is good.
this engine is chain cam, so it makes huge noise before death.
did it?, nah
ok, so connect any $9 scan tool, and scan it. (barrow /rent.?)

you crank it for 5 seconds, not less.
and as you crank the scan tool RPM shows 250 to300 rpm and fails to start, the RPM on the tool shows you that the crank sensor is working
now release the key and do not turn off
look for DTC errors. got P0340,355? or any other DTC
that decodes to bad CMP or CKP/
yes, BINGO, the scan tool told you why spark is dead, or way off
timing,

the PCM will report Cmp or CKP errors even 1 in 6 pulses.
the PCM runs monitors against these 2 full time. and will see it fail.
and report, it, let it tell why spark is bad.
say spark is good. and still floods.
1: engine compresssion over 150psi? W.O.T?
2: flooding , i pull the fuel pump relay and crank now.
starts and runs for 3 -5 seconds, yes, that is the flood clearing
so i then try test fuel, runs perfect now (no fuel pump) ???
runs for 3 second, each test fuel usage. well good motor, good spark.
what more do you want? sure to run
so you have either insane high fuel pressure. or injectors leaking
can and does happen.
the tests are all in the FSM under injector and pump testing.
i check fuel pressure first. as its a mandatory thing.....
to factory spec. for unsaid engine.
then i do a injector leak down and balance check.
ask if you get this far.....????


Jan 24, 2014 | 2004 Suzuki Aerio

2 Answers

Flooded engine


If your car is fuel injected (no carb) then while cranking, try holding the gas pedal to the floor - this should cut off fuel supply to the injectors. If you need to crank multiple times, don't turn the key to the off position - turn back to ACC.



Scott
ASE Certified Automotive Technician
ASE Certified MED/HVY Truck Technician

Jan 23, 2013 | 2004 Dodge Dakota

1 Answer

Car not starting, oil in spark plugs. changed valve cover gasket and spark plug seals. still cant get the car to start. starter is turning engine turns over and getting spark. i can smell fuel coming from...


If you smell fuel in the exhaust the vehicle is flooding or there is no spark. If it is a carb engine, make sure that the choke is in and hold you foot flat on the pedal while trying to start, this will clear any flooding.

Apr 01, 2011 | 1996 Honda Accord

1 Answer

2002 chrysler van wont start changed battery dry gasdo to cold temp cranks but wont start smell gas


SMELL LIKE FLOODING BUT CHECK AROUND FOR FUEL LEAKS UNDER THE HOOD AROUND ENGINE COMPARTMENT WHERE FUEL LINES ARE AND CHECK UNDER THE VECHICLE FROM FRONT TO THE BACK WHERE FUEL LINES GOES TO FUEL TANK.LOOK FOR GAS DRIPPING.BEST TO SCAN VECHICLE WITH A SCANNER.MANY THINGS WILL KEEP IT FROM CRANKING UP.CHECK IGNITION FUSE MAKE SURE COIL GETTING POWER.IF ALL IS GOOD YOU REPLACED SPARK PLUGS AND WIRES HAVE VECHICLE THAT WAY YOU WONT SPEND A WHOLE LOT OF MONEY BUYING A LOT OF NEW PARTS.

Jan 13, 2011 | Chrysler Town & Country Cars & Trucks

2 Answers

My 2004 mazada rx8 won't start, smells like its flooding out! turns over good. Pulled in one night -no problem. Went to get in and go next day and wouldn't start!


HI check your air filter make sure is clean, replace spark plugs if fault whit fuel ,if thats the case also replace your oil and filter

Sep 23, 2009 | 2004 Mazda RX-8

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