new timing belt and new plugs it runs rough
new timming belt and new plugs it runs rough why.
My car's transmission is unknown to me.
Experienced mechanics share their insights in answering this question :
If the rough running started AFTER the belt was installed, it is possible that the new belt is mis-positioned and/or the ignition timing adjustment at the distributor is wrong. Generally, rough running is due to a mechanical (e.g., uneven cylinder compression and/or valve issue) or ignition, fuel, or air induction faults. Plugs, by the way, are merely one component of the ignition system. So, for example, new plugs won’t solve an ignition system problem if you "also" have defective plug wires or a problem with the distributor. In your circumstance, if the timing belt was properly installed and the base ignition timing, and timing advance, are within spec., an engine Diagnostic has to be performed to identify the root issue(s). This is a standard, and quite common service, and YourMechanic performs uncounted of these daily on a mobile basis. Feel free to inquire so that we can see if your vehicle can be restored to good running condition.
How to Identify and Fix Common car Problems ?
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It is possible that something was not connected or was not connected properly. That could account for both a “wind” noise and both vibration under the hood. A belt that is too loose could cause some strange noises or vibrations. One that is too tight will usually whine.
No timing belt will give an increase in performance – it`s just not possible. Its main job is to keep the timing in check. Having your timing belt replaced and noticing an increase in performance is just a mix of the engine operating at peak efficiency and a good hit of placebo effect thrown in for good measure!
When your car`s timing belt is broken or irreplaceable, your engine will not be able to ignite or turn over properly. This means when you turn the key, you may hear the starter motor engage, but since the timing belt is responsible for operating the crank and shaft, it will not fully ignite.
A squealing noise could be from a lack of tension between the belt and pulleys. Worn belt ribs and a misaligned belt can result from an improper installation that can cause an annoying chirping sound. Timing belts are known to occasionally have a ticking sound as well that can stem from low engine oil or other issues.
Squealing is common for a loose belt, which can indicate wear and the need for replacement. If the belt is fairly new, yet is still making a noise, the driver should have the tension adjusted, but still have the belt visually checked for unusual wear.
The timing belt synchronises the movement of the pistons and engine valves. Wear and tear of the timing belt can affect this process, also affecting engine performance. In this case, you`re likely to notice that your car struggles to switch gears or accelerate.
Misalignment is one of the main causes of timing belt drive failure. Excessive or uneven tooth wear, belt tracking and tensile failure can all be attributed to misalignment. By checking and aligning your shafts and timing pulleys you can increase the life of your timing belts and save yourself lots of downtime.
A timing belt slipping is one of the most common ways a timing belt can fail. The timing belt in your vehicle uses specially designed rubber. Over time, this rubber will break down and eventually lose its “teeth”. When the teeth break off, the belt can slip.
Cambelts or timing belts usually need to be replaced, usually between 40,000 and 100,000 miles. Alternatively, for lower mileage cars, the belt is advised to be replaced around four or five years.
Ticking Sounds
The teeth of the timing belt make it sound different from the other belts in your engine, such as a serpentine belt. Generally, a timing belt that goes bad makes a noticeable ticking or clicking timing belt sound that is unusual.
Though timing belts don`t need lubrication, you can lubricate a timing chain. This keeps the rotational system of the crankshaft and camshaft(s) running smoothly. DIY Car Service Parts stocks a wide range of lubricants so that you can maintain your car`s health.
Belt “Squealing” or “Whining” Noises
A common warning sign of an issue with your timing belt pulley is a high pitched squealing sound coming from the belt. Think of this sound as an alarm bell signaling a need for repair or replacement.
Our research has shown two main causes of belt noise:
The belt squeals because there is improper tension in the belt drive system. This is usually caused by a worn automatic tensioner, but other causes can include a contaminated belt (oil, belt dressing, etc.) or a belt that is too long or worn out.
1: Engine Issues at High RPM
Your timing belt consists of rubber teeth that fit into the gears in your crankshaft. As your timing belt wears, these teeth will become deteriorated, meaning that at higher RPM it will have trouble gripping the gears.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
01 mustang v6 running rough at idle and drive. Please help. Replaced a bunch, still can’t figure out issue.
ANSWER : This may be a sign of a faulty MAP sensor as the vehicle responds adversely to a load put on the motor (i.e. putting it in gear, turning on AC or engaging the brakes). The Manifold Absolute Pressure (MAP) sensor senses engine load and generates a signal that is proportional to the amount of vacuum in the intake manifold. The engine computer then uses this information to adjust ignition timing and fuel enrichment. When the engine is working hard, intake vacuum drops as the throttle opens wide. The engine takes in more air, which requires more fuel to keep the air/fuel ratio in balance. When the computer reads a heavy load signal from the MAP sensor, it adjusts the fuel mixture to slightly more rich than normal so the engine can produce more power. The computer will then retard (back off) ignition timing slightly to prevent detonation that can damage the engine and decrease performance. This may also be caused by other closely related components such as a dirty or failing mass air-flow sensor, a faulty throttle position sensor or potentially a vacuum leak. I would recommend having an expert from YourMechanic come to your location to diagnose and inspect your vehicle.
