As cdnsarguy posts, it could very well be a cracked flex plate, not engine related at all. 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. I would assume it would envolve unbolting trans and moving it back. Diagnose knocking noise cracked flexplate duration. More severe misalignment can break a flexplate in 15,000 to 30,000 miles. I cracked two flexplates on a 350 olds i drove balls out all the time, until i threw away the. The classic and most obvious symptom of a cracked flexplate involves the sound it makes while the engine is running. Pull one plug wire at a time while its running, and if one cylinder has a knock, it will stop or change tone when you pull the plug on the effected cylinder. Engine knock discussion in general discussions started by planefixer, may 4, 2016.
Can anyone help me figure out if this noise is just injector rattle or a cracked flexplate. You probably dont need to do any more return tests, but if you want to go ahead and let me know the results. On the way home i stopped at a traffic light and noticed an unusual dull sounding rattling noise coming from the firewallfloorengine area. There are tough flexplatesand there are chuck norriscaliber flexplates. Most torque converter rebuilders routinely deal with the undersize pilots on gm 298mm converters. First check your flywheel bolts,as the noise can be transferred.
Well when i installed the new flex plate, the vibration was gone. As i was driving into work this morning i noticed a sound that seemed to come from the middle of the car. No matter what youre driving, we have the right cummins flex plate for your vehicle new and used automotive parts and accessories on sale. Transmission flex plate sinister diesel flex plate. I had an engine knock so i replaced the in tank fuel pump didnt fix problem. I checked the flex plate bolts and they are tight and the flexplate looks just fine.
I then figured that my flexplate had been cracked for a few weeks or a month and that it was the vibration i was feeling. Descriptions of the sound include clanking, chirping and a light knocking. This will take you directly to the resources we offer to help you fix the problem. Excessive crankshaft flange runout or end plate can also cause flexplate cracking. Loud knocking sound from torque converter or flywheel. No matter what youre driving, we have the right cummins flex plate for your automobile. What are the likely causes of failure so maybe i wont do it again. Arp the world leader in fastener technology has just released a new pro series flexplate bolt kit for 19892007 dodge cummins 5. I have an 05 dodge 2500 with a cummins common rail. Arp flexplate bolts feature an exclusive flat 12 point head design and a larger than stock underhead radius for. Ive been to the dealer and they said they compared it to another truck of theirs and its normal.
Kit includes a set of eight 8740 pro series flexplate bolts that are rated at 200,000 psi that replace the factory dodge bolts. Jun 19, 2007 what does a cracked flexplate sound like. Well, with the dodge cummins, one of the weakest links is the factory flexplate, but the bd flexplate can change all that. When i bought my m1009 it had a cracked flywheel and was making the typical rubbing sound when in reverse.
May 22, 2006 mechanical fuel pump, loose harmonic balancer, loose torque converter and the aforementioned cracked flex plate have been some that i have experienced. Ats offers this billet flexplate upgrade option for the 19892007 dodge ram 5. Replaced the two with low exhaust temps smoke almost went away. Must use ats backing plate 11907 ats billet flex plates features and benefits. It is common either to build up the pilot by welding and then remachine, or to sleeve the pilot area. Get the best deals on cummins car and truck flywheels, flexplates and parts when you shop the largest online selection at. The atp heavy duty flex plate offers superior strength because the ring gear is welded on both sides to the center plate. This sweepstakes is open to legal residents of the fifty united states excluding new york, florida and vermont, who are twenty one 21 years of age or older. While these products are identical to the certified versions, the sfi certification time period has lapsed. Get the best deals on cummins car and truck flywheels, flexplates and parts when you shop the largest. The noise only happens at idle speed, as soon as you touch the accelerator it goes.
I tested a friends 2012 cummins g56 and it had this noise but it was so faint i had to strain to hear it. A loose bolt on a flexplate or a crack between its bolt holes. Like loss of power, this symptom could be caused by many factors other than a cracked flexplate. If its a rod knock then while listening with your stethoscope pull one plug wire at a time sliding a test light down between the plug wire and boot also works. May 26, 2004 a friend has had noise on his 93 ctd check flex plate hes cracked 2 in 150k other than that not sure my.
Diesel engine knock and noise problems a quick reference. However, a cracked flexplate has been reported to reduce gas mileage, due to the inefficiency it creates in the engine when it cannot perform as intended. I have owned three dodges 2002 2500 wcummins, 2004 2500 wcummins, and 2006 3500 with cummins. I wonder how cummins came up with the idea that carbon. I thought it sounded more like a popping noise, rather than a knocking noise. Using our website search box for both tech help and products, enter the words of the solution. May 23, 2008 can a loose flex plate and torque converter on my 2007 dodge ram diesel cause engine damage over time. I know it dosent have a chain so i took it to a local diesel shop and it turned out to be a bad flex plate probably caused by loose bolts. This listing is for one new allison flex plate kit assembly 5. Can a loose flex plate and torque converter on my 2007 dodge. The problem turned out to be a cracked flex plate which. Well, with the dodge cummins, one of the weakest links is the factory flex plate, but the bd flex plate can change all that.
Most flex plates are made of a thick piece of sheet metal with bolt holes for the torque converter and teeth for the starter. Weve got tough yet affordable flexplates for stock and mildly modified street vehicles. If you do pull the trans out to look, then you might want to atleast upgrade the plate. Arp flexplate bolt kit for 19892007 dodge cummins 5.
