Can a bad serpentine belt cause rough idle

3000gt Rough Idle Loss Power
Yes, a bad belt or tensioner can be related to a rough idle. If it is not tight enough, or worn it is not able to run as smoothly as needed to keep the engine running smooth.
COMMON CAUSES Common causes of intermittent stalling may include a bad idle speed control (ISC) A faulty idle speed control circuit may also allow the engine to stall when idling if it fails to This can make the engine idle rough, misfire and/or stall. Inspecting and cleaning the EGR valve...
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.
Automatic belt tensioners, standard in most cars now, make changing a serpentine belt a simple DIY repair. Follow the clear photos and step-by-step instructions and you'll be done in 15 minutes. If you’re old enough to remember the good old days when you changed your own fan belts, then you can ...
Instead use a high output spray bottle of water and carefully spray the belt to see if the noise disappears. If it stops squealing when wet this is an indication it needs further inspection. A worn or stretched out serpentine belt along with a malfunctioning tensioner are some of the problems that can develop with an air-conditioning drive belt.
Idle Speed Sensor Symptoms
manufactured prior to the late 1980's may not have a serpentine belt, but instead may have multiple V-belts . for each of the different systems requiring them. A belt can squeal for many reasons but the most common three are: There may be fluid on the belt The belt may be too loose The belt may be too tight
Aug 07, 2017 · Worn Out or Poorly-adjusted Timing Belt and Other Belts Can Cause Noises and Vibration. Your car’s timing belt, serpentine belt, or v-belts on other systems, are common causes of engine vibration and squealing.
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.
Rough idle, 2004, Help. Jump to Latest Follow. possible bad boot/coil. check serpentine belt pulleys for resistance - any extra belt drag will result in a bad idle on this car. How is your idle "rough", specifically? Is rpm too low and causing the car to vibrate?
Sep 05, 2011 · the tensioner deal on the serpentine belt kind of makes me nervousHow is the best way to change a water pump on a %26039;98 caravan 3.3 liter engine? The serpentine belt tensioner is not hard to deal with. They make a tool that makes it easy to move it, to allow the belt to be taken off.
Jul 07, 2019 · But if you wait too long for the idler pulley to break apart, then it’ll cause the other corresponding components to break too, such as the drive belt. 2) Pulley Slippage. If the idler pulley were to slip and make contact with the engine belt, it’ll cause a plethora of unpleasant squealing sounds to erupt from the engine.
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.
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...
Jul 07, 2019 · But if you wait too long for the idler pulley to break apart, then it’ll cause the other corresponding components to break too, such as the drive belt. 2) Pulley Slippage. If the idler pulley were to slip and make contact with the engine belt, it’ll cause a plethora of unpleasant squealing sounds to erupt from the engine.
Jun 17, 2014 · This pressure causes a piston to move, and that piston directs the gears to steer the car. When the power steering fails, the wheels of the car become exponentially more difficult to turn. The wheels will turn, but the force required to make this happen can be unexpected and problematic. If power steering failure occurs while a car is in motion ...
Jun 28, 2006 · However I noticed at idle speeds, stoplights etc. it seems overly rough. On a revisit to the mechanic he noted the timing belt to be off allignment by a notch and this fix greatly improved the vibration; however, I still notice a marked increase in vibration if I ad any load to the engine at idle speed, such as turning on the a/c or blower.
Your engine’s whining noise can be addressed relatively easily. It can be caused by: Worn serpentine belt (a frayed belt is about to fail completely) Worn pulley causing the belt to slip; Pulleys are loose and need to be tightened; A quick stop to the mechanic should easily clarify the cause of the problem.
Can a Bad O2 Sensor Cause a Misfire? Diagnosing an Engine Misfire. In this specific case, my 2004 Nissan Titan would almost stall at idle, there was some Bad Oxygen (O2) Sensor. The suggestions I received seem to be all over the map, so I decided it was time to do some of my own internet research.
The Serpentine belt is controlled by either a serpentine belt tensioner or an idle pulley. How does a serpentine belt differ from traditional belt driven engines? The new serpentine belt, which was invented in 1979 is a much wider belt then the traditional automotive belt. This wider belt can be put under much tighter tension, which removes a ...
People always seem to complain of bad idle after a cambelt change on here. After a change you must reset the fuelling with the engine warm and consumers on via the diagnostics. The slightest...
The first question is, can an exhaust leak cause a rough idle? If your engine develops a miss (which means one or more cylinders are not firing), it will result in a rough idle. If the reason for the miss is ignition or mechanical, there will still be raw gasoline exhausted into the exhaust system.
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.
Apr 12, 2019 · The code has not returned. The idle has been smooth. In fact, I have gone over 10,000 miles since with two oil changes in between and the rough idle issue has not returned. Don't take my word for it. If you get this code along with rough idle, take it to the dealer. But what I've found is, dirty oil in your 2014 Kia Optima (GDI) can cause this ...
Ecotec Rough Idle
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.
Nov 13, 2005 · This can cause wear and tear on your engine and should definitely be looked into. It shouldn't be very expensive at all to replace all spark plugs and spark plug cables. If the car is a '97 and has never had this done - it couldn't hurt to just do it anyway for the sake of having new parts in there.
LS1 Belt Tensioner Chatter. The car has had an issue with vibration for some time now. The symptoms are as follows: severe vibration whenever the car comes to a stop (it seems to be related to the suddenness of drop in RPM) at idle with the gear engaged in 'D' (~600 RPM).
A high pitched noise from the timing belt usually means the belt is too tight. As to the misfire, could it be the timing belt is installed a tooth or two off? Other than those 2 things a rough running engine at idle can be caused by a vacuum leak, low compression, faulty injector spray pattern, etc.
Low fuel pressure can certainly cause the engine to run lean which will obviously flag a P0171 lean code. However, I do not see this one very often causing this code. Don’t get me wrong, low fuel pressure is very common, but the customer will come in with a low power or even an no start complaint before the computer gets a chance to set a ...
A serpentine belt, also known as a multi-vee, poly-v, or multi-rib 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. Over time the belt can become frayed, cracked or even break.
Jan 17, 2018 · When the DPFE sensor is failing or goes bad, it causes rough idling, a reduce in power, and it may cause the "check engine" light to come on. If you live in a state with vehicle emissions testing, this may be the reason why your car fails the test.
Vehicle Engine Mechanical Inspection Cost. Service Location. SELECT YOUR VEHICLE. $0.00. Upfront, Transparent Price. (145,680). The serpentine belt, also known as the drive belt, is a belt on a car engine that works with the idler, tensioner, and pulleys inside the accessory drive belt system.
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...
If you think you have a bad alternator you should either get it checked out for sure or replace it. Autozone or Advance Automotive do this for free. It is a more comprehensive test with it removed. Yes low voltage can cause a bad idle and you may end up breaking other parts if you drive it like that.

