1998 Jeep Grand Cherokee - Page 8 - Answered Questions & Fixed issues

ditto, every word

1998 Jeep Grand... | Answered on Apr 15, 2014 | 83 views

if it is a v8, the tensioner is on the passenger side, and it you need a ratchet and socket to turn it clockwise. Put the belt around the pulleys like the picture. WHy did the belt come off? If the tensioner pully came off, its usually jsut one bolt that holds it on ab032765-7437-4262-9c08-0abc6eec7c6e.jpg

1998 Jeep Grand... | Answered on Apr 08, 2014 | 75 views

You may have to take the key to the dealer, so they can program the chip inside the key so vehicle recognize it.

1998 Jeep Grand... | Answered on Apr 03, 2014 | 92 views

which engine?
the dizzy timing is for injection.
but the rotor must point to #1 when#1 is at TDC,firing,
not posting engine , makes answers near impossible
dont feel; bad 99 out 100 never do and never get full advice.
people driver cars and are clueless as to whats under the hood
until it goes bad.
ever heard of and FSM , this covers this in spades, end to end.
alldata.com has it too.
as may.
free ,see ZJ car. and igntion chapter, bam. Jeep words all.


1998 Jeep Grand... | Answered on Apr 02, 2014 | 41 views

double posted.
nor what you are looking for.
im looking for what xxxxxxxxxxxxxxxxxxxxxxx?

what is X

manual for what? operators guide, lost, or FSM?
whole car,
just part of car.
just electric.?
alldata.com has it all , login and read.

1998 Jeep Grand... | Answered on Apr 01, 2014 | 69 views

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

1998 Jeep Grand... | Answered on Mar 31, 2014 | 1,334 views

You likely have a bad master cylinder, but there are other possible causes - let's check the cylinder first. You will need a helper to check.Locate the brake master cylinder and reservoir under the hood - usually on the driver side, by the firewall. Remove cap and have the helper press slowly on the brake pedal as you watch for fluid movement. If no movement seen, have your helper release,then press harder. Also note the color of the fluid - it should be fairly clear, with no "beads "( water) on top.If you see beads, your fluid is contaminated and you'll need to have the brake system power flushed. A specialized piece of equipment is needed to do this, and not all shops have it.If no fluid movement, you may need to replace the master cylinder. This is generally not a difficult job, and usually the reservoir comes with the new cylinder. Replacing the reservoir is recommended, as the new one will be clear and easy to read the fluid level through. Be sure to 'bench bleed ' the new cylinder first, so when you wheel bleed the system you won't have a battle on your hands. Always wheel bleed from the farthest wheel to the closest wheel..
Hope this helps!!

1998 Jeep Grand... | Answered on Mar 28, 2014 | 31 views

bad light bulb, it can be a fuse because many lights in car all use same feed. (usually on the dimmer knob circuit)

expect more soon. they are nearing end of LIFE.
700hr rating on most. (dimmed they last near for ever)

1998 Jeep Grand... | Answered on Mar 26, 2014 | 40 views

sounds like you have blown the internal heater matrix and the thermostat is not working or is blocked. you are going to need a new matrix and thermostat and a bloody good flush out of the system just in case there is something in the system means taking off the rad hoses flush them out from both ends. and doing the same to the engine. replacing the matrix as its not going to be able to fix it if its shooting water out of the vents change the thermostat check pipes for damage.

1998 Jeep Grand... | Answered on Mar 24, 2014 | 175 views

searching why, (buy an FSM and no more guessing...? )
basic service?
low fuel pressure? why?

ive got near a 1/2 million + miles on jeeps since 1988.
never stranded, but i do my service,.
my last chick-o-dee. was 99. with 5sp, all with that.
my 08 JK same.
the fuel filters on old loop systems is in the front of the tank
then later, , EPA forced most parts into tank with the new loop
or dead head systems. (EPA wants fuel cold .so, that is it)
i dont find parts hard to find, jeeps excel at that. vast resources.
nor hard electrical if you had a 2007+ then that be different.

id just crawl under car and gander, at fuel line but here we go
ill do it , online for you.
4Liter 98
options , with the 20gallon tank there is filter. on top of pump , in tank.
that means to me there are different filters there. by size tank .
if you dont see a filter, that means its in the tank.


