Q: The flexplate has cracked twice in the past 6 months.

asked by on

The flexplate has cracked twice in the past 6 months. I replaced it with a brand new one. A reconditioned transmission was installed by a transmission specialist 6 months ago. Is it likely do due to a faulty transmission or installation? The same transmission has been reinstalled twice. Would a faulty torque converter cause this problem?

My car has 169000 miles.
My car has an automatic transmission.

Hi there. Aside from a manufacturing defect, the only things that will cause a cracked flex plate are improper torque on the plate bolts at the crank and torque converter and the most common cause of transmission to engine misalignment; sometimes caused by missing alignment dowel pins that mate the transmission to the engine. If the alignment dowel pins are missing, the tremendous amount of torque placed on the components can and will cause a shift in the alignment of the engine and transmission. This can distort, twist, and eventually brake the flex plate; cracked flex plate. Unfortunately, there is no easy way to determine if these dowels are missing once the assemblies have been bolted together and Your Mechanic does not currently offer transmission replacement services. If the plate has to be replaced again, ask to see the alignment dowel pins in the bell housing or engine block; either one works as these assemblies have a matching hole in each for the alignment. Also ask to see the torque specs; this lets you know that the specs were actually looked up and highly likely that they were used during reassembly. I hope that this has been helpful. Feel free to schedule your next service, repair, or diagnostic 7 days a week at www.yourmechanic.com.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. The flexplate has cracked twice in the past 6 months.

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Helicoiled spark plug

A helicoil in a spark plug hole of the aluminum cylinder head was installed in the past due to a spark plug threads in the cylinder head came out during spark plug removal or the spark plug blew out of...

Q: AC not blowing cold air in 2008 Honda Ridgeline

Your car probably needs to have some refrigerant added to the system and maybe some stop leak. If there is a leak in the system the die will show up where the leak is and then the part can be...

Q: ABS light on, 2002 Isuzu Trooper

Hi there. Most professional digital scanners are made with software that allows use for the country of origin of a vehicle as to where it's registered. Puerto Rico vehicle's can be tricky to download the data, but it's not impossible....

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...