Exam drive belt for demage, leave the engine idle for a couple of seconds without the belt, if the squeal is gone, noise is related to the drive belt or components: pulleys and belt tensioner. Spray Silicone lubricant on the alternator bearing if not sealed, and on underside drive belt. The serpentine belt could have stretched with age and may not be spinning the alternator pulley effectively, leading to a lack of charge. This typically results in a squealing noise. On the other hand, the internal bearings can wear out, causing a growl or grinding noise. 4. Electrical issues Had to replace the serpentine drive belt tensioner at 140,000 miles and used the following procedure. The replacement bearing had a rough spot and a screech at 139,918 miles. The pulley was bouncing when the engine was idling, causing the drive belt to chirp.Most of the time, though, the idle is noticeably rougher than before, but no clanking or ticking–just the noise of the vibration, which can be fairly loud if it’s idling for very long. No question, though, that it’s usually rougher than before the timing belt replacement. The engine mounts are a good point that I had wondered about. Oct 03, 2011 · Ignition coils can go bad. The common defect is failure of winding insulation, causing reduced coil output. Stock coils should measure over 8K ohms at 70 degrees Fahrenheit. Do not measure when hot. Resistance will be higher. TPS can be faulty, and is tested like EGR potentiometer, but does not generally cause rough idle. The serpentine belt, also known as the drive belt, is a belt on a car engine that works with the idler, tensioner, and Since the serpentine belt helps provide power to cool the engine, a failing belt can cause your This article originally appeared on YourMechanic.com as Symptoms of a Bad or Failing...So maybe renting a serpentine belt tool, and quickly removing the belt so you can hand test the pulleys to see if some are sticking. Doing both of these tests should be a lot less time than tearing down to the LIM. Not leaking any power steering fluid either? Sounds unlikely for your symptoms, but it can cause it to buck more than be rough at idle. Jan 18, 2013 · The serpentine belt controls the water pump on many cars, however the OP stated vehicle is at normal operating temperature. If the water pump stops turning due to the serpentine belt the engine temp will spike dramatically. Besides, the water pump for the 06' xterra is timing belt driven. Some other things that could cause rough engine idle are bad spark plugs, bad spark plug wires, bad ignition coils, timing being off, bad timing belt, bad timing chain etc. Your fuel injectors could also be partially clogged or not working properly which can cause a misfire and rough engine idle.

