Dodge

Dodge Repair Questions? Ask a Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Dodge

99 durango: wont cold start..runs fine..new intake gasket,tune-..iac

Customer Question
99 durango-won't cold start,holding pedal...
99 durango-won't cold start,holding pedal down allows start,but no idle unless kept at 1000 or higher.After 5 to 7 mins. of trying engine eventually starts and runs fine for rest of day. new batt,new intake gasket,tune-up, cleaned IAC motor&fuel presure
Submitted: 8 years ago.Category: Dodge
Show More
Show Less
Ask Your Own Dodge Question
Answered in 44 minutes by:
3/26/2009
Dodge Mechanic: Dodgerench, ASE Certified Technician replied 8 years ago
Dodgerench
Dodgerench, ASE Certified Technician
Category: Dodge
Satisfied Customers: 3,412
Experience: 30+ years Dodge/Chrysler exp., ASE Master with L1 certification. Driveability/ combustion specialist
Verified

HiCustomer welcome to Just Answer!.

 

Do you ever see a CHECK ENGINE lamp illumination while driving?

Have you had the engine scanned for codes by chance?

Did a low or dead battery just precede the onset of this problem?

 

Talk in a few,

Ed

Ask Your Own Dodge Question
Customer reply replied 8 years ago
COLD START PROBLEM OCCURED 2 DAYS AFTER REPLACING INTAKE MAN. GASKET. NO CODES FOUND . HAD THE EXACT SAME PROBLEM BACK IN JULY BUT UNDER A HOT START[ AFTER RUNNING AN HOUR OR TWO]. i DISCOVERED BY CHECKING WITH A VOM THAT BAT. VOLTAGE DROPPED BELOW 12 VOLTS DURING CRANKING CAUSING ECM TO RESET. NEW BATTERY SOLVED THIS PROBLEM
Dodge Mechanic: Dodgerench, ASE Certified Technician replied 8 years ago
Thanks.
That's a significant discovery you made. Low system voltage allows the PCM (engine controller) to lose its idle air control motor step count. When this calibration is lost, it makes it tough for the PCM to control engine idle with any real certainty.

It may have happened to you again, but for different reasons this time. We'll see.

I'd like to know if the IAC motor has any life left in it first. They're an electro-mechanical unit, using a worm drive within the body of the unit to extend and retract the pintle that I'm sure you're familiar with. If the IAC fails to follow a PCM command for any reason, the step count will be lost, either incrementally or all at once.

Let's try another relearn procedure to see if idle control is restored immediately. Disconnect the battery for about 30 seconds, reconnect and then just roll the key on.

Don't crank the engine immediately, as this is the time when the PCM is attempting a relearn. Give it five seconds, then hit the key. If it starts, flares, then settles down (an improvement), you may need a new IAC motor. Time will tell as the PCM either holds the step count and idle remains strong, or it slips back to where you were.

There is also a software update to improve IAC step count retention for your PCM, but it may already have that software... hard telling.

Give this a try first and let me know how it goes. It may only be the first step, so there's no need to click the accept button just yet.

Talk in a bit,
Ed
Ask Your Own Dodge Question
Customer reply replied 8 years ago
Just did what you recomended,and she started fine,not muchof a flare but car was already driven to wrk. Temp was much colder on morns. of no start,been warmer since and started fine, When no start occurs again would repeating the relearn procedure you last described tell us anything if she immediatly starts.
Dodge Mechanic: Dodgerench, ASE Certified Technician replied 8 years ago

Sounds good, j. If there's anything I have... it's time. Let's get it right.

 

Talk later,

Ed

Ask Your Own Dodge Question
Customer reply replied 8 years ago

Started first time this morning,no flare, dropped to normal idle ,temp above 40 degrees.

