Duramax cracked flex plate symptoms

Arp flex plate bolts for 20012010 gm duramax learn more. Llys are 48 volt injectors, theyre fired via a ficm that turns 12 volts into 48 volts to open the injector, the ficm controls the injectors in 2 groups of 4, if even 1 injector in a group goes out, the ficm shuts the whole group down, and you now have a 4 cylinder. Be sure to install alignment pin between new flexplate and crankshaft hub to insure proper alignment. Merchandise thanks for tuning in we hope you guys and gals enjoy the video, be sure to follow us on social. Excessive crankshaft flange runout or end plate can also cause flexplate cracking. More severe misalignment can break a flexplate in 15,000 to 30,000 miles. The flexplate we build was due to the fact that the only common part out there, ats, wouldnt stand up to what we threw at it. It has a few thousand miles since the trans rebuild. I know banks makes a flywheel and ats makes the flexplate. The flex plates stack up like this lbz type, ours works on all allison transmissions banks. Then undo the turbo drain from the top of the mid plate. Featured items newest items bestselling alphabetical. Ats diesel billet flexplate for gm duramax 20012004 6.

Youll be able to customize your profile, receive reputation points as a reward for. Duramax 0104 lb7 billet flex plate socal diesel inc. Can i install a billet flywheel and eliminate the flex plate. On my 3rd one i tryed this u have 6 allen heads holding your flex plate and fly wheel to the back of the crank take out ever other one i have done that and have not broken my flex plate yet.

The whole flex means it needs to flex ats is soild i have broken 2 flex plates also. Power loss at high speeds, the flexplate like most engine parts endures a considerable amount of strain and stress. The same things that cause the flexplate to crack can also cause transmission problems. Common issues and problems we see in the shop with the lb7. It monitors the position and rotational speed of the crankshaft and sends the information to the engine control unit so it can make appropriate adjustments based on operating conditions. Even though the 0610 duramax s are equipped with slightly stronger, forgedsteel rods than what was used in the 0105 engines lb7 and lly, the problem moves upward, into the pistons, on the lbz and lmm engines. Thought they saw a crack in flex plate, i have a warranty that covers the flex plate, i had to authorize the removal of trans for further inspection, but the shop said the spacer looks bad and they found no cracks. If the flex plate is in good condition it can be reused. No, you cannot unplug the injectors 1 at a time to find the miss. Usual failure mode is the crankcase bolts or the torque converter bolts work loose, allowing the parts to start moving in different directions, the clicking sound you heard.

One by the starter, and one on the bottom pass side corner. After checking the flexplate id pull the valve covers to see if theres damage up top that is preventing the engine from turnung over. Slight misalignment may only cause a single flexplate to break in the life of the vehicle. Tighten all crankshaft bolts an additional 60 degrees in sequence. The background is made of mirror polished stainless steel which is 1mm thick and weighs 1 lb. Sounds just like when the flex plate on my 200 tdi auto was buggered.

Destroked duramax to ford 4r100 transmission flex plate. Someone told me yes but, it is a pain to bolt up the t. Performance transmission flex plates alligator performance. Thats not to bag on the ats part as it is better then the stock piece, but us and a few customers of ours were shreading them. Duramax 1116 lml billet flex plate socal diesel inc. At about 5 miles from home my flex plate was cracked. There are tough flexplatesand there are chuck norriscaliber flexplates. Mine was inspected through the little inpection hole at the bottom looking for radial cracks, but on full engine removal found it has split into two concentric rings, drive only. Click the button below to add the socal duramax billet flex plate to your wish list. Summit racing has a huge instock selection of flexplates. When additional horsepower and torque are added to your duramax, you run the risk of cracking the stock flexplate.

A dropped bolt will definitely make noise but the noise typically doesnt last long since something breaks. The flex plate replaces the flywheel in automatic transmission cars. This is a must with the high torque in conjunction with a better designed torque converter that can transfer the torque with no. The water pump is comprised of multiple gaskets and seals that keep coolant contained and ensure that consistent flow of coolant is delivered from the radiator to the engine. If you only tow 5% of the time and this is a daily driver, then a 34 ton might be ok but it is no 12 ton as far as comfort and mileage. Each destroked flex plate is specifically designed, engineered and tested for each application. Common issues and problems we see in the shop with the lb7 6. I do have a bad driver side engine mount im most likely going to replace today. It bolts to the end of the crankshaft and the transmissions torque converter bolts to it. The unwary wont notice especially since it is so hard to see up in there. I listens to pat and instead of putting 8 bolts back in the flex plate flywheel i put 4 in it star shape. Search our online flex plate catalog and find the lowest priced discount auto parts on the web. Jan, 2016 here are 5 common symptoms of a bad water pump.

Shop flexplates from ati, tci, hughes performance, hays, quicktime, and others. This saturday i slid the torque converter off the flex plate and got the engine hot. Chevroletgmc diesel diagnostics oregon fuel injection. The flex plate connects to the crankshaft and bolts to the torque converter. Many versions of this engine have been produced in the following 15 years, but they were all built upon the original. This may occur in worn engines or engine that have been poorly rebuilt. Those factors ensure that when the engine starts and the driver puts it in drive, the cracked flexplate s movement will create a noise. Designed to handle up to 1500 ftlbs of torque, the new duramax black oxide coated flexplate is corrosion resistent to prevent hydrogen embrittlement, billet machined and precision balanced for ultimate strength. Instead, what you could do is to boost up the lubrication on the differential instead. A bad oxygen sensor can negatively impact an engines performance in a variety of ways. Furthermore, if not properly diagnosed it will occur again and often damage to the transmission may follow.