ill paste the FSM page on this topic

he fuel filter is an integral component of the fuel pressure regulator, which is mounted on top of the fuel pump module, located in the fuel tank. When the fuel filter/regulator assembly requires service, the fuel tank must be removed from the vehicle, however, the fuel pump module does not need to be removed.
  1. Disconnect the battery ground cable.
  2. Relieve the fuel system pressure. Refer to Section 5 for the proper procedure.
  3. Remove the fuel tank assembly.
  4. Clean the area around the fuel filter/regulator.
  5. Disengage the retaining clamp from the top of the filter/regulator assembly. Discard the retaining clamp.
  6. Using 2 small prying tools, pry the filter/regulator assembly out from the top of the fuel pump module. The filter/regulator assembly will unsnap from the fuel pump module.
  7. Remove and discard the mounting gasket below the filter/regulator.
  8. Before discarding the fuel filter/pressure regulator assembly, inspect the assembly to verify that the O-rings are intact. If the smallest of the 2 O-rings cannot be found on the bottom of the filter/regulator, it may be necessary to remove it from the fuel inlet passage in the fuel pump module.
  9. Clean the recessed area in the pump module where the filter/regulator assembly is to be installed.
  10. Check the replacement filter/regulator assembly to make sure that the new O-rings are already installed on the assembly.
  11. Apply a small amount of clean engine oil to the O-rings.
  12. Install a new gasket on top of the fuel pump module.
  13. Press the new fuel filter/pressure regulator assembly into the top of the fuel pump module until it snaps into position (a positive click must be heard or felt).
  14. The arrow on top of the fuel pump module should be pointed towards the front of the vehicle (12 O'clock position).
  15. Turn the filter/regulator assembly until the supply tube (fitting) is pointed to the 11 O'clock position.
  16. Install new retainer clamp (the clamp snaps over the top of the filter/regulator and locks to the flanges on the pump module).
  17. Install the fuel tank assembly.
  18. Connect the negative battery cable.
  19. end

how is that ?

1998 Jeep Grand... | Answered on Mar 21, 2014 | 143 views

door switch stuck.
or the dash column switch for turn them all on , is on.
turn the all on switch to off.
this is covered in the operators guide, lost that.?

1998 Jeep Grand... | Answered on Mar 16, 2014 | 16 views

a jeep Chebby.?...nice swap, photos please....

1998 Jeep Grand... | Answered on Mar 14, 2014 | 84 views

We do not have that info here

Why would that question come up?

You buy only new quality parts for the

1998 Jeep Grand... | Answered on Mar 11, 2014 | 17 views

when you say "its not turning over", are you saying that the Crank is Not turning, or is the Engine Not Firing? You replaced the main Distributor Wire on top of the Distributor Cap? or checked to see if its not bad, or maybe you have a Defective cable, check with an Multimeter.
You can buy an inexpensive one at Walmart... Its a good investment, to have one handy. Including a Spark Plug Light tester, with a bulb.

1998 Jeep Grand... | Answered on Mar 10, 2014 | 44 views

hot engine or cold, or both????
no engine stated, this the I6? 4.0L inline 6? we dont know.!
can it be driven?// or its a dog.?? or stalls? or???
why did you not scan the PCM first.??????????

back fire?, this can be the following (text book true)
1: burned intake valves.
2: cam timing way off
3: spark timing way off.
4: or running super lean and aggressive throttle actions..

its a 1998 Jeep.
does it run? sure and badly....its misfiring, i bet. not just bogging.?
and long enough to see the CEL lamp go out?
if the CEL is on, running that means scan it,
in the USA< all scan tools work. why not scan it.?????????
why are you replacing parts. are you rich?
what id do is do the 3 classic tests.
compression, spark, fueling.
in that order , going backwards is long hard row to hoe. for sure.

compression at 150psi, or more on all cylinders.? at wide open throttle. ( a $20 tools, dirt cheap and 30min work)
alldata.com has the full spec. on that .
as does here.

if compression is good.
i whip out my $20 strobe light and check spark timing at #1
(open hood , look up, see that EPA spark time spec there? bingo.
if way off, find out why. now. do not proceed.
i then scan the PCM. with any scan tool. got DTCS? post them.
The PCM will report misfire, why not let it tell you?
as will it tell you the CMP or CKP are bad or misfiring, it WILL.
why not let it.? the JEEP will report the CKP misfire with 1 in 10 pulses. so

engine now will run and sound good on test fuel with fuel pump disabled. ( it runs for 3 seconds over and over an sounds good.)
i put back the Fuel pump relay and proceed with bad fueling
the #1 test is fuel pressure.
if the fuel pressure is low , way below 28psi no EFI works.
so that is first. and the ECU can not know its low, so injects weak.
all cars like this do that.
not only that the JEEP will drop the ASD relay if spark is bad orCMP,or CKP are bad . stalls instantly. i will.
no engine stated so no fuel pressure spec stated. sorry.
With the fuel pressure gauged atteched, (one more $20 tool)
i then do the injector leak down test. next. (pressure is good)
text book ways, if the pressure drops, it can be a leaking injector.
we check that very carefully.
then we do the injector balance test,(text book) ask. how.
the balance test checks for each injector to drain same as the others.
we activate the injector and watch it leak down.

