Dodge

Dodge Repair Questions? Ask a Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Dodge
This answer was rated:

2001 Dodge RAM 1500 4x4: that spits and sputters when towing

I have a 2001 Dodge...

I have a 2001 Dodge Ram 1500 4x4 that runs and drives great when not towing my boat approx. 3500 lbs. When towing after approx. 15-20 minutes it spits, sputters pings and knocks. Essentially no horse power at all. No check engine light normally when this occurs.  I have seen p1391 intermittent loss of ckp code. This truck came with a trans cooler from the factory. This appears to be related to temperature related, since I can let it cool down and it runs fine, I have driven when spitting and sputtering forcing it to run and it will get better after a while. I've had this in several shops and been diagnosed and "repaired" I even had a mechanic ride with me, diagnosed the problem to be o2 sensors. I've replaced all ignition system components (crank sensor, ignition pickup, cap, rotor, wires, entire exhaust system including catalytic converter). Still the truck runs great when not towing, but not reliably when towing. Any thoughts?

Show More
Show Less
Ask Your Own Dodge Question
Answered in 6 hours by:
7/3/2013
Amedee
Amedee, Dodge Technician
Category: Dodge
Satisfied Customers: 26,800
Experience: ASE certified tech advanced level specialist. Wisconsin certified emissions state inspector
Verified

AMEDEE :

Hello and welcome to Just Answer! My name is XXXXX XXXXX I can assist you with your question.

AMEDEE :

Please allow me to ask a few questions in order to better help resolve your concern.

AMEDEE :

Are you saying that the distributor was replaced?

Customer:

No the distributor cap, rotor, cam position sensor, plugs and wires - please note this truck runs great when not towing.

AMEDEE :

Thank you for clearing that up

AMEDEE :

The cam sensor is located inside the distributor

AMEDEE :

Are you saying that the distributor was removed and the sensor inside was replaced

Customer:

under the rotor yes

AMEDEE :

and then the distributor was then re installed?

Customer:

no in the 2001 5.2 (318) its under the rotor and serviceable without removing and replacing the distributor

AMEDEE :

And this sensor was replaced right?

Customer:

yes - by myself and verified by ASE certified mech - stating the issue was caused by induction caused by the wire wrapped around a spark plug wire - still not the issue

AMEDEE :

Thank you for that information

AMEDEE :

Is this code present in the computer when the engine runs good (not towing anything)?

Customer:

no code only reappears intermittently when misfiring(spitting and sputtering) when towing

AMEDEE :

Got it! Thanks!

Customer:

one other note this does not seem to happen in cooler outside temperatures (doesn't happen in the winter)

AMEDEE :

Excellent!

AMEDEE :

Thanks for the detail

Customer:

np

AMEDEE :

Were these signals from these two sensors checked?

AMEDEE :

If so, how?

Customer:

are you talking about the o2 sensors?

AMEDEE :

no

AMEDEE :

cam and crank sensors

Customer:

I did not

Customer:

no testing equip just replaced

AMEDEE :

Ok, how do you plan on diagnosing this code and running issue then?

Customer:

good question - since this only happens while towing - how can you troubleshoot? If I stop unhook trailer - issue is gone

Customer:

I had ase mech ride with while his computer was connected - he came up with replace both 02 sensors

AMEDEE :

And do you know what lead him to this conclusion?

Customer:

rich indication when actually lean and vice versa

AMEDEE :

hhmm..

AMEDEE :

ok

AMEDEE :

Well, I have never heard of bad o2 sensors causing a P1391 code

AMEDEE :

I am not saying that your o2 sensors are good, I am just saying..

Customer:

one quick note - if I stop shut off engine for 10-15 minutes and restart runs fine

Customer:

even if I continue spitting and sputtering down road it does get better eventually

AMEDEE :

Was the distributor sync checked?

