1997 Jeep Wrangler - Page 3 - Answered Questions & Fixed issues

Your alternator is regulated by the PCM. It could be the PCM or the ignition switch. Might want to try swapping out the shutdown relay just for grins before getting into the ignition switch. Good luck.


1997 Jeep... | Answered on Mar 29, 2015 | 359 views

your forward clutch is slipping, it wont do that for long before you cant move at all,
change your fluid and filter, and add lucas to the trans when you do, if you still have a problem, its over, you need it rebuilt


1997 Jeep... | Answered on Mar 29, 2015 | 143 views

its not a FORD, why would you thing a jeep is a ford?
is stock car , USA stock car (we are USA forum, )
then this book cover all that. its called the FSm.


ever wire, every bit,

why assume it has an inertial switch. ?
here is the truth.
  1. check all fuses first, (using a meter, no guessing)
  2. check fuel pressure, ah 0psi cranking,
  3. Check engine light must glow key or PCM is dead. (fuses)
  4. I check voltage at fuel pump relay output, its 0v cranking
  5. bad relay or PCM sees no spark.
  6. got 12v there, but not at pump cranking, bad wire .connector on way to pump.
  7. if 12vdc at actual pump and dead pump that is a bad pump. (0psi pressure)

1997 Jeep... | Answered on Mar 09, 2015 | 331 views

same as all cars. ever youtube that and see like 10,000 posts?
posted 100 times here, more...
  1. remove battery neg lug. (or boom)
  2. remove all wires from starter.
  3. unbolt starter
  4. it falls in to hands.
ill not post how to put it back,

1997 Jeep... | Answered on Feb 27, 2015 | 58 views

lots of reasons,
old post. fuses (2) blown makes whole cluster dead
is it all dead?

1997 Jeep... | Answered on Feb 22, 2015 | 26 views

so you have a DTC error (my other shoe drops?)
why not put US in context. what's up doc?
i can just say , unscrew it and take it out. but is that not obvious?
2wd or 4wd
transmissions used. (usa)
32RH trans A/T
AW4 trans? a/t?
or ax15, m/t and down this list.?
what is failing, ?
we can start there, or do a easter egg hunt.
speedo dead.
cruise dead
A/T box shifting oddly?
scan tool shows DTC errors ???? (it will if it this is bad)
The VSS sensor for speed veh, is at the tail of the transmission.
it measures tail shaft , main drive shaft speed, to do vehicle speeds.
there are many speed sensor on cars. some are used as a backup
when one fails.
tell more get more.

1997 Jeep... | Answered on Feb 19, 2015 | 132 views

TJ jeep
which engine, must we guess that?
usa car or export?

what makes you think it has one?
2.5L and 4.0L dont , they are gear drive.

the engine is here, look at TJ engine, page pdf 72 , see?

never ask a rice burner owner, how to fix a jeep?????

LOL !!

1997 Jeep... | Answered on Feb 14, 2015 | 154 views

trace the cause of a lamp fail 97 wrangler.
fuse blow for shorts, (preventing the fire)
so, there are only 3 ways to find shorts,

  1. visual inspection ever inch of shorted wire, (luck happens)
  2. pull all loads off the wire feed, is short not gone (BINGO?>)
  3. use an AMMETER, this is what we use, to get them all.

one nice way to find shorts,(not wanting to blow 100 fuses)
is to remove the blown fuse ATC and put in a Circuit breaker ATC fuse in that place, not it trips , cools off and repeat the trip
this allows for fast testing (meter) and pulling loads, checks.

your car is jeep TJ
and the wiring is free here.
the schematic tells you all things that can short to this node.
click wiring,
Tail/park shorts, (lots of loads, the highest of all wires it is)
answers USA only not export and no DRL light option.
we are tracing the complex path called PARK (tails)
see chapter 8W that be IT.
and page. pdf page # 8w-40-7 (pdf #93)
turn the dash dimmer to lowest, still blow fuse.
no, then the short is not in cab (easy huh?)
so parks are shorted, see 8W-50 (pdf 134)
see park there/ see those fues # which one blew, that is a big CLUE.
my guess is fuse 1, (others are head lights)
F1 blows
main HL switch park pin 9 ,black yellow wire feed.
see that?
see 8w-50-4 then page 5 , see all rear parks.
then see page 8w 70-20 for fogs.

