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Most common nonstarter issues. Motor cranks great. You can hear fuel pump when turn key to on position. Where to start diagnosing

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  • Cars & Trucks Expert
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Make certain the anti thrift is not on...unlock using key fob. allow 10 minutes time a then try and start. Go from there....hope you have luck. Let me know what happens after this.

Posted on Feb 22, 2019

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  • Cars & Trucks Master
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What , make , model an year vehicle ? Anti-theft system light lit ? Check engine codes ?

Posted on Feb 22, 2019

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  • Contributor
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Is fuel getting past the fuel filter? Is there spark at the plugs?

Posted on Feb 22, 2019

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  • Master
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Determine spark or fuel, give it a shot of starter fluid

Posted on Feb 22, 2019

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6ya6ya

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Posted on Jan 02, 2017

chuck943

Chuck Martin

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SOURCE: 1999 Continental will not start

Does anti-theft light come on for a sec then turn off when you turn on the key or does it flash with key on?
You said that CEL turns off while cranking,does it come back on if you continue to crank after about 8-10 seconds of cranking?
If it does not then your PCM is not seeing a signal from the crankshaft postion sensor.You can try wiggling the harness at the crankshaft postion sensor and see if it will start.

Posted on Jan 31, 2009

Anonymous

  • 1 Answer

SOURCE: 1993 Jeep Grand Cherokee Fuel Pump?

Between 100-140 thousand miles the fuel pumps go out on the 1993 cherokee. Its a fact. All parts are manufactured with the knowledge that it will last for a specific period of time then it dies. The relay switch was helpful for a brief while because there was still some juice in that pump, but now that it is gone it is gone.

If you don't see the fuse box under the dash in the driver leg area or beneath the radio check for a covered box under the hood. There should be a fuse spec guide on the lid of the box that tells you where specific wattage should go and for what purpose. But, your fuel pump problem will not be solved by a new fuse.

Posted on May 25, 2009

Anonymous

  • 1 Answer

SOURCE: 1999 GMC Suburban Wont Turn Over

It sounds like you have a security problem, I had the same thing it would fire and run for half of a second and then that was it if anything at all. Had the security system rebooted, now it starts and runs fine.

Posted on Jun 30, 2009

Efstathios Govas

  • 285 Answers

SOURCE: 01 dodge caravan new starter battery full turn key

try lookin at the wiring harness under the battery tray,seen them corrode there alot

Posted on Sep 05, 2009

ocoot

  • 44 Answers

SOURCE: my 2001 dodge ram 1500 will crank but not get fuel

could be fuel filter

Posted on Nov 10, 2009

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1 Answer

2005 dodge neon no crank no start gages not lighting up when key on do here fuel pump headlights work horn works no power to small wire nonstarter when cranking


Something wrong with your ignition switch if no warning lights or gauges turn on with key in the ON position. But if you hear the fuel pump turn on with key on, that portion is correct. Are you sure you have full power going to the switch? Often there are two power sources for the ignition. By that, I mean 2 hot wires going to the switch.

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Why wont my 1998 gmc 3500 sierra turn over


Check for fuel by pouring small amount of clean gas down throttle body and crank engine over. if it starts and runs just for a few seconds you have a fuel delivery problem. If it still does not run after several attempts check for spark at spark plugs. that should get diagnosis started

Aug 03, 2014 | 1998 GMC Sierra

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Vehicle would not start. After having it towed home it started right up


didnt give much to go by but------ if it turned over and didnt start check fuel pump -fuel filter -egr valve 3 most common nonstart than start again problem --also check for power to plugs bad wire or connection could cause nonstart ---if it didnt turn over check connections on battery or starter

Sep 22, 2013 | 1995 Mitsubishi Eclipse

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Jeep 06 libary will not start ,starter good and battary good what the probable


Do you mean it cranks but won't start?
Check for spark at a spark plug wire. If you have spark, it's probably not the ignition, but a fuel issue. Do you hear the pump come on briefly when key is turned to on? You may need to stand by the gas tank with the cap off, while someone turns the key on. The pump should hum or whirr for about 2 seconds to prime the fuel system. Then it will shut off until car is cranked over. If the pump and the ignition is working, check fuel pressure.
If you had no spark, it could be the coil, or crank position sensor, or...well, you would have to diagnose the ignition system.
If the problem is not cranking over, check all connections at starter and battery for a clean tight connection. Check for power at the starter solenoid when key is held in crank position. If power there, the solenoid must be bad. If no power the circuit from ignition switch to the starter solenoid has a problem ( like the starter relay or the neutral safety switch).
Good luck.

May 26, 2012 | 2005 Jeep Liberty

1 Answer

Sometimes it will start up fine and other times it loses spark completely and wont start. We had to have it towed home once because it wouldn't start then about 6 hours later it started up fine. Our...


How are you diagnosing it looses spark ?
Could be an issue with the Fuel Pump relay or the PATS system

If you get a crank no start, turn the key to the off position. Make sure you can hear the fuel pump run ( in the fuel tank, by the fuel door on the box ) by rolling down the window. Turn the key from off to run and wait to hear the fuel pump cycle. At the same time the theft light in the cluster should go out. Do both of those happen correctly ?

Try swapping the Trailer Tow adapter Reverse relay with the fuel pump relay.
My '01 had cases of crank no start, which I attributed to not holding the speed pass away from the key correctly ( causing PATS to not be completed ) , and at ~ 34K miles the fuel pump relay went out.

