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Barry Bennett Posted on Dec 07, 2013
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Engine flooding car would not start, good spark, no fuel at engine, traced power back to fuel pump connection but not working, removed pump found broken black wire to connector repaired and pump works, started engine and it run very rich, stopped engine checked connections under bonnet tried to start engine again good spark but flooding with fuel checked return fuel hose clear and fuel getting back to tank what next

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Robert Lewis

Robert Lewis

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  • Contributor 21 Answers
  • Posted on Dec 07, 2013
Robert Lewis
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Joined: Jun 29, 2008
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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.

5 Related Answers

daveleeyates

  • 65 Answers
  • Posted on Mar 24, 2009

SOURCE: Ford Escort 1998 fuel pump not working.

good old ford lol, try looking at the crank sensor its located at the front of the engine tucked in right hand side of exhaust manifold and gearbox, two pin plug, i have also known these to have no end of faults with the fusebox.
easy to remove, and solder the connections inside they all suffer eventually, if your not to handy with cars i recommend taking to a auto electrician, easy if you know how. Good luck Davelee

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daves944

Dave C

  • 1050 Answers
  • Posted on May 11, 2009

SOURCE: Buick Regal dying

You have a problem in the fuel pump relay circuit for sure then. I'm betting the relay, but it could be that dropping resistor.

Anonymous

  • 6982 Answers
  • Posted on Jun 17, 2009

SOURCE: 1991 camaro RS Fuel pump not working- no power to pump

If the oil pressure switch has two wires on it it may be one that shuts down the pump. I'm not positive but I think it completes a ground circuit, not the hot side though (but may run through a relay.) There should be a pump relay under the hood with a group of other relays. I don't have a wiring diagram for your car but you can get a basic diagram in most inexpensive manuals. They wont usually give you locations but at least you can get an idea of how the system works. There usually is a fuse. If the fuse block is not labeled, use a test light and probe the back of every fuse for power with the key on (takes about ten minutes and faster than trying to find info) change any that are blown. The most likely culprit is a relay, so after testing fuses look for it. (usually on drivers fender or on right side near firewall.) Worst case, trace the power lead all the way through the harness 'till you find where power begins.Testing is important here...I could give you much better info if I was there to do it for you. Most important is to stay "on track" till you find the place where power ends. Don't jump all over the place or you will end up doing an incomplete test.

BRADLEYFRANC

Bradley

  • 105 Answers
  • Posted on Oct 09, 2009

SOURCE: seat ibiza turn over ik, but will not start.

why did you replace the fuel pump if the car was running ok?check if you did not mix up the fuel lines where they connect to the pump.

Anonymous

  • 1 Answer
  • Posted on Jun 19, 2010

SOURCE: cranks but won't start like it has no gas

Sorry to burst your bubble but a 97 jetta no matter what model including the trek I and trek II dont have transponders in the keys that didnt start untile the 2000 jetta's

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Related Questions:

0helpful
1answer

2006 liberty cranks but wont start
gas engine, not diesel.
its probably flooding, ever give it a 60k mile tune up, ever?
we check spark tips for flooding and dry,never do we guess at fuel pumps, ever. (pressure gauge is $20)
tips dry or soaking wet.
we check for spark , no gas engine car runs with no spark
so we check all cylinders for good spark
if spark is good and flooding (new spark plugs) we use
cranking wide open throttle wot. like the operators guide says.
start now? this cuts all injection, this magic PCM trick.

see scotty ,
1: compresson at spec, 2: spark good and timed. and 3: fueling last.

skip the silly ad.
note he says 2, but he ASSUMES compression is good. (oops)
but his tests are fast, and if it fails to start, see #1 above. ask
http://www.youtube.com/watch?v=064Ilsz8Fzg&NR=1&feature=fvwp


Read full answer
Feb 27, 2014 • 2006 Jeep Liberty
0helpful
1answer

1990 supra, cranks, fuel pumps, but does not start
basics, always works. they are.
1: good engine?, (compression over 150psi cranked w.o.t)
2: good spark , got spark to all cylinders?. (a simple test)
3: fueling good. (not too lean, not flooding)???
from 1920 to now, all cars running on gasoline.

i can advice a simple test for each, non are complex. or costly .