Customer:

can't say that it was

AMEDEE :

This would be the first thing that needs to be checked WHEN the problem is acting up

AMEDEE :

It can be checked using a scan tool

AMEDEE :

It should be at 0 degrees

AMEDEE :

plus or minus two degrees

Customer:

I have a craftsman scan tool I don't think it has that capability

AMEDEE :

I agree

AMEDEE :

P1391-INTERMITTENT LOSS OF CMP OR CKP
When Monitored: Engine running or cranking.
Set Condition: When the failure counter reaches 20 for 2 consecutive trips.
POSSIBLE CAUSES
CMP SENSOR OUT OF SYNC
DAMAGED TONE WHEEL/FLEX PLATE (CRANKSHAFT)
DAMAGED TONE WHEEL/PULSE RING (CAMSHAFT)
IRREGULAR LAB SCOPE PATTERN OF CMP SIGNAL
INTERMITTENT CKP SIGNAL LOSS WHEN WIRING IS WIGGLED
IRREGULAR LAB SCOPE PATTERN OF CKP SIGNAL
WIRING HARNESS INTERMITTENT
INTERMITTENT CMP SIGNAL LOSS WHEN WIRING IS WIGGLED
SENSOR CONNECTOR/WIRING
SENSOR CONNECTOR/WIRING
CAMSHAFT POSITION SENSOR
CKP SENSOR CONNECTOR/WIRING
CRANKSHAFT POSITION SENSOR

Customer:

shouldn't this occur all times not with respect to towing?

AMEDEE :

no

Customer:

is it possible for the crankshaft end play to be out of tolerance causing movement when under heavy load?

AMEDEE :

It sure could! but I have never come across that causing this code.

Customer:

honestly the code doesn't always show when spitting and sputtering

AMEDEE :

Chances are it wont

Customer:

137k miles on this truck

AMEDEE :

yeah, that is a lot

AMEDEE :

Your best bet would be to check the distributor sync when this happens.

Customer:

for a 318 that should be just broken in

AMEDEE :

and if needed, use a lab scope to check these signals when the engine runs rough

Customer:

ok I will do this, thank you

AMEDEE :

Your welcome. Are you happy with my assistance today?

Customer:

yes

AMEDEE :

Excellent! I am glad I can help!

AMEDEE :

One thing before you go

AMEDEE :

I just ask that you please rate my answer as "excellent service" for assisting you today

Customer:

ok will do

AMEDEE :

You should see the rating system towards the bottom of the page

AMEDEE :

It has been a pleasure working with you today

Amedee
Amedee, Dodge Technician
Category: Dodge
Satisfied Customers: 26,800
Experience: ASE certified tech advanced level specialist. Wisconsin certified emissions state inspector
Verified
Amedee and 87 other Dodge Specialists are ready to help you
Ask your own question now
Ask Amedee Your Own Question
Amedee
Amedee
Amedee, Dodge Technician
Category: Dodge
Satisfied Customers: 26,800
26,800 Satisfied Customers
Experience: ASE certified tech advanced level specialist. Wisconsin certified emissions state inspector

Amedee 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 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

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

< Previous | Next >

Meet the Experts:

Jerry

Jerry

Master Mechanic

1,754 satisfied customers

ASE Master tech, 30 years exp. troubleshooter, driveability tech

Chris

Chris

Shop Foreman

6,613 satisfied customers

Dodge/Cummins and Chrysler Certified Master Tech

Mopar Certified

Mopar Certified

Dodge Technician

5,931 satisfied customers

24 Year Chrysler/Dodge Certified Specialist

moparfl

moparfl

ASE Certified Technician

3,292 satisfied customers

ASE Master Tech Gold level Chrysler Status 30 years dealership exp

Dodgerench

Dodgerench

ASE Certified Technician

2,809 satisfied customers

30+ years Dodge/Chrysler exp., ASE Master with L1 certification. Driveability/ combustion specialist

