Question about 1997 Jeep Grand Cherokee

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Still have hesitation sputtering and loss of power on my 97 Jeep Grand Cherokee..

After trying several things including tuneup and cleaned the injectors, still have this problem ...I went online and found out this is a common problem,many say it is the PCM that needs to be repaired or replaced...can you give me any recommendations or advice? Thx.

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Check fuel pressure, may have clogged fuel filter.

Posted on May 11, 2014

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I replaced the TPS and MAP sensors and the engine ran fine again for many miles. Still today.

Posted on May 17, 2014

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Posted on Jan 02, 2017

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SOURCE: 96 jeep grand cherokee wont start

my 1996 jeep is doing the same thing.the fuse I have been changing is under hood in fuse panel on left 20 amp sm. in center of fuse panel closest to bat.

Posted on Aug 22, 2008

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SOURCE: I need to replace the water pump on a 97 jeep

there are 4 nuts on the back of the fan and a big nut on the fan shaft turn the one on the shaft toward the right

Posted on Apr 12, 2009

cbgarner
  • 138 Answers

SOURCE: Headliner falling in my 1997 Jeep Grand Cherokee with center console thing

You can try to use the spray contact adhesive

Posted on May 13, 2009

  • 323 Answers

SOURCE: 97 Jeep Grand Cherokee only blows heat and ac out of dashboard

There is a vacuum leak under the hood. If it's a 6 cylinder, look on the drivers side for a vacuum line that runs vertical with a 90 degree angle fitting to the manifold. That one usually comes off. If it is a V8 look on the battery side for a broken or corroded vacuum line.

Posted on May 18, 2009

st-modjeep97
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SOURCE: 1997 jeep grand Cherokee laredo hesitation problem

You should add a rs4 performance chip or the fuel economy chip also made by rs4. there like 70 bucks. If the problem is electrical changing your chip could solve the problem. Even if is doesnt work the chip will make your truck idle more smoothly, have better throttle response, and you will add 3-7 mpg. I bought one for my 1997 jeep grand cherokee straight six, and it felt like i was driving a different truck . It mae that much of a difference...you cant loose!!!Like everyone says , it could be a vac leak or a clogged fuel filter , soetimes bad gas...your problem is a needle in haystack. Try the chip...I hope this helps

Posted on May 24, 2010

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1 Answer

My 97 grand cherokee cranks but wont start any ideas


Check fuel pressure. If ok then go to ignition. If low fuel pressure, then its either:
  • Fuel filter
  • Fuel pump relay
  • Fuel pump
Ignition:

  1. Coil
  2. Ignition module
  3. dist. cap and rotor button if equipped. (give a good tuneup)
90% sure its fuel related

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My Cherokee Laredo sputters while driving periodically.


is this a how to diagnose it question or a kids guessing game.
we can guess all day, even all week, your CALL !
1993 still running a "Kodak moment"?
wow.
that is called MISFIRE, there are over 50 cause of that.
are you going to guess up to 50 + times> ? id hope not.
and all misfire causes engine power loss, (all)

ZJ jeep
3 engines, 5.2L is yours.
ever put in new spark plugs??? in last 10 years?
you cant burn fuel with bad spark so this is like #1 for 100 years+
gas engines....
test 1, can you save the stall, with a fast right foot
if no, the you lost 12vdc to key EFI parts or its fuel problem
this be 2nd after new spark parts, (a tuneup is always first of owner does NOT do proper service)
why spend 4 hours shop labor only to find , omg,100,000 mile old
tuneup parts, (big cash to learn they dont last a life time)???

TUNEUP?
filters (both)
spark plugs.
if those old ratty spark wires are 24years old, they are hopeless
distributor cap, same thing
distributor rotor same.

if it still misfires, it can be injector problems. (lots of tests here)

even engine cylinder compression low, we always check 90s cars for this, after all its OLD.
generic, data; on 5.2. 9.1:1 CR sea-level spec only.
150psi x8. wide open throttle or more.
read data shows
1993-1998 Grand Cherokee. 5.2L v8 9.5:1 CR, 180 PSI
ask how to do that test correctly.


This 1993 the check engine lamp can glow, running?
if it is? , it must be scanned to find the codes, DTC errors
Innova 3160 tool can do that.
or most good shops. or even the Actron CP9145 (used onlY)
the latter tool is the Bee's knees on old cars. with EFI.

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Well if your battery and fuses check out fine the next thing i would suggest would be to make sure all your battery cables are good and snug, both at the battery side, and the vehicle side.

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did you figure out what the problem was? Mine is doing the same thing and I think it is drainning the battery.

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sounds like a bad pump, filter or both. Do some testing before replacing though, a bad crankshaft sensor can do pretty much the same thing! Parts are not cheap...testing is very important!!!

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