I DROVE LESS THAN A MILE AND ENGINE DIED ,FIRST TIME THIS HAPPENED ,DIDN'T HAVE WRENCH TO DISCONECT BATT TO SEE IF LAST SUGESTION MATTERED[IAC MOTOR RELEARN] CAR STARTED AFTER A FEW MINUTES AND RAN FINE.

Dodge Mechanic: Dodgerench, ASE Certified Technician replied 8 years ago

That sounds like a different problem, j! I'm not liking the sound of that... what you've been dealing with so far has always been a "nuisance"-type stall, right? One where the engine will always restart, but won't hold an idle?

 

Ed

Ask Your Own Dodge Question
Customer reply replied 8 years ago

YES, ENGINE WOULD RESTART JUST NO IDLE, WHAT HAPPENED THIS MORNING WAS A FIRST,EVEN 8 MONTHS AGO WHEN THE RESTART PROBLEM OCCURED UNDER HOT RESTART[new batt.] SHE NEVER STALLED, ONCE RUNNING. FYI- WHEN NOT IDLEING, IF I RESTART IN NEUTRAL AND IMMEDIATLY DROP INTO DRIVE AND PULL AWAY PROBLEM SEEMS TO CLEAR UP INSTANTLY.

Dodge Mechanic: Dodgerench, ASE Certified Technician replied 8 years ago

Did you happen to notice a NO BUS alert in the odometer while it was a no-start?

 

Ed

Ask Your Own Dodge Question
Customer reply replied 8 years ago
NEVER SAW NO BUSS ALERT,I'VE BEEN TOLD TO LOOK FOR THIS ALREADY,
Dodge Mechanic: Dodgerench, ASE Certified Technician replied 8 years ago

Do you have a CHECK ENGINE lamp illumination now since the stalling event?

Ask Your Own Dodge Question
Customer reply replied 8 years ago
NO
Dodge Mechanic: Dodgerench, ASE Certified Technician replied 8 years ago

It's way early to say you've got a PCM failure in the works, but it's not out of the question, j. If you have a 5.9 engine with the 56040147A# XXXXX a hot engine stall like what you'd seen isn't at all unusual. If it's the PCM, it's gonna do it again, so you might as well give it every opportunity while you're home and safe. Start the engine and let it idle with the A/C on for a half hour or so with the hood down. Let it get good and hot underhood and see what happens.

 

Most problems that cause a stall like what you had will leave a code behind and the CHECK ENGINE lamp would be on afterward. But if the PCM takes a short nap, it wakes up with no realization anything ever happened except that it's lost its internal memory... all adaptives and any stored codes will be lost.

 

So what I'd recommend at this point is to set a code of your own choosing to turn the light on, get the engine to stall and see if the light disappears after the engine wakes back up. It's like putting bait in a trap to see if it's still there after the door shuts.

 

As much as I hate to say it, your idle problem may be related to what you're seeing now. I see an awful lot of these PCMs with P0505 codes set, which turns out to be an internal IAC circuit failure.

 

Let me know what you find.

Ed

Ask Your Own Dodge Question
Ask Dodgerench Your Own Question
Dodgerench
Dodgerench
Dodgerench, ASE Certified Technician
Category: Dodge
Satisfied Customers: 3,412
3,412 Satisfied Customers
Experience: 30+ years Dodge/Chrysler exp., ASE Master with L1 certification. Driveability/ combustion specialist

