There was a slight wobble in the flex plate, due to the distortion from the crack. The flex plate usually makes a tinny or clanging some times chirping sound while starting,shutting off, accelerating or decelerating. The sound is very similar to a bad engine rod and is often misdiagnosed. This can distort, twist, and eventually brake the flex plate. Mine cracked between two of the large holes not the bolt holes. Descriptions of the sound include clanking, chirping and a light knocking. Cracked flex plate between engine and transmission. Make sure that the tire, the jack, and any other loose items there are secured tightly, so that they cant produce any rattling noises.
Does sound like the plate but you could also check that you have not developed excessive end float on the crank shaft. Flex plate noises are typically a higher pitched more metallic rapping type noise, while a rod bearing will have a lower pitched knocking noise. The vehicles flex plate is an essential part of your driveshaft. Remove the inspection cover from the driver side of the bell housing see if the converter is loose. I checked oil pressure, pulled spark plug boots while truck was running but no. This video demonstrates the sound, diagnosis and solution to what sounded like a. If in fact they did, perhaps mine will last longer. Do you see any bolts, nuts, or other items that can make these rattling noises when. If it sounds like it is coming from around the tranny you may have a cracked flex plate. Well i checked torque converter bolts for loosemess and they were fine no sighns of cracked flex plate what so ever im gonna pop off the valve cover as i had it running and drove it up on ramps the knocking noise even under a load could hardley hear it and the longer i had it running the quitter it got that doesnt sound like a rod or main or piston sounds more like a calapsed lifter. As i was driving into work this morning i noticed a sound that seemed to come from the middle of the car. What are the likely causes of failure so maybe i wont do it again. Maybe the flexplate or converter bolt is loose and not able to spin freely.
I was told by several people it could be a cracked flex plate. Careful though, because after 2001 ford changed the way the tach received electrical signal and this is. Jun 11, 2019 cost to replace a cracked flex plate in a 2014 dodge grand caravan. Yeah the ting ting ting noise sounds about right i had a 302 with a broken flexplate, it was cracked between each bolt hole and fell apart in two pieces when i pulled it out. In the event that the cars flex plate is cracked or otherwise damaged, replacement of the old part will be absolutely essential before the vehicle can be driven. Jun 15, 2009 first check your flywheel bolts,as the noise can be. And by hand, i mean with large screwdrivers and such.
The problem turned out to be a cracked flex plate which is much cheaper than rebuilding or replacing the engine. Hey guys, im new to this group so dont know what to expect with this post. Well, the tranny shop tells me that its a cracked flex plate. I have the back seats out so there isnt too much sound dampening back there, and i have been listening for any odd noises over the past few weeks. How to know if a flexplate is warped by chris stevenson. This leaves nearly a 14 inch gap between the mounting holes in the converter and the face of the flex plate. Jeep grand cherokee questions is it common for a loose flex. When a flex disc is cracked, falling apart, or missing its bolts, these symptoms start to appear. All of the teeth look fine and i cant see any cracks in the flexplate. I would have picked her up today, but the shop got the wrong replacement flex plate shipped to them supplier had the wrong plate in the box.
It connects the crankshaft to the torque converter of the transmission. It sure sounds like an exhaust leak to me to,id check. Cracked fly wheel usually gets louder as it gets hotter, or under heavier load. I borrowed an inspection camera to check around the flexplate and hopefully will give me. I really hope thats what it is, and that the noise will go away when replaced. When a flexplate cracks, it often produces a loud knocking noise as it rotates. Anyways, about a year ago i had my transmission rebuilt and with it i got a new billet tc. At high speeds, the flexplate like most engine parts endures a. Diagnosing noises in your car page 3 ericthecarguy. I tried to start the car again and it struggled, got it to turn over abit but sound like metal was grinding but did not start. I did not remove the starter and check for loose bolts because i wanted to check with you guys again about that inspection cover. Cost to replace a cracked flex plate in a 2014 dodge grand caravan.
