Change my timing chain. Got it on time from upper to lower chain tensioners and now I have no spark.
I've decided to put a new timing chain in my car it's almost at 300,000 miles I noticed a grinding noise inside my engine bay so I had to go look into it I found the problem and it turned out to be my timing chain on the top when I took it off I put the new one back on with new guys and new tensioner I connected everything back together and now I have no spark I don't know what the issue is all the connectors are connected I'm not getting any codes from my Alltel scan tool I don't know what the problem is I've checked wires I check grounds I've checked for broken wi
Experienced mechanics share their insights in answering this question :
Hey there. I would recommend checking the camshaft position sensor as this sensor is located near the timing components, to be sure that it is plugged in correctly and working properly. I would also suggest checking the crankshaft position sensor just to be sure it is also plugged in correctly.
As you know, both of these sensors will impact whether or not the motor will produce spark. If either of these are not the problem, you may want to then begin testing the ignition coils for power to be sure they are providing current to the spark plug wires. If you would like to have a professional scope this out for you, a certified technician from YourMechanic can come to your car’s location to inspect the issue getting spark.
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A loose timing chain can also cause you to have trouble starting the engine because the combustion of the engine is compromised.
Rattling Sound on Starting the Engine or Idling A common finding in a vehicle with a bad timing chain is unusual rattling noise when the engine is started or when brakes are engaged. It happens due to the loose or stretched timing chain that shakes and rattles while rotating when the engine motor is running.
The Nissan Almera has a timing chain and NOT a timing belt.
A malfunctioning timing chain can result in decreased performance, engine misfires, and even catastrophic engine failure. Understanding the signs of a timing chain problem and knowing how to troubleshoot the issue can save you time, and money, and potentially prevent further damage to your vehicle.
The relationship between crank and cam timing events can also cause no spark, especially on Chrysler products. On these vehicles, the PCM won`t trigger the ignition coil if the cam and crank are out-of-sync.
Yes. If the valves are not fully closing due to a slipped chain or belt it will cause a lack of compression.
If the tensioner is loose the belts may squeak or squeal, especially when the engine is first started. It is also possible for the tensioner pulley or bearing to wear out, in which case the vehicle will produce a grinding noise from the pulley.
Your engine does not have a timing belt, it has a timing chain. So if you change your oil every 3-4k, the chain can go for 250k.
Both the V6 and the 4 cylinder engine in the 2005 Altima have timing chains, not belts, so you don`t need to worry about changing it.
A Bad Crankshaft Position Sensor The crankshaft position sensor monitors the position and rotational speeds of the crankshaft. Without the crank sensor, the engine control module (ECM) wouldn`t know when to fire the fuel injectors and ignite the spark plugs.
Setting the correct ignition timing is crucial in the performance of an engine. Sparks occurring too soon or too late in the engine cycle are often responsible for excessive vibrations and even engine damage. The ignition timing affects many variables including engine longevity, fuel economy, and engine power.
If your ignition timing is over advanced, it means the engine is firing the spark plug too soon. When this happens, the air/fuel mixture ignites too early and causes detonation, which makes the knocking noise you hear. This can be extremely destructive to the engine and should be addressed immediately.
Loss of performance, rough idling, cylinder misfires, and starting issues are all common symptoms of low compression. Unfortunately, low compression can be caused by a number of engine problems. The majority of the problems relate to the internal engine components like the valves, pistons, and cylinder walls.
A broken timing chain will allow the valves to come into contact with the pistons in severe failures on some engine models, resulting in very loud knocking and banging noises, catastrophic engine failure, and damage to the valves and pistons.
Bad Sensors
One common culprit for this problem is the crankshaft position sensor, which measures the position and speed of the crankshaft. The computer uses the information from this sensor to know when to fire the spark plugs. If the sensor isn`t working, the spark plugs won`t fire, keeping the engine from starting.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
Change my timing chain. Got it on time from upper to lower chain tensioners and now I have no spark.
ANSWER : Hey there. I would recommend checking the camshaft position sensor as this sensor is located near the timing components, to be sure that it is plugged in correctly and working properly. I would also suggest checking the crankshaft position sensor just to be sure it is also plugged in correctly.
