Pontiac G5 Transmission Problems & Cost | 4T45E | 6T70

The Pontiac G5 was equipped with the 4T45E transmission and 6T70 transmission. But they aren’t without their problems though, so let’s look at some of the most common Pontiac G5 transmission problems, look at cost estimates and figure out what you can do about them.

Need a replacement transmission? Get an estimate for replacement transmissions and local installation. Look up your transmission model by vehicle make and model.

What Transmission Do I Have?

Pontiac G5 Transmission Models

Pontiac G5: 4T45E Transmission
Pontiac G5: 6T70 Transmission

Pontiac G5 Transmission Replacement Cost Estimate

Pricing varies by model. To be 100% sure on pricing, have your VIN# handy and use our Get An Estimate feature to look up your transmission by VIN#.

Replacement Pontiac G5 Transmission Prices:

TransmissionStreet Smart TransmissionAutozoneAdvance Auto PartsDealer Retail
4T45E / 4T40E1811144014992644

What are the DTC codes related to Pontiac G5 transmission problems?

Trouble CodeDescription
P0711Transmission Fluid Temperature Sensor Circuit Range/Performance
P0712Transmission Fluid Temperature Sensor Circuit Low Input
P0713Transmission Fluid Temperature Sensor Circuit High Input
P0714Transmission Fluid Temperature Sensor Circuit Intermittent P0715
P0715Input/Turbine Speed Sensor Circuit
P0716Input/Turbine Speed Sensor Circuit Range/Performance 
P0717Input/Turbine Speed Sensor Circuit No Signal
P0718Input/Turbine Speed Sensor Circuit Intermittent
P0720Output Speed Sensor Circuit
P0721Output Speed Sensor Circuit Range/Performance
P0722Output Speed Sensor Circuit No Signal
P0723Output Speed Sensor Circuit Intermittent
P0729Gear 6 Incorrect Ratio
P0730Incorrect Gear Ratio
P0731Gear 1 Incorrect Ratio
P0732Gear 2 Incorrect Ratio
P0734Gear 4 Incorrect Ratio
P0735Gear 5 Incorrect Ratio
P0740Torque Converter Clutch Circuit Malfunction
P0741Torque Converter Clutch Circuit
P0742Torque Converter Clutch Circuit Stuck On
P0744Torque Converter Clutch Circuit Intermittent
P0748Pressure Control Solenoid 'A' Electrical
P0750Shift Solenoid 'A'
P0751Shift Solenoid 'A' Performance or Stuck Off
P0753Shift Solenoid 'A' Electrical
P0755Shift Solenoid 'B'
P0756Shift Solenoid 'B' Performance or Stuck Off
P0758Shift Solenoid 'B' Electrical
P0767Shift Solenoid 'D' Stuck On
P0776Pressure Control Solenoid 'B' Performance or Stuck Off
P0796Pressure Control Solenoid 'C' Performance or Stuck off
P0816Transmission Fluid Pressure Manual Valve Position Switch Park/Neutral with Drive Ratio
P0816Downshift Switch Circuit
P0826Up and Down Shift Switch Circuit
P0842Transmission Fluid Pressure Sensor/Switch “A” Circuit Low
P0850Park/Neutral Switch Input Circuit
P0851Park/Neutral Switch Input Circuit Low
P0852Park/Neutral Switch Input Circuit High
P0897Transmission Fluid Deteriorated
P0961Pressure Control Solenoid “A” Control Circuit Range/Performance
P0962Pressure Control Solenoid “A” Control Circuit Low
P0963Pressure Control Solenoid “A” Control Circuit High
P0965Pressure Control Solenoid “B” Control Circuit Range/Performance
P0966Pressure Control Solenoid “B” Control Circuit Low
P0967Pressure Control Solenoid “B” Control Circuit High
P0969Pressure Control Solenoid “C” Control Circuit Range/Performance
P0970Pressure Control Solenoid “C” Control Circuit Low
P0971Pressure Control Solenoid “C” Control Circuit High
P0973Shift Solenoid “A” Control Circuit Low
P0974Shift Solenoid “A” Control Circuit High
P0976Shift Solenoid “B” Control Circuit Low
P0977Shift Solenoid “B” Control Circuit High
P0979Shift Solenoid “C” Control Circuit Low
P0980Shift Solenoid “C” Control Circuit High
P0982Shift Solenoid “D” Control Circuit Low
P0983Shift Solenoid “D” Control Circuit High
P0984Shift Solenoid “E” Control Circuit Range/Performance
P1860TCC PWM Solenoid Circuit Electrical
P1887Torque Converter Clutch Release Switch
P2714Pressure Control Solenoid ‘D’ Performance or Stuck Off
P2723Pressure Control Solenoid ‘E’ Stuck Off