Notice if the starter has a low, medium or highpitched whine while spinning. I have seen a bunch where motor was pulled for said rod knock and broken flex plate was found. Nov 05, 2017 personally never ran into a cracked flexplate on a hemi. Weve got tough yet affordable flexplates for stock and mildly modified street vehicles. Long story short, will a broken or cracked flexplate cause an engine not to turn over. I would take that cover off and turn the flywheel by hand to see if you can see a loose bolt. Rattling noises from these areas will usually be heard when going around tight corners or hitting bumps. There are tough flexplatesand there are chuck norriscaliber flexplates. Loose torque converter bolts and cracked flex plates. I put some lucas transmission additive in the other day hoping it would quiet the noise if it is a torque converter shudder or vibration, no change yet. The reason for the sound involves the flexplates location and its function. If a flex plate ring gear is damaged, replace the flex plate. Happened in 2016 at 30k miles and was replaced under warranty. If the tachometer doesnt move, the cps is probably bad.
Also check for loose torque converter attaching bolts. Yesterday the flex plate on my 2000 toyota 4runner w 155k miles was replaced. I would replace the pcv as sometimes this can make noises. I would check and make sure you are not missing the alignment dowells for the bellhousing bolts to the engine. Proposed the issue was the flex plate rather then the engine. An easy way to diagnose a failed cps is to check for tach movement when you crank the engine over. Just like the other parts of a vehicle, a flex disc needs a regular check up. The symptom was a ticking sound under certain conditions. Dec 28, 2004 right off the bat, they said it didnt sound like piston slap. My 95 aw4 tranny xj makes this inconsistent, noise similar to yours, and after checking for loose flex plate to torque converter bolts i did find. Noisy flex plate, keeps cracking around mount ing fixya. Start your vehicle as normal, but pay particular attention to the noise of the starter while it spins and engages the flexplate, or torque converter if your vehicle does not have a toothed flex plate.
The unwary wont notice especially since it is so hard to see up in there. Anyone ever hear of a 4th gen ram with that problem. Because the flex plate is an integral part of your cars powertrain, and replacing it involves removing the transmission, a significant amount of labor will be involved. Use exact replacements as the bolts are specially heattreated. Lately ive been noticing some really bad rattling noises coming from under the truck. A dropped bolt will definitely make noise but the noise typically doesnt last long since something breaks. Mar 03, 2015 in this video i talk about a noise coming between the engine and transmission. Help identify this tapping noise dodge ram forum dodge. If you have an automatic transmission, you have a flex plate, and it is a possiblity, and it can be checked without removing the engine andor transmission. New engine, flexplate, torque converter flex plate noise. In this video i talk about a noise coming between the engine and transmission. Im thinking broken flex plate in my 73 blazer however when im in gear low rpms and rolling down the street i hear the.
What causes a flywheel to crack numerous times justanswer. Because the flex plate is an integral part of your cars powertrain, and replacing it involves removing the. Is it common for a loose flex plate bolts to sound like a. Checked inspection plate, no carnage but wasnt able to rotate by hand. Im not one on hybrids, dont like them and in my opinion theyre worthless as theyre not really good in any one thing and they rode very rough when compared to a dedicated at tire or highway tire. After they checked it out, they said it was a cracked flex plate between the tranny and engine, and that this is a known issue with gm. One of the other mechanics i work with forgot to transfer them over to a new tranny on a car once and it came back in 300 miles with a cracked flex plate. I dont recognize this noise so ive been trying to find videos with similiar noises. Im thinking broken flex plate in my 73 blazer however when im in gear low rpms and rolling down the street i hear the consistent pinging, but if i put the truck in neutral while still moving the noise quits. That 1989 corolla of yours makes all sorts of noises toyota hoped it never would, most of which are as harmless as they are annoying, yet some of which can be as detrimental as they are deafening. I took it by a transmission shop, hes 99% sure its a flexplatetc noise.