i have a video of a famous youtube , shop doing that.
the balance test has 2 methods, using an injector pulser.(tool)
or the more tricky way of using the PCM /ECU to do our bidding
lets talk about that., the ecu pulse all injector cranking
so i key on until i have full line pressure.
i then unplug all injectors (electric plug) except say #1
i then pull the fuel pump fues at max psi, and crank down the pressure. but some jeeps cut all injection when the pump power is lost. so on JEEPS that have and ASD relay the trick is near impossible to do.
Some folks use 9vdc smoke detector battery to power the injector.
for a few seconds, this protects the injector from overheating
some injectors do not like full time 12v across there pins.

so you key on to get full pressure. then key off
pressure holds (the leak down test above passes)
then apply 9v to the inject and count the seconds until it leaks
down and stops. this is the injection rate.for #1
repeat on each injector, and compare them.
if one is dead or weak , its bad, clean it.
this is the only way to check injectors on cars.
the alternate is to send them all out for full cleaning
$20 each.
i get mine from here.

ok all the above is good, and it misfires, or what ever.
the order above is the only order that works every time.
lets pretend there are no DTCS running (id bet that is not true.!!!)
ill pretend.
i then connect my scan tool. and watch all sensors.
and makes sure they all read correct.
the first sensor is the MAF
but the jeep ,bless its heart has no funky expensive MAF>
it uses a MAP, for speed density systems. (not air mass)
this post is long, its for you and others tracking(have many)

So i start the engine, no DTCs
and look at the all sensors. to they all make sense?
say ECT reads (and IAC) near last nights ambient temps?
yes, good, say it was like 50F last night and first thing this AM
the 2 sensors match, at say 60F>
you start the engine and the CEL goes out and the
ECT rises fast and hits 180F and the IAT will be near about 100F
The IAT depends on its location, i just make sure it rises a bit.
the IAT is a critical sensors on all JEEPS and all Speed Dens. sys.
this sensor is used to calculator air mass. and temp is critcal.
if say the IAT reads too hot, say 100F on cold day the fuel
mix will go very lean and backfire.
THE ECT TELLS THE PCM what mode engine is in, cold, warm or hot.
I then look to see if the ECU/PCM reaches and holds closed loop
at idle. hot. (min dies it in 30second or less)
if not , i fix this first. (MAP readings and tests are next)
I will stop here, as the tests to do next depends on what is wrong now.
and im sure you found it already. DTCs or the test fail.

all this is text book ways. no guessing, all paths to success.

the path is called gathering evidence. (tests)

see Duane do his tests. (misfire)

here is Duane doing the balance test.

keep in mind, bad injectors, bad ECU, bad wiring can cause
any injector to fail, (leak,stick on, or die)

Duane's training videos are some of the best on the web.
note the ASE patch !!!
recap: !
Good engine, good spark, good injectors, good fueling.
The ECU inputs must be good, or fueling will be wrong.
we do check all inputs now if the above is ok.

its ok to check all sensors first, with the scan tool at the get go
it takes me , about 5min to do that, as the engine warms.
when at 180F ,im dont looking, in most cases.

that is it , unless you have scan data.
a scan tool can be had for $9 off fleabay.
or better for newer cars a 3160 from Innova.

good luck.

1998 Jeep Grand... | Answered on Mar 10, 2014 | 170 views

That could be telling you the engine computer is not getting power when you turn the key on. Have you tested the asd relay ?

1998 Jeep Grand... | Answered on Mar 06, 2014 | 43 views

double posted, back up one and read.

1998 Jeep Grand... | Answered on Feb 18, 2014 | 14 views

blown fuse.
or the kit was not fully installed or someone pulled relays in the kit.
is stock.
alldata.com has the wiring paths , for sure.
if not stock , anything is POSSIBLE.

1998 Jeep Grand... | Answered on Feb 17, 2014 | 158 views

no engine option stated. so cant answer.
or RTM, here it is, match your motor to correct chapter.


1998 Jeep Grand... | Answered on Feb 17, 2014 | 61 views

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