Nov 22, 2010 | 2001 Ford F150 Styleside SuperCrew

2 Answers

I know a fuel pump can work one day but not 7 hours later, however, the car turns, but does not start. what procedure would i use to identify it as the fuel pump. 2000 seville. Could a bad fuel filter...


The first thing you can do is listen and see if you can hear the fuel pump when when you turn the key to the run position. The pump should run for 3-5 seconds. If you can't hear it run than there will be a fuel pressure test port located on the fuel rail (the part that feeds fuel to the injectors). Remove the black cap and press in the valve with a small screwdriver making sure you are clear of it as it can shoot out gas a long way if there is pressure in the system.

If you get a dribble than the next thing to check is for power to the fuel pump. You'll need to get under the car and find the wiring harness that goes to the fuel pump. Check for power on the larger grey wire. It helps to have somebody assist you. There will be power for 3-5 seconds when the key is turned to the run position and any time the key is in the crank position. If there is power than you basically just diagnosed a bad fuel pump.

Another thing you can do is spray some carb spray into the throttle while somebody cranks over the engine. If the car starts than you know you have a fuel issue. If it does not start than you might have a spark issue.

A fuel plugged filter can cause driveability problems but will rarely if ever cause the vehicle not to start.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Nov 12, 2010 | 2000 Cadillac Seville

2 Answers

What typically is needed to to be done if a 2001 supercrew has had air bags deployed and wont start after that. The switch in the right kicker panel for the fuel pump does not appear to have been tripped....


Good info on the PATS / theft light. Looks to be the PATS / HEC operation is functioning correctly

The Fuel inertia switch only cuts power to the fuel pump, so if tripped, the truck would have a crank no start issue. Do you have a crank no start, or no crank issue.

To reset, just press down on it. To check if the switch is tripped, check for power at the connector to the fuel inertia switch

Engine compartment fuse # 10 ( 20A ) to the fuel pump relay -> Dark Green w/ yellow stripe wire to the fuel inertia switch -> pink w/ black stripe wire to the fuel pump module.
Check the pink w/ black stripe wire to ground with a meter for power, with the key in the run position.

If you turn the key from off to run ( do not start ) you should hear the fuel pump cycle ( hum, then turn off ).

Could be an issue with the fuel pump relay ( my '01 had a crank no start at ~ 35K miles, bad fuel pump relay ). I proved this out ( after a stupid ID10T error in my diagnoses process ) by jumpering the normally open contacts in the fuel pump relay socket, and then installing the trailer tow reverse circuit relay into the fuel pump relay socket ( same full size Ford Relay ).

Jumpering the fuel pump relay in the relay socket ( remove relay and use jumper wire ), red line
sscullys_16.jpg

If you have a no crank issue, could be the DTR ( Digital Transmission Range ) sensor on the driver's side of the trans is out of alignment.

Check the start motor relay ( on the firewall on the passenger side ) for power on the Tan w/ Red stripe wire when the key is in the start position ( this is from the ignition switch through the DTR when in park or neutral to the starter motor relay ).

You can test another route, turn the key to the run position, and apply power to the Tan w/ Red stripe wire on the starter motor relay in the engine compartment on the firewall. BE CAREFUL, the motor should turn over, keep clear of moving parts.

Post back a comment to this problem with the results of the testing.

Thanks

Nov 03, 2010 | 2001 Ford F150 Styleside SuperCrew

1 Answer

2002 blazer crank but wont start


2 things that you have to check on no starts every time. Spark at spark plug and fuel. Turn key to run position and listen at gas tank for fuel pump to run you should hear a whining noise. This will only happen for 3 to 4 seconds then it will shut off until engine starts. You can turn key off then to run every 3 to 4 to listen for fuel pump. You may hear the relay click off in engine area even if pump does not run. Fuel pump failure is pretty common. If pump is running pull spark plug out or put a spare plug into spark plug wire and have someone crank engine set plug on engine and watch for spark. This will give you a starting point. Hope it helps.

Mar 30, 2010 | 2002 Chevrolet Blazer

2 Answers

My 1995 grand jeep cherokee won't start but It turns over an a battery jump didn't work. I believe I'ts an electical problem, maybe related to the alarm because the starter, engine and battery seem fine..?...


Alarms usually won't allow the engine to crank. If it is the alarm, arming then disarming it usually gets them to start. However, you probably aren't that lucky. Probably the most common problem for Cherokees with ignition issues is a crank sensor or a fuel pump. Listen to hear if the fuel pump runs when you turn the key to the run position (it will only run for 2 seconds, so have someone else turn the key while you listen at the gas filler neck)

Nov 19, 2009 | 1995 Jeep Grand Cherokee

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86 Cherolet Astro van ran out of gas while driving, and when i refueled with about a gallon it still wouldnt start. I tried adding more gas by filling with another gal. and same result. When i try to start...


by missing gas you pick up all the dirt in the gas tank if the gas pump dont start there nothing else then dirt in the gas pump if it was running good before so there no other reason then gas pump you try something get somebody to crank the truck at the same time go underneat the truck with a hammer hit the gas tank many time while the engine crank with the shot of hammer the vibration activate the gas pump check it out let me no pierre

Jul 31, 2008 | 2000 Chevrolet Astro

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