Pontiac G5 Transmission Recalls

Recall 09V073000 / 09041 Transmission shift cable clip failure
2009 Buick Enclave, 2009 Chevrolet Cobalt, 2009 Chevrolet HHR, 2009 Chevrolet Malibu, 2009 Chevrolet Traverse, 2009 GMC Acadia, 2009 Pontiac G5, 2009 Pontiac G6, 2009 Saturn Aura, 2009 Saturn Outlook

Summary –
On 276,729 2009 GM vehicles, the transmission shift cable adjustment clip may come loose, causing the gear indicator to display the wrong gear.

Consequence –
If this problem occurs, the driver could remove the ignition key and exit the vehicle thinking the transmission is in Park, even though it isn’t. This can lead to a rollaway, which can cause injury and/or property damage. A lesser consequence would be the inability to start the vehicle because the transmission is not in Park.

Remedy –
This recall began on March 24, 2009, and Chevrolet dealers were instructed to inspect and if necessary, replace the shift adjustment cable clip. Concerned owners can contact the National Highway Traffic Safety Administration at 1-888-327-4236

Pontiac G5 Technical Service Bulletins (TSB)

TSB 99-07-30-031 – No third or fourth gear – 4T40E Transmission & 4T45E Transmission
1999 – 2000 Chevrolet Cavalier – 1999 – 2000 Chevrolet Malibu – 1999 Oldsmobile Cutlass – 1999 – 2000 Oldsmobile Alero – 1999 – 2000 Pontiac Grand Am – 1999 – 2000 Pontiac Sunfire
Problem – Drivers may experience the complete loss of third and fourth gears
Solution – Replace direct clutch piston assembly

TSB 02-07-30-022B – Usually harsh shifts, along with multiple transmission diagnostic trouble codes – 4T40E Transmission | 4T45E Transmission | 4T65E Transmission
2000 – 2004 Buick Century – 2000 – 2004 Buick LeSabre – 2000 – 2004 Buick Park Avenue – 2000 – 2004 Buick Regal – 2003 – 2004 Buick Rendezvous – 2000 – 2001 Chevrolet Lumina – 2000 – 2004 Chevrolet Cavalier – 2000 – 2004 Chevrolet Impala – 2000 – 2004 Chevrolet Malibu – 2000 – 2004 Chevrolet Monte Carlo – 2000 – 2004 Chevrolet Venture – 2000 – 2002 Oldsmobile Intrigue – 2000 – 2003 Oldsmobile Aurora – 2000 – 2004 Oldsmobile Alero – 2000 – 2004 Oldsmobile Silhouette – 2000 – 2004 Pontiac Bonneville – 2000 – 2004 Pontiac Grand Am – 2000 – 2004 Pontiac Grand Prix – 2000 – 2004 Pontiac Montana – 2000 – 2004 Pontiac Sunfire – 2001 – 2004 Pontiac Aztec
Problem – Drivers can experience unusually harsh shifts, along with the following DTC’s: P0716, P0717, P0730, P0753, P0758, P1860, P1887
Solution – Inspect, repair and/or replace the transaxle 20-way connector to the transmission wiring harness

