Question about 1999 Suzuki Vitara

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Erratic iddling and misfires at cruising speeds

The engine misfires at cruising speeds and the slow idle is erratic.the spark plugs gets dirty with carbon after driving for about 15 miles although there is no substantial loss of power or overhea ting.When the air cond.is on the engine tends to get stalled

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  • cosita_ricah Jan 24, 2009

    Ihave the same exact problem. my vitara with a carb G16 engine is well taken care, with replacement of filters, sparkplug, cleaning, fine tuning, belts, oil, etc.. always on time do... but when running normally with the AC or with out it, sometimes it tends to idle erratically and misfires. sometimes when on he open road or iddling for a long time it will form a dark smoke and hard to raise the revs...after flooring the engine for a couple of second it will clear and run fine...i have try with fuel from different gas stations but the problem persist.

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4 Suggested Answers

boysor2933
  • 293 Answers

SOURCE: my 1995 suzuki sidekick idling problem

Check if you put back all the air (vacuum hoses) hoses to their proper places. You might inter change them making the EGR valve open. Also check your fuel filter and fuel injectors.

Posted on Apr 27, 2009

  • 116 Answers

SOURCE: Hi, I have a 1997

No carborator single central injector. check and make sure you do not have a vaccumme leak

Posted on Jan 21, 2011

rickyrt441
  • 4399 Answers

SOURCE: 2003 suzuki aerio and I got code p0303. Found

Thanks for choosing FixYa and welcome. There are a few things that can cause this to happen. Make sure you do not have a vaccum leak anywhere. It may be another spark plug or wire. It may be a clogged fuel filter or air filter. You may need a tune up, new plugs and wires, coil pack. If you have a distributor, change the cap.

Posted on Apr 30, 2011

  • 24 Answers

SOURCE: The idling of the engine

Okay, clean the tip of the spark plug and change the wire then fix it and see what will happen.thank you

Posted on Jun 29, 2011

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1 Answer

Vs commodore cruise control switches on but won't set. It also cuts out in idle erratically especially on roundabouts.


If your engine has a running fault possibly a misfire it will automatically stop cruise control from working you need to sort out your idle issue 1st Check all your vacuume hoses around engine if V6 Check for loose or perished/cracked hoses If nothing found get a Holden Garage involved it may be cheaper in the long run.

Dec 13, 2016 | Holden Cars & Trucks

1 Answer

How do I fix cod po301


Hello Carlos,
It is a common problem with '99 Cady (Random Misfire Detected)
  • Start the car and carefully pull the plugs boot out one by one, and put it right back (a few seconds is enough).
  • Take Notice of of which one is affecting the RPM of the engine ( slowing down and and shaking erratically).
  • With the engine Off.
  • Use the appropriate socket and again one by one take out the spark plugs and check them for oil and heavy residue build up.
  • If there is Oil in anyone of plugs, take the car to mechanic and let him or her do an evaluation or diagnostic.
  • You probably need new coil packs and spark plugs.
  • Change the oil and the air filter too, if they are dirty.
  • Check also the fuel filter.
  • If the code does not go away by itself, have it reset by a mechanic.
Best of Luck,
JP

Jun 28, 2015 | 1999 Cadillac Catera

1 Answer

The problem: 2001 mitsubishi galant es will not continue to run first start up in the morning


For idle issue,click the help links provided below :---

Bad miss at idle? http://technoanswers.blogspot.com/2012/01/bad-miss-at-idle.html---------- Engine stumbles coming off idle when warm?

http://repairhelpcenter.blogspot.com/2012/01/engine-stumbles-coming-off-idle-when.html

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While stop engine idles like cylinder missing?

http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html

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Idle flair is noticed on car? Rough idle? car will not idle? Erratic idle speed?

http://technoanswers.blogspot.in/2012/02/idle-flair-is-noticed-on-car-rough-idle.html

