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Found 8 results

  1. Anyone else experiencing a hard shift or hesitation of the engine when you first hit the gas. For example, I start the truck, reverse out of the driveway, put the car in drive and when I hit the gas, the truck goes toward and then i feel the truck completely stop for a second (hesitation) and then it continues forward, I only expierence this when I’m going from reverse to forward. I come to a complete stop and do not shift to drive when moving backwards still. ?
  2. My 09 silverado 5.3 4x4 has shifted hard into 2nd and some into 3rd for several years now. A few months ago I decided to fix it. Codes were for transmission control solenoids, module, oil pressure sensor, misfires...etc. codes like P0700 P0717 P0521 P0523. I replaced all 3 shift solenoids, oil pressure sensor, and immediately the truck shifted like new again and it lasted for a few days or a week. And it started shifting hard again. Really hard. It's so frustrating. And it's throwing all the same codes again. Recently, my truck started misfiring so badly the entire truck was shaking. It was running on two cylinders. All of the ignition colis were failing all at once and the truck was not drivable. Btw, I just changed out those ignition coils, plugs and wires just two years ago, all Ac Delco plugs/wires and duralast ignition coils. So anyways, I replaced all of the coils plugs and wires again this week and the engine no longer misfires, running on all cylinders again. And for a few hours after, there was zero hard shifting now. It was running great, like new again. Shifting smooth as could be. But after making it into the city and hitting traffic lights and stop signs, it didn't take long for the very hard shifts to come back. I've read on this and have been dealing with this in time and parts for so long now. I've read about ground wires could be the cause of all of this. I have replaced everything the computer has suggested, and for a short time after the repairs, the truck would run like new. But the hard shift always comes back. I know there's people out there that have had this same problem. I've read a lot about it but without actually finding the grounds for these specific sensors, I've hit a dead end. The issue just keeps coming back as it's obvious there is a root cause I am not getting to. Please share any knowledge or experiences on this topic. And any knowledge of the location of these grounds may be at. Thank you!
  3. I just purchased a 2019 Silverado RST with the 5.3L, 3.42 Axle, Max Trailering Pkg etc to pull my travel trailer. After we picked truck up we went to dinner when we left the restaurant it would not shift out park. I shut it off and restarted a couple of times then just left it run and after a couple of minutes it would finally shift. I could hear the switch engage and the brake lights would come on but I was unable to pull the lever at all to shift from park. It happened three times this weekend so I took it to the dealer on Monday. They looked it over but didn't find anything wrong and said there were no bulletins on this issue. Anyone else have this experience?
  4. I have a 2015 GMC Sierra Single Cab 4.3L V6. Pulled into the parking lot at work this morning with no issues. Went to back into a parking spot and when I shifted into reverse, EVERYTHING in the cab shut off for about 3 seconds. When it came back on I had an airbag alarm and a stabilitrak alarm. I backed into the spot without issue. As far as I could tell the drive-train was fine. I have the convenience package which is basically the backup camera, Bluetooth, and On-Star. Anyone else come across this issue or anything similar?
  5. what do you guys think? I installed a reman transmission on my 2013 gmc 2500 hd. My tow haul and manual shift does not work now. The orange wire is not the problem i have another truck same model i swapped the tow haul lever over from. Before i swapped i verified my donor trucks tow haul lever worked and installed it on my problem truck just to be sure. I know my manual shift worked prior to the transmission installation because the only way i could drive it was manually shifting 1-3. could this be an internal issue with the transmission or tcm? I do have a tpms light on and traction control light on. Considering the manual shift worked before i wouldnt guess this was the problem, but after the transmission installation i swapped over the tire and rims from my donor truck onto my problem truck.
  6. Hello Everyone, I hope you all are doing well. I have a 98 GMC Suburban 4x4 and my transmission has been acting funny. At first it went into Limp mode and would only run in second and third gears. I had the code pulled and it was the 3-2 solenoid. I replaced it today and topped the transmission off. After doing so i proceeded to test drive the vehicle. The trans slipped a little going into first but other than that did fine. It shifted between each gear smoothly. I headed home 20-30 minutes after the test drive. 20-25 minutes into the trip, on the interstate, The vehicle Downshifted and the rpms shot up. At first it down shifted and the Rpms went up to 3 and stopped then they went to 4 and it down shifted again. i pulled over and restarted it. I proceeded to try and accelerate again and was unable to get the burb past 30 mph without the RPMs jumping up and losing power. Does anyone have any ideas on what this might be? If you need any more information please let me know.
  7. Hello, I have a 98 S-10 ZR2. 60k miles, owned since new. Last few years it has seen very little service, 1000 miles per year roughly. It has always run, and in particular shifted, perfectly. Transmission properly serviced every 20k or so with correct spec Dexron fluids. We use the truck seldomly. We used it in September on a 100 mile trip and it operated and shifted absolutely perfect, as it always has. I used it a bunch at Thanksgiving, and it started to shift really early into what I guess is OD, as it would take the engine down to 500 RPM, lugging, then shift back and forth. "shifting" through manually would make it work fine. I found a thread here: http://www.gmtruckclub.com/forum/showthread.php/75572-4l60e-trans-problems that said that early upshifts can be due to confusion in 4wd status, and even a shorted wire on a 2wd can cause it to think it is in 4lo. I had pulled fuse #8, which made the 4x4 pushbutton selector deactivated when I was checking for parasitic draws (my battery drops voltage a bit faster than Id like, so I was checking it out). When I replaced the fuse, the truck went back to working like it always had. Perfect smooth shifting and no early shifts. The amount of mileage I put on with this "issue" was maybe 50 miles at most. After fixing that issue, Ive put maybe 50 more miles on the truck, all local, and it shifted and worked great, as it ever has. That is, until this morning. I decided to take it on a 40 mile interstate drive. I know my truck spins right at 2000rpm at 70 MPH. I noticed when driving that it was more liek 2300 RPM. I figure that the TC is not locking up. But what makes it very odd is that after doing the interstate mileage, when I was back on normal roads, the truck has started to do a very hard 1-2 shift, which it has never done before. So, any insight into this? All of this has happened in like four days of using the truck since last September, and all within even the same tank of gas - its not like Im driving the truck high mileage. Rodents are a possibility (chew a wire?), but I have never had a CEL, no indicator lights, etc. 4wd engages and operates, all is well. Any thoughts or suggestions? Recommendations on what to check or do? Thanks!
  8. Hello everyone, I recently acquired a 2005 GMC Sierra with the L33 5.3, 4L60E automatic, and push button 4x4. Every morning since I got the truck, there has been a strange issue that I can't seem to figure out. When the truck is cold, I can't seem to get the gear shifter out of park and into any gear. It just seems stuck. I can pull it back to 'unlock' it or whatever you call it, but it just doesn't want to move. No matter how hard I press the brakes, nothing happens. Once it is warm enough, I can hear it click in the column, allowing the shifter to move throughout the gears. After a few minutes of sitting with the heater on, for whatever reason, it will finally operate normally and then its fine for the rest of the day as long as the truck warms up first. Today, it was stuck 3 times because I only drove 1 minute at a time to each of two destinations. The brake lights operate normally when cold so I don't think it is a brake switch issue. Anyone have any ideas on what to check or what the problem could be? Its seriously bugging me.
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