Question about Hyundai Accent

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96 accent has not been starting ( no spark ) for 6 months off and on. cranks fine, can hear fuel pump, checked regulator...all great.Will start again if it sits for a few minutes ( not flooding ) This time, will not start although tried often ( battery/spark plugs fine ). 0 other issues at all with this vehicle.

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Fuel pump relay

Posted on Jun 24, 2009

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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

May 21, 2010 | 1998 Chevrolet K3500

1 Answer

Ok i have a 1999 hyundai accent wont start changed fuel pump and it started ran very bad very! turned it off wouldnt start back up again checked spark plugs no spark and no power going to fuel pump we are...


Changing the pump doesn't affect the spark so lets start a that the beginning?? Why was the pump replaced and was it running fine before changing the pump? Also plugs could be fouled as well but if it was working fine before the fuel pump it will be fine afterwards if getting gas and the fuel pump was the problem., Also how did you verify no spark??

Oct 10, 2009 | 1999 Hyundai Accent

1 Answer

'96 Chevy 1500 changed fuel pump now wnon't start


You will have to determine if it is fuel you do not have or a no spark problem.

When the key is turned to run position after it has been off for 10 seconds do you hear a prime cycle (fuel pump whirr noise ) at the gas tank for about 2 seconds?
If you DO hear this you most likely have fuel pressure.
If you do NOT hear this and have just changed the fuel pump with a known working good pump....it may be the fuel relay.
And remember...new pumps can be bad.

If you DO hear the whirr........perhaps you do not have spark at the plugs.
Do you have a spare spark plug?
Disconnect one of the plug wires and insert the spark plug you now have.....make sure the plug body is touching metal....(grounded ) and crank the engine....we want to see a spark jumping across the spark plug gap.
No spark?
Then check for these defective parts and chances are ........50% Ignition module.......30% crank pick up........10% coil........10% other (connections.....computer......anti theft....etc )

Sep 17, 2009 | 1996 Chevrolet Lumina Mini

5 Answers

1996 Olds Aurora will not start.


It could be many things, heres a list of basics you could check.
  1. wore or lose drive belt
  2. bad alternator
  3. bad battery
  4. clogged fuel filter
  5. bad fuel pump
  6. clogged fuel injectors
  7. faulty spark plugs or spark plug wires
  8. check the timing
  9. faulty ignition coil
  10. clogged air filter
  11. battery terminal connections loose or corroded.

Mar 06, 2009 | 1996 Oldsmobile Aurora

1 Answer

1999 Chevy S10 cranks but wont start


A very common problem on the 99 S10 is a leaky fuel pressure regulator in the intake plenum.What happens is when the truck sits for a few hours or more the regulator leaks all of the fuel in the fuel injection system into the intake air plenum. This does 2 things, 1 it has no fuel pressure when starting and 2 it floods the air intake with raw fuel. Sometimes if you turn the key on wait 3 seconds then turn key off then turn key back on and just turn key to crank starter for a split second and wait 3 seconds.do this 3 times to repressurize fuel system then crank to start(you will hear fuel pump buzz each time you do this.also you may have leaky fuel injectors. Try to crank engine with the gas pedel to the floor. This will tell the computer to stop spraying fuel trhough the injectors and it will start. Joe ASE Master Tech

Mar 04, 2009 | 1999 Chevrolet S-10 Pickup

1 Answer

I have a 93 altima that will crank but will not start...about a couple months ago i went to my work and shut off my car. it was running fine when i shut it off.. when i came back out and started my car...


this year model is notorious for fuel related probs...check the remainder of the fuel system, injectors, and the fuel pressure regulator also verify that the fuel pump is actually running and getting the correct amount of power to the pump itself..... it may not be bad just not getting enough power

Jan 24, 2009 | 1993 Nissan Altima

1 Answer

96 STARTING PROBLEMS


The 1st thing to do is check the fuel pressure when it won't start, the cranking circuit may not be turning on the fuel pump, the run and crank are 2 separate circuits in all electric fuel pumps, so the ignition switch could be an issue here, but check the pressure while cranking during a no start, then let me know what you find.

Oct 03, 2008 | 1996 Hyundai Accent

2 Answers

1997 Chev Cavalier hard starting


it sounds like the check valve in the fuel pump is letting the fuel bleed back into the tank

Sep 23, 2008 | 1997 Chevrolet Cavalier

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