Jeep

Have Jeep questions? Ask a Jeep repair expert for answers

Ask an Expert,
Get an Answer ASAP!

This answer was rated:

I have a 2002 jeep wrangler, have been back and forth with a…

I have a 2002...

I have a 2002 jeep wrangler

Mechanic's Assistant: Are you fixing your Wrangler yourself? What have you tried so far?

Have been back and forth with a mechanic

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

So this is just that easy ?

Show More
Show Less
Ask Your Own Jeep Question
Answered in 2 minutes by:
1/21/2018
Eric
Eric, Automotive Repair Shop Manager
Category: Jeep
Satisfied Customers: 34,303
Experience: 20+ yrs. experience as repair shop manager and technician.
Verified

HI,

Ok, what is your question on your 02 Wrangler and what is the engine size?

Ask Your Own Jeep Question
Customer reply replied 3 months ago
its a 4 cylinder. we it just keeps cutting out once it moves into gear. neutral and park it will idle fine but once it move into gear it starts then cuts out. i do notice however that when it is in gear, and i have the break pressed, as soon as it starts to stutter and cut out i can give it gas with the break press and it comes back to life but as soon as it gets no gas it cuts out.the mechanic has done this:
1) changed the radiator
2) changed the thermostat
3)replaced hoses
4) changed idler

HI,

Ok, does it do this in reverse as well?

Is the check engine light on?

Ask Your Own Jeep Question
Customer reply replied 3 months ago
seems to happen in reverse as well...check engine light has been on for some time even before this issue :/ but yes it is on.apparently the mechanic checked the computer and it indicated the idler bad which is why it was replaced. i didn't have first hand dealing with the mechanic as it is my moms jeep and im trying to help her cuz its her only transportation to work.

HI,

Ok, if you have the Wrangler with you right now and it has a digital odometer, do the following -

Within 5 seconds, turn the key in the ignition on-off-on-off-on, leaving it in the on position(on position is position just before cranking). Look at the odometer and current fault codes should scroll across. Let me know what they are.

If you dont have the Jeep with you let me know and I will go thru the probable causes with you

And, I need to know if it idles smoothly in park

Ask Your Own Jeep Question
Customer reply replied 3 months ago
ok 2 codes:P 0443
P 0320well smooth is relative term (not as smoothly as my toyota tacoma :) ) so i'm not sure if i idles "smoothly" in park but it does not in my observation cut out when in park or neutral. and my mom reports that it does not happen in park or neutral.

Hi,

Ok, give me about 5 minutes with both these codes

Ask Your Own Jeep Question

HI,

P0320-NO CRANK REFERENCE SIGNAL AT PCM

WHEN MONITORED
With the ignition ON.

SET CONDITION
No signal from the Crankshaft Position Sensor is present during engine cranking, and at least 3 Camshaft Position Sensor signals have occurred.

SYMPTOM
P0443-EVAP PURGE SOLENOID CIRCUIT

WHEN MONITORED
At ignition key on and battery voltage greater than 10.4 Volts, during initialization or power-up.

SET CONDITION
Not powering down, not in limp-in and time since last solenoid activation is greater than 72 micro seconds. The PCM will set a trouble code if the actual state of the solenoid does not match the intended state on two consecutive key cycles.

Both the wiring for the cam and crank sensors need to be checked for breaks, cuts, brittleness and repaired as needed. If ok, replace both cam and crank sensors. Cam sensor is in the distributor and crank sensor is at top left of transmission bellhousing- see attached. Both of these will cause the current symptoms.

The evap purge solenoid, located near the brake master cylinder and booster- see attached - will need to be replaced for the P0443 code

If for any reason, you can't rate my answer OKAY, GOOD, or EXCELLENT/3 STARS OR HIGHER today. Please reply and let me know why, so I can help more/better. All follow up responses are FREE, after completing the required rating

Please remember to rate service using the separate pop up rating page. Thank you

Ask Your Own Jeep Question
Customer reply replied 3 months ago
are you able to provide the exact part numbers to be replace or links to them on rockauto.com or similar?

