Question about 1997 Jeep Grand Cherokee

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My jeep keeps stalling on me and the check engine light never comes on, people tell me it may be the fuel pump. i have been told it cant be hooked to compuetr because of the check engine light not com

Sometimes it will run fine and sometimes rough. i ran rpms up to 5000 and when it come back down it idled really rough till i taped the gas again it will try to die on or actually die on me while sitting in park and while driving down the road. usually will start back but having more trouble getting it to start when it does die. i know the check engine light works but when the jeep stalls it doesnt come on so auto parts store says they cant check it due to the light not coming on so its not gonna give any codes.

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  • Jeep Master
  • 2,372 Answers

Could be temperature sender,crank sensor,cam sensor and alot of other things. What year and model engine is it? Get it read with scanner anyway. There could be stored or pending codes.some scanners have live data and a service may let you use it hooked up as you drive and when it shuts down they can go thrue scanner and review all data to find the problem.

Posted on May 17, 2017

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  • Jeep Master
  • 12,168 Answers

A stalling problem doesn't have to turn on the check engine light . Try some basic thing's like cleaning the throttle plate (body) air passages for the IAC - idle air control valve . There are videos on youtube , also check for a vacuum leak !

Cleaning Throttle Bodies
Throttle Body Cleaning To Restore Idle Quality

Posted on May 17, 2017

  • Jeff Armer May 17, 2017

    Stuck open EGR valve could cause stalling >

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

jackiaria
  • 350 Answers

SOURCE: check engine light/rough acceleration

Dear atomicboy488,

A lot of Rain=Possible Water in the Gas=Erratic Running!
This sounds like it may be as simple as cleaning the water or gunk out of the gas tank which is what I always do 1st because it's easy and inexpensive.
If your fuel is contaminated with gunk, grime, WATER and/or bottom junk like rust this will cause stalling AND ROUGH ACCELERATION!
Try spraying a can of starter fluid in the air intake and see if it runs! If it does, it's most likely bad fuel or clogged injectors so....
Fill the tank with High Test, Add some DRYGAS and a good fuel system cleaner or 2 or 3 and this should dissolve all the gunk and clean the injectors! Read & follow the cans' instruction carefully.
If this cures the problem never let your gas tank get below 1/4 and especially never run it to empty as this is when the gunk and/or water will enter the system!
Hope this helps!
Good Luck!
jackiaria
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Posted on Feb 11, 2009

  • 6982 Answers

SOURCE: jeep wrangler stalls out

check idle air control, tps & map sensor. As usual with electronics, test test test before buying anything/

Posted on Feb 18, 2009

teezay731
  • 1 Answer

SOURCE: rough idle stalls at low rpm's

check your transmission fluid,the motor will stall when fluid is low

Posted on Mar 24, 2009

  • 94 Answers

SOURCE: 2004 Jeep Grand Cherokee. Keeps stalling, engine

P0505 means the whole Idle Control system, not only the IAM. Check all related sensors (i.e. crankshaft sensor). Check with a voltmeter direct at the connector of the IAM if you get any signal. Remove the IAM from the TB, connect him, let someone switch your ignition key to ON. The IAM need to drive in/out for a short time to find the right position. Hold the IAM near a hard part, that they cant drive out completely! If IAM works fine, check the fuel pressure, check and clean your TB ( if not done yet). If that doesn't work, come back again please

Posted on Oct 27, 2009

  • 3 Answers

SOURCE: 1998 jeep grand cherokee keeps

similar problem with mine. disconnect battery for 45 min and better=
reconnect battery 1 hr later better/causes car computer to reset

Posted on Sep 13, 2010

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2 Answers

STARTS BUT WON'T STAY RUNNING


Could be something as simple as a dirty fuel filter.
Get a can of quick start at the store and have someone start it up, when it wants to die squirt a shot into the intake ... if it runs again for a bit you have a fuel delivery issue. Check the fuel pressure to see if the pump is functioning properly.