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High rpm in neutral? Inconsistant high RPM in neutral? http://technoanswers.blogspot.in/2012/02/high-rpm-in-neutral-inconsistant-high.html

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Erratic idle on car?

http://schematicsdiagram.blogspot.com/2011/12/erratic-idle-on-car.html

--------------
Low idle when cold out side?

http://repairhelpcenter.blogspot.com/2011/12/low-idle-when-cold-out-side.html

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Idle Air Control (IAC) Valve Replacing?

http://schematicsdiagram.blogspot.com/2011/12/gmc-idle-air-control-iac-valve.html

-----------
intermittent engine failure while idle?

http://repairhelpcenter.blogspot.com/2011/10/1996-camry-intermittent-engine-failure.html

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Engine quits at idle?

http://repairhelpcenter.blogspot.com/2011/10/engine-quits-at-idle.html

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Car overheats and Air blows hot at idle? http://howtobyme.blogspot.com/2011/11/car-overheats-and-air-blows-hot-at-idle.html

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Car not starting or turning over indicates towards multiple possibilities. It can be issue with battery or weak battery. But if battery checks out ok, then it can be starter issue or faulty alternator or problem with low fuel pressure or no spark at spark plugs due to dirty spark plugs or faulty ignition coil or injectors getting cracked or dirty and needs to be cleaned.


To confirm the problem, the basic troubleshooting is required.


Click this link below and follow the troubleshooting:------

http://technoanswers.blogspot.in/2012/02/car-starting-issues.html

---------

This will help.

Thanks.

Feb 26, 2012 | 2001 Mitsubishi Galant

1 Answer

Misfiring Landrover Serengeti 2.0L TD


For engine misfiring problem check the help links mentioned below. Click the link below to go through the troubleshooting procedure :---- Engine misses and truck jumps? Hard to down shift? Issue with high gear only? http://technoanswers.blogspot.in/2012/02/engine-miss-and-truck-jumps-hard-to.html

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Bad miss at idle?

http://technoanswers.blogspot.com/2012/01/bad-miss-at-idle.html

-----------
While stop engine idles like cylinder missing?

http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html

------------
Engine Misfire codes for car?

http://schematicsdiagram.blogspot.com/2011/12/engine-misfire-codes-on-chevrolet.html
Engine Misfire codes?

http://schematicsdiagram.blogspot.com/2011/12/engine-misfire-codes-on-chevrolet.html

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Misfire on cylinder 4?

http://schematicsdiagram.blogspot.com/2011/12/misfire-on-cylinder-4.html

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Oil on spark plugs and car misfires?

http://technoanswers.blogspot.in/2012/02/oil-on-spark-plugs-and-car-misfires.html

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And for .......

Car not starting or turning over indicates towards multiple possibilities. It can be issue with battery or weak battery. But if battery checks out ok, then it can be starter issue or faulty alternator or problem with low fuel pressure or no spark at spark plugs due to dirty spark plugs or faulty ignition coil or injectors getting cracked or dirty and needs to be cleaned.


To confirm the problem, the basic troubleshooting is required.


Click this link below and follow the troubleshooting:------

http://technoanswers.blogspot.in/2012/02/car-starting-issues.html

---------

This will help.

Thanks.







Feb 16, 2012 | 2003 Land Rover Freelander

1 Answer

Engine misfires at cruise speed 54-55 mph


Okay,it could be a lot of things.......SPARK PLUGS and wiring,coil packs, egr valve erratic and changing positions, vacuum leak.
Dirty fuel filter or gas cap not venting can cause problems.But those are rare. don-ohio (:^)

Nov 08, 2011 | 2000 Mercury Grand Marquis

1 Answer

Engine will not idle, high idle ok. 1985 aries 2.2L


usually when a car wont iddle it may have a blown head gasket , remove oil filler cap on rocket or tappet cover check for creamy coloured oil , if so blown head gasket , also when morot is cool remove radiator cap and check fro brownish residue under cap if so blown head gasket .
remove each spark plug if one or more of them is white on tip of plug water is getting into cylinder ..

