Hi, I have a 97 Blazer that has developed a whine. It doesn't whine in park or neutral, whines in drive while sitting and whines upon acceleration. Have checked the ranny fluid, all is well there. Any suggestions as to what this could be?

 

If you're sure that the whine is from the trans, how many miles are on it? If you have recently bought the truck, my first idea would be to do a drain and fill and filter change to see if that helps. The whine might be from the pump or valve bodies.

 

Wondering if this whine may be related to trouble with push button 4whl drive going on and off by itself?? This is also a recent issue.

 

I have a 95 Chevy Blazer LS and of late it has been doing some really wierd stuff. About a month ago it started making a wierd noise that made it sound more like a motorcycle than a car. The noise gets louder when I slow down. I was on my way to Aamco to check it out and then it stopped. They checked my transfer case and said it was fine.

Two days ago, when starting my car, my navigation system (I have a Pioneer AVIC D3) did not load. I turned the engine on and off twice but the same problem. The colors on the side of the system kept changing which means it was getting power, but it did not load. I drove all the way home, pulled into the garage, turned off the engine and on a whim thought lets turn the car on again. This time, the AVIC D3 loaded!

Yesterday I was on the freeway and all of a sudden I thought the engine was a little loud...I take great care of this car and the engine is very quiet and she usually purrs like a kitten. Being that I was on the highway and travelling at a pretty steady rate, I had no way to gage that the same problem had returned until I slowed down and I heard the "motorcycle-like" noise.

This morning I was trying to figure out what had gone wrong again and I started playing around with the 4x4 buttons on the dash. If I hit 4-hi the noise stops but every now and again, I feel a thumping from under the car. However I can feel that the front wheel have NOT ENGAGED. When I switch back to 2-hi, the noise starts again. If I am sitting in N or completely parked and try to engage the 4-lo, it will not even engage at all (the light doesn't flash - nothing) in fact it throws me back to 2-hi!

What is going on with my truck???!!!! Does anyone know???!!! And does anyone know what this is going to cost me???!!!

 

Lad, keep things to the initial thread you started, see below:

95 LS WIERD NOISE COMING FROM MY CAR - HELP!!!