I have a 2000 Suburban with a 5.3L 4x4 engine. When the vehicle is cold and has been sitting for a while, I can shift out of Park and it moves fine as soon as I start it. However, if I wait for the car to warm up for a minute, it won’t move when I shift out of Park. It indicates that it goes into gear on the screen but doesn’t actually move. Additionally, I had a situation at a stop sign where the car suddenly wouldn’t accelerate. I panicked a bit, but after restarting, I was able to get it back into Drive and continue on. Any ideas on what could be causing this or how to fix it?
Have you checked if the transmission fluid is full? Also, has it had a filter and fluid change recently? And do you know if it has the 4L60 or 4L80 transmission?
Val said:
Have you checked if the transmission fluid is full? Also, has it had a filter and fluid change recently? And do you know if it has the 4L60 or 4L80 transmission?
I haven’t checked the fluid yet, but I will. I’m not sure which transmission it has. How can I find that out?
@Bowie
You can usually find it on the transmission itself. There might be a tag that says which model it is. Or you can check the owner’s manual.
Sounds like a tricky situation. Has it been making any unusual noises when it shifts? Sometimes that can give clues about what might be wrong.
Jory said:
Sounds like a tricky situation. Has it been making any unusual noises when it shifts? Sometimes that can give clues about what might be wrong.
I didn’t notice any strange noises, but now that you mention it, it did feel a bit rough when shifting.
If it’s not the fluid, it might be a sensor issue or something with the transmission itself. Have you tried resetting the system by disconnecting the battery for a bit?
Dylan said:
If it’s not the fluid, it might be a sensor issue or something with the transmission itself. Have you tried resetting the system by disconnecting the battery for a bit?
That’s a good idea. I’ll give that a shot and see if it helps. Thanks for the tip.
I had a similar issue with my truck. It turned out to be a solenoid problem. Definitely worth checking out if the fluid is fine.
Zephyr said:
I had a similar issue with my truck. It turned out to be a solenoid problem. Definitely worth checking out if the fluid is fine.
What’s a solenoid? I’m not too familiar with the parts.
@Indigo
A solenoid is basically an electromechanical device that helps control the flow of transmission fluid. If it’s malfunctioning, it can cause shifting issues.
Definitely keep an eye on how it behaves when it’s warm. If it keeps happening, you might want to take it to a mechanic who specializes in transmissions. They can give you a better diagnosis.
Ari said:
Definitely keep an eye on how it behaves when it’s warm. If it keeps happening, you might want to take it to a mechanic who specializes in transmissions. They can give you a better diagnosis.
That sounds like a good plan. I just want to make sure it’s safe to drive.