Question about 2001 Jeep Cherokee

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No fuel pump

I came off a curb the other day and 2 days later the Jeep will not start. I cannot hear the fuel pump run. Could this be a relay or the inertia switch? Where might this switch be loacted? The Cherokee only has 75K on it so I find it hard to believe that the fuel pump is bad.

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  • jasonbridwel Jul 28, 2009

    What are the symptom of a bad Crank Position Sensor? I have checked everything along the way of fuses and I am not getting any spark.


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Though it should not happen, it can happen...First, check to see if you have power at the pump harness. If not, check the pump relay in the power distribution center near the battery, and any attending fuses there and in cabin fuse panel.They can be tested with a test light by probing the back of each end of the fuse itself with a test light without removal. If you are missing a chart, check them takes about ten minutes. Also check auto shutdown relay. Depending upon what you find we may not be finished yet, but this will get you started on testing.

Posted on Jul 27, 2009

  • Richard Scordino Jul 28, 2009

    Connect b and c terminals of cps harness to a digital volt/ohmeter. It should show no connection between them (same reading as if meter was not connected.)


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1988 ford mustang inertia switch locaton

More than not its the ign module in the distributer.. this is the way they fail.. 2. the fuel pump on these cars are a problem too.The fuel pump is in the fuel tank. go to the rear of the car in a quiet area have someone just turn the key to on, not trying to start the engine. if the fuel pump runs it will run for about 1.5 seconds and you should be able to hear it .. it will be a buzzing noise. the relay just turns the pump on for a short time to charge the system then when the engine starts the relay via the computer turns the fuel pump on to supply the injectors. The reset is a cable is in the trunk of the car on the rear right side. it has a plastic tag on it for identification. The problem could be a clogged fuel filter.. mounted just in front of the tank under the car. If the IGN module is out there will be no spark.. check that before you start removing the tank.. I just bought a pump, a filter and an ign module for that car from best prices anywhere. Pump was 1/4 of what autozone wanted for it !!

May 05, 2014 | 1988 Volkswagen Fox

2 Answers

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

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.

Feb 27, 2014 | 2006 Jeep Liberty

1 Answer

So my fuel pump has been making a high pitched noise for a while. Then one day, without warning, I tried to start the car but it wouldn't. It cranked but would not start. I turned the car on (not start)...

I looked at info for 3.1L vinM Buick regal. fuel pressure key on engine off, 40.5--47 psi. Can you check the vin? The fuel pressure specs I have for 3.8L engine are even higher than the 3.1L.
You will get a fuel pump prime, key on engine off. You need to make sure fuel pump runs with engine cranking.
My hearing is no good, I can't hear fuel pump with engine cranking.
Sometimes If fuel pump brushes are bad, the fuel pump may run intermittently. Sometimes you can bang on bottom of gas tank when trying to start and the fuel pump will take off running.

Apr 15, 2017 | Buick Regal Cars & Trucks

1 Answer

2000 Jeep GC, stalled in traffic, started later in day when cooler, very hot day, AC was off and not overheating, no problems before.

Could be a several things, start with the easiest first,

1. Thermostat (DIY for under $10.00)
2. Radiator Fan relay (DIY for under $50.00)
3. Water Pump (DIY for under $70.00)
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Does your radiator fan run when AC is on or when engine is above 200F?

Jul 18, 2010 | 2000 Jeep Grand Cherokee

2 Answers

Fuel pump stops working,Then runs again later

You don't say how old the truck is - or how old the pump is - most likely it is the pump 'dying' as you try it -

I would look near the tank and find the ground wire -[ it may be on top of the tank] - the most common fix is the fuel pump and sadly it sounds like this is it --

Also - Take down the Vin # and call the local dealer - - ask about recalls and Service bulletins.

Dec 28, 2009 | Chevrolet S 10 Cars & Trucks

1 Answer

My durango suddenly died the other day and when i tried to start it back it would just crank and you couldnt hear the fuel pump running, i went back about 2 hours later and it started?? i drove it the next...

Check the fuel pump relay, it should be in the underhood fuse box, and could cause the problem your describing. Buy one at the parts store ( quite inexpensive) and try replacing it before going to the pump itself.

Dec 12, 2009 | 1999 Dodge Durango

1 Answer

Car will not start.

you could have a fuel pump problem, but first check the fuel pump relay. wiring diagram says it is in the thirteen position auxiliary relay panel, but does not say where that is. my guess is under the hood. if that relay is bad fuel pump won't work. after you find it you can listen to it when you turn key to run. if you can't hear it click it is not engaging and so is not switching power to fuel pump. hope that helps

Jun 05, 2009 | 2001 Volkswagen Beetle

1 Answer

Jeep Cherokee Sport 1993 stalls after start up fuel pump issues

good morning to you and welcome to hope we can get you fixed here. just a couple of questions first? have you changed the fuel pump yet? if so where did you buy the pump from? your pump is actually building up to much resistence and is unable to overcome it in turn no power is getting to pump as needed. i have a grand cherokee with 230k so i love hearing that you have that many miles. lets keep you rolling. let me know and ill help you out.

Feb 28, 2009 | 1996 Jeep Grand Cherokee

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