Hi,

Purge solenoid valve -(###) ###-####B

Crank position sensor - 56027865AB

Cam sensor - 56041030

If for any reason, you can't rate my answer OKAY, GOOD, or EXCELLENT/3 STARS OR HIGHER today. Please reply and let me know why, so I can help more/better. All follow up responses are FREE, after completing the required ratingPlease remember to rate service using the separate pop up rating page. Thank you
Ask Your Own Jeep Question
Customer reply replied 3 months ago
awesome thank you. you said said:"Both the wiring for the cam and crank sensors need to be checked for breaks, cuts, brittleness and repaired as needed"if it turns out the wiring itself is suspect, and we refresh that before targeting replacement of teh cam and crank sensors themselves, is there are specific part number(s) for the wiring kits for these or would the mechanic be able to get the wiring from a hardware store?

HI,

Unless the wiring is broken right at a connector where a repair is not possible, I just cut the bad section out and use solder gun and heat shrink to splice wire together.

If it is at a connector, then you replace the part itself or go to a junkyard and cut a connector off the harness and splice into harness. The pigtails were discontinued in 2012 for this vehicle so there is no option for buying just a connector pigtail

If for any reason, you can't rate my answer OKAY, GOOD, or EXCELLENT/3 STARS OR HIGHER today. Please reply and let me know why, so I can help more/better. All follow up responses are FREE, after completing the required rating

Please remember to rate service using the separate pop up rating page. Thank you

Ask Your Own Jeep Question
Customer reply replied 3 months ago
much appreciated. i really hope this solves her problem. will let you know. thank you.

you are welcome

If for any reason, you can't rate my answer OKAY, GOOD, or EXCELLENT/3 STARS OR HIGHER today. Please reply and let me know why, so I can help more/better. All follow up responses are FREE, after completing the required rating

Please remember to rate service using the separate pop up rating page. Thank you

Ask Your Own Jeep Question
Customer reply replied 3 months ago
oh one last thing, i am pretty handy and have tools. do you think i could replace these parts or better left to a mechanic? figured if it was an easy procedure could save some money but if its a more advanced thing ill just have the mechanic follow your instructions

HI,

They are fairly easy to replace and you can replace yourself.

If for any reason, you can't rate my answer OKAY, GOOD, or EXCELLENT/3 STARS OR HIGHER today. Please reply and let me know why, so I can help more/better. All follow up responses are FREE, after completing the required rating

Please remember to rate service using the separate pop up rating page. Thank you

Eric
Eric, Automotive Repair Shop Manager
Category: Jeep
Satisfied Customers: 34,303
Experience: 20+ yrs. experience as repair shop manager and technician.
Verified
Eric and 87 other Jeep Specialists are ready to help you
Ask your own question now
Customer reply replied 3 months ago
I have just replaced the crank sensor and it seems to be the wrong part number that was provided. 56027865AB.The number on the existing sensor is 56041819AA. The new one is slightly different and slightly too big.I do notice whoever that the existing sensor is caked in oil and the whole areas seems to be caked in engine oil. I can see what the sensor makes contact with on the bell housing but could the oil sludge be causing issues with the sensor?So at this point I have the wrong replacement part and I am thinking that may be if sensor itself and where it makes contact was wiped clean of oil that could solve the problem maybe?
Customer reply replied 3 months ago
meant to say i CANNOT see what the sensor makes contact with

Hi,

Very possible that is the issue. Any grime, grease or oil on the sensor end or sides will affect not only its ability to read the tone wheel on the flywheel, but can also cause bad readings.

Use either Seafoam or a non-chlorinated brake cleaner to clean the sensor and clean around the hole and sides of the hole the sensor seats into.

Ask Your Own Jeep Question
Customer reply replied 3 months ago
ok i will try. if not then am i splicing the old connector to the new sensor as a next step?
Customer reply replied 3 months ago
will a little dawn in water suffice to clean it?

HI,

The Dawn with warm water will work. Just make sure to rinse good with water to get all residue off.

