Question about 1993 Jeep Grand Cherokee

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93 CHEROKEE TURNS OVER WON'T START

JEEP HAS SPARK AND GAS 167K MILES,STARTED OUTSIDE MOVED IT INTO WARM GARAGE TRIED TO START IT 5 MIN. LATER.TURNS OVER BUT WON'T START.SEEMS TO TURN OVER FASTER THAN NORMAL{MAYBE TIMING CHAIN?}.IS THERE ANY THING ALSE THAT IT COULD BE B-4 TEARING IT APART?MAYBE A FUSE OR RELAY OF SOME KIND...NOT SURE..THANX

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If it turning over faster than it should and not trying to start its the timimg..you need to replace the timing gears and chain

Posted on Jan 22, 2009

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I have a 2004 Jeep Grand Cherokee Laredo 4x4 with the 4.0L. It has approximately 150k miles on it. I started the Jeep with 1/4 tank of fuel in it and it started rough and acted like it was going to die....


long post.
ill reduce it for you.
misfires. (is RPM below 700 then misfire can be normal) for idle speed controls dead.
ISC the isc controls speed, of idle,.
mine stuck like zillion times, in 400k miles. endless.sticking
mine was a tiny gutless stepper motor drive ISC valve.
the cone valve is side gets nasty and sticks (
(PCV gases caused as seen on all engines)
i clean it.
the proof is the easy press of right foot easy raises idle back to 700rpm and engine stops misfiring.
ever get a tuneup this decade or running spark parts 500,0000 miles
for the new world record.?


now the tricky part of ISC, , fully explained in the SM serv. man.
the PCM learns its behaviors.
it learns all hot start settings and cold
so when you key on, it goes to the correct HISTORICAL spot.
if it can move there(sticks) engine car race.
or run too slow,
cold start would be worse, as hot isc is more closed
so if sticks there closed, the next cold start will be horrid
some newer manuals telly you to add 5% throttle if car is hard starting this is so common.

clean it. end story.
ISC

Mar 09, 2017 | 2004 Jeep Grand Cherokee

1 Answer

Engine quit when stopped at stop light. Acted as if it was choking then died. Tried restarting. Turns over strong, no start. Thought maybe no gas. Added gas after about 30 minutes. Started first try....


Sounds like the fuel pump is going out. Replace the filter first, as it's only $10. If that doesn't fix it, then it's probably the pump, which is $250.

Jun 10, 2011 | 1993 Jeep Grand Cherokee

3 Answers

2002 express 1500 van, will not start


remove dog house locate test port and install guage should be 45-60 psi

Mar 03, 2010 | 2002 Chevrolet Express

2 Answers

93' Grand Cherokee, dont start, no spark,no gas preassure


my 1996 jeep grand cherokee lmtd. won't start did tune up. cranks but no fire. please help. engine code 54 shows up . cam shaft positioning no signal. . tested all circuit. changed cam shaft positioning sensor twice.still cranks did start once ran for 5 min. changed the sensor again. no luck. help please. keith

Sep 10, 2009 | 1993 Jeep Grand Cherokee

2 Answers

1996 Jeep Country Wagon. Replaced fuel filter and


does your jeep run rough? idle is real low? and when you are driving and push the gas hard it doesnt want to move? if so it is most likely the mass air flow sensor. i had to replace that 2 or 3 times on my 1999 jeep cherokee

Jun 22, 2009 | 1996 Jeep Cherokee Country

1 Answer

1988 Jeep Cherokee turns over but won't start


change fuel filter sound like its stopping up .

May 01, 2009 | 1988 Jeep Cherokee

1 Answer

96 Jeep Cherokee stall then hard/no start


change fule filter if nothing changes do fule pressure test

Feb 11, 2009 | 1996 Jeep Cherokee Country

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