okcblazer74
6/14/2007 11:17:53 PM
2001 Blazer 4WD 4DR 4.3L "W"
Sometimes my transmission kicks for no reason. It only happens one day a month or every other month. It will happen most notably while driving on the highway, but happens on city streets as well. It doesn't matter if the engine is hot or cold. I can be maintaining a constant speed and it suddenly kicks. I'm not sure if it's slipping in and out of gear or what. The car kind of jerks real quick.
The fact that it happens so sporadically really throws me off. It will do it throughout the day, and then not again for anther month or two. I've had the transmission flushed, and the transmission fluid is full. Does anyone have any idea what the problem is?? PLEASE HELP
swartlkk
6/15/2007 5:11:33 AM
Do you see the rpms jump on the tachometer?
Possibly could be a very random misfire that causes the stumble... It may not be a transmission problem at all. It may be happening at other random times that are not as noticeable as well.
When was the last time you did a tune up (plugs, wires, cap & rotor)?
okcblazer74
6/15/2007 12:05:29 PM
I'm pretty sure the tachometer doesn't jump, but I'll make sure and pay closer attention the next time it happens. I just did a tuneup around 12-15K miles ago. Put in new plugs, wires, rotor, etc. Just this last week I had the fuel injectors cleaned. (where they unhook the fuel line and run a cleaner through) It hasn't kicked in a couple of weeks. Do you think it could have been the fuel injectors? I definitely noticed a difference afterwards. The engine runs a lot smoother, but it wasn't terrible before either. I guess I'll find out if it doesn't kick for a few months.
