Question about 2004 BMW 3 Series

2 Answers

Car runs rough during initial startup!

Car misses during initial engine start. Getting lean codes from code reader. After about 30 seconds when the engine warms up, the engine smooths out and runs fine. During the time that the engine is running rough, it sound like there is a vacume or some type of air valve problem...

Posted by on

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Expert
  • 32 Answers

Check for a vacuum leaks and or cracks in any of your vacuum lines and or intake manifold

Posted on Jun 07, 2010

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 6,826 Answers

Check the fuel filter,or just change it,it is more likely it is stopped up.

Posted on Jun 07, 2010

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Why does Check engine light. Car misses or runs rough during initial warm up but runs smooth after motor temperature increases to normal operating range


If the check engine lite is on, check for applicable trouble codes. Around here some of the national brand autostores will check some codes for free. How long since a tune-up?
The basics for a rough idle, is to check for a leak of some kind, fuel--egr--vacuum, something of that nature.
If a temp issue, check coolant temp sensor.
I don't know year--make--model?

Jun 12, 2017 | Cars & Trucks

1 Answer

Im getting P0171 code- lean .


About 259,000 results (0.64 seconds) Search Results

    obd ii - 'Check Engine' code P0171 System Too Lean - Is it ...

    mechanics.stackexchange.com/.../check-engine-code-p0171-system-too-l...
    Feb 11, 2014 - 'Check Engine' code P0171 System Too Lean - Is it safe to drive? ... My question is: is it okay to drive my car while it shows these codes? ... This will cause you to get increasingly worse fuel mileage. ... I am going to defer to your expertise, but I just want to ask if you've considered that lean-running engines ...

    P0171 and P0174 - OBD-II Trouble Codes - RepairPal

    repairpal.com > Encyclopedia > OBD II Codes
    Definition of error code P0171 and P0174 - System too Lean (Bank 1 and Bank 2). ...Before we get into the main causes of P0171, let's explore why this code matters. ..."Lean" running cars and light trucks are highly polluting vehicles. Most of ...

    Mazda tribute codes p0171 - Cars & Trucks 'Cars & Trucks

    www.faqqq.com/.../mazda-tribute-codes-p0171-cars-trucks-cars-trucks-6...
    Question Product: Cars & Trucks Question Details: Mazda tribute codes p0171 ... I am getting the following (4) codes in a 2003 Mazda Protege5 engine: P0090 ...

    P0171 Code thrown while idle - Toyota Nation Forum : Toyota Car ...

    www.toyotanation.com > ... > Yaris/Scion iA, Vitz and Echo Forum

Jan 27, 2016 | Cars & Trucks

2 Answers

Hard starting when left overnight


ya, this is gonna be a tricky one. without hooking it up to a code reader at a mechanic you gonna be shotgunning parts until you get frustrated.

Maybe a temp sensor?
Maybe a Idle Air Controller?
Its hard to say 100% sure without a computer.

The mechanic code reader will be able to tell you if a sensor is not working right even if you aren't getting codes.

Mar 27, 2012 | Cars & Trucks

1 Answer

I have a 2006 jetta gli turbo with about 82000 miles on it about four months ago the check engine light came on but nothing noticeable was going on with my car or the drive. recently when it started...


Hi

You need to go to a shop with a code reader. The check engine light was telling you something and you need a code reader. Depending on which country you are in, if in the states autozone may have it for free.

Whatever initiated the light is now messing up the other parts of the car.

Hope that helps.

G.

Feb 11, 2011 | Volkswagen GLI Cars & Trucks

1 Answer

I have a 2000 Hyundai Sonata that runs rough when you start it up. I hooked a code reader to it and it said that system was lean on bank 1 and multi misfire and not reading 02 sensor on bank one. I have...


time to get the engine properly scanned, real time not code scanner, then you will have the readings from sensore and actuators, diagnose from there

Dec 14, 2010 | Hyundai Motor 2004 Sonata

3 Answers

Hi, I get code number 51. Not sure what I can do to find and fix problem. Thanks


Code 51 is Wide Open Throttle Problem. You need to replace your fuel filter, possibly drain fuel tank and clean fuel pump pre-filter. That is in the fuel tank. If you have the cash, I would replace fuel pump while inside the tank.

Sep 25, 2009 | 1994 Chrysler LeBaron

1 Answer

What does code number P1128 mean when light is on


P1128 - Long Term Fuel Trim Multiplicative System Too Lean.
The ECM will set a code and the MIL will turn on if the long-term fuel trim value goes from 10% to 15% lean for 30 seconds during two driving cycles when the following conditions are met:
1.- Engine loads exceeds 1.8 milliseconds.
2.- Engine coolant temp. is above 158F (70C).
3.- Canister purge system is not operating.
4.- Mass air flow is less than or equal to 5.5grams per second.
5.- Engine speed is below 1000RPM.

Please Rate Me =]

May 28, 2009 | 2001 Hyundai Elantra

1 Answer

2005 Ford Taurus SE 3.0L V6 OBD Codes P0171 and P0174


The P0420 code is a Catalytic converter efficiency code check the compression.Swap the #1 injector to a different location to see if the code follows.Test the coilpak. A cracked exhaust manifold is the most likely cause p0171 and 0174 Induction air leaks, vacuum or some kind fuel restriction, weak fuel pump, restricted fuel filter etc.You also could have an exhaust leak near the upstream o2 sensor. If youtake it in they will probably use smoke to find out where the leak is.

Apr 22, 2009 | 2001 Ford Taurus

1 Answer

'01 Elantra Start-up issue


i think you should change the fuelfilter.

Aug 08, 2008 | 2001 Hyundai Elantra

Not finding what you are looking for?
2004 BMW 3 Series Logo

245 people viewed this question

Ask a Question

Usually answered in minutes!

Top BMW Experts

Frankie B

Level 2 Expert

65 Answers

Fred Sops

Level 2 Expert

272 Answers

Doberman

Level 2 Expert

254 Answers

Are you a BMW Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...