Correct on next step

Ask Your Own Jeep Question
Customer reply replied 3 months ago
I have just replaced the crank sensor and it seems to be the wrong part number that was provided. 56027865AB.The number on the existing sensor is 56041819AA. The new one is slightly different and slightly too big.I do notice whoever that the existing sensor is caked in oil and the whole areas seems to be caked in engine oil. I can see what the sensor makes contact with on the bell housing but could the oil sludge be causing issues with the sensor?So at this point I have the wrong replacement part and I am thinking that may be if sensor itself and where it makes contact was wiped clean of oil that could solve the problem maybe?

hi,

Did you mean to post your last post as it is a duplicate of your earlier post this morning

Ask Your Own Jeep Question
Customer reply replied 3 months ago
im on a while goose chase here.spliced old harness onto new sensor, engine is cranking but never starts.spliced old harness back onto old sensor, engine starts and still same problem cutting out in gear.in both cases, engine is throwing a P0320 code ONLY now. don't see the other code anymore...is my new sensor bad? incompatible part number?whats the next step here?

HI,

With new sensor in, when you crank the engine over, does the tachometer have a signal and the tach needle moving as you crank it

Ask Your Own Jeep Question
Customer reply replied 3 months ago
Gonna have to get back to you tomorrow she had to take the jeep Home.If the tachometer does behave that way then what? If it doesn’t then what?If you can tell me all the things to try and I can try them all and tell you the outcome while the sensor is loose and I can switch between the old and new as it’s a real pain to tighten and untighten thanks.

HI,

If you have tach signal, which comes from the crank sensor, then it should be good.

Have you replaced the cam sensor in the distributor yet? If getting tach signal, then I would go ahead and replace the cam sensor if you havent.

If no tach signal, then still an issue with the crank sensor

Ask Your Own Jeep Question
Customer reply replied 3 months ago
ok jeep is here going to put the other sensor on now and check
Customer reply replied 3 months ago
no tach signal. all gauges move except tach and speed.still waiting for the other 2 parts numbers you provided to arrive...
Customer reply replied 3 months ago
another bit of info...see attached photo, our jeep does not have that plastic/rubber gasket thing that the arrow is pointing to its just one big hole. does that matter? actually, when i took the old one off for the first there was a piece plastic that came off with it but it looked broken perhaps that was a piece of it. not sure if that matters.
Was this answer helpful?
Ask Eric Your Own Question
Eric
Eric
Eric, Automotive Repair Shop Manager
Category: Jeep
Satisfied Customers: 34,303
34,303 Satisfied Customers
Experience: 20+ yrs. experience as repair shop manager and technician.

Eric is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Thank you so much for your answer. My initial estimate was $325; I got it done for $100 - part and labor.

Lynn B.Ormond Beach, FL

I was skeptical at first but thought I'd give it a try. I was pleasantly surprised. Your site actually is a quality service that I would recommend to others in a heartbeat.

StanSayre, PA

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

< Previous | Next >

Meet the Experts:

Chris

Chris

Shop Foreman

3,449 satisfied customers

Jeep Certified Master Tech

Mark

Mark

22 Year Factory trained technician

2,593 satisfied customers

Jeep factory training........25 years in the industry.

Dave

Dave

Jeep Master Tech

1,149 satisfied customers

Chrysler Triple Master, ASE master Tech AA degree in Auto.

moparfl

moparfl

ASE Certified Technician

1,130 satisfied customers

ASE Master Tech Chrysler Dodge Jeep Master Tech

Tim Mohr

Tim Mohr

ASE MASTER TECH

1,021 satisfied customers

30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL

Ron Z.

Ron Z.

- Jeep Tech -

629 satisfied customers

18+yrs experience. State Inspector & Jeep Diagnostics/Repair

jeepmopar76

jeepmopar76

Jeep/Chrysler Triple Master Tech

579 satisfied customers

32yr ASE Master Tech, 9yr Chrysler Master Tech, 19 yr Jeep Dealership service including AMC/Eagle