TSB 00-06-04-037A – Harsh shifting with DTC’s P0716 and/or P0717 – 4T40E Transmission | 4T45E Transmission | 4T65E Transmission
2000 – 2002 Buick Century – 2000 – 2002 Buick LeSabre – 2000 – 2002 Buick Park Avenue – 2000 – 2002 Buick Regal – 2002 Buick Rendezvous – 2000 – 2001 Chevrolet Lumina – 2000 – 2002 Chevrolet Cavalier – 2000 – 2002 Chevrolet Impala – 2000 – 2002 Chevrolet Malibu – 2000 – 2002 Chevrolet Monte Carlo – 2000 – 2002 Chevrolet Venture – 2000 – 2002 Oldsmobile Intrigue – 2000 – 2002 Oldsmobile Aurora – 2000 – 2002 Oldsmobile Alero – 2000 – 2002 Oldsmobile Silhouette – 2000 – 2002 Pontiac Bonneville – 2000 – 2002 Pontiac Grand Am – 2000 – 2002 Pontiac Grand Prix – 2000 – 2002 Pontiac Montana – 2000 – 2002 Pontiac Sunfire – 2001 – 2002 Pontiac Aztec
Problem – Some drivers may experience unusually harsh gear changes, accompanied by a P0716 and/or P0717 DTC
Solution – This problem can be caused by an intermittent connection of the input speed sensor circuit at the transaxle 20-way connector

PIP4627A – 35R clutch wave plate broken – 6T70 Transmission | 6T75 Transmission
2007 – 2009 Saturn Aura – 2007 – 2009 Saturn Outlook – 2008 – 2009 Saturn Vue – 2007 – 2009 GMC Acadia – 2007 – 2009 Pontiac G5 – 2008 – 2009 Pontiac Torrent – 2008 – 2009 Buick Enclave – 2008 – 2009 Chevrolet Equinox – 2008 – 2009 Chevrolet Malibu – 2009 Chevrolet Traverse
Problem – On vehicles equipped with the 3.6L V6 and 6-speed automatic transmission, drivers may experience no reverse, slipping, and/or harsh shifting between 3rd-5th gears. They may also have diagnostic trouble codes P0776 and P0842. This condition is typically caused by a broken 35R clutch wave plate.
Solution – During the repair/rebuild process, the wave plate must be installed properly (with the rounded edge of the internal splines facing the 35R piston), in order to prevent premature failure.

Common Pontiac G5 Transmission Problems

Input/Output Speed Sensor Issues – 6T70E Transmission
Problem – When repairing a failed input speed sensor or output speed sensor, steering system damage could occur.
Solution – To avoid damage to the clock springs, the splined steering knuckle must be prevented from falling out of the steering rack when dropping the subframe to access the valve body.

Lack of Response
Leaking Fluid
Low Fluid
Burning Smell
Grinding or Shaking
Whining, Clunking or Humming
Refuses to Go Into Gear
Torque Converter Issues
Valve Body Issues
Transmission Noisy in Neutral
Gears Slipping
No 3rd or 4th Gear
No 1st or 2nd Gear
No Reverse
Dragging Clutch
Trouble Codes / Check Engine Light

Can I drive with a transmission problem?

If your Pontiac G5 can still make it up and down the road, you might say “It’s fine, I’ll just drive it until I can get it fixed”. But that is not always a good idea, depending on the symptoms. You see, there are a lot of (very expensive) moving parts inside of a transmission, and if something isn’t right, continuing to drive with a transmission problem could damage something else.

How often does a Pontiac G5 transmission need to be replaced?

The overall lifespan of a Pontiac G5 transmission largely depends on how well it was maintained. Factory design flaws also factor into this equation, along with how/how hard you drive. But on average, we’ve seen the Pontiac G5 transmission last for between 130,000-180,000 miles. A high quality replacement transmission however, can last considerably longer if all of the factory design flaws have been addressed and the vehicle has been maintained.