there you go... i cant teach you how to use and ammeter.
so google that.
see all those junction C connectors, all can be pulled to isolate that short.

see connector C110 , pulling that isolates front parks
conn C322 , pulling that isolates tail parks.

as you see park feed is hug (simple) but huge, lots of places to short
and big time short if trailer wiring hacks are on car. look first.

1997 Jeep... | Answered on Feb 13, 2015 | 132 views

You had best check that the bolts are tight.

1997 Jeep... | Answered on Jan 26, 2015 | 83 views

Did you check fuel filter? Its a wealth of info what's going on in your fuel system.
This may sound strange but how strong is the battery? How old is it and starter? I'm going to assume you checked a spark plug? Got new plug wires, distributor cap,etc? Are injectors on rail? Clean their jets.
There's a mechanical part that probably is fine but the fuel regulator is on end of fuel rail and part of the whole deal.
Also make sure the relay for starter, fuel pump, etc is 'clicking' right. And don't forget that lovely carburetor. Air/gas mixture is imp. and grunge in carb is a deterent.

1997 Jeep... | Answered on Dec 24, 2014 | 30 views

nice double post, and is a statement this time.
no question formed.
backup one,and see answer and full fsm book, to read.
or download if you know how.

1997 Jeep... | Answered on Dec 18, 2014 | 22 views

front or rear, yes, rear is an option (8w-53 fsm page)
USA or export model? i guess front USA.
there can be 1 or 2 boxes, depends on years.
the operators guide, has this,, get one?
and the fsm, and haynes, rags, etc.
and can be found with google and alldata.com
here is the free fsm , you can find all you need here.

posted 100s of times now , on all jeeps.

a full chapter just on wipes.
and all wiring. and sure fuses
page 8w-53 shows fuse #14 runs front wiper motor.
page 8w-10-3 shows the box.
top left
16,15,14 (bingo here) 1 row down 3 over
buy an operators guide, or use my link and just look it up-.
same answer for all cars made. its in the glove box, that guide.

1997 Jeep... | Answered on Dec 18, 2014 | 123 views

It would if there are 2 belts or more present. If it's a one belt setup it has one tensioner. Are you having trouble replacing a belt. Most auto parts stores will print you a belt diagram free of charge. Hope this helps. Chris

1997 Jeep... | Answered on Nov 06, 2014 | 95 views

no FIRE? you mean the coil HV terminal is dead? (Fire is in the cylinders and never at a coil) its called SPARK, or HV. high voltage.
ALL: answers , USA and generic, until engine stated. and nobody fooled with dizzy timing.

which engine, we can not guess that, nor fix or help on NO ENGINE.
my guess is its the 4.0L (1 of 5 million) right?
i guess you are trying to fix a USA car, with no OBD2 $9 scan tool>
really? why do that.?
if you had the tool, and cranked for 5 seconds the tool would show you why there is no spark.

lets do jeep spark 101.. 1993 to NOW
the first steps are:
  1. fuses good?
  2. CEL lamp glow key on? if not fuses blown. or worse.
  3. i connect my scan tool and it communicates good if not , fuse bad.
  4. I crank the engine and the ASD relay closes, but drops in 3 seconds, (i crank for 5 seconds,) release the key and low and behold this cheap tool shows me DTC error for why.
  5. did the ASD drop out during the cranking session?
  6. yes then read why here.
  7. http://www.fixkick.com/Jeeps/ASD.html
  8. if the ASD holds, and there are no DTCs shown, then we now check for spark, at all cylinders. 4 or 6 as the case may be.
  9. got spark on all? no. they are all dead. so i check for spark at the coil HV terminal. it's DEAD.
  10. I check the primary side of coil, the coil is dead open , infinity ohms.
  11. I want you to know if the CKP or CMP or coil primary is bad
  12. the ECU will in fact throw a code (DTC ) for even one pulse in 10 missing. that is a fact. ECU secrets.
read the spark page, ignition. here.