Tim Mohr

Tim Mohr

ASE MASTER TECH

2,298 satisfied customers

30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL

Don - Mo Lurch

Don - Mo Lurch

Aftermarket & Factory Electronics

1,562 satisfied customers

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

< Previous | Next >

Related Dodge Questions
Driving down the interstate in my 97 Dodge Ram 1500 and
Driving down the interstate in my 97 Dodge Ram 1500 and suddenly, it is revving but power is dropping. Wouldn't go over 20 mph or so after that. What's possibly wrong?suddenly… read more
Amedee
Amedee
Dodge Technician
26,800 satisfied customers
I have a 2005 dodge ram 1500 with a 4.7L V8 with a misfire.
I have a 2005 dodge ram 1500 with a 4.7L V8 with a misfire. … read more
kalamykid
kalamykid
Pactor automotive
Vocational, Technical or Trade Scho
97 satisfied customers
Miss fire # 7 low compression. 2002 ram 1500. Plugs, wire,
miss fire # 7 low compression JA: What is the model/year of your Dodge? Customer: 2002 ram 1500 JA: Are you fixing your Ram 1500 yourself? What have you tried so far? Customer: plugs, wire, injector J… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
2002 Dodge Ram 1500 light issue. Tail light on one side not
2002 Dodge Ram 1500 light issue. Tail light on one side not working. I had a problem with headlights and tail lights working sporadically. I have replaced all sockets, pcm, light control module, light… read more
Amedee
Amedee
Dodge Technician
26,800 satisfied customers
2004 dodge ram 1500 hemi won't start. No fire to plug.
2004 dodge ram 1500 hemi won't start. No fire to plug. Changed the camshaft position sensor … read more
tim37857
tim37857
Mechanic
High School or GED
71 satisfied customers
I have a 4x4 06 dodge ram 1500 and can not find where the
I have a 4x4 06 dodge ram 1500 and can not find where the abs plugs in on the front passenger side … read more
Amedee
Amedee
Dodge Technician
26,800 satisfied customers
I replaced the ignition switch on my 04 Ram 1500 due to
I replaced the ignition switch on my 04 Ram 1500 due to intermittent fan operation. Worked perfectly for about 4 months. Fan stopped working 2 days ago, not even intermittent operation. Fuse is good. … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
3,921 satisfied customers
I have a 2000 dodge ram 1500 the transfer case is out I
I have a 2000 dodge ram 1500 the transfer case is out I picked up a 1999 dodge durango transfer case the only difference I see is my truck has a vacuum diafram and the Durango has a electric one can I… read more
kalamykid
kalamykid
Pactor automotive
Vocational, Technical or Trade Scho
97 satisfied customers
Have a 2008 Ram 1500, the CEL is on most of the time. Has
Have a 2008 Ram 1500, the CEL is on most of the time. Has been scanned and some "repairs done. Issue is that the factory installed command start with this light on. It starts but shuts down after 5 se… read more
Mopar Certified
Mopar Certified
Dodge Technician
Vocational, Technical or Trade Scho
5,931 satisfied customers
09 ram 1500 4x2 183227.0miles on orig trans.. never had a
09 ram 1500 4x2 183227.0miles on orig trans.. never had a problem serviced regularly. trans is stuck in 4th gear. what is the fix??? … read more
eauto
eauto
self employed
High School or GED
74 satisfied customers
08 ram 1500, will act like its turning over but wont start.
08 ram 1500, will act like its turning over but wont start … read more
Amedee
Amedee
Dodge Technician
26,800 satisfied customers
I drive a dodge ram 1500. In the mornings especially cold
I drive a dodge ram 1500. In the mornings especially cold ones the truck requires a lot of throttle to start moving. At the first couple of stops it dies. At times you can prevent it by removing press… read more
Chris (aka - Moose)
Chris (aka - Moose)
Vocational, Technical or Trade Scho
108 satisfied customers
Dodge ram 1500 wiper arm are in the middle of the windshield
dodge ram 1500 wiper arm are in the middle of the windshield when they are in parking position and they goes down before going up. Fortunately they are operating well but is bad to having them in the … read more
Howard Duncan
Howard Duncan
Business Owner
Vocational, Technical or Trade Scho
227 satisfied customers
Locked key fob in dodge ram 1500 with motor running. But,
locked key fob in dodge ram 1500 with motor running … read more
Chris
Chris
Shop Foreman
6,613 satisfied customers
I have a 2002 dodge ram 1500 that was in a front end
i have a 2002 dodge ram 1500 that was in a front end accident but airbags weren't deployed.Body shop repaired truck but now I have a passenger airbag code that i cannot remove.The truck has no passeng… read more
kalamykid
kalamykid
Pactor automotive
Vocational, Technical or Trade Scho
97 satisfied customers
Got a03 Dodge ram 1500 changed platum on it and now can't
Got a03 Dodge ram 1500 changed platum on it and now can't get it to run unless I pull too spark plugs out got all new sencers and water pump good oil pursure good compression and fuel pressure … read more
Amedee
Amedee
Dodge Technician
26,800 satisfied customers
I have an 03 ram 1500 with a 4.7 in it, I have a no spark
I have an 03 ram 1500 with a 4.7 in it, I have a no spark condition. … read more
eauto
eauto
self employed
High School or GED
74 satisfied customers
Abs on ram 1500 2014 activating at slow speeds, no and no,
abs on ram 1500 2014 activating at slow speeds JA: Have you checked the brake fluid? And have the brakes been squeaking? Customer: no and no JA: Are you fixing your Ram 1500 yourself? What have you tr… read more
camerontech
camerontech
20 year experience diagnostic technician
class a
541 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