Drove it 20 miles, the new flex plate broke, and the bellhousing, cracked all the way around, and it looks like it originated from that same passenger top side, while i was driving it, no severe sounds were made, just two strange downshifts not violent, however. No noise what so everi took the trans out and the flex plate looked like brand new with no cracks. The truck still runs great and doesnt effect performance at all. We offer high quality new, oem, aftermarket and remanufactured chevrolet silverado 2500 hd flex plate parts. Nov 16, 2006 it has a few thousand miles since the trans rebuild.

Symptoms of a cracked flexplate general discussion. Register now to gain access to all of our features. Usually, a problematic crankshaft position sensor will produce any of the following 7 symptoms that alert the driver of a potential problem that should be serviced. Removed the trans last night to install my new transmission and found the flywheel housing if thats what its called is broken in 2 spots, both around bolt holes.

Symptoms of a bad or failing water pump yourmechanic. Chevrolet silverado 2500 hd flex plate flywheel plate atp. In order to do proper diagnostics you will need a scan tool, diagnostic service information and some special tools such as a vacuum test gauge j44638 otc 6754 available. Look for cracks between the bolt and weight reduction holes on the flex plate. Cracked fly wheel usually gets louder as it gets hotter, or under heavier load. I would take that cover off and turn the flywheel by hand to see if you can see a loose bolt. Ever since the manufacture started back in 2001, the 6. Rear differential noise, when ignored, can lead to major problems and permanent damage on the ring and pinion. Noise in my chevrolet silverado sounds like flywheel. Im not ruling out possibly a cracked flex plate but im leaning away from it cause the noise is from up front.

Rattles at idle but the force of driving jams the bits together so no rattle when driving. Flex plate again chevy and gmc duramax diesel forum. This leaves nearly a 14 inch gap between the mounting holes in the converter and the face of the flex plate. Socal duramax billet flex plate danville performance. A cracked flex plate is almost always a sign of other problems. Symptoms of a bad or failing crankshaft position sensor. And we also have heavyduty and sfiapproved flexplates for highhorsepower, highrpm race applications.

The crankshaft position sensor is an engine management component found on virtually all modern vehicles with internal combustion engines. My unaltered 2015 chevy silverado 3500hd duramax crew ltz. 38s, 12 lift, 42s 1991 camaro rs v8, lots of mods 2000 zx9r, 150 rwhp, 9 sec 14 1984 k10, 6 lift going on during leave, 34 swap soon. The sun coast a1bfp billet flex plate for your 20012005 gm 6. Chevrolet silverado 2500 hd flex plate flywheel plate. Gm performance view topic broke my fourth flexplate. Buy performance transmission flex plates at alligator performance. Unfollow duramax flywheel to stop getting updates on your ebay feed. A mirror andor opaque color laser cut acrylic design is permanently attached to the stainless steel surface to create a threedimensional finish. I just thought id post a short video of what a cracked flexplate on a 6. You will find that the lip around the outside of the flex plate bottoms against the outside rim of the torque converter. The flex plate also has a ring gear that meshes with the starter. Help experts, broke bellhousing and flex plate twice. No problems as of yet and the tranny shifts harder not then before.

So far i have ran 2 quarts through with 2 tanks of fuel and my truck is quieter than ever. It is a very common thing and will almost sound like a rod knock. I would take that cover off and turn the flywheel by hand to see if you can see a. The driver needs to get it serviced sooner than later, thus avoiding further disruptions. I think the shifts are setup too hard on the computer causing the flex plates to break actually. Eventually, these gaskets and seals will wear out, dry up, crack or break.

I was told by several people it could be a cracked flex plate. Those factors ensure that when the engine starts and the driver puts it in drive, the cracked flexplates movement will create a noise. The check engine light on the car control module may go on, indicating that something is wrong with the engine. Mine had the same symptoms that yours did about 2 weeks ago and a bunch of guys here on the forum recommended that i run a quart of 2 stroke oil with a tank of diesel. Symptoms of camshaft position sensor failure wheelzine. We specialize in a widevariety of highquality car parts and accessories for your car, truck or suv. Repair of the differential is usually recommended to be left in the hands of professionals because of the complexity of the system. Last time i hunted the exhaust, lifters, bearings, only to find out i had to do the damn flex plate and it only had 2030k on it maximum. Destrokes duramax to ford 4r100 flexplates is sfi 29. Once registered and logged in, you will be able to contribute to this site by submitting your own content or replying to existing content. Symptoms of a cracked flexplate welcome to modern mopar forum. Because of the important role an oxygen sensor plays in the maintenance of proper air and fuel levels in a running engine, any abnormal or faulty oxygen sensor function can create several abnormal engine symptoms. Weve got tough yet affordable flexplates for stock and mildly modified street vehicles.

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