How to fix GM 6T70/Ford 6F50 rattling noise with transmission in gear - Transmission Digest

Main Navigation

Advertisement
Social Connect
Resources
Our Brand Family
Transmission Digest - Babcox Media
Helping transmission shops achieve successful and profitable operation.
Transmission TECH/TALK

How to fix GM 6T70/Ford 6F50 rattling noise with transmission in gear

A rattling noise is coming from the transmission whenever the engine is running and the transmission is in gear.

Wayne Colonna
By Wayne Colonna
Tech-Talk-Q4-Figure-13-1400

The complaint

A rattling noise is coming from the transmission whenever the engine is running and the transmission is in gear.

Related Articles

The cause

Too much clearance develops between the pinion bearing and the park gear—refer to figure 1, above—which causes the park gear to rattle against the differential pinion gear.

The correction

Superior Transmission Products offers a park gear anti-rattle shim that is installed in between the pinion bearing and the park gear; refer to figure 14. The shim reduces the clearance to .001 to .002 which eliminates the rattle noise. The part number is STL005, and there are three to a package.

Tech-Talk-Q4-Figure-14-1400
Figure 2.

Figure 2 details:

  1. Differential pinion gear bearings (two required)
  2. Parking gear
  3. Differential pinion gear and shaft assembly
  4. Transfer driven gear
  5. Transfer driven gear snap ring

Read more articles in our Transmission Tech/Talk series here.

You May Also Like

RR-Tech-Nov-FIG-1
manual sources 2023
Featured

GM 6T70/75 slips and delays in first

A 2015 Chevrolet Equinox equipped with the 3.6-liter engine and 6T75 transmission has complaints of a delayed engagement into drive and slips in first gear.

Wayne Colonna
By Wayne Colonna
Tech-Talk-Q4-Figure-11-1400

The complaint

A 2015 Chevrolet Equinox equipped with the 3.6-liter engine and GM 6T75 transmission has complaints of a delayed engagement into drive and slips in first gear.

The cause

A generation one 1-2-3-4 Clutch Apply Piston was installed into a generation two transmission. The generation two 1-2-3-4 Clutch Apply Piston apply fingers are .147 in. taller than the generation one piston. This created too much clutch clearance for the clutch pack to effectively hold.

Read Full Article

More Transmission TECH/TALK Posts
Mercedes-Benz 722.9 no forward movement after overhaul

The complaint A 2007 Mercedes-Benz CLS550 with the 722.9 transmission has an after-overhaul complaint of no forward movement. Related Articles – The importance of the follow-up road test after transmission replacement – Tips and tricks for Chrysler switch valve plug testing – GM 8L90 #7 Check-ball: The overheat that saved the day The cause The

By Wayne Colonna
Figure-9-10combo-1400
Land Rover LR3 ZF6HP26 no start after overhaul

The complaint A 2006 Land Rover LR3 equipped with the ZF6HP26 transmission has a post-overhaul complaint of a no-start condition. Part of the transmission overhaul process included the replacement of the mechatronic unit. Related Articles – Shift Pointers: Nissan’s no throttle response – Jatco/Nissan JF011E critical wear areas and vacuum test locations – ZF 6HP26:

By Wayne Colonna
Tech-Talk-Aug-Figure-8-1400
Infiniti G37 RE7R01A chassis codes set

The complaint A 2013 Infiniti G37 equipped with the RE7R01A transmission and the EXT13C transfer case has a complaint of trouble codes C1204 “4WD Solenoid Malfunction” and C1105 “Right Rear Wheel Speed Sensor Fault” stored. Due to extensive damage, the transfer case was replaced, which did not eliminate the stored codes. The shop then replaced

By Wayne Colonna
Tech-Talk-Aug-Figure-5-1400
Honda Accord BB7A six-speed: P2720 code set after collision

The complaint A 2015 Honda Accord with a 3.5-liter engine and the BB7A six-speed transmission (seen in figure 1, above), was involved in a minor collision to the left front of the vehicle. The vehicle was drivable and was taken to the transmission shop. Vehicle diagnostics revealed a P2720 “Pressure Control Solenoid D Voltage Low”

By Wayne Colonna
Tech-Talk-Aug-Figure-1-1400

Other Posts

ETE Reman: Ever expanding

With a history and reputation dating back to the 1980s, growth is a continuous pattern at Milwaukee’s ETE Reman. CEO Noah Rickun says that ETE is ready to meet the ever-expanding demand for remanufactured transmissions. He points to a combination of available capital to invest in the facilities, equipment, technical capabilities, and the well-trained workforce

By Bobby Mace
What 105 years of history has taught Camargo Transmission

Camargo Transmission, in Mount Sterling, Kentucky, first opened in 1918, when original owner William Cockrell returned home from World War I. Related Articles – Are you down with CVT? – Shop Boss adds new user interface to its shop management software – How seriously should shops take the EV wave? For a company that opened

By Alex Crissey
Camargo-100thAnniv-1400
Company profile: Precision International marks 50 years

Most certainly one of the pioneers of the transmission aftermarket, Precision International founder and CEO Dennis Marshall recalls the formative days of his company, and for that matter, the industry we know today. Precision International is soon to celebrate a legacy of 50 years serving the powertrain aftermarket. The company opened for business as Manufacturing

By Bobby Mace
Podcast: Talking CVTs with Transtar, part 2

Following part one of Andrew Markel’s discussion of the ins and outs of continuously variable transmissions (CVTs) with Dave Hritsko of Transtar, part two of Andrew and Dave’s conversation gets more in depth on the topic, including a discussion on programming transmission modules for CVTs. Tune in to their conversation in the video above. Related

By Andrew Markel
transtar-podcast-1400