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Idles fine when its first started, but after warming up it starts to miss. what is causing the miss?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 23 Answers

SOURCE: mercedes 190e 2.6 auto,starts fine

MAY REQUIRER THROTTLE BODY CLEAN UP,OR FUEL CLEANER IN THE SYSTEM...

Posted on Nov 15, 2008

  • 1 Answer

SOURCE: 1999 Olds Intrigue (3.5 L

crankcase sensor, located behind starter on 3.5

Posted on Nov 25, 2008

lastech
  • 408 Answers

SOURCE: MY 1985 300 SE IDLES ROUGH AFTER IT WARMS UP

hi,seem you have leak on intake manifold or rubber seal on injector nozzle,be careful drop a little amount on kerosene on intake manifold and nozzle,observe if your idling get high the is there,maybe renew rubber seal on intake gasket,ty

Posted on Mar 25, 2009

  • 335 Answers

SOURCE: 99 suberban missing at idle after warm

Code shows missfire on No 1 cylider. When engine is cold it runs a rich mixture. If the missfire is still No 1 then check for vac leak on manifold. Perhaps a vac line or intake gasket.

Posted on May 27, 2009

rnb_tnt
  • 111 Answers

SOURCE: 1993 inline 6 grand cherokee .starts and runs fine

check your fuel filter, plug wires, and plugs.

Posted on Oct 28, 2009

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My 2004 3800 series pontiac bonneville will start up fine and idle fine but seems like when it gets warm it shuts off?


P0172 is a rich condition > I dough it would cause it to shut off after it warms up . If real rich , it would cause a no start at all . Fouled spark plugs , you can pull the spark plugs to see if they are black or wet with fuel . Starting and running till warm then shutting off is a classic sign of an electronic component starting to fail . Does it start right back up or do you need to wait till it cools down ? If it doesn't start right back up , pull the two plug wires off the same coil and have someone crank it over . Is there spark ? If not , probably ICM - ignition control module is bad . There are videos on youtube on how to test GM DIS ignition systems . (distributor less ignition systems )

Jan 25, 2017 | Pontiac Bonneville Cars & Trucks

1 Answer

Engine miss when cold, engine light on, new gas, air filter. fuel pump in tank. hot engine loght goes on off, when off at stop stalls out engine light off.


Diagnose Engine Misfire - Auto Diagnosis Repair Help

www.aa1car.com/library/misfire.htm
The engine may shake so badly at idle that it causes vibrations that can be felt in ...The engine may only misfire and run rough when cold but then smooth out as ...

What is causing an intermittent misfire only when engine is ...

community.cartalk.com/.../what-is-causing-an-intermittent-misfire-only-...
Jun 27, 2013 - NOTE: You MUST restart the engine for the misfire to go away. ... in an expert to do that test, but it might be worth it to prove/disprove the injectors being thecause. 0 ... The first is that the car should run fine even on cold starts.

Engine misfires when cold but runs fine after warming up few ...

https://answers.yahoo.com/question/index?qid...
Mar 24, 2009 - They also gave it to me because of this misfire problem it has. ...Engine misfires when cold but runs fine after warming up few minutes later? ... and you start next morning will also cause a misfire until it burns off the coolant.

"Miss/splutter" with cold engine, but fine when warm? M103 / also ...

www.peachparts.com > ... > Tech Help
Jul 13, 2011 - My moms old 300SEL (with the M103) that was once my car is now my "work car" again as she is getting a brand new SUV very soon.

Cold start misfire solved (finally!) - Bimmerforums


Dec 16, 2015 | Cars & Trucks

1 Answer

1991 Ford Aerostar runs fine when cold then starts missing when it warms up?


Try spraying carb cleaner around the intake if idle increases it is a bad intake gasket. It also could be a bad plug/s, wires, or low compression in one of the cylinders. At higher idle a slightly lower compression cylinder is not noticeable but after warming up the idle drops causing the cylinder to have a misfire.

Sep 24, 2014 | 1991 Ford Aerostar Extended

1 Answer

2008 ford escape Missing shows number4 miss fire,changed coil and plug on number4, still the same..


It could Be a wire id use a multi meter to check the ohms of your wires. It could be a sensor or the ignition control box. im not sure its hard to say without looking at it.

Nov 26, 2011 | Ford Cars & Trucks

1 Answer

Will intake gasket leak make the lifters tic when first starting


I dont think and intake gasket will cause lifter noise. It may cause a rough idle and or a miss at idle on cold start up . as the engine warms up the miss or rough idle will decrease . As for the lifter noise this could be cause by the lifter bleeding down or poor oil presure . On your model of engine there is no adjustment on the rocker arms for lifter noise . They are a 0 lash type .

Mar 06, 2011 | 2001 GMC Jimmy

1 Answer

Code 15 ignation output car runs good when cold gets warm check eng light miss.lacks power not hitting on all cyl. suspect bad ignitor..


Check the EGR valve. Look up on the internet where on your car it is located. Find the vacuum line connected to it. Start the engine cold and as it warms up and starts to miss and stumble, pull off the vacuum line from the EGR. If the car idles fine, replace the EGR. Ignition system problems are more likely to occur at idle or lower rpm. Besides, testing the EGR is free, easy and do fail in high mileage vehicles.

Jun 02, 2010 | 1988 Acura Legend

1 Answer

86 ford f250 the truck wants to stall when warmed up and once warmed up it wont start back up until cooled down


I had a truck that acted similar and it turned out being the coil! It ran fine on idle but once it warmed up it missed and had trouble starting. Good Luck!!

Mar 17, 2010 | 1986 Ford F 250

1 Answer

2004 Ford F250,6.0 Deisel .When starting cold,won't turn above1500 RPM,without choking out black smoke,hacks and coughs till back to idle then idles fine ,not drivable till idles for half an hour,will not...


Ford 2004 6.0, Driving down road seams like when it starts warming up it starts Missing or accelerating,jerking,as long as you keep the acceleration it seems to work as soon as you level it out it starts missing,even dies at stoping sometimes...Changed fuel filter, put fuel additive in tank still missing,HELP

Jan 02, 2010 | 2004 Ford F250

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