As you know, both of these sensors will impact whether or not the motor will produce spark. If either of these are not the problem, you may want to then begin testing the ignition coils for power to be sure they are providing current to the spark plug wires. If you would like to have a professional scope this out for you, a certified technician from YourMechanic can come to your car’s location to inspect the issue getting spark.
need a way to retain the timing chain
ANSWER : The best way to approach this unfortunately is by using a timing chain tool retainer/holder tool. You may consider having an expert from YourMechanic come to your home replace the timing chain.
Timing chain positioning
ANSWER : This system is a bit complex. I can give you some instructions, but I highly recommend getting a hold of a repair manual or purchasing a yearly subscription for just your vehicle from AllData. It is only $25 for a years subscription from AllData.
There are two separate sets of marks on this system. One set is for aligning the timing chain to the camshaft gears and the intermediate shaft gear. There will be marks on the chain that raps around the crankshaft gear as well. These marks will not line up after you turn the motor over.The other marks are on the inside of the camshaft gears and align with the cylinder head parting line. If you were to draw a ling through the center of both camshaft gears, they should line up with that imaginary line.
The crankshaft key way should be aligned with the mating face of the main bearing cap. You can confirm it is in the correct position by verifying the number one piston is at top dead center. If you have removed the balance shaft timing chain, these marks really need a visual diagram to understand where they should be aligned. Without a diagram I am not very confident it can be explained very clearly.
This may be difficult to to follow, so again I highly recommend purchasing a repair manual in digital form or a book. If you feel this is over your head, I recommend the following inspection to help you out. Timing chain replacement
Good luck! I hope I was able to help you.
Is the 2009 Sentra 2.0L a timing chain or timing belt? Also when would that need changing?
ANSWER : Hi there. One of the cool things about Nissan four cylinder engines is that they have a timing chain as opposed to a belt. This helps to extend parts life and reduce internal engine failure. The key is to stay on top of routine oil changes and service; including flushing radiator frequently to avoid overheating problems.
Spark plug chaos. Rubber stoppers are preventing the spark plugs from coming out.
ANSWER : Hi there. Try using a pair of small needle nose pliers to pull off the rubber boots from the spark plugs. As you pull, twist the rubber boots to break them free. If you cannot get the rubber boots off, then try using some mineral oil on the boots to aid them off, then clean off the oil with soap and water with degreaser. If you need further assistance with removing the boots from the spark plugs, then seek out a professional, such as one from Your Mechanic, to help you.
My timing belt snapped about a year ago , car been sitting for about a year , just recently got the motivation to change the belt
ANSWER : Having the timing belt off by one tooth is enough to cause problems. I suggest having a certified technician, like one from YourMechanic, determine the exact cause of your starting issue and to make sure that you have no further engine damage.
Hi I have a 2004 2.4L automatic Hyundai Sonata. I change the timing belt as it has chewed teeth. I also change the headgasket and
ANSWER : Hi there. Since you completed so many different repairs, it unfortunately opens the door to multiple possible issues that might be the source of your hard to start issue. The first thing I would do is knock off the easy checks; by verifying that all electrical connections, fuel and / or vacuum lines are correctly attached. If everything checks out there, I would either replace the wiring harness to the crankshaft position sensor or check the output from the PCM. Most of the time when crankshaft position sensor issues exist, it’s the wiring harness itself that is faulty. Try those steps and if you still need a hand diagnosing your problem, feel free to contact one of our mobile mechanics and they can come to your location and complete a car is hard to start inspection.
Timing chain tensioner oil leak 2009 Toyota Corolla
ANSWER : Hello – you are being misled. The timing chain tensioner does have a gasket that gets old and brittle over time and leaks. BUT – it is fairly accessible, is external on the engine, and can be replaced inside 2 hours. The tensioner uses engine oil presssure to keep the timing chain tight (very important!), hence the tendency to dribble oil after the years roll by. I would recommend a timing chain tensioner gasket replacement by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, and repair this leak.
