Engine not running

This sounds like a classic auto shutdown relay failure but to be sure here is a guide to help check the relay and the relay location is the diagrams below

When you turn the key to the on position without cranking the engine over can you hear the fuel pump run in the tank for 5 seconds?

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

and

https://www.2carpros.com/articles/car-cranks-but-wont-start

Check out the diagrams (Below). Please let us know what you find. We are interested to see what it is.

Nice work, this was the problem for my car I got relay at autozone and installed it , the engine started right up, thank you so much.

I also put in new plugs and wires besides the new feul pump and two strainers. My fuel filter is in the tank and flushed clean. She started vrrm vrrm but just quit not a smother out just quit. Please help Im a single ****** with four kids and I need my jeep so bad. I just fix things when they tear up with advise im not a mechanic. However right now im wishing i was. My babies would very much appreciate any advise how to get her running. I also put in 20 in gas . thanks Lena Kay

Will it restart now?

WILL IT TURN OVER?

DOES IT SPIT AND SPUTTER AS IF IT WANTS TO "BUST OFF"?

DOES IT DO ABSOLUTELY NOTHING?

WE TRY NOT TO TRICK

ALWAYS TRY TO TREAT!

ARE YOU CAPABLE OF MINOR TESTING?

THE MEDIC

PS

THE FELLER ABOVE ME WANTS A REAL JEEP

........BUT HE'S SCARED!

THE MEDIC

when I bought the jeep it started right away and now I have to turn it on wait for the fuel pump to run shut it off press the gas and than it will start. I know it is not the fuel pump because I had that checked. I think it might be the fuel pump or the injectors but I do not know what one to go after first

Have the fuel pressure checked and make sure it is up to spec. If you have an external fuel filter you should replace it before getting it tested. You can borrow the test tool to do this at Advance Auto or Auto Zone.

I have a 1997 Jeep Grand Cherokee.Also the battery keeps going dead while sitting. The Jeep was working fine then after work the battery was dead and would not start even with a boost. I did get it going with a boost, with the key on and crossing the solenoid. John

Check the starter relay, transmission range switch and ignition switch.

Also, get a battery drain test.

Thank you very much.

My engine will crank but there is no spark. I have replaced the ignition coil, distributor, cap, rotor, plugs, crank sensor and cam sensor. I have tested the fuel pressure, asd relay, starter, battery, alternator, all the wires and fuses, and all the relays. The ecm was replaced in Sept of 2012 so that should not be the problem. I am at a complete loss as to what the problem could be.

Step one is to determine if the automatic shutdown (ASD) relay is turning on. Measure the voltage on the feed wire to the ignition coil or any injector. You should see 12 volts there for just one second after turning on the ignition switch. What's important is if it comes back during cranking. If it doesn't, we have to look at the cam and crank sensors.

Coil has no spark I checked asd relay and fuse under hood both are good but no power to coil traced wires back from plug for coil no burn or cuts on wires other gray and white wire go to computer brain do you think there could be a problem besides brain board bad

What are you doing when checking for 12 volts to the ignition coil? Do you hear the hum of the fuel pump for one second when you turn the ignition switch on?

my 97 did the same thing .move the three plugs around on the pcm behind the over flow container . its screwed to the fire wall . move those plugs around and see if it starts . if it does you may need to read up on some fixes to correct it because it will only get worse . i replaced mine from autozone instead of messing around with it for 250.00 and it has been fine ever since . its been 3 years since i replaced it with no hiccups . hope this helps

after jump starting it dies right out but will start again and die out at times it will start up after jump and run fine . It will start with no jump for the rest of the day,unless sitting for hours, then needs jump will start and die out but eventually will stay started. The battery is new (couple of months).Sometimes while driving the rpms will drop suddenly from 2k to1k but go back up again quickly .I don't know if one thing has anything to do with other but when jump starting and it dies right out the rpms drop the same way only to zero.

Why are you jump starting it in the first place? Have the battery charged and tested first. Once you have a good battery, see if it will stay running and if it does, test the charging system.

I have a 1995 jeep grand Cherokee it starts fine but while you are driving it goes dead out of the blue there seems to be no reason for it, and it usually starts right back up sometimes it takes a while. it also backfires sometimes when it is in a stalled state and trying to start it. no error codes according to my mechanic. he says it can't be fixed is that true would you take it to a dealership or what thanks Jeff

Have the fuel pressure checked to rule out a failing fuel pump-start here

youll need to check the fuel pressure.u say it starts right up but stalls.u need to know what the pump pressure is when it stalls.

My car won't start at all. One day while on the Interstate my car just suddenly stopped. It happened once before but all I did was turn it off and turn it back on and it worked. This time its not the case. Looked online for some of the same problems and found it could be the CrankShaft Sensor so I had it replaced and the car still won't turn on. Lights and everything is working but the engine won't turn over. I was told that my battery had been drained so i thought that could be problem so we tried jump starting it at 18.00 volts. Any ideas of what could be the problem?

check battery for condition andhave tested at autoparts store. they do it for free.if battery is good check fuses an drelay underhood for starter. it can be neutral safety switch as well . also befor removing battery have soemone help an dit the body of starter with hammer. if engine turns over tehn you probably have a bad starter. then scan for codes and check fuelpressure ,car doesn't need to start for that.

It was running and stalled out now it just cranks and no start. my gauges are not registering properly. I have no check engine light. I've replaced distributor, rotor, spark plugs, wires, crankshaft sensor. my fuel pump also runs after I shut the vehicle off continuously for awhile. I need help

Hello,

This could be a problem with your vehicle's Auto Shut Down[ASD] relay, which is located in the Power Distribution Center in your vehicle's engine compartment. In the diagrams down below I have included a description of the circuit, location of the ASD relay, a guide on how to test the ASD relay, and a guide on how to remove and install the ASD relay for your vehicle. Please go through these guides and get back to us with what you find out. You will need to use a Digital Multi-meter[DMM] to use these guides, so here is a link to a guide below explaining how it's done:

https://www.2carpros.com/articles/how-to-use-a-voltmeter

Happy Holidays.

Thanks,
Alex
2CarPros

Engine has a crank no start, no spark, scanner give a cam sensor code Jeep has a pick up no cam sensor, only crank sensor. would that be my problem have power going to plug?

Hello and welcome to 2CarPros.

I've looked up your Jeep on AllData and AllData shows that there actually is a camshaft position sensor built in to the distributor. I'm attaching information on how to test the sensor as well as how to remove and install it. Please let us know what you find we'll go from there. Also, if this doesn't solve the problem for you, then please post the exact code number and, if possible, your VIN number so I can make sure that I'm looking at the right Jeep.

Thanks, change cam sensor. Still have no start getting idle air control code 505 check power plug getting all most 12 volts all other sensor 5 volts? scanner say voltage 2 high. Changed idle air. And cam sensor.

Did you go through the diagnostic process that I posted? Just because the scanner shows a code indicating a problem with the cam sensor circuit doesn't mean that the sensor is bad. It could be a wiring issue or anything else on the circuit. Hence the diagnostic process goes through checking all of it. Same thing with the IAC circuit. Getting 12v there instead of 5 tells me that there's either a short in the lead where it is contacting another wire that carries 12v or there's some sort of issue with the PCM.

Either way you have to go through the diagnostic processes.