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A broken timing belt can lead to catastrophic engine failure. Here are 5 symptoms of a bad timing This will cause the engine to fail altogether. The only way to recover from this is to rebuild the entire motor. The worst symptom you can experience is having the timing belt cut off or broken completely.He was staring into space. I was sorry for him: I suspected at once that his unfortunate brother had been causing trouble again. He won't find life so easy then. I shall have thirty thousand pounds by the time I'm fifty. We shall see what is really best to work or to be idle."Jun 06, 2009 · i have a 98 mazda 626 4cylynder with 167K miles..the runs great.the check engine light does not come on.i did a tune up on it..just haven't changed the ac and alternator belts on it yet.the car runs smooth and quite til i turn the ac compressor on then it idles rough..the rpms drop from a steady 7500 to about 6500..it runs okay while i'm driving just rough at lights and in park.rough can also ... So we were thrilled when a community sidewalk project was announced, and watched eagerly as paving neared completion. Then the worst thing happened: wishful thinking and reality collided. (bad - worse - the worst).

No. The idler pulley only maintains tension on the serpentine belt. A faulty idler pulley can cause noise and a loose tensioner arm can cause belt slipping but other than having a similar name, it ... May 23, 2014 · So much so, i occasionally have a "chatter" at idle that I've concluded is the serpentine belt tensioner striking its stop. if you recall, what started this was a tensioner that was cracked apparently form the same thing, but now with a whole new timing set, problem still seems to be the same. Jan 03, 2020 · You can refer to the owner’s manual for figures, but even these should be used as a rough figure. Ensure you get a professional to inspect your serpentine and timing belt (or chain) before the number of miles recommended by the manufacturer. This will help prevent costly repairs in the future. Monitor fuel economy Jun 17, 2014 · This pressure causes a piston to move, and that piston directs the gears to steer the car. When the power steering fails, the wheels of the car become exponentially more difficult to turn. The wheels will turn, but the force required to make this happen can be unexpected and problematic. If power steering failure occurs while a car is in motion ... I know all of the rough idle that engine itself can make. So it has got to be one of the mechanical parts. Here's what I'm thinking. 1) Bad pulley system. Perhaps one of the tensioner/pulley went bad after replacing fan clutch. New part's installed, bad part couldn't keep up, has gotten worse. Not a great theory but it's possible.. 2) Engine mount

That serpentine belt noise could be more serious than you think. Troubleshoot your belt with the help of this guide and fix it. Trying to ignore it, or worse using belt dressing to stop the noise without checking for the root cause of the problem is asking for trouble.SOURCE: Can a bad idler pulley on a 1997 saturn with a 1.9. Sometimes the idler pulley can begin to rattle a bit, the noise is most often associated with the the idle pulley damper mounts. Just a tiny movement here can cause that audible clicking. It does not harm the engine and can usually be heard only at idle so if yo can live with it, great.


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