Dodgerench 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

6,753 satisfied customers

Dodge/Cummins and Chrysler Certified Master Tech

Mopar Certified

Mopar Certified

Dodge Technician

5,939 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

3,412 satisfied customers

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

Tim Mohr

Tim Mohr

ASE MASTER TECH

2,322 satisfied customers

30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL

Don - Mo Lurch

Don - Mo Lurch

Aftermarket & Factory Electronics

1,568 satisfied customers

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

< Previous | Next >

Related Dodge Questions
I installed a new battery and alternator after the battery
I installed a new battery and alternator after the battery was discharging and battery instrument light came on, and everything was fine. When I went to start it a week later, there was no electrical … read more
Mechanic01
Mechanic01
1,700 satisfied customers
Not starting. get clicking sound under the battery. lights
not starting. get clicking sound under the battery. lights come on inside but go out if try to start. … read more
Tim Mohr
Tim Mohr
ASE MASTER TECH
Master's Degree
2,322 satisfied customers
Randomly the battery goes dead and sometimes when the van is
randomly the battery goes dead and sometimes when the van is off and key out of car the lights flash windows go down unlocks the doors its like it has a mind of its own … read more
Chris (aka - Moose)
Chris (aka - Moose)
Vocational, Technical or Trade Scho
108 satisfied customers
What is the battery voltage regulator supposed to read at
What is the battery voltage regulator supposed to read at the electrical connection going to the alternator? … read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
Just replaced the battery in the dodge ram truck, still
Just replaced the battery in the dodge ram truck , still won't start, asking for serial code. Tried using the key in the driver door but still doesn't work. … read more
sprinkles08
sprinkles08
Technician
High School or GED
11 satisfied customers
2006 Dodge Charger accidently put the battery on backwards
2006 Dodge Charger accidently put the battery on backwards now have no turn signals, horn, wipers or side mirror movement. I bet it's a relay any ideas which one it might be ?… read more
heavy_chevy_396
heavy_chevy_396
Vocational, Technical or Trade Scho
2,518 satisfied customers
It wont start the battery is ghood there is a clicking noise
it wont start the battery is ghood there is a clicking noise down by the shifter … read more
Mechanic01
Mechanic01
1,700 satisfied customers
The battery (new in October is completely dead and will not
The battery (new in October is completely dead and will not jump. It just clicks … read more
roy
roy
Associate Degree
3 satisfied customers
Battery light is on but the alternator bench tests fine. New
battery light is on but the alternator bench tests fine. New battery. Thoughts? … read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
Alternator not charging battery or producing electricity to
Alternator not charging battery or producing electricity to run truck have changed out alternator battery power control module serpentine belt serpentine belt tensioner pulley still not charging alter… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
The check gauges light comes on and the battery gauge goes
the check gauges light comes on and the battery gauge goes to low. tonight, while driving, the lights when dim, the radio stopped working, all of the gauges starting blinking on and off. Is it the alt… read more
David Craig
David Craig
OWNER/MECHANIC
Associates
4,403 satisfied customers
No Crank no Start problem, Starter is good battery is good
No Crank no Start problem , Starter is good battery is good problem does not occur all the time … read more
Chris (aka - Moose)
Chris (aka - Moose)
Vocational, Technical or Trade Scho
108 satisfied customers
Won't start. I checked battery. It's ok. disconnected
won't start. I checked battery. It's ok. disconnected battery ground cleaned contacts and cleaned battery posts. was just getting clicking when turning on ignition. but after cleaning ground connector… read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
2000 Dodge 3500 battery draining overnight. Trying to
2000 Dodge 3500 battery draining overnight. Trying to determine the problem, when both batteries are hooked up there is a current draw of about .26 amps. If I isolate each battery, each individual bat… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
The battery warning light comes on but the battery, cables,
The battery warning light comes on but the battery, cables, alternator are fine and it charges properly under load. … read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
The battery is fine, towed it to my mechanic and it's not
the battery is fine, towed it to my mechanic and it's not the starter. Bought a new key from Dodge dealership about 2 months ago. All the dash lights come on but the truck won't turn over! … read more
Jaybird61
Jaybird61
Master Automotive Mechanic
2,230 satisfied customers
Battery keeps dying. 99. No my in law we changed the battery
No my in law we changed the battery 3 times took alternator to autozone said it was good … read more
HDGENE
HDGENE
Master Technician/Lead Technician
Associate Degree
2,835 satisfied customers
The battery light comes on. The battery is new the
The battery light comes on. The battery is new the alternator is new and all fuses are good … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
4,403 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