Are there transmission problems in my 2005 GMC Sierra?

Now, these trucks are getting older, and it’s very likely that your 2005 Sierra may be having transmission problems. Below, you’ll find a ton of troubleshooting your transmission problems. The 2005 Sierra was a carryover from the 2004 model year. First and foremost, it’s necessary to determine what kind of transmission is in the truck.

What kind of transmission does a GMC Sierra have?

M32 – This will be the 4L65E transmission, which is an upgraded version of the 4L60E. M30 – This is the 4L60E automatic transmission. It came in the lighter duty trucks. It’s a four speed overdrive transmission. MT1 – This is the 4L80E automatic transmission. It was used in HD applications.

What causes a GMC Sierra to go into limp mode?

That makes taking off much better on the transmission. In either first or second gear, the torque converter slips more than it normally would on a takeoff. Most of the time, limp mode is caused by loss of signal to/from the TCM. Either the wiring harness has a short or the transmission fuse is blown.

Where is the automatic shifter cable on a Silverado?

If you are having issues shifting in or out of park or L ,your shifter cable may be getting bad.On Silverado-Sierra trucks the automatic shifter cable comes up through the floor and is under the carpet on the drivers side.Because the drivers feet is always on the cable they seem to go bad a lot on Silverado-Sierra trucks.

How can I tell what kind of transmission I have in my GMC Sierra?

First and foremost, it’s necessary to determine what kind of transmission is in the truck. The easiest and quickest way to go about determining this is by RPO codes. The RPO codes are a list of production options that are printed u p and stuck in your trucks inner glove compartment when it’s produced.

What causes a flashing check engine light on a GMC Sierra?

While a majority of the time, the flashing check engine light is going to be caused by a misfire related to your Sierra’s ignition system or fuel system (as stated above), there are other issues that can cause it. Your timing chain could have jumped .

What to do if your GMC Sierra has no overdrive?

AutoZone, or any other parts store will be able to help you with this for free. It really is worth noting that there doesn’t need to be a trouble code thrown for there to be a code in the computer. No 1st and No Overdrive – When the truck has no overdrive and no first gear it’s almost certainly in limp mode.

Why is my GMC transmission not shifting properly?

Most GMC transmission problems such as harsh shifting, delayed shifting, no gear, stuck in gear, no reverse or drive are quite often caused by low transmission fluid level. If your GMC vehicle with automatic transmission is not shifting properly, check the transmission fluid first.

Why is my GMC Sierra 1500 in 3rd gear?

Pulled the harness off the tranny to put it into LIMP mode and it starts out in 3rd gear no problem. So 3rd gear is there.. Shift solenoids A and B have to be good else no 1st or 2nd. No errors codes.

Are there any problems with the GMC 4 speed transmission?

GMC vehicles with a 4-speed automatic 4L60E or 4L65E transmission can have intermittent or constant problems with selecting reverse. This will manifest itself as an inability to engage reverse gear while there are no issues with the engagement of other gears. There will be no other symptoms. The worn or faulty servo engages the reverse gear.

What to do when automatic transmission won’t shift into 3rd gear?

Check the Throttle Cables. Changing the fluid solves plenty of transmission issues but if the problem of automatic transmission won’t shift into 3rd gear persists, the parts you should check are the throttle cables. A defective cable with excessive slack is likely to create issues with smooth shifting of the gears.

Why does my GMC Duramax not shift gears?

Be sure you also check for damaged wires. If the display works OK when shifting gears, the NSBU switch may be OK. Another possibility is a bad ignition switch– many have had problems with this part. Only other thing I can think of that I have done to the truck is I took the aftermarket radio out be put the stock one back in while it was parked.

Is there a GM hard shift transmission defect?

Ultimately, GM owners and lessees face mounting repair costs because of the alleged defect, the complaint says.

What kind of truck is a 2005 GM Sierra?

From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. I drive a 2005 Sierra with the push button 4wd. About a year ago, my “service 4wd” message would come on sporadically.

Why is my Silverado stuck in 4WD Low?

“Service 4wd” started coming back on, and this morning I couldn’t get it out of 4wd low. Any ideas on what could be causing it, and how can i get it out of 4wd low? If its not the switch then it’s the actuator Both are fairly simple to fix. where is the actuator? and what about the encoder motor sensor? I am having a very similar problem.

Why is my Tahoe stuck in 4 low?

I had this problem about a year ago with my 06 Tahoe. When it was stuck in 4 low I would take out the fuse ( on left side of dash) for the four wheel drive and wait for a minute or so and it would reset itself. Had the switch replaced but that was not the problem. Took it to the dealer and it turned out to be an actuator.

What makes a 4WD shift detent plunger inoperative?