How are Pontiac G5 transmission issues diagnosed?

It is fairly easy to guesstimate what the root cause of your Pontiac G5 transmission problems might be, but you won’t truly know unless you have the right tools and experience. A good mechanic or transmission repair center will be able to connect your truck to a computer and find out which diagnostic trouble codes (DTC’s) have been stored. Once they know what to look for, they can perform a visual inspection to verify the problem.

How is a Pontiac G5 transmission replaced?

In order to replace your Pontiac G5 transmission, the truck has to be lifted from the ground in order to gain access to all of the parts that will need to be unbolted. Then the transmission can be lowered to the ground (typically with a transmission jack), so the new transmission can be installed. Once it is in place, for the 6L80, the vehicle PCM will have to be reprogrammed / reflashed to accept the new transmission using the latest GM subscription.

Recommendations for Pontiac G5 transmission issues?

To save time and get back on the road faster, have your 17-digit truck VIN# handy and you can get an online quote for a reman Pontiac G5 transmission here, then find a local shop using our Find a Shop guide to install it for you.

How to Solve Pontiac G5 Transmission Problems

Solution A: Buy a Used Pontiac G5 Transmission

The quickest way to fix your transmission problems is to simply buy a used transmission or used transmission. These can be found at most junk yards, and they often come with a 30-90 day warranty. However, there’s no way to determine the actual condition of the internal components, so you could be spending a bunch of money to have the exact same problems. Plus, that warranty only covers the transmission if it’s defective, not the labor costs that you’ll have to pay.

Solution B: Buy a Rebuilt Pontiac G5 Transmission

Another option would be a rebuilt transmission or rebuilt transmission. A local repair shop will remove your transmission, then install a bunch of new parts during the rebuild. The problem here is, the skills and experience of each transmission rebuilder will vary widely from shop to shop, so you could have problems from something that wasn’t adjusted properly. And the 1-2 year warranty might only cover you at certain transmission repair shops, in a specific geographical area.

Solution C: Buy a Remanufactured Pontiac G5 Transmission

Many owners depend on their vehicle to commute and get things done. Their gasoline engines are designed to go 100’s of thousands of miles, so it makes sense to invest in a remanufactured transmission.

Need a replacement transmission? Get an estimate for replacement transmissions and local installation. Look up your transmission model by vehicle make and model.

What Transmission Do I Have?

What Problem Does Your Pontiac G5 Have?

Let us know the year, mileage and problem you’re having as well as any trouble (OBD) codes you’ve found. If you’ve been given a quote or paid for a repair, we’d like to hear about that too!

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allen
1 month ago

a friend has an 07 pontiac g5 and she stated that it shifts fine from 1-2 and than when it shifts from 3-4 it shifts at kind of high rpm would it be considered one of the shift solendoids that could cause this issue

Crystal
6 months ago

The altanator,battery,and starter are brand new but my car still dont start

Arne Suutari
6 months ago

2008 Pontiac G5. Sudden shudder at between 1800 and 2200 RPMs Almost like it doesn’t know whether to upshift or downshift. This a rebuilt transmission from about a year ago. Does it every once in a while. Can’t predict it.

Jason E Vaughn
9 months ago

2009 Pontiac g5 2.2 l automatic. Transmission slips on initial takeoff when cold but once warms up it performs flawlessly. 167,000 MI and just replace fluid and filter last week but problem still there

Gloria
1 year ago

I was sitting at the red light when the light changed my car would not pull off. Fluids are good and my transmission was never slipping. People say the bands gone. Help me please

Anonymous
9 months ago
Reply to  Gloria

8

Valerie Greenbush
2 years ago

I have a Pontiac G5 2007 and it will not go in to reverse. I barely have drive.

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