Chrysler

Chrysler repair questions? Ask a mechanic for answers ASAP

Ask an Expert,
Get an Answer ASAP!

Chrysler PT Cruiser: 2001 PT Cruiser, mis-firing while cruising…

Customer Question
2001 PT Cruiser, mis-firing while...
2001 PT Cruiser, mis-firing while cruising at constant speed. Four engine codes showing: P1684, P320, P300 & P1391.
Identical problem summer of 2014. Replacing Cam Sensor and Crank Sensor failed to correct. A second garage said short in a wiring harness and problem disappeared. Now it's recurring again after 9 months.
Same garage now says the P1684 code means the TCM is failing, but that is an expensive repair and won't correct the problem if there's a short.
What's going on here?
Submitted: 2 years ago.Category: Chrysler
Show More
Show Less
Ask Your Own Chrysler Question
Answered in 8 hours by:
6/30/2015
Chrysler Mechanic: Chris (aka - Moose), Technician replied 2 years ago
Chris (aka - Moose)
Category: Chrysler
Satisfied Customers: 51,644
Experience: 16 years of experience
Verified
I am sorry for the delay in getting a response to you. Sometimes we get alot of customers and just can not keep up. Sometimes you just have to wait for the correct tech to login.Do you even still need help. Sometimes customers seek help elsewhere or figure it out on their own before we get to each and everyone.I am sure I can help a lot or a little at least something if you give me a chance and work with me. I am going to get an answer to you regardless if you reply or not sooner or later.If your concern is urgent reply and let me know and if you have anything more you think will help me, to help you, let me know. I work on here normally 3pm-3am central. Thanks Chris
Ask Your Own Chrysler Question
Customer reply replied 2 years ago
Yes I still need help and no I haven't yet got an answer to what the problem is. The car is running and though the mis-firing is annoying, my real concern is to find the source of the problem before I find myself with a dead engine on a freeway or stranded miles from home.
Chrysler Mechanic: Chris (aka - Moose), Technician replied 2 years ago
Do you need or have you done the diag steps for these codes?1684 just means the computer has recently seen a battery disconnect. So that can be poor battery connections or high resistance in the wire pins to the PCM. Do you have a diagnostic tool that can monitor the cam and crank sensors while running and carefully wiggling there wire harnesses? You want a excellent 5 star answer & I would like to be rated the same for providing it. Consider I don't know your skill level & I can't see, smell, hear, or touch the vehicle. It may take a few back and forth replies. Try your best to respond with good detail so I can do the same. I normally log in at 3pm and work late. A rating is required. Your rating me, what I type. I am not an employee of this website, nor have control over the fees or the time it took to get a response. If you rate negative or not at all you still paid, but I get nothing. I want you pleased with me and my efforts, so let me know if your experience here has come up short.Thanks Chris
Ask Your Own Chrysler Question
Customer reply replied 2 years ago
I have no tools and do not work on the car myself, but I've wasted a lot of money watching the mechanics I pay just chase their tails on this problem .... I need to be able to take it to someone and give them a strong lead so that I can get a reasonable repair.Last summer I paid for replacement of Cam and Crank sensors that was unnecessary and did NOT solve the problem. Now the one mechanic who did manage to make the problem go away for 9 months is saying that the P1684 code means that my computer is failing. There may be some basis for his saying that. After much googling of engine codes, I came across a page that says there could be several possible causes for the P1684 code (http://engine.codes.com/p1684_dodge.html)
1. Battery was recently disconnnected (but in my case, it was NOT)
2. Transmission Control Module (TCM) replaced or disconnected (NOT)
3. Faulty Transmission Control Module (TCM) (how to determine/ diagnose this?)
4. Transmission Control Module (TCM) harness is open or shorted (candidate cause?)
5. Transmission Control Module (TCM) circuit poor electrical connection (candidate cause?)But the above is from a Dodge engine page. I believe the PT Cruiser may share the same transmission as the Dodge Neon, but I need to know if the above 5 possibilities also apply to my PT. Can you verify that?Also, how to check for possibilities 3, 4 and 5 above, since numbers 1 and 2 do not apply.AND, what do the three other engine codes (P320, P300, and P1391) tell you about the problem?Thanks for your knowledge on the above.Bob Randall
Customer reply replied 2 years ago
The causes I mentioned relate to the TCM (Transmission Control Module). How is the TCM related to the PCM (Powertrain Control Module), or are they the same thing by different names?
Chrysler Mechanic: Chris (aka - Moose), Technician replied 2 years ago
Being that your not able to do diagnostics, what from me would help. Can you list out what questions you would like me to answer based on these codes. We can talk about the codes or what you read on google but none of that will solve the issues. Diag needs to be done.
Ask Your Own Chrysler Question
Was this answer helpful?
Ask Chris (aka - Moose) Your Own Question
Chris (aka - Moose)
Chris (aka - Moose)
Chris (aka - Moose), Technician
Category: Chrysler
Satisfied Customers: 51,644
51,644 Satisfied Customers
Experience: 16 years of experience