if none of these some carby's or throttle body's have iddle screww which can be adjusted to speed up iddle , or if throttle body it may have an iddle soleniod which may need to be replaced ,
i hope for you is is just and iddle issue , both the solenion and head gasket arnt cheap to fix.
the soliniod although easier to remove and replace its cost is usually .... expensive on most makes of cars , dont know why just because there greedy dealerships !

hope you need only to adjust carby or check timing is o.k

good luck hope this helps

Oct 09, 2010 | 1985 Dodge Aries

1 Answer

I am having ongoing problems with the truck miss firing and rough running. Timing is ok, replaced cap and rotor,coil. It still starts rough,idles rough and misses when at cruising speed,although it seems...


Misfire is a common driveability problem that may or may not be easy to diagnose, depending on the cause. A misfiring cylinder in a four-cylinder engine is, pardon the pun, hard to miss. The loss of 25% of the engine's power output is the equivalent of a horse trying to run on three legs. The engine may shake so badly at idle that it causes vibrations that can be felt in the steering wheel and throughout the vehicle. The engine also may be hard to start and may even stall at idle, depending on the accessory load (air conditioning, headlights and electric rear defroster, for example).

When misfire occurs, performance suffers along with fuel economy, emissions and idle quality. And, when a misfiring vehicle is subjected to an emissions test, it will usually fail because of the unusually high levels of hydrocarbons (HC) in the exhaust.

What causes a cylinder to misfire? Basically, it's one of three things: loss of spark; the air/fuel mixture is too far out of balance to ignite; or loss of compression. Loss of spark includes anything that prevents coil voltage from jumping the electrode gap at the end of the spark plug. Causes include worn, fouled or damaged spark plugs, bad spark plug wires or even a cracked distributor cap. A weak coil or excessive rotor gas inside a distributor would affect all cylinders, not just a single cylinder.

"Lean misfire" can occur when the air/fuel mixture is too lean (not enough gasoline in the mixture) to burn. This can be caused by a dirty, clogged or inoperative fuel injector; air leaks; or low fuel pressure because of a weak pump, restricted filter or leaky pressure regulator. Low fuel pressure would affect all cylinders rather than an individual cylinder, as would most air leaks. A leaky EGR valve can also have the same effect as an air leak.

Loss of compression means the cylinder loses most of its air/fuel mixture before it can be ignited. The most likely causes here are a leaky (burned) exhaust valve or a blown head gasket. If two adjacent cylinders are misfiring, it's likely the head gasket between them has failed. Also, if an engine is overheating or losing coolant, it's likely the head gasket is the culprit.

Intermittent misfires are the worst kind to diagnose because the misfire comes and goes depending on engine load or operating conditions. They seem to occur for no apparent reason. The engine may only misfire and run rough when cold but then smooth out as it warms up. Or, it may start and idle fine but then misfire or hesitate when it comes under load. Also, it may run fine most of the time but suddenly misfire or cut out for no apparent reason. Intermittent misfires can be a real challenge to diagnose, so let's start with a steady misfire in one cylinder before moving on to intermittent misfires.

Hope this help.

Mar 25, 2010 | 1989 GMC Sierra

1 Answer

Over iddles in park


For the high rpm part, have you looked to see if there is a vacuum leakage or possibly a fault in the Idle Air Control motor.

With overheating since jeeps are single belt driven it could be possible the fan is starting up when driving slow or parked because the belt is moving right. Or look for leaks in the coolant maybe it's not getting enough coolant.

fluid in the glove box though, can you be more specific with that one.

May 21, 2009 | 2002 Jeep Grand Cherokee

1 Answer

2003 suburban idles to low.


the idle speed is computer controlled and not adjustable, slow idle is caused by a dirty intake, do the following.

Here are some of the causes of surges, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

Mar 30, 2009 | 2003 Chevrolet Suburban 1500

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