It makes a bad vibration at about 2k, but not specifically a rattleknock. Sep 17, 20 ive had a bad rattle coming from the area of the bell housing. Sometimes the flex plate will crack and as a result it can cause noise. Symptoms of a cracked flexplate general discussion modern. I put in a new flexplate stock 400 couldnt snag an sfi quick. The first signs were visible when i removed the dust cover and turned the engine over. So while youre in there, check the flex plate for cracks or damage, you might just find the source of your noise this way. In january 2008 the original flywheel cracked and was replaced with a napa flywheel. Hand turning it over i found that the new flex plate is not running true. As the cars flex plate corrodes from exposure, the unit can become damaged and fail. Those factors ensure that when the engine starts and the driver puts it in drive, the cracked flexplate s movement will create a noise. Its hard to say because the noise doesnt have a rhythm to it like most engine related noises do.
Disable spark to the suspected cylinder, listen for the noise to quiet down some and know for sure that youve got. Symptoms of a cracked flexplate general discussion. The same things that cause the flexplate to crack can also cause transmission problems. And we also have heavyduty and sfiapproved flexplates for highhorsepower, highrpm race applications. If you happen to have a manual transmission, this does not apply. I triple checked which bolts to get with the torque converter company.
Jeep grand cherokee questions is it common for a loose. If you have an automatic transmission, you have a flex plate, and it is a possiblity, and it can be checked without removing the. The classic and most obvious symptom of a cracked flexplate involves the sound it makes while the engine is running. Furthermore, if not properly diagnosed it will occur again and often damage to the transmission may follow. Ive had a bad rattle coming from the area of the bell housing. The first place to start with any automatic transmission problem is checking your. The transmission was replaced in 2005 with a remanufactured ford transmission. Though i never heard about chrysler issuing a better replacement flex plate part. Im not driving it for fear of ripping the center section. Could have a cracked rocker arm, but youd be able to pin point that with a stethoscope.
The flex plate is bolted onto the end of the crankshaft and is between the engine and transmission. I packed up and headed inside without being able to crawl under and check the plate. How to know if a flexplate is warped it still runs. The first indication was the it was hitting the starter teeth. Similarly, a cracked flywheel will offer some great noises like a rod, ect. Symptoms of a cracked flexplate welcome to modern mopar forum. The reason for the sound involves the flexplate s location and its function. During every oil change, check up on it along with. Start the engine, put in drive, foot on the brake, give it some rpm, does that quiet the noise loose bolts and cracked flex will usually be less noise doing that. I dont recognize this noise so ive been trying to find videos with similiar. Cant pinpoint the source of the noise im thinking either the flexplate or torque converter its a 2000 5.
Im assuming this is for your 67 and you have the borgwarner automatic. Its a brand new upgraded flexplate and torque converter. Pull lower pan, check rod movement,or remove bearing cap. You will find that the lip around the outside of the flex plate bottoms against the outside rim of the torque converter. Noise in my chevrolet silverado sounds like flywheel. A cracked flex plate is almost always a sign of other problems. In hind sight even if it had been cracked then i would not have seen it as all the damage is hidden behind the centre boss. Well, 2 flex plates later he figured out what was causing the problem. The same things that cause the flexplate to crack can also cause transmission.
I borrowed an inspection camera to check around the flexplate and hopefully will give me better results. I just thought id post a short video of what a cracked flexplate on a 6. Mercedes flex disc problems, symptoms, cost mb medic. Ah, well, this is the first real money ive put into keeping the old girl on the road. Oct 27, 2014 cant pinpoint the source of the noise im thinking either the flexplate or torque converter its a 2000 5. Check for the sources of these noises in each of your cars interior storage spaces. Sounds like rod knock maintenancerepairs car talk community. I heard noises reminescent of last january and sure enough. This video demonstrates the sound, diagnosis and solution to what sounded like a rod knocking on a 1999 toyota 4runner with a 3. Tc threads to flex plate stripped ford powerstroke. The part i am referring to is between the torque converter and flywheel, which would. Noises are very hard to diagnose without actually hearing it. Cost to replace a cracked flex plate in a 2014 dodge grand. With child support killing my paycheck i can barely afford gas in my car to go to work and food for the week.
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