Question about 2005 GMC Sierra

1 Answer

From a stop engine is running fine (not over speeding) but vehicle starts slowly as if on wrong gear

Get up to speed and everything is normal get codesp0740,p2761,p0785

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.


    An expert that got 20 achievements.


    An expert that got 10 achievements.

  • GMC Master
  • 53,755 Answers

Code p0740 refers to torque converter clutch (TCC) solenoid --circuit malfunction Causes---Wiring---TCC solenoid--- ECM/TCM
Code p2716 refers to transmission fluid pressure(TFP) solenoid D-electrical Causes---Wiring---TFP solenoid.
Code p0785 refers to shift/ timing solenoid circuit malfunction Causes---Wiring---shift/timing solenoid---ECM?TCM The common fault here appears to be the TCM ( transmission control module) have it check out..

Posted on Apr 07, 2013


6 Suggested Answers


6ya staff

  • 2 Answers


Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017



  • 91 Answers

SOURCE: Tranmission will not shift into next gear from

Try changing the transmission fluid and transmission fluid filter. It is a fairly easy but kind of messy job. Just buy the new fluid and filter, Grab your metric socket set and go at it. NEVER WORK UNDERNEATH A HOT VEHICLE. You have to pull the transmission pan to do this job. When you break the gasket seal several quarts (liters) of transmission fluid will cascade down on you. Be ready for it. Don't forget that when it stops draining there is still a lot of fluid left in the pan. When you finish cleaning up the fluid clean the gunk out of the pan. Install the new filter and reinstall the pan with a new gasket. Do not over torque the pan or filter bolts. If you strip them out or break them off you will need professional help to repair it. Refill the transmission with fluid. It should take six or seven liters.

Posted on Mar 20, 2010



  • 2007 Answers


Check the vacuum line to your modulator valve on the tranny. It may have popped off when you hacked your nut.

Posted on May 04, 2009


  • 14 Answers

SOURCE: 2000 GMC Jimmy slow acceleration until 3000 rpms

you could check the fuel pump i recently had some problems with my punp after i replaced it where i would get to 3k rpms and it would sorta shut down and wouldnt go past it untill i let off the pedal

Posted on Nov 18, 2008


  • 337 Answers

SOURCE: lose power when i punch it to passing

You could try fuel filter or just your basic tune up.

Posted on Dec 07, 2008


  • 1392 Answers

SOURCE: 2001 yukon xl 6.0 ltr engine-transmission problem

It sounds like it may be an electrical problem. Maybe a problem with the TCM, or a sensor.

Posted on Mar 09, 2009

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

2002 mustang start and run fine in p or n,put it in gear dies unless i rev it up and put it in gear.once i'm moving, it up shift fast and is sluggish until i get speed,does fine until i have to stop

What engine does yours have ? 3.8 or 4.6 Do you have a professional type scanner that will show sensor data parameters ? Is the check engine light on ,or anyother light's ? Wrench symbol .
012 Idle Speed Problems Idle Speed Wrong I know yours only dies when put into gear , idles fine in park an neutral . Just showing what scan data is , if your not familiar with it. With the problem your having it's a necessity to have a scan tool that can view data pid's . You could spend a lot of buck's just replacing part's on recommendations from people on here . Testing an not guessing is the way to find the problem .

May 22, 2018 | 2002 Ford Mustang

1 Answer

How to reset memory

When ever the engine electrical has been disconnected for a while such as while you are doing some major work on the engine and you disconnect the battery or even if you switch engines the computer will need to relearn the driving habits so to speak. Start the vehicle and let idle for five minutes the put the vehicle in gear and slowly pull out. Drive in a gentle way for 5- 10 miles then slowly you increase the speed. do not just romp into it. It can take several days of normal driving before the computer has relearned the driver information. I take a nice drive through the neighbor hood stopping at stop signs slowly speeding up and slowing down before I go out on the high way. I then take about a 50 mile trip where the speed limits vary from 40 to interstate speed. Once the computer has completed the relearning it will idle and drive smoother for you. Hope this helps.

Dec 09, 2015 | 2003 Kia Sorento

1 Answer

Vw passat is not running very well barely goes once in gear

when was vehicle last serviced ? there are many reasons for this to happen , a good engine service might be all thats needed

Nov 04, 2014 | Cars & Trucks

1 Answer

When I start my 2001 hyundai elantra my engine vibrates I turned it off restarted and it did it again I put my hood up everything seem to run right except for one of my belts pop ac belt maybe start...

It sounds like the idle speed is set too low, and it is taking the PCM a few moments to figure the correct setting. If the engine is new, or new to the vehicle, perhaps the engine idle speed setting is incorrectly set too low.

Apr 15, 2014 | Cars & Trucks

1 Answer

I have a 2002 Dodge Ram Quad Cab 4x4. The a/c runs great as long as the truck is moving, but as soon as you come to a stop it starts blowing warm air. Please help.

Generally if the a/c works fine at highway speeds but kicks out or slowly begins to blow warmer and warmer air as the vehicle is driven at slow speeds or is stopped the a/c condensor cooling fan is usually at fault. At highway speeds there is enough air being forced through the radiator, condenser, and oil coolers to keep everything working and cool but when the vehicle is moving slowly or is parked the electric and mechanical cooling fans have to be working to pull enough air through to keep things working. If the cooling fan isn't working or can't pull enough air through the a/c condensor the system will kick out once the internal pressure reaches a certain point. Once the vehicle is moving again the system can get rid of the heat that it has gathered from the passenger cabin, the pressure drops back to normal and the system cools again. I would start by looking for a blown cooling fan fuse in the fuse panel under the hood. Usually they are 25 amps or larger and run only the cooling fan.

Jun 14, 2010 | 2004 Dodge Ram 1500

1 Answer

Car won't go into gear properly

it could be a few things bent shifting fork or first gear is out reverse runs off an idler that is conected to first gear.

Jun 05, 2009 | 1999 Nissan Altima

1 Answer

Nissan 1999 Altima won't go into gear properly

howdy,you need a clutch..thats for sure,101%

Jun 05, 2009 | 1999 Nissan Altima

Not finding what you are looking for?
2005 GMC Sierra Logo

545 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts


Level 3 Expert

85216 Answers

Jonah Oneal

Level 3 Expert

14092 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22485 Answers

Are you a GMC Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides