Can a bad serpentine belt cause rough idle

    Most Common Causes of Serpentine Belt Noise. A serpentine belt drives the auxiliary functions of your car. It charges your battery and operates the pumps for power steering, air It may quiet the noise temporarily, or make it worse. It can also damage bearings, wiring, and other engine components.

      • May 02, 2018 · Your mechanic can easily handle this situation. Bad timing belt. Your timing belt is responsible for the proper synchronization of your intake and exhaust valves with the movement of your pistons. When everything works correctly, you have a smooth-running engine. But a worn-out timing belt can slip, throwing off this precise calibration.
      • Ford Fiesta 1.4 2002 - New Serpentine Belt Now Fiesta Will Not Start - guitarman1977 : Hi AGAIN! After a few weeks with no problems starting and running i have problems again. Today the car did a big misfire and since then runs rough at idle....misfiring i guess.
      • Causes. A misfire usually starts out as being merely a nuisance but if the causes aren’t identified and corrected, it may result in your engine not starting or stopping altogether when you least expect it. Many system malfunctions can cause misfires or rough idling.
      • Symptoms of a Bad Idle Air Control Valve. If the 'Check Engine' indicator on your vehicle glows continuously, a possible cause may be a malfunction in the idle air control valve. This WheelZine article tries to list down the possible signs and symptoms of a bad idle air control valve.
      • serpentine belt change. Jump to Latest Follow. If you have the original idler pulley with over 100,000 miles, I predict the idler pulley bearings are rough and noisey (spin the idler puller once you have the belt off). We have 9-years old belt on at least one of our MB and it doesn't look too bad.
      • Jul 02, 2016 · If you have a tendancy to stall, try adjusting the idle speed to the maximum of the range or 900 RPM. Adjust the idle speed screw. Uneven Running. If your Miata is running unevenly, sometimes stalling, sometimes hesitating, there could be another problem. Your timing belt may have jumped a tooth or worse, your crank shaft may be broken.
    • No it is not your serpentine belt. Or your timimg belt. At least not if you are describing things accurately. Could be a vacuum leak form broken rotten hose as this is most common cause of stalling/no idle. Could also be IAC vavle malfunctioning. It controls your idle speed.
      • Symptoms include rough idle and engine surging. Doesn't seem to have any It has a long list of possible causes. Anything that affects the speed of - Worn serpentine belt - Binding Engine-Driven accessories: A/C Believe it or not I got the same codes for a bad vacuum line..replaced line...boom...
    • In this case this belt is fitted to my own car, as can be seen the pitched groove section which runs on the pulley wheels has split, although in my opinion this is not going to cause failure of the belt, I have purchased a new one which I will keep available for when it is needed.
      • See full list on wheelzine.com
    • The serpentine belt will be forward about 3/4" so the alternator will need to be mounted that much further forward. The spacer to do this is included in the TAD kit. I'll just have to make my own. Also, rather than reuse my existing coolant pump I've ordered a replacement. The old can be a spare.
      • In this case this belt is fitted to my own car, as can be seen the pitched groove section which runs on the pulley wheels has split, although in my opinion this is not going to cause failure of the belt, I have purchased a new one which I will keep available for when it is needed.
      • Sometimes the seal can wear a groove in the balancer’s sealing surface if it’s run in less than ideal conditions or in a gritty environment, and any imperfection there can prevent effective sealing and cause a leak. Another part that might be recommended for replacement is the serpentine belt.
      • Dec 08, 2014 · I think that was causing the rough idle. On the way home from work the pulsing lights stopped but then started again so it has become intermittent. I put a new serpentine belt on and it is now within the specified range but the tensioner itself and idler pulley are bouncing still and making the squeaking noise.
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    • Third: I have noticed a noise coming from the serpentine belt area. It sounds like something rattling. I only hear the noise when the car is idling, not when under power (possible masked by the increased engine noise). I also only hear the noise when a load is put on the alternator (headlights on, blower...
    • Ok, my 350 TPI IROC has been idling rough for some time and suffers a Can my alternator cause these symptoms, along with driveability Just pulling the alternator with your hands to tighten the belt is never tight enough! Just put a new belt on and it's a serpentine system, so I don't know if that's the...
      • May 22, 2008 · 97 civic. I love that car. Ok, the squeaking and rough idle can be one and the same, could also be two different things. Lets start with the cheapest. Few reminders before starting:-Check the power steering hose and reservoir, make there are no ATF leaks that get to the serpentine belt and air compressor.
    • serpentine belt change. Jump to Latest Follow. If you have the original idler pulley with over 100,000 miles, I predict the idler pulley bearings are rough and noisey (spin the idler puller once you have the belt off). We have 9-years old belt on at least one of our MB and it doesn't look too bad.
    • FAQ Stolen directly from Kongregate Forums from User FeralFalken. Seriously, all credit goes to them. Will format page better when time allows. Welcome to the FAQ! A: There's a "WTF do I do?" button on nearly each page, it will take you to a page that explains each major feature.
    • Dayco 5060878 Serpentine Belt Amazon.com Price: $ 79.85 $ 27.55 (as of 11/15/2020 18:00 PST- Details ) Product prices and availability are accurate as of the date/time indicated and are subject to change. •Worn Out Serpentine/Drive Belt. Typically the first sign you'll get of a bad serpentine/drive belt is horrible screeching and squealing whenever you start the truck. That's the sound of them slipping on their rollers as the pulleys and belts get warmed up. Excessive slipping will cause the belts to heat up and smell like burning rubber. •Belt squeal, squeaky belt, belt noise? Learn how to fix a squeaky belt in your car. There are three types of serpentine belt wear, pilling, glazing, and abrasion. Pulley wear will cause your pulley to squeak.

      A damaged dampener can make a squeak when it rotates, and it will not stop no matter how much belt dressing is applied. 7. Elongation of the dampener keyway If the keyway shows any sign of damage or play, the crankshaft dampener is damaged. 8. Irregular idle A dampener is designed to work over a wide variety of engine speeds.

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    • The oxygen sensors are threaded into the exhaust manifold and/or exhaust pipes on all vehicles. Heated oxygen sensors are used on all models to allow the engine to reach the closed loop faster. A faulty oxygen sensor due to loose connections, bad grounds, high resistance in the circuit, or opens in the circuit can cause the following symptoms. •After I tighten the intake, and put put the new serpentine belt, the problem occur. Basically, the engine starts but very low rpm I have read all the sagas of KYNZ and others regarding incorrect timing which lead to rough idle, hotter than normal.

      A serpentine belt is just one of these, and it is the kind of thing that you are unlikely to notice until something goes wrong. Whether you are looking for a new serpentine belt in the near future or you are simply looking for some more information about this part, you have certainly come to the right place.

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    • Nov 18, 2019 · Today's modern vehicles use a serpentine belt to drive the air conditioning system, alternator, water pump, smog pump and power steering pump. Previously, these systems used multiple belts on pulley systems with a number of ways to manually tighten the belts. The serpentine belt system consists of only one belt and one automatic belt tensioner. •Check your ignition coils cause one might have failed. Start the car and pull the plug from each ignition one by one. The engine should idle bit rough. If you pull one and it doesn't change the idle then that ignition coil could be stuffed. If you got some cash invest in a code scanner and check what codes are being thrown. •The belt tensioner is an important part of the drive belt system in your car. This system is responsible for converting some of the power generated by the engine. Some of the more common symptoms of a failing or bad belt tensioner include the following.

      The main purpose of any belt tensioner is to tighten the engine belt, allowing the belt to energize congruent parts of an engine, such as the serpentine belt to the alternator. Belt tensioners lose strength over time and a driver might begin to notice several signs that a tensioner is going bad.

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    • Gents; Working on my boy's 2005 Classic with the ecotec 2.2 engine with 140K miles. Changed the plugs oil and filter and did a transmission flush. Been an awesomely dependable auto for several years. The car is smooth and quiet but there's one annoying issue and that is a rough idle. Anything... •Toyota 4Runner 2018, Lower Drive Belt Idler Pulley by Hayden®. This part is designed to route the drive belt and keep it tight. If the pulley goes bad, it can cause problems with cooling, charging, steering, and climate control. Replace...

      Jan 26, 2019 · This can lead to a rather loose pulley, unable to maintain the tension on the drive belt system so that the drive will not slacken. This can also push the drive belt off the idler pulley resulting in belt travel. It is also possible that the middle groove on the idler pulley has grown wider. This can also destabilize the belt’s movement.

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    Feb 28, 2014 · Bad spark plugs, bad spark plug wires and a bad distributor cap are other common causes of rough idling. These items are all important parts of what keeps a vehicle running. Spark plugs provide the spark that ignites the air and fuel mixture within the cylinders.

    Locate the serpentine belt tensioner on your Mazda engine. You will need to move the tensioner away to release pressure from the belt. If the squeaky noise goes away when you spray the conditioner, that means the belt is bad. What happens if your Mazda serpentine belt breaks?

    Dec 08, 2014 · I think that was causing the rough idle. On the way home from work the pulsing lights stopped but then started again so it has become intermittent. I put a new serpentine belt on and it is now within the specified range but the tensioner itself and idler pulley are bouncing still and making the squeaking noise.

    Rough idle, or miss with ve pump ... I have tried running with serpentine belt off and fuel can on the fender . ... So I'll try and study up on the 'cause' of the bad ...

    No biggie, but noticeably annoying. Next, when I started the car, I noticed that the spring wasn't dampered very well and the tensioner was vibrating +/- 1/4" during idle, I can only imagine the motion under a throttle pull. Within 2-3 months, I don't have a belt tension tool, but deflection seemed okay, so just went with it.

    How I managed to avoid hitting anything is anybody's guess. If I'd still been on the freeway doing 70, I'd have been in deep doo doo. I really miss the old V-belt designs where if you broke a belt, you lost ONE thing, not everything. '07 2500 w/5.9L and 51,000 miles. I check the belt carefully at each oil change - last one 2 weeks ago.