< Previous | Next >

Related Jeep Questions
2007 Jeep Liberty: The malfunction light stays on..gas cap..tight
I have a 2007 Jeep Liberty. The malfunction light stays on. I checked the gas cap, took it off, and made sure it was on tight. Drove and still light was on. I recently put in some STP gas additive to … read more
sprinkles08
sprinkles08
Technician
High School or GED
11 satisfied customers
Jeep Wrangler: I have a 98 wrangler that has heater problems.
I have a '98 wrangler that has heater problems. The temp gauge was heating up to about 210 but the air coming out of the vents was barely warm at best. The coolant level was good but the upper radiato… read more
Brad
Brad
Technician at Dodge Dealership
Vocational, Technical or Trade Scho
12 satisfied customers
What is the normal engine coolant temperature for Jeep Grand
What is the normal coolant temperature for a 2011 JGC once it is warmed up? Where should the coolant gauge needle sit (3/8, 4/8, what?).… read more
ND-TECH
ND-TECH
Chrysler/Jeep/Dodge specialist tech
Vocational, Technical or Trade Scho
955 satisfied customers
Overheating,I have replaced sensor,Thermostat,heat sending
Overheating,I have replaced sensor,Thermostat,heat sending unit,and waterpump.When it idles for 7-10 minutes it syarts to overheat.The fan on my Jeep seems to be OK.Could it be a stopped up radiator? … read more
rpmdiag
rpmdiag
High school
7,578 satisfied customers
I just replaced the water pump and thermostat and now it is
i just replaced the water pump and thermostat and now it is running very hot … read more
Gunvir Singh
Gunvir Singh
1,949 satisfied customers
Have an engine code p1281. P1281 thermostat in active. 2004
It keeps on overheating change the thermostat water pump and the sensor but the fan is not coming on… read more
bill
bill
chrysler dodge jeep tech
Vocational, Technical or Trade Scho
458 satisfied customers
Ive changed the radiator,water pump and the thermostat and
ive changed the radiator,water pump and the thermostat and all the hose but it still is over heating .. what else can it be? … read more
eauto
eauto
self employed
High School or GED
74 satisfied customers
It is overheating. Just changed the thermostat and still
It is overheating. Just changed the thermostat and still overheating? … read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
Overheats, new thermostat, checked water pump no clue why,
overheats, new thermostat, checked water pump no clue why … read more
eauto
eauto
self employed
High School or GED
74 satisfied customers
What is the cost fto replace a thermostat in a 2011 jeep
What is the cost fto replace a thermostat in a 2011 jeep Larado with … read more
Brad
Brad
Technician at Dodge Dealership
Vocational, Technical or Trade Scho
12 satisfied customers
Changed thermostat keeps losing heat and anti freeze, Not
Changed thermostat keeps losing heat and anti freeze … read more
Brad
Brad
Technician at Dodge Dealership
Vocational, Technical or Trade Scho
12 satisfied customers
It's the thermostat lady again....I may not have time to get
It's the thermostat lady again....I may not have time to get my thermostat changed today, so is it safe to drive? Plus will it eventually not blow out warm air at all at some point?… read more
Chris
Chris
Shop Foreman
3,449 satisfied customers
How do you change the thermostat on a 2005 jeep grand
How do you change the thermostat on a 2005 jeep grand cherokee 4.7L V8.… read more
Ron Z.
Ron Z.
- Jeep Tech -
Vocational, Technical or Trade Scho
629 satisfied customers
My 2002 Jeep Liberty heater doesnt seem to be working properly.
My 2002 Jeep Liberty heater doesn't seem to be working properly. The blower is fine on all speeds, but the temperature won't change. The air conditioning does work. We've had the thermostat fixed and … read more
Kevin
Kevin
Owner Kevins Mobile repair
Vocational, Technical or Trade Scho
308 satisfied customers
On a 2011 Jeep Grand Cherokee where is the thermostat
on a 2011 Jeep Grand Cherokee where is the thermostat located? .how do you replace it?… read more
Ron Z.
Ron Z.
- Jeep Tech -
Vocational, Technical or Trade Scho
629 satisfied customers
98 Jeep Wrangler: Cold air..flushed..the radiator and the heater core
98 Jeep Wrangler, no heat. Cold air works fine. I've replaced the thermostat, flushed the radiator and the heater core. Left some vinegar to soak in the core about 2 hours, then using the hose ran wat… read more
ricardo hohl
ricardo hohl
automotive instructor
Associate Degree
1,818 satisfied customers
I have a 2001 Jeep Grand Cherokee Laredo and my radiator fan
I have a 2001 Jeep Grand Cherokee Laredo and my radiator fan won't come on. I've replaced the fan relay, temperature sensor, thermostat, jumped the fan and it works, I've also put an extra ground on i… read more
Derrick
Derrick
Associate Degree
920 satisfied customers
Jeep Liberty Limited 2003 jeep liberty no heat ... replaced
2003 jeep liberty no heat ... replaced water pump and thermostat ... still no heat… read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x