Question about 1998 Jeep Cherokee

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I replaced my fuel pump and the pump still doesn't run. car cranks but dont start. where is the relay for the fuel pump

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The fuel pump relay should be under the hood in the relay center. There is a black box that contains you relays.
Have you check for fuel pressure? Can you hear your pump run with key in on position (do not start) just turn key to on and see if you can hear the pump.
You can use a voltmeter and test the power to the pump also to the relay as well.

If you find you do have gas, than you likely don't have spark which could be the crankshaft position sensor.

Some of these vehicles have a fuel pump safety shut off valve on the passenger side kick panel that accidently get shut off as well.

Posted on Aug 07, 2010

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Engine cranks good but will not start.


did you check all fuses with a meter ?
you are new to jeep repairs.... here are some facts.
jeeps have ASD relay.
when car dont start, see what the ASD relay is doing
do not throw parts, you picked the most hard and expensive thing to change on a lark. why do that?
the fuel pressure gauge is $20 and takes 5min to see that fuel pressure is good. not pulling the tank and pump. for fun.
why do that.? (seen 100000 times on forums, this....)
here is mr. ASD, and what to check.
the ASD can cut fuel and spark for many causes. x8

http://www.fixkick.com/Jeeps/ASD.html

automatic shut down relay.

does the relay close cranking? y/n ?
if yes, does it then drop out cranking, y/n?

those are the first 2 tests on all jeeps 1993 to now.

each check discovers what is wrong
so does attaching any OBD2 scan tool and cranking
for 5 long seconds and behold, DTC errors.
got DTC errors cranking/??

BINGO x10.

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My 1998 dodge neon wont start cranks but doesn't


You say the relays are good - - are you getting power out of the ASD and fuel pump relays ?

Jun 11, 2013 | Cars & Trucks

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2004 hyundai santa fe cranks but doesn't start


Test the relay you have,wouldn't look for
a new one- till that one fails a test


Doubt one will fail in your lifetime

Check if there are others the same in the
vehicle

Did you not have the pump running before
putting up the tank?

Many ways to test a fuel pump

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Fuel pump diagnosis


vehicle wont crank? you have other issues. if it cranks but wont start then we may be looking at a fuel pump/relay/pressure regulator issue. the easiest way to test this is to simply buy a new relay( they are usually pretty cheap) or find a simular relay in your junction box or elsewhere, such as an a/c relay and switch it out typically if it fits it will suffice. how ever when they go out they usually go out completely. i would start by testing your fuel filter. remove it and try to blow throw it. if its good you should easily be able to pass air through it. if you cant or it seems restricted then replace it. if the studdering sounds continue after checking and replacing the filter and relay (both cheap parts, i dont know the year make and model but you should be able to replace both for around 30-40bucks) then its definitely your fuel pump and they typicaly run upwards of 100-400 bucks. and are a pain in the **** to replace as they are in the tank. just a side not some vehicle dont have and in line fuel filter, they have a "sock" on the pick up in the tank (jeep cherokee for example) other cars are well known for thier pumps going out around a certain mileage. let me know the year make and model and i can help walk you through the problem.

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Car trys to crank but want


How about the fuel pump relay? or possibly the ASD relay. need to make sure you are getting voltage to the fuel pump when the key is on, the pump will run only for a few seconds when you turn the key to start to prime the system. If you dont hear the pump prime, check the aforementioned relays and associated fuses.

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