    If one of your pulley bearings or the water pump bearings are going, this will put a strain on the belt and therefore the engine and this could effect the idle speed. Difficult to diagnose. Check the belt tension and listen to the belt area for strange noises. remove the belt and rotate each pulley by hand.

    A serpentine belt is a single, continuous belt used to drive multiple peripheral devices in an automotive engine, such as an alternator, power steering pump, water pump, air conditioning compressor, air pump, etc.

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    Mar 02, 2013 · I have a 2002 Legacy 2.5 that has an idle surging issue. Here is the breakdown: Engine was running rough and surging at idle and would eventually stall. It needed head gaskets, timing belt etc. so I pulled the engine and did all the work. All went well and after putting it back together it still has the same surging issue which is not surprising.

    As for a rough idle, I always suggest starting with a thorough check of the vacuum hoses/intake boot followed by looking for any other kind of vacuum A fuel filter, and even the air filter, generally will not cause a rough idle or misfire condition - instead the issue is generally poor WOT performance since...

    Jun 04, 2008 · 2002 Serpetine belt squeal: Some F-Series, Excursions and Econolines built between on 11-29-01 and 11-30-01 may have had the wrong power steering pump pulley installed. The grooves in the incorrect pulley will be off-center, and may cause the belt to walk towards the radiator. The correct pulley should be marked F8TE-3D673-AA.

    Overtime the factory wire harness on your F, F, F, F or Excursion can develop cracks resulting in rough running conditions, rough idle, . Jul 12, · Own a Hemi Dodge Ram Truck, which I drive the truck daily and and use it for towing.

    Jan 11, 2009 · A bad plug will also cause it to run rough and have a bad exhaust smell and cause the noise you are hearing at the tail pipe. It could also be something REAL SERIOUS like a burnt valve, but start with the simple stuff first. The grinding sound could be a tensioner pulley for the serpentine belt.

    Serpentine Belt How To (DONE!) Disclaimer - The following describes my experiences with my particular car, a 2004 9-3 linear. Serpentine Belt How To. Jump to Latest Follow.

    1x K061015 belt 1x 36157 ribbed idler pulley 1x 38274 Belt Tensioner 2x 38001 smooth idler pullies. So you will find yourself looking under the hood of your truck as seen here. What you will need to do is loosen the 10mm bolt hold the air intake...

    4. Broken Serpentine belt. The drive belt is responsible for turning the pulley on the alternator. Without the drive belt, the alternator will not be able to charge the battery. Sometimes a slipping belt can cause a decrease in power, or a bad drive belt tensioner can also cause a belt to slip.

    Belt problems – When a power steering belt slips, you will feel a chatter-like shaking in the steering wheel. This shaking will happen as you try to make a turn and will be accompanied by the screeching sound described above. The exterior of a power steering belt can appear like it’s in good shape and on tight.

    May 23, 2009 · It only does it at idle with the A/C on and really goes ape s*^t when you put it in gear. The belt flops back and forth between the alternator and the A/C compressor. You can see it when the hood is up. BTW, the transmission mount on the drivers side is bad and one is on order.

    The serpentine belt will be forward about 3/4" so the alternator will need to be mounted that much further forward. The spacer to do this is included in the TAD kit. I'll just have to make my own. Also, rather than reuse my existing coolant pump I've ordered a replacement. The old can be a spare.

    I have a 2000 VW new beetle that i've had for about 3 months and i've done lots of work to it, but my bigest concern now is when i start the car in cold temperatures. it misfires and idles rough for about 10 min or so a check engine light comes on during that time and is always a. P0300 (random Misfire)< I...

    Jun 21, 2012 · It NEVER solves the root cause of the belt squeal or chirp. Don’t use belt dressing. Find the real cause of belt squeal and chirp. So what’s the real fix? Belts squeal and chirp because: 1) the belt is worn or glazed 2) the belt is too loose or too tight. If you have an automatic tensioner, the only fix is to replace the tensioner.

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    Oct 03, 2020 · Check the serpentine belt and make sure that it is properly tensioned. A worn serpentine belt often also causes a loud squeezing noise. Also, check the alternator and make sure that you can turn it freely after releasing the serpentine belt. 4. Bad valve cover. A bad valve cover causes engine oil to leak into the exhaust manifold. If this is ... This task usually causes an area to become high traffic, which can open up a kill opportunity to a very aware Impostor. On the Skeld, the common tasks can be Administration card swiping or wire fixing. Do note that crew members can share other tasks randomly.

    Misfire, rough idle: Carbon buildup can cause the EGR valve to stick in open position and cause a rough idle. Serpentine belt squeal: V-6 engines with the serpentine belt system can squeal loudly due to a worn idler pulley or tensioner. A new pulley and belt should fix the problem. Aug 13, 2009 · The serpentine belt tensioner and serpentine belt may also be damaged. Correction. Technicians are to check the A/C system performance and compressor operation using the following repair procedure: 1. Open the hood and inspect the A/C compressor for damage and to see if the compressor is seized. Verify that the serpentine belt is not damaged or ...

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