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HelicopterOff Topics › Car problem...Help me get out of this stall.
09-04-2009 12:04 AM  8 years agoPost 1
702nitro

rrKey Veteran

Las Vegas, NV

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This morning car wouldn't start. I kept trying and it eventually did.
On the way to work, made two stops to take care of business. On the two same issue, but with persistence it started.

On my lunch break, took it to Auto Zone and go figure, my suspicions were right--that it was a bad battery. Now that's all switched, car now starts, but now have issues keeping the engine on.

The only way to keep it running is to rev it up long enough, then the engine will idle happily to the point where it doesn't stall.

How does changing to a new battery affect engine idle??????????????

NOTE: I had an issue like this about a year ago. I had the fuel pump replaced, and had the fuel pressure checked out okay.

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09-04-2009 12:45 AM  8 years agoPost 2
Andrew_S

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Gaston, South Carolina

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What year and model car? Most of the older vehicles have to relearn their memory of how to run. How old was the old battery? It's possible the alternator could have killed it, and that also can cause the symptoms of what you are seeing now.

Drewskie

www.congareeflyersinc.com

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09-04-2009 12:48 AM  8 years agoPost 3
zaw

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Lebanon, NH - USA

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Probably bad or dirty Idler Solenoid Valve.

ಠ_ಠ HBK2 built with inexpensive parts! ٩๏̯͡๏)۶ Gaui425

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09-04-2009 12:59 AM  8 years agoPost 4
702nitro

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Las Vegas, NV

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94 Jeep G-Cherokee

Battery was about 2.5 yrs old
It's possible the alternator could have killed it, and that also can cause the symptoms of what you are seeing now.
Hmmmm..I hope not! If I disconnect the positive terminal while the engine is running and if electrics still on, will that tell me that my alternator is still good?

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09-04-2009 01:12 AM  8 years agoPost 5
Brokenlink

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Oakdale

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Check the alternator.

Jamie Griffith

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09-04-2009 01:13 AM  8 years agoPost 6
Andrew_S

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Gaston, South Carolina

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NO DONT DO THAT.......You could fry the computer....Autozone or someplace like that can check it for you for free.

Drewskie

www.congareeflyersinc.com

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09-04-2009 01:22 AM  8 years agoPost 7
twitch

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Las Vegas

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This problem could have been on its way to the surface before your battery went and trying to start it could have brought it to the top. Change your fuel filter and should be good to go

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09-04-2009 02:08 AM  8 years agoPost 8
Brokenlink

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Oakdale

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Change your fuel filter and you should be good to go.
Huh?,check the tire pressure also,that should help about as much.

Jamie Griffith

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09-04-2009 02:16 AM  8 years agoPost 9
DougsRC

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Mass.

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How does changing to a new battery affect engine idle??????????????
It can affect the cars computer. When power is denied to the "computer brain" sometimes it has to "recalibrate" itself to run correctly--idle---and so on. The same thing happened on my Dads car when we changed the bat. It took a week before it ran good again.

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09-04-2009 02:43 AM  8 years agoPost 10
twitch

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Las Vegas

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not to sound like a jerk but Im ASE certified and wouldnt blow smoke (nonsmoker), the fuel filter would be the place to start if problem persists. I say this because his ride between work and home is quite long thru town and should be more then enough to recalibrate his system. Fuel Mapping takes only minutes for the computer to accomplish.

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09-04-2009 02:54 AM  8 years agoPost 11
bowman

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Rumson NJ

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I agree.

The cars on board comp, relies on info from all its sensors. it sets perimeters based on continued feedback.

when a batt dies, it is one of the ways in which a computer is wiped clean of, all that stored information.

the result is a zhitty almost not wanting to run engine. in particular the throtle body and Idle air control motor unit will suffer the most.

it would be a good Idea to clean it up, that most times will help with the not idling but, all that info has to be relearned by the computer.

most cases after a batt install, you turn ther ignition to on, for a few minuts and all the basic info is restored. then a few driven miles should set all the perimeters back to more or less normal.