Chris (aka - Moose) 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:

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

I AM VERY GLAD THAT I TOOK A CHANCE ON YOUR PROBLEM SOLVING SKILLS. I WAS SUCCESSFUL IN REPLACING THE FUEL PUMP. MY TRUCK RUNS LIKE A CLOCK. IT RUNS LIKE THE DAY I BOUGHT IT. NO LUNGING FORWARD, THE TURBO REACTS THE SECOND I STOMP ON THE GAS, AND IT HAS A LOT MORE POWER AND EVEN SOUNDS BETTER TO ME. IT SAVED ABOUT $500.00 BY DOING THE WORK MYSELF. I GIVE YOU ALL THE CREDIT FOR YOUR DIAGNOSING THE PROBLEM, JUST FROM THE SYMPTONS I GAVE YOU OVER THE e MAIL. I WILL USE YOUR WEB SITE AGAIN AND REFER MY FRIENDS. THANKS SO MUCH FOR THE HELP.

TOM WHITTAKERUSA

Just a quick line to tell you how pleased I am to have my brakes working properly after all this time. Your answer was what I needed. I would certainly recommend you highly. God bless!

Rev. Jerry BaysingerHolts Summit, Mo

I recently asked a question about my 2005 dodge ram, and I just wanted to let my Expert know that he hit the nail squarely on the head with his answer. I wanted to thank him again.

GregPittsburgh, PA

Just a quick line to tell you how pleased I am to have my brakes working properly after all this time. Your answer was what I needed. I would certainly recommend you highly. God bless!

JerryHolts Summit, MO

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

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

< Previous | Next >

Meet the Experts:

Don - Mo Lurch

Don - Mo Lurch

Aftermarket & Factory Electronics

527 satisfied customers

Cert. Chrysler Warnty, Heavy Line Mech, Mobile Electronics. Sales, Installation & Repair for 30 years

Chris (aka - Moose)

Chris (aka - Moose)

Technician

51,644 satisfied customers

16 years of experience

Paul M ASE Master

Paul M ASE Master

ASE Master Tech

118 satisfied customers

ASE Master Tech 20+ Years

Ivan

Ivan

ASE Certified Master Technician

56 satisfied customers

ASE Master Tech w/ 20+ years in the field. Self employed for 9 years. Member of AUTOLAB radio show.

Amedee

Amedee

Chrysler Technician

899 satisfied customers

ASE certified Technician advanced level specialist. Wisconsin certified emissions state inspector

Jerry

Jerry

Master Mechanic

696 satisfied customers

ASE Master tech. 30+ years mechanic, shop forman, service manager

Ron

Ron

ASE Certified Technician

373 satisfied customers

#@ years in the Automotive repair field.