Some owners may comment that the 4WD is inoperative. This condition may be caused by an inoperative transfer case motor (actuator). A new transfer case Teflon (R)-coated shift detent plunger (poppet) has been developed in order to correct this condition. This coating on the exterior surface of the poppet should reduce shift effort and wear.

What causes 1-2 shift failure on a 4L60E?

Test the sensor (there should be a smooth, linear electrical response over the range of motion) or substitute a known good unit. A more serious cause of 1-2 shift failure on the 4L60E is a leak in the 2nd gear apply circuit (servo assembly or 1-2 accumulator). You can test for this by using an external pressure gauge.

Is there a problem shifting from 2nd to 3rd gear?

Have check engine, the computer says it needs the shift solenoid, the problem is it will not shift from 2nd to 3rd gear on an automatic transmission. Also found a vacuum line near to transmission disconnected but not sure where it goes.

How many gears does a GM 4L60E have?

The 4L60E (and similar 4L65E) is a series of automatic transmissions from General Motors. Designed for longitudinal engine configurations, the series includes 4 forward gears and 1 reverse gear.

Is the GM 4L60E a sonnax Level 3 transmission?

This video breaks down how to transform a 4L60E, 4L65E or 4L70E into a top-tier performance transmission with Sonnax Level 3 build components.

The 4L60E (and similar 4L65E) is a series of automatic transmissions from General Motors. Designed for longitudinal engine configurations, the series includes 4 forward gears and 1 reverse gear.

Where is the GM 4L60E Turbo Hydramatic transmission made?

The 4L60E is the electronically commanded evolution of the Turbo-Hydramatic 700R4, originally produced in 1982. The 4L60E and 4L65E are built at Toledo Transmission in Toledo, Ohio and have also been built at Romulus Transmission in Romulus, Michigan and Ramos Arizpe, Mexico.

Is there a warranty on a 1993 4L60E?

Returning the core is optional. This transmission comes with a 1 Year 36,000 Mile Warranty with the purchase of a new torque converter. We offer an extended Warranty 2 Year 50,000 Mile Warranty, or a 3 Year 100,000 Mile Warranty for an additional charge. Any and all shipping costs, including freight damage claims.

Is the GMC Sierra 2500HD a 4 wheel drive truck?

A carry-over from 2004, the Sierra 2500HD is offered in Regular, Extended or Crew Cab configuration, available in either two or four-wheel-drive. You can also choose from the standard box or the long bed in either work truck or the SLE1, SLE2 or SLT trim levels.

Where was the 2005 GMC Sierra 2500HD purchased?

1st owner purchased on 09/30/05 and owned in MD until 01/05/12 • 2nd owner purchased on 01/05/12 and owned in WV until 03/27/12 • 3rd owner purchased on 03/27/12 and owned in WV until .

What are the specs of a 2005 GMC Sierra?

Detailed features and specs for the Used 2005 GMC Sierra 2500HD including fuel economy, transmission, warranty, engine type, cylinders, drivetrain and more. Read reviews, browse our car inventory, and more.

Where was the GMC Sierra 2500HD last serviced?

Accident reported. 1st owner purchased on 11/06/04 and owned in TX until 08/20/18 • 2nd owner purchased on 12/11/18 and owned in WA until 05/17/21. 1st owner drove an estimated 10,488 miles/year • 2nd owner drove an estimated 0 miles/year. Last serviced at 144,561 miles in Rochester, WA on 07/03/18 • Vehicle serviced.

Why is the transmission not shifting on my Chevy Silverado?

Take a couple of easy steps to see why your truck is not shifting. No need to panic yet. This article applies to the Chevrolet Silverado GMT800 (1999-2006). Your transmission is just supposed to shift and leave you alone.

Can a Chevy Silverado go from 1st to 4th shift?

Transmission is in Limp Home Mode or has no electrical power. Also, PCM has lots of error codes. No 1st or 4th, shift 2nd to 3rd by itself when put in D or OD and locks converter: Goes into gear but sluggish like brakes are on, can manually shift to 2nd to get moving, then put in OD and truck shift 3rd as well as 4th are OK.

Why does my GMC Sierra 1500 not shift gears?

GMC Sierra 1500 Questions – Speedometer doesn’t work and transmission doesn’t shift gears. – CarGurus Speedometer doesn’t work and transmission doesn’t shift gears. The speedometer stays at 0 all the time. When the transmission is in drive it won’t come out of 1st gear.

What are the problems with a GMC 6 speed transmission?

Incorrect gear shifts, gear slipping or overheating. Newer GMC trucks equipped with a 6-speed 6L80 transmission can suffer from various intermittent or constant transmission issues. Symptoms include harsh or delayed shifting, inability to engage certain gears, and slipping when shifting gears.

Is the GMC Duramax Trans won’t shift?