Believe it or not a computer being wiped clean will do this, makes it look as if all kinds other zhit is wrong with the car.

I certainly was in the right! .....( toecutter at the spot) Phalanxman 6

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09-04-2009 02:55 AM  8 years agoPost 12
bubba01

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NE Pennsylvania

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Chrysler Product

If you had no driveability issue before the battery failure....No worries...happens to our fleet vehicles all the time when the drivers run the batteries flat.

Having a sizeable fleet of Chrysler/Dodge vehicles and 4 Jeeps in my garage, I can assure you that the comments about the computer needing to "relearn" are correct. Start the vehicle and take it on a short drive...problem will be solved. As an alternative, you can start the vehicle and moderate the throttle settings in park for a couple of minutes and it will also "relearn".


Cop: Sir, have you been drinking? Driver: Why? Is there a fat girl in my backseat?

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09-04-2009 02:59 AM  8 years agoPost 13
LonR

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Macomb,Mi

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When you take a battery out the computer has to relearn all the sensors,it can take 1 or so of driving for the computer to relearn.Drive on the E-way for 45 mins .

600LE,OS55,OS PowerBoost pipe,Align 610's,Spartan

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09-04-2009 03:18 AM  8 years agoPost 14
JEEPWORLD2002

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BLUEBELL PA USA

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first off i would change the fuel filter cheap and easy also will help with fuel milage but the stalling problem could be 2 things. both easy to do. first get a 10mm socket wrech disconnect the vacum line and wiring to throtle body flip it on it side and there will be a round motor with 3 pins and held in by 2 tamper proof torque screws be careful if they re tight coming out u may have to heat them with a little torche to loosen the locktite dont force as they will break N it a pain in the tail end to remove them. this is called the IAC motor. basically a servo with a linear throw. on the end is a pindel that regulates the idle. it get dirty and cloged clean with throtle body cleaner or carb clean (gum out/ 2+2) clean the passages on the inside where the iac goes. clean the whole t-body of all carbon. 2ND option is the MAP sensor.

Trex600n Trex500 Mikado LoGo5003d// Hacker, CastleCreations,Ys 50, JR 7703d/8900, Radix

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09-04-2009 10:00 PM  8 years agoPost 15
RayJayJohnsonJr

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Midwest

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...Help me get out of this stall.
Push the nose down....Get some airspeed

-Mark

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09-06-2009 01:33 AM  8 years agoPost 16
Mr.Green

rrVeteran

Kaysville, Utah

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That deffinately sounds like either bad muffler bearings or maybe your blinker fluid is a little low.

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09-06-2009 08:58 PM  8 years agoPost 17
beidle99

rrApprentice

West Deptford, NJ

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Not sure about Jeep products but on my Ford, when the IAC was going bad, a good tap with a screw driver handle got the motor to work again for a few starts. You have to do it with the engine running so get some one to hold the gas down to keep the motor running (not much just enough to keep it running) The part cost me about $100 on the Ford. If a hit with the screw driver works you know what you have to do.

Who raised the ground since I took off?

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09-07-2009 01:56 AM  8 years agoPost 18
JAYHELI

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Northeast Pennsylvania

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you just need to drive it. it will relearn itself takes time

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09-07-2009 01:59 AM  8 years agoPost 19
JAYHELI

rrApprentice

Northeast Pennsylvania

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if it ideled fine before the battery went it is not the IAC. put it in gear one foot on the break and one slightly on the gas to keep it running slowly leave your foot off the gas until it will idel by itself

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09-07-2009 02:14 AM  8 years agoPost 20
Gearhead

rrMaster

Vt

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""Chrysler Product""

gee, how did I know,,, cause I have one

if you have to pound on the Dash to get it to start you have to pull the Instrument Panel off and resolder the Solder Pots,,, ask me how I know

Jim
Buzz Buzz Buzz

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