< Previous | Next >

Related Chrysler Questions
Chrysler PT Cruiser: The "malfunction indicator light" icon
The "malfunction indicator light" icon comes on as soon as I start the car. It's been on for many weeks and nothing is wrong with the car. It did not come back on for one day after the battery died la… read more
Ron Z.
Ron Z.
Vocational, Technical or Trade Scho
2 satisfied customers
Check engine came on. Trouble code P1698. Replaced TCM.
Check engine came on. Trouble code P1698. Replaced TCM. Did not correct. Still remains in second gear and trouble light remains. 2000 Chrysler Concorde.… read more
Mopar_Certified
Mopar_Certified
Vocational, Technical or Trade Scho
5 satisfied customers
Chrysler Pacifica service immobilizer light is on 2006 pacificia
service immobilizer light is on 2006 pacificia car wont turn over, car was 1 quart low on oil and oil was replaced . waited an hour still wont turn over… read more
ricardo hohl
ricardo hohl
automotive instructor
Associate Degree
1,818 satisfied customers
We would like to change the transmission filter on a 2000
We would like to change the transmission filter on a 2000 Chrysler Sebring. We also need to know the location of the filter. Can you please help? … read more
Expert
Expert
29 satisfied customers
Transmission. ???? Just naught the vehicle 2 months ago.
We are getting some fluid but all reports say if you fill it to much we can destroy transmission… read more
Mopar_Certified
Mopar_Certified
Vocational, Technical or Trade Scho
5 satisfied customers
Key battery message keeps coming on after changing battery
key battery message keeps coming on after changing battery in key fob … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
Battery lite came on. Battery is ok. 2011. Change aternater.
battery lite came on JA: Have you tested the battery? Have you tried testing the alternator? Customer: battery is ok JA: What is the model/year of your Chrysler? Customer: 2011 JA: Are you fixing your… read more
garrtim
garrtim
SERVICE MANAGER
1,831 satisfied customers
It has the light on that says the transmission is in safe
It has the light on that says the transmission is in safe mode, what could cause that? It is a 2004 Pacifica, 3.5l awd. … read more
garrtim
garrtim
SERVICE MANAGER
1,831 satisfied customers
The transmission is not shifting. The car is a 2010, no
The transmission is not shifting JA: How old is the transmission? Have you noticed any leaking? Customer: The car is a 2010, no leaking JA: What is the model of your '10 Chrysler? Customer: Sebring Li… read more
HDGENE
HDGENE
Master Technician/Lead Technician
Associate Degree
2,835 satisfied customers
Transmission is in limp mode engine has momentary high rev
transmission is in limp mode engine has momentary high rev at startup all gears light up at the same time on the dash … read more
eric remington
eric remington
FORMER SHOP OWNER/TECHNICIAN/INSPECTOR
associates degree
580 satisfied customers
2016 CHRYSLER TOWN/C ENGINE WON'T SHUT OFF AND TRANSMISSION
2016 CHRYSLER TOWN/C ENGINE WON'T SHUT OFF AND TRANSMISSION IS LOCKED, … read more
sprinkles08
sprinkles08
Technician
High School or GED
11 satisfied customers
2007 Pacifica, Battery tests good 12.4V, ground to engine is
2007 Pacifica, Battery tests good 12.4V, ground to engine is good, new battery terminals. Car will turn over weakly then clicks. I tied to jump from other vehicles with the same weak turnover and no s… read more
jim
jim
Vocational, Technical or Trade Scho
702 satisfied customers
Chrysler Pacifica I need to know where the gas tank air vent
I need to know where the gas tank air vent filter is located and how to replace it. I asked an earlier question and made the mistake of not saying AIR VENT just filter. If it requires the removal of t… read more
SuperDave
SuperDave
auto technician
101 college hrs
867 satisfied customers
Dodge Caravan, transmission stuck in second gear.
Dodge Caravan, transmission stuck in second gear.… read more
tim37857
tim37857
Mechanic
High School or GED
71 satisfied customers
Ground wire..the battery be safely re-routed past the wiring harness &
This is my first time using your site, so I am not sure if my question is in the process of being answered or not, so I'll do this again since it came back to this screen.... My question is, can the g… read more
Dodgerench
Dodgerench
Driveability Tech
Vocational, Technical or Trade Scho
409 satisfied customers
1. I have two code PO700 & PO846 can you please diagnosis what these code mean. 2.Al
1. I have two code PO700 & PO846 can you please diagnosis what these code mean. 2.Also there is a green connector cable with 4 wiring (black yellow, purple red, purple white, & black green) I cannot f… read more
heavy_chevy_396
heavy_chevy_396
Vocational, Technical or Trade Scho
2,518 satisfied customers
Chrysler Concorde LXi how do you disconect the factory security
how do you disconect the factory security system to install a new system on a 2000 concorde… read more
Expert
Expert
29 satisfied customers
I have an issue when trying to start my 99 Chrysler 300M.
I have an issue when trying to start my 99 Chrysler 300M. I purchased it used and do not ever remember the steering wheel locking when the key is removed. My problem is when I start the car it will no… read more
Vladgmru
Vladgmru
Automotive Electrician
Vocational, Technical or Trade Scho
1,586 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