Read Full Q/A … : new timing belt and new plugs it runs rough
new timing belt and new plugs it runs rough
ANSWER : If the rough running started AFTER the belt was installed, it is possible that the new belt is mis-positioned and/or the ignition timing adjustment at the distributor is wrong. Generally, rough running is due to a mechanical (e.g., uneven cylinder compression and/or valve issue) or ignition, fuel, or air induction faults. Plugs, by the way, are merely one component of the ignition system. So, for example, new plugs won’t solve an ignition system problem if you "also" have defective plug wires or a problem with the distributor. In your circumstance, if the timing belt was properly installed and the base ignition timing, and timing advance, are within spec., an engine Diagnostic has to be performed to identify the root issue(s). This is a standard, and quite common service, and YourMechanic performs uncounted of these daily on a mobile basis. Feel free to inquire so that we can see if your vehicle can be restored to good running condition.
Read Full Q/A … : new timing belt and new plugs it runs rough
My 01′ Tahoe want stay running when the MFS is plugged in I’ve put a new one on and new plugs too but it’s doing the same thing
ANSWER : The mass air flow sensor (MAF) uses a heated wire to determine the amount of air entering the engine. It then relays this information to the powertrain control module (PCM), where it it used to determine fuel injector control. There are three wires going to the MAF on your vehicle: ground (black/white), power (pink) and the return signal to the PCM (yellow). A problem anywhere in this circuit can (including the PCM itself) can cause the problems you’re having. I recommend having a professional, such as one from YourMechanic, diagnose and repair the problem for you.
Read Full Q/A … : new timing belt and new plugs it runs rough
The truck intermittently, has a very rough idle, and runs rough,usually after warming up.
ANSWER : Hello. This can be caused by a number of different things. If this occurred right after you had gotten fuel then I would start by testing the fuel pressure. I would do this when the vehicle starts running poorly. It is possible that the bad fuel contaminated the fuel pump and it is not putting out the right pressure. If the fuel pressure is fine then I would check the other sensors readings with a scan tool. One other common thing that I have seen on this engine is a leaking intake manifold gasket. It starts leaking on the bottom side and that leak causes the MAF and MAP to not read correctly which causes it to run like this. If you would like to have this rough running condition looked at, consider having a YourMechanic certified techniciancan come to your home or office to diagnose why it is running rough.
Read Full Q/A … : new timing belt and new plugs it runs rough
Vehicle started running rough while driving. Now running/idling rough running rich.
ANSWER : Hello. From the symptoms you describe, it would appear that your vehicle is having issues with the oxygen sensors. P0172 is the code for bank 1 being too rich. This can be caused by a wide variety of issues. The other two codes are for the sensors on bank 2, having excessively high voltage.
This may be due to the rich condition, faulty oxygen sensors, or faulty wiring. The black smoke and soot is a result of excessive fuel that is not being properly burned, and exiting the tailpipe as smoke. A few common causes for these symptoms are a bad fuel pump, fuel pressure regulator, or engine management sensor. As engine management systems can sometimes be difficult to diagnose, I would recommend having the rough idling issue inspected by a professional technician.
Read Full Q/A … : new timing belt and new plugs it runs rough
cold rough idle and P0303 code , run great after clearing code and warming up,
ANSWER : Code P0303 suggests a misfire in cylinder #3. This can happen for many reasons such as a vacuum leak, weak fuel pump (pressure), bad ignition coil, low voltage to the fuel injectors (causing pulse problems) or a faulty mass air flow sensor, all of which can cause an imbalance in the air/fuel charge in that cylinder. Try checking to see if you are able to replicate the misfire and see if it happens more under load or at idle or if it is completely just intermittent. This may help to narrow down what types of components to check.
Read Full Q/A … : new timing belt and new plugs it runs rough
Timing belt is tight and yet appears to be slipping several teeth when belt is rotated,
ANSWER : This is okay since there are more notches on the belt than the amount on the sprockets. Once you aligned the first time the belt marks will almost never line up perfectly again. The marks are used to put the belt on correctly. They aren’t used as an indicator after the engine is turned again. You should be okay to start the motor as long as timing marks on pulleys line up. If you run into any issues, have a certified technician, like one from YourMechanic, assist you with the replacement of the timing belt.
Read Full Q/A … : new timing belt and new plugs it runs rough
1992 Acura Legend, when the timing belt goes, is it common for the valves to bend?
ANSWER : If the timing belt break off, the engine’s pistons will hit the valves as the pistons are moving. The engine is an interference engine and can cause damage to the internals of the engine. The last time the belt came off, the engine may have been running at an idle or not under power. It is possible for the valves to be bent. What I recommend doing is performing a leak down test on the engine with a timing belt on the engine and properly timed to determine if the valves were in fact bent. If all of the cylinders have a 80 percent hold and not leaking, then the engine is fine. If there is a mass leak on a cylinder, then the piston did some internal damage. I recommend seeking out a professional, such as one from Your Mechanic, to help you check your engine’s valve train with a leak down tester.
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Billing and parts question was sent to CS for the cost of parts and labor for valve train and related parts from a broken timing belt for a 1992 Acura Legend with a V6-3.2L engine.
Read Full Q/A … : new timing belt and new plugs it runs rough
