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Enging crank but want start why?

I spray some starting fluid in the instake it still want start what all i need to check? how do i check for spark and how do i check fuel pressure?

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  • 8 Answers

Check fuel filter and fuel pump

Posted on Mar 23, 2019

  • Joe Russell Mar 23, 2019

    i got the vehicle started i for got to connect the crank sensor wire backup after i replace the AC compressor.

  • Joe Russell Mar 23, 2019

    i got the vehicle started i for got to connect the crank sensor wire backup after i replace the AC compressor.

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What car? What year? What engine? What fault codes?

Posted on Mar 22, 2019

  • Joe Russell Mar 23, 2019

    1999 Lincoln Navigator 5.4L i got it started i had left the crank sensor wire off.

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6ya6ya
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SOURCE:

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Posted on Jan 02, 2017

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SOURCE: buick lesabre nightmare

Need to get a scan tool and look at the data stream while it is running for alot more info.Also any trouble codes.Sounds like initially,the engine isn't getting any fuel.I would have a pressure gauge connected to the fuel rail on the engine,so i could monitor the fuel pressure while all this is going on.Items to look at on the data stream would be timing,what timing is the PCM commanding for the engine.Also,have you checked for continuos power feed to the coils during this no start condition,and fire at the plugs while cranking.You could possibly still have spark,but maybe it is extremely weak?I have seen bad ignition switches cause weird problems before too.Many things power up through the ignition switch,just a thought.Have also seen bad PCM's cause strange problems..38 volts is a little on the low side for GM.Usually see those at,at least .50 and up,and rise steadily while pressing the throttle,up to just under 5.0 volts.Potentiometer with 5 volt supply.Vacuum leak can be checked with engine running at a steady idle speed,spray brake cleaner all around the intake manifold and listen for engine speed change.

Posted on Jul 31, 2008

  • 255 Answers

SOURCE: buick lesabre no start

Hi you have replaced allmost everything ,(try fuel pump relay)

Posted on Aug 18, 2008

picatudo
  • 239 Answers

SOURCE: 1982 spider will not start no fuel injection

go on the trunk ,lift the carpet on the left side there is the access to the little fuel pump that goes inside the tank replace it

Posted on Dec 31, 2008

  • 2 Answers

SOURCE: 2000 gmc jimmy wont start

I also had this problem with mine. There's a main power cable that runs to the battery. The bolt was completely corroded, so there was no connection = no power to start the truck. Check that, it'll cost ya less than 5 bucks to fix.

Posted on Jan 16, 2009

  • 3600 Answers

SOURCE: 2001 jeep cherokee sport 6 cyl 4 wdr cranks want start

If the data link is not talking to the computer check your ground at the computer and at the data link connector to see if the computer is even alive ground pin 3 on DLC with the key off then turn key to the run position if it flashes the check engine codes record them, if no engine light, does the engine light come on when you turn the key on then go off? if not, check fuses if not check power for pin on computer, if it has power you have a bad computer. But TEST THE GROUNDS IT IS THE BIGGEST FAILURE For these rigs or any manufacture. check that you have power also at the DLC too. if not you need a digital ohm meter and a subscription to http:///.www.alldatadiy.com and start reading the campaigns on that vechile for computer and trouble tree for dead DLC and computer. I don't have that subscription or I could tell you more where to look, if you need anymore help let me know. Also if the crank sensor could cause it not to run the fuel pump but so can the cam sensor. You need to find out if the computer gets it's pulse for the pump at the computer if it does then you need to test them both. There are three wires a ground a colored power wire and a wire to go to the computer you can test these sensors with a meter to see if there is a pulse to each. sometimes the fuel pump gets it's signal from the coil pack so it's important to have the subscription, you can do a search for each item and test them as needed and has a wiring diagram.

Posted on Jul 27, 2009

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If a starter is able to crank the engine but it won't start you usually have either an electrical or fuel problem. It's also remotely possibly that it's compression.

If an engine has proper fuel, spark and compression, it will start when you crank it. So your challange is to find out which part isn't working right. Start with fuel. Spray a little starting fluid into the air intake while someone tries to start the engine. If it starts briefly when you're spraying starting fluid, you probably have a fuel delivery problem. That could be injectors, fuel pump, fuel filter, relay, fuse... who knows what until you check into it.

If it doesn't start with starting fluid, check the spark. Pull a plug wire and attach it to a spare sparkplug and set the plug on a solid metal part of the engine. Have a helper crank the engine while you watch the plug. If you have a good spark, it might just be out of timing.

In any case, you'll need to start isolating the problem. Find out which part isn't working then you'll know what to replace/repair.

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Hi there,


Various reasons might be responsible for the problem you are experiencing;




If a starter is able to crank the engine but it won't start you usually have either an electrical or fuel problem. It's also remotely possibly that it's compression.



If an engine has proper fuel, spark and compression, it will start when you crank it. So your challange is to find out which part isn't working right. Start with fuel. Spray a little starting fluid into the air intake while someone tries to start the engine. If it starts briefly when you're spraying starting fluid, you probably have a fuel delivery problem. That could be injectors, fuel pump, fuel filter, relay, fuse... who knows what until you check into it.





If it doesn't start with starting fluid, check the spark. Pull a plug wire and attach it to a spare sparkplug and set the plug on a solid metal part of the engine. Have a helper crank the engine while you watch the plug. If you have a good spark, it might just be out of timing.



In any case, you'll need to start isolating the problem. Find out which part isn't working then you'll know what to replace/repair.




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