New and used automotive parts and accessories on sale. Prw 1835910 xtreme duty sfirated internal balance 152 teeth. I did not know this at the time i bought it as it was the first time in a long time owning an automatic, so all of my flexplate and torque converter knowledge have come from the last year. And we also have heavyduty and sfiapproved flexplates for highhorsepower, highrpm race applications. Had an engine knock, cant figure out where its coming from, no power or performance lost, just noisy. Although similar flex plates are used on gas engined mercedes, the flex plate problems i have seen have always been mounted to diesel engines. The symptom was a ticking sound under certain conditions. Checked inspection plate, no carnage but wasnt able to rotate by hand.
Buy prw 1835910 xtreme duty sfirated internal balance 152 teeth steel flexplate for dodge cummins 5. Yesterday the flex plate on my 2000 toyota 4runner w 155k miles was replaced. Mechanical fuel pump, loose harmonic balancer, loose torque converter and the aforementioned cracked flex plate have been some that i have experienced. In the world of lightduty trucks, the 6bt cummins, also known as the 12valve cummins, is legendary.
The large size of the 6bt meant that it couldnt fit in vehicles or equipment where there wasnt a massive amount of space which is where the 4bt cummins comes into play. Can a loose flex plate and torque converter on my 2007 dodge ram diesel cause engine damage over time. Slight misalignment may only cause a single flexplate to break in the life of the vehicle. The flex plate is what connects your engine to the torque converter, and the factory component is only meant to handle the output of the stock engine, not the high torque loads that can easily be produced by a modified. Almost sounds like rod knock, but i just put the engine in and its been doing it since i first started it up. The only time i heard a cracked flex plate was on a 59 chev. This billet flex plate will allow you to convert your dodge transmission over to a ford e4od and a 4r100 note. As for the metal particles in the oil filter, could they be pieces of the rod bearing material. Did a log, no st or lt knocki have a pretty conservative tune. There is a real loud knocking sound coming from what sounds like the torque converter or flywheel area. Its a very noticeable and annoying noise, and i cant pinpoint it.
Forums dodge ram generations forum dodge ram cummins diesel forum general discussions help support ram forum by donating. Worn pilot andor cracked flex plate issues return on the gm 4l80e converters ed lee. Cummins flex plate new and used automotive parts and. I had an engine knock so i replaced the in tank fuel pump didnt fix answered by a verified dodge mechanic. Those factors ensure that when the engine starts and the driver puts it in drive, the cracked flexplate s movement will create a noise. This may occur in worn engines or engine that have been poorly rebuilt. Symptoms of a cracked flexplate general discussion. We offer a variety of cummins flex plate for your automotive needs. I was out towing with the subruban last night, everything went great.
This goerend transmission billet flex plate replaces the stamped factory piece that is prone to failure when under high power levels. Mts recommends this flex plate for high torque horsepower applications we have never seen this flex plate break this is a must for drag trucks and sled pullers. My cummins engine has a loud knock but because i change my own engine oil they do not want to cover under warranty. Symptoms of a cracked flexplate welcome to modern mopar forum. Can a loose flex plate and torque converter on my 2007. Diesel engine transmission torque converter flex plate. Sep 12, 2017 can anyone help me figure out if this noise is just injector rattle or a cracked flexplate. If its a rod knock the knock will go away when you kill the cylinder.
Its louder once engine is warmed up, loud at idle, goes faster when u give it gas. Amounts shown in italicized text are for items listed in currency other than canadian dollars and are approximate conversions to canadian dollars based upon bloombergs conversion rates. Cummins flex plate quality auto parts, new, used and. The reason for the sound involves the flexplates location and its function. For trucks with upgraded power or trucks which pull very heavy loads this is the perfect addon to a high performance transmission packages. Suncoast billet flex plate 48re47re transmission install. I have seen a bunch where motor was pulled for said rod knock and broken flex plate was found. I have crawled under it and grabbed the flywheel and converter and they are tight together. After running for about 2 min, the knock gets louder. Proposed the issue was the flex plate rather then the engine. It is common either to build up the pilot by welding and then.
To really check your flex plate youve gotta take it out. But there is one characteristic i would like to change and this is the abrupt shifting. I did not know this at the time i bought it as it was the first time in a long time owning an automatic, so all of my flexplate and torque converter knowledge have come from the last year of owning the blazer. In this video i talk about a noise coming between the engine and transmission.
As the horsepower and pulling weight of the truck increases, so does the strain on the flex plate that is why this flex plate is perfect for towing, daily driving, and drag racing. The outer perimeter of the plate is attached by six bolts directly to the torque converter which in turn drives the transmission input shaft. Diesel engine knock and noise problems a quick reference solutions guide. Cummins car and truck flywheels, flexplates and parts for. Nov 02, 2009 when i bought my m1009 it had a cracked flywheel and was making the typical rubbing sound when in reverse. Worn pilot andor cracked flex plate issues return on the gm 4l80e converters. The reason for the sound involves the flexplate s location and its function. I wonder how cummins came up with the idea that carbon or sludge can form on a valve of a running engine to such a degree that it can bind to the. Random rattling noise from bellhousing area the truck stop. We offer a plethora of cummins flex plate for your vehicle needs. Nov 16, 2014 hi, i have an 05 dodge 2500 with a cummins common rail. Buy performance transmission flex plates at alligator performance. I checked the flex plate, but when i crawled under it sounds like its. The flex plates connects the engine and transmission.