if spark is good, and test fuel fails (spray)?
i bet you skipped #1 ,

here is a guy running a gas motor with no fuel in car. period

see?
http://www.youtube.com/watch?feature=player_detailpage&v=HhXwVhYfPm8#t=141s

he is a human carb. here.
just keep eyes away from the induction ports , in case it backfires.
dont 1000 of times by me.

one other tests is to (EFI) is to kill EFI (pump relay pull)
and start car on test fuel.
this helps prove engine was flooded and runs. like above.
also the opr.guide told you to clear floods with
WOT, wide open cranking, this tells tells the ECU to cut fuel 100%
to clear any flood, this works on all cars.

Read full answer
Feb 11, 2014 • 1983 Toyota Celica Supra
1helpful
1answer

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.....????


Read full answer
Jan 24, 2014 • 2004 Suzuki Aerio
0helpful
1answer

Engine won't start when hot
engine failed before pump, or after.. confused i am.

no matter, all gas engines work same. (in the global sense)
got spark?
the EFI cuts fuel if NO SPARK , by design (PCM brain logic programming) it tries hard to make that happen. (fire safety)

the rules for all otto cycle engines, in order.
1: GOOD compression on all cylinders, 150psi or more.
2: good spark on all cylinders. and timing. (its fixed time , year 2007)
3: good fueling,, not lean, not rich or flooding
the tests are easy, do you want to test or guess?

pretend that #1 is ok, many do. but pretend.
do not jump to #3, as no otto cycle engine runs with dead spark.

if flooded and spark is good, using a test spark pull.
use super secret WOT cranking, wide open throttle, this CUTS Fuel
on all cars, to clear a flood. its in the opr, guide that, on all cars.
Read full answer
Jan 21, 2014 • 2007 Toyota Avensis 2.2
0helpful
1answer

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.
Read full answer
May 28, 2013 • 2003 Suzuki Grand Vitara
0helpful
1answer

I have a mitsubishi colt, and it has problems starting in the mornings. It turns over, but wont start, when I eventually get it started its very lumpy, and when I push the accellerator the engine almost...
There is no simple answer, there are to many variables. If you have access to a scan tool, pulling the codes should help. Without them its back to old school hunt and peck method. At this point we need to narrow down the problem. You need to test for spark.
  1. Tag and disconnect the spark plug wires from the spark plugs.
  2. Remove the spark plugs and install the spark plug wires to each spark plug.
  3. Ground (do not hold spark plug) the spark plug; check if spark occurs while engine is being cranked.
Crank the engine for no more than 2 seconds at a time to prevent flooding the engine with gasoline.
If you have spark, You will want to make sure you have fuel injector pulse, along with fuel pressure. If you have spark ..simply spray some starting fluid in through the air filter and hold the gas pedal to the floor and crank it over while spraying. If it fires up, you know it is fuel related( fuel pump, regulator, or ECM if no injector pulse) . If you have no spark then look at ignition coil connection and trace through to the distributor( if equipped ). The crank shaft sensor has a tendency to fail on these as well. This should give you a few things to test and check to start you on your way to narrowing it down. If you have no spark then look at ignition coil connection for power and trace through to the distributor( if equipped ). If it is DIS( no distributor). It may be the Crank sensor or the ECU. The crank shaft sensor has a tendency to fail on these as well.
The ECU uses the signal sent from the Crank sensor to trigger the spark and fuel injectors. ( make certain you have checked all fuses)
Read full answer
Apr 06, 2011 • 2006 Mitsubishi Colt
0helpful
1answer

I have a 2000 hyundai elantra that does not want to start. When starting the engine the car acts like it wants to start then dies. I have fire at the spark plugs, I do hear the fuel pump running, all my...
engine might be flooded remove spark plugs to see if they are wet with fuel pull fuel pump fuse crank eng over with plugs removssed to push fuel from cylinders dry plugs reinstall hold gas pedal to the floor while cranking untill engine starts
Read full answer
Dec 27, 2010 • 2000 Hyundai Elantra
1helpful
1answer