Enter your ride HERE to be a part of this months Ride of the Month Challenge! Alright guys I’ve got an 04.5 LLY and after sitting for 2 or 3 days went to drive it and it clunks real hard into reverse and drive.

When to reset the computer in a 2005 GMC?

If a warning or service light illuminates on the instrument panel in your ’05 GMC, have the vehicle looked at and serviced by a qualified mechanic. After the vehicle has been repaired, you or your mechanic must reset the computer so that the light (s) on the instrument panel will shut off.

Why is my GMC Sierra not turning over?

First, the ignition switch sends electrical current from the battery to the starter solenoid. The solenoid then forces the gear in the starter housing to engage the engine. When the starter motor turns on and spins the gear, the engine roars to life. If any of these stop working, it means the starter won’t turn over in your GMC Sierra.

What kind of engine does a GMC 3500 need?

Requires properly equipped 3500 Regular Cab DRW Long Box 2WD model with available 6.6L Duramax Turbo Diesel engine and gooseneck hitch. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual.

What to do if your GMC Sierra won’t start?

Attempt to start the engine. If it doesn’t start then release the key back to the on position. Watch the security light. After 10 to 15 minutes the security light should turn off. Turn the ignition off and wait 5 seconds. Repeat steps 1 through 4 two more times for a total of 3 cycles (30 minutes).

How many miles does a GMC Sierra 2500HD drive?

1st owner drove an estimated 35,674 miles/year • 2nd owner drove an estimated 0 miles/year • 3rd owner drove an estimated 0 miles/year • 4th owner drove an estimated 0 miles/year • 5th owner drove an estimated 9,651 miles/year • 6th owner drove an estimated 0 miles/year.

Are there any problems with the GMC automatic transmission?

Overheating is a concern on GMC trucks that are used for towing or hauling heavy loads frequently. GMC vehicles that use a 4-speed automatic 4L60E or 4L65E transmission can develop a problem with gear shifts. This issue will manifest itself as improper gear changes that take too long to happen.

Is the GMC Sierra SLT a heavy duty vehicle?

Available on 2021 base Sierra HD. Standard on SLE, SLT, AT4 and Denali 2021 trims. Read the vehicle’s Owner’s Manual for important feature limitations and information. Excludes other GM vehicles. Requires available accessory trailer camera and installation. Not compatible with all trailers.

When did the GMC Sierra have the most problems?

The model years with the most problems reported were 2004 and 2007, with more than 60 complaints each year, followed by 2002, 2003, 2005, and 2010, with more than 40 each year. Of the 112 problems, five different complaints have been reported 90 or more times.

What kind of suspension system does a 1 ton truck have?

-ton suspension systems were further divided into light and heavy-duty, differentiated by 5-lug and 6 or 8-lug wheel hubs depending on year, respectively. The Ford F- 350, Chevrolet 30, Chevrolet/GMC 3500, and Dodge 3500 are one tons (1-ton). Similar schemes exist for vans and SUVs (e.g. a 1-ton Dodge Van or a 1⁄ 2

How big is the GMC Sierra heavy duty truck?

Sierra 2500 Heavy Duty truck comes in 2WD and 4WD Crew Cab models with a 6′ 9″ standard bed or available 8′ long bed.

What kind of engine does a GMC 3500 have?

What kind of trailer does a GMC Sierra 3500 need?

Requires Sierra 3500 HD Regular Cab Long Bed 2WD DRW with available Duramax 6.6L Turbo-Diesel V8, Max Trailering Package and gooseneck hitch. Before you buy a vehicle or use it for trailering, carefully review the Trailering section of the Owner’s Manual.

Why does my GMC Sierra 1500 not turn over?

My 2003 GMC Sierra 1500 won’t turn over. Checked the battery, it’s fine. “Reduced engine power” message shows on dash. Switched relays to check that with no effect. Radio works, lights work, blower mo…

What’s the average age of a GMC Sierra?

Most affected are model years 1999 to 2009, 2012 to 2015, and 2017. The problem develops on average around 81,128 miles, and estimates for diagnosis range between $88 and $111. 90 owners also reported that the speedometer or other gauges in the instrument panel might start to work erratically.

When did GM stop using the automatic transmission?

Through the 1950s, all makers were working on their own automatic transmission, with four more developed inside GM alone. All of GM’s early automatic transmissions were replaced by variants of the Turbo-Hydramatic by the 1970s. 1940–1967 Hydra-Matic — Oldsmobile (now the trade name for all GM automatic transmissions)

Where can I buy a GM transmission replacement?

Replacing a failed transmission can be very costly, which is why it’s so important to find the best price you can for a replacement online. We’ve listed some of the most common GM transmission part numbers below, making it easy to look up our pricing and place your order.

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