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2009 Jeep Lib Speedometer Stops, Stalls and LIghts come on


no , you were told wrong, but ABS is bad too. (or was just the stall resetting ABS to self test mode)
you have 2 independent failures.
1: brakes. (if ABS is on,, not stalled !!!)
2: engine. (this is IT, fix this)

you are guessing at ABS parts.? just throwing them. why do that?
my guess is you have a mech, and you want seconded guessing
on line with blind folks here.


the engine stalls moving,
that usually means the ASD relay dropped out, did the IMMO light come on? you need to look at what all lights did in the cluster at stall.
a stall causes rapid deceleration and loss of all engine power
and RPM drops and MPH drops and at the point of stall
all Cluster lamps go ON. they go to key on self test mode as
stated in the users manual. (lost sure)
to witness this, key on, no start, and bingo the self test happens.
those are NOT failures. its just a self test. Per manual.

Does the ABS stay off driving and not stalling or stalled.
yes, then ABS is ok......

did you take it to a shop (crooks) and tell them my ABS is on?
and they see it's out, and go, gee we can make some cash here for nothing. if you tell them wrong, they will in fact guess, and make you broke fast.
ABS can go on just with a bad brake caliper pad. a $10 part.
if car stops ok, and the lamp is out RUNNING !!!!
Then leave the ABS alone. why assume the most expensive part on car is bad, why do that...???? why not put on new pads. and rotors.
first. then test the ABS. ABS is not magic it cant help stop any car with bad manual brakes. not at all.
end brakes; now back to ENGINE.


then fix the stalls,
here is the stalls list, for only the ASD.
(even a tuneup, will end stalling)

THE ASD is the funky Jeep thing, that kills the engine for many a reason. (there are tests for each case failure)

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


if the CEL lamp comes on driving < NOT STALLED)
then connect any scan tool, to the DLC connector at knees.
and scan the PCM for DTC errors.
then post those.
keep in mind, errors can AUTO clear, so not seeing them
in REAL TIME< means you missed the boat.
that is, you didnt get the facts of the failure.
but errors still in effect are stored and you can in fact
scan them parked, key on.
the CEL is only a SMOG light, you must scan to see the other 100+ errors. possible.

Better:
find a real ASE shop, and ask them to fix the stalls, (car stops good)
then they will fix that
and by magic the stalls are gone and the dash lamps go happy.

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1 Answer

Stalling when turn back on


all stalls end in CEL check engine light on. that is normal
but CEL glow. when engine running , means you had a failure, and it stored DTC error codes, so scan it.
lots of causes. huge list.
get a tune up , tops list.

SCAN it to be sure all sensors work. running.
all fuses in car good.
by stalls , i assume the engine stalls and engine RPM is 0 RPM.
the stall cause the whole dash to light up, all the warning lamps come
on (self test) oil , charge , CEL. come on.
what is important is the stall and the cause.

i will tell you the 3 ways.
lost electrical power to engine EFI system (seems not)
bad engine, (lost compression hot)?
bad spark , spark died.?
bad fueling, lost all fueling (starves and stalls or floods and misfires horribly and stalls (black spark plug tips are big time clue)

if non eof the rings a bell.?
get the car serviced.

this car is newer nicer car, you (we) can scan and drive and log data.
allowing faster easy diagnosis.

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1 Answer

Fuel pump does not work. any tips on replacing? would not come on when ignition was turned on, till after a few minutes it would kick in


There is nothing wrong with your fuel pump. Your jeeps main ecu needs repair. It is not sending current to the fuel pump relay right away as it should. You can tell this is the problem because the check engine light does not light up, on the dash, until a few minutes later after the ignition is turned on. Only then will the fuel pump relay energize and the fuel pump prime. It's the classic known delayed check engine light problem that plagues those generation jeeps. Have the ecu computer repaired.

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Check fuel pump pressure and fuel pump regulator. It sounds like you are not getting fuel into the system and if you are you are not getting enough fuel into the system

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2004 Jeep Grand Cherokee. Keeps stalling, engine


P0505 means the whole Idle Control system, not only the IAM. Check all related sensors (i.e. crankshaft sensor). Check with a voltmeter direct at the connector of the IAM if you get any signal. Remove the IAM from the TB, connect him, let someone switch your ignition key to ON. The IAM need to drive in/out for a short time to find the right position. Hold the IAM near a hard part, that they cant drive out completely! If IAM works fine, check the fuel pressure, check and clean your TB ( if not done yet). If that doesn't work, come back again please

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2 Answers

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