Question about 1995 Jeep Cherokee

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95 cherokee. After basis tune up runs rough. smooths out @ 2000rpms. Now won't start. Engine cranks fine. Help.

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  • Jeep Master
  • 20,706 Answers

Ok before tune up?
basic , means, on old cars.
cap ,rotor ,wires, sparkplugs (gapped right) and all filters.
so change the spark wires 1 by one, or it will never run.
i bet you scrambled the wires. (I4?)
if I4 there are 1million posts on line to set up the 4L, I4, engine.

Posted on Nov 23, 2013

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Posted on Jan 02, 2017

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bunnydawg
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SOURCE: 95 jeep grand cherokee, hard starting, backfires, when cold

get a couple bottles of gas line antifreeze .. if you don't already use it and add it to the gas.

Robert

P.S. in minus 40 i don't even get out of bed... minus 23 here last nite... isn't winter grand

Posted on Jan 21, 2009

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SOURCE: 93 Jeep Grand Cherokee Won't start

The crankshaft position sensor was seriously problematic in those old jeeps. It's located towards the top of the bell housing slightly to the driver's side I think.

Posted on Apr 15, 2009

  • 6982 Answers

SOURCE: 1998 jeep grand cherokee, with 4.0 6 engine will

OK...if someone gives me a bad rating on this, I'll be really annoyed...
saw off the "fixed" hold-down on the distributor and use a chevrolet smallblock hold-down. Once re-installed turn distributor ccw about 1/4" or slightly more. If I'm correct, engine should run fine after that.

Posted on Apr 16, 2009

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SOURCE: 2002 jeep grand cherokee with 4.0 engine will die but restart

p0340 is the cam shaft sensor, this will cause it to cut off while driving, hardtime starting, p0351 is the ignition coil A primary/secondary curcuit mal function. p1391 is ignition system misfire, this could be plugs, wires, or coils. first of all have the cam sensor changed and it may correct the rest of the codes. when fixed turn light off with obd2 scanner. if you do not have one, then any auto parts store will erase the codes fo free of charge.

Posted on Jan 21, 2010

  • 27 Answers

SOURCE: My 1997 Jeep grand cherokee is running real rough ...

check the cables of the spark plugs, some times it occurs that the cables get loose from its plastic retainers and touch any metal in the engine, causing missfire of the related spark plug, hence rough running of the engine. Put all cables on the retainers making sure none touches the bare metal of the engine. That should help.

Posted on Aug 11, 2010

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1 Answer

My 99 Cougar starts. When you get it up to 2000rpms it shuts down and is hard to keep started after that. Any ideas what could cause this?


might be a fuel supply problem, as the engine runs faster it needs more fuel and more air to combust it, if sufficient is not being supplied then the engine cannot run any faster. You probably need the services of a competent mechanic. Does it run smoothly at idle or is it rough. If it is rough this might indicate that there is also another issue. backfiring indicates a fuel/air mixture mixture problem.
Acarb/timing man should sort it.

It is also worthwhile doing the standard things like checking plug leads/ distributor.

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1 Answer

When the outside temp is below 30 degrees my 1994 jeep grand cherokee 4.0 will not start


lots of guesses. sure.. common here.
first would be a real tuneup , using the 60,000 mile list. for sure.
filters and spark parts. (my guess is you did)
1994 is a great year, all 93+ jeeps are good from 93 to now.
I presume this is USA car, and you scan it and there are no
DTC errors.????
seems its flooding ,
if 5% throttle makes it start, that is lack of air or flooding
if wont start and the super secret WOT crankings clear flood , then was flooded, Wide open throttle cranking , cuts all fuel (the secret)
so is , IAC/ISC stuck closed, chean it yet.
or injector leaks (pass the injector leak down test ,does it?0

got 500k miles o jeeps from 88 to 99+
and the ISC stick on them all.

the ISC is the electric, ldle speed control valve.
if it sticks closed, you cant get full air supply to start.
had to clean mine every 10 to 20k, miles.
until i found the magic, spray that cured that.
"klondike gun lube spray": looks like teflon after it dries.

that run rough started is called misfire.
and is flooding, (if injector are not leaking) its air supply wrong.
one more thing,
the ECT must read 30F when parked overnight, and was 30f.
see? a cold engine will be near ambient air, first thing, in the morning.

running old fueL:?
running summer fuel from last August?
the ECT sensor causes injections to match true temps.
make sure it reads right for all bets off.

clean ISC first. not shot gun parts
for that cash you could have got a nice scan tool.
like this.

http://www.walmart.com/ip/Equus-3140-Innova-Diagnostic-Code-Scanner/14644660

the prefect tool for 93-95 jeeps. does OBD1 on JEEPS !!!!

Mar 03, 2015 | 1994 Jeep Grand Cherokee

1 Answer

When ac or heat on, runs and idles rough


double posted, but now we know its a 95 chickodee.
do a tune up,. ever? ever do the critical 60k mile tune up?
60,120,180k etc>?
engine misifre, is that what you have? (rough engine?)
are you parked or moving.????????

Dec 30, 2013 | 1995 Jeep Cherokee

1 Answer

Grand cherokee laredo 95 4.0 liter. motor run rough.need the timer orhow to fix this


These vehicles are timed by computer. You should start by pulling the engine codes, and then checking the systems that the codes reference. there are many many things that can make an engine run rough. I, in particular, think this is typically a wonderful engine. If you are competent, start with the basics...usually both the simplest and least expensive...look at the tune up items if they have not been done recently...but again, first start by pulling the codes if there are any present...meaning the check engine light is on. Post back what you discover please.

Mar 30, 2010 | 1995 Jeep Grand Cherokee

1 Answer

1996 jeep cherokee sport 4.0 L it will stall


it looks like your engine is having an over rich fuel mixture maybe, thatswhy when you press the pedal to the floor it starts becouse you allow lots of air to help clean the mixture while cranking, also you should have black smoke in the tailpipe until it cleans up and runs fine, i think youre having a leak in one our more injectors you should check them first for proper seal under pressure these is done in an injector test machine, second it may be a defective map sensor these trucks some times have a bad map and dont give a MIL (malfunction indacator lamp) and last but more rare to be is a blocked fuel pressure regulator chek fuel pressure it should be between 38 and 45 psi and it shoul hold these pressure when you turn off the engine if pressure drops fast its injector seal problems or fuel pump check

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1 Answer

Will not start the first try but will start the second try but runs rough then smooths out and drives ok 1998 jeep grand cherokee 4.0


sounds like you either need a tune up,or the starter is going bad.It probably runs rough due to unburned gas from failed starts.

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1 Answer

Engine running rough, hard starting


Try cleaning the EGR, there common to carbon build up on the 95 JImmy's.

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