and the schematics at the end.
the coil primary is about 2 OHms (never infinity ohms)
the secondary is about 15,000 (15K) ohms, not zero not infinity

lets now do coil checks (primary side) NO DTC ERRORS right?
ohms passes Homes. (lol)
chapter 8w-30-14 look here.
PDF page 70
a volt meter in hand.
the black (tiny) coil wire is at 12vdc key on for 3 seconds
if not 12v ever, the ASD is dead. you never said it pulls in.

if 12dvc is here for 3 seconds. then the ASD is working
and the PCM is dropping the ASD on PURPOSE, (use the scan tool)
ok i check the other coil wire,
and it pulses, at 12v 0v and 12vdc, the 0v is very fast.
seeing it pulse takes (major shop tools called a scope)
wire color is GY, (gray?) or green with yell stripe.

but the ECU will in fact warn you if the GY wire is dead.
so we are back to square one, no scan tool for $9

the ELM327 tool is that expensive.

cmp sensor is in dizzy base
CKP is the crank sensor on flywheel left side. at bell.
the ECU monitors the spark at the primary side.
if that fails, it tells you
if the ASD drops it tells you why, with DTCs.
learn to use a dirty cheap scan tool, for this car its dirty cheap.

i use a 3160 at home because it works on all cars.
old and new. best investment but i have 10 scan tools from 95 to now.

or this in a pinch.
a blue tooth tool. for NOTHING

good luck.
PS do tell what the ASD does, using 2 persons..... it takes 2. on all jeeps. one guy said on his jeep he can feel it close as he cranks

1997 Jeep... | Answered on Oct 02, 2014 | 97 views

no, there is no single tests. not in the least.

the hardest question on earth.
is really how to test a very complex computer.
i guess you dont own a scan tool ?
if you did you'd not need to ask this.
ill answer this is 3 classes, (my bailiwick)
  1. the car runs perfectly , full MPG and no CEL lamp and passes smog.
  2. and no DTC errors in memory or while running.
  3. it works.
  1. the CEL lamp glows key on, if not fix that first (fuse)
  2. The scan tool works, plugged in, if not fix that next (fuses)
  3. same as above owners class, if not? he, checks for DTC errors. and works those to there logical conclusions...
  4. He checks that all PCM inputs called sensors read right. (looking)
  5. he check that the injectors dont leak, or are dead.
  6. he makes sure the PCM runs in closed loop at idle, and light flat cruise, if not , we fix that.
  7. is the ECT reading, right, 180F+ or wrong, if wrong the thermostat is borked. or missing or. other reasons, the tests are easy. ask.
  8. we last check fuel trim, LTFT , long term fuel trim to see if the TRIM is centered. near 0 to +5% if not we find the cause.
  9. lots more , ill stop. fingers tired.

Pro test lab: like Cardone.
they use major ATE test equipment to test the PCM
and under stress !
click the engine control link here.

tell me ? why not just work the symptoms.
got symptoms? why not post them.?
ask for help on how to do the tests.?
why not do a full scan if the PCM using any OBD2 scan tool
(USA answers, always) you never said.

1997 Jeep... | Answered on Oct 02, 2014 | 147 views

In the Tank.

1997 Jeep... | Answered on Sep 28, 2014 | 35 views

there are 4 corners, what works and what dont.
and hazards.

1997 Jeep... | Answered on Sep 22, 2014 | 69 views

What does mash down the clutch mean??? If you get a noise whenever you depress the clutch pedal it may be that the throwout bearing is gone.

1997 Jeep... | Answered on Sep 21, 2014 | 80 views

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