The engine indicator on the dash wont stay lit before the start of the car, the engine turnsover but doesnt start
There is no simple answer, there are to many variables. If you have access to a scan tool, pulling the codes should help. Without them its back to old school hunt and peck method. At this point we need to narrow down the problem. You need to test for spark.
  1. Tag and disconnect the spark plug wires from the spark plugs.
  2. Remove the spark plugs and install the spark plug wires to each spark plug.
  3. Ground (do not hold spark plug) the spark plug; check if spark occurs while engine is being cranked.
Crank the engine for no more than 2 seconds at a time to prevent flooding the engine with gasoline.
If you have spark, You will want to make sure you have fuel injector pulse, along with fuel pressure. If you have spark ..simply spray some starting fluid in through the air filter and hold the gas pedal to the floor and crank it over while spraying. If it fires up, you know it is fuel related( fuel pump, regulator, or ECM if no injector pulse) . If you have no spark then look at ignition coil connection and trace through to the distributor( if equipped ). The crank shaft sensor has a tendency to fail on these as well. This should give you a few things to test and check to start you on your way to narrowing it down. If you have no spark then look at ignition coil connection for power and trace through to the distributor( if equipped ). If it is DIS( no distributor). It may be the Crank sensor or the ECU. The crank shaft sensor has a tendency to fail on these as well.
The ECU uses the signal sent from the Crank sensor to trigger the spark and fuel injectors. ( make certain you have checked all fuses)
Read full answer
Nov 14, 2010 • 2002 Mitsubishi Lancer
0helpful
1answer

My 2003 OZ Rally Mitsubishi Lancer is not starting properly. The engine turns and turns but wont start. especially early in the morning when its colder. later in the day i will start it again and it will...
There is no simple answer, there are to many variables. If you have access to a scan tool, pulling the codes should help. Without them its back to old school hunt and peck method. At this point we need to narrow down the problem. You need to test for spark.
  1. Tag and disconnect the spark plug wires from the spark plugs.
  2. Remove the spark plugs and install the spark plug wires to each spark plug.
  3. Ground (do not hold spark plug) the spark plug; check if spark occurs while engine is being cranked.
Crank the engine for no more than 2 seconds at a time to prevent flooding the engine with gasoline.
If you have spark, You will want to make sure you have fuel injector pulse, along with fuel pressure. If you have spark ..simply spray some starting fluid in through the air filter and hold the gas pedal to the floor and crank it over while spraying. If it fires up, you know it is fuel related( fuel pump, regulator, or ECM if no injector pulse) . If you have no spark then look at ignition coil connection and trace through to the distributor( if equipped ). The crank shaft sensor has a tendency to fail on these as well. This should give you a few things to test and check to start you on your way to narrowing it down. If you have no spark then look at ignition coil connection for power and trace through to the distributor( if equipped ). If it is DIS( no distributor). It may be the Crank sensor or the ECU. The crank shaft sensor has a tendency to fail on these as well.
The ECU uses the signal sent from the Crank sensor to trigger the spark and fuel injectors. ( make certain you have checked all fuses)
Read full answer
Nov 02, 2010 • 2003 Mitsubishi Lancer
0helpful
1answer

Wont start, no spark anywhere
Check the spark, remove the fuse to the fuel pump and remove one of the spark plugs. Connect the plug to its lead and position it well away from the engine against the truck frame (do not hold it) and turn the engine over, check the spark. If no spark it most probably a faulty coil. Check the impedance of the spark plug leads and replace any that are much higher than the rest. My guess is that you have spark but no fuel, What?... OK this is what I think is wrong. Your pump is fine when at position 2 on the ignition switch however when you switch to position three to fire the engine the power to the fuel pump is momentarily disconnected. A leaking fuel pressure regulator or injector would drop the pressure in the fuel line and at the same time flood the engine making it impossible to start. Once you start the engine with ether the ignition is back to position 2 and the pump can make good any loss in pressure but because the intake mix is rich this will cause the engine to run rich too. A good fuel system is capable of delivering 40 - 50PSI of fuel pressure and when switched off up to 90% of this pressure should be maintained for about 5 minutes, if it cannot check out the fuel pressure regulator and injectors. The fuel pipe should be capable of filling a pint pot in about 15 seconds, if it cannot check out the fuel filter is clogged.
Hope the above gives you some pointers
Read full answer
May 21, 2010 • 1998 Chevrolet K3500
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