'93 K1500 Suburban 5.7 (460LE trans, I believe, too hot to check it
right now)

So I'm driving into town this morning, I gun it to get up a hill. It
downshifts into first, we get up the hill, harsh shift into 2nd...
Later on today, I get in it to go home, it will not shift into 1st gear,
even with the column shifter in 1st. On the hiway, I see that it won't
stay in 4th - it only shifts into 4th if I have no pressure on the gas
pedal, but as soon as I give it gas, it downshifts.

I can't read the stupid dipstick, it's either a pint low or a pint high,
can't tell.

I will probably take it to a tranny shop anyway, but I like to be an
informed consumer. Or, if it's an easy fix (rofl)...

Much thanks.

Yes, that's a 4L60E sorry for the typo

And some history: prior to this, it had a hard 1-2 shift and a mushy 3-4
shift. Not too severe, so I wasn't too concerned.

Is the oil connected to the tranny in any way? The oil sensor has been
reading very high (pegged) at RPMs above 2500, then drops on a
downshift. I figured my oil sensor went bad, is it possible that it is
good and it has something to do with my prob?

Thanks again.

QBS wrote:

"QBS" <brent (AT) qbs-online (DOT) com> wrote

Tranny probably just worn out. I got a quote for a 700R4 from
Chevy parts dept. for a 1991 1500 with a 4.3, with converter was only
$1400.

Whitelightning

On Mon, 30 Apr 2007 21:15:33 GMT, "Whitelightning"
<white.lightning2 (AT) verizon (DOT) net> wrote:


You can get a good rebuilt one form Bull Dog transmissions for less
and you can have them in different "flavors" too and that has upgraded
parts replacing some of its weaker links.
-----------------
TheSnoMan.com

QBS wrote:
Losing 1st and 4th at the same time is commonly caused by a burned out
shift-A solenoid. Very easy repair, the solenoid is less than $20. If
you can change a trans fluid filter you can replace this solenoid.
Jerry