95 chevy tahoe no reverse need help!
gearhead06
01-17-2010, 09:51 PM
hi, I have an 95 chevy tahoe 5.7 and just recently when I went to put it into reverse there was nothing there, no sounds no change in the rpm nothing...has something came disconnected or what? any help would be great...
thanks
thanks
Blue Bowtie
01-18-2010, 06:12 AM
Does the trans engage in any of the forward ranges? Does it drive and shift normally in Drive and OD ranges?
If none of the ranges operate, you may want to check the easy things such as linkage, fluid level, whether the engine is running the trans, transfer case, et cetera.
If only reverse is inoperative, there may be a problem with a shift solenoid circuit (including the main trans connector and internal harness), other valve body spool problem, lost reverse check ball (separator plate),
http://www.wwdsltd.com/4L60/4L60EValveBodyUpperBallLg.jpg
failing reverse apply piston,
http://www.wwdsltd.com/files/4L60EReverseApplyPiston.jpg
rear planetary sprag slippage,
http://www.wwdsltd.com/files/4L60EReverseSupport.jpg
or other mechanical failure. The last 4L60 I had which "suddenly" lost reverse had a rear sun gear problem.
http://www.wwdsltd.com/files/4L60ERearPlanetaryFailure.jpg
If none of the ranges operate, you may want to check the easy things such as linkage, fluid level, whether the engine is running the trans, transfer case, et cetera.
If only reverse is inoperative, there may be a problem with a shift solenoid circuit (including the main trans connector and internal harness), other valve body spool problem, lost reverse check ball (separator plate),
http://www.wwdsltd.com/4L60/4L60EValveBodyUpperBallLg.jpg
failing reverse apply piston,
http://www.wwdsltd.com/files/4L60EReverseApplyPiston.jpg
rear planetary sprag slippage,
http://www.wwdsltd.com/files/4L60EReverseSupport.jpg
or other mechanical failure. The last 4L60 I had which "suddenly" lost reverse had a rear sun gear problem.
http://www.wwdsltd.com/files/4L60ERearPlanetaryFailure.jpg
gearhead06
01-18-2010, 06:23 AM
all other gears work fine just reverse is out?
gearhead06
01-18-2010, 04:33 PM
any other ideas?
j cAT
01-18-2010, 07:15 PM
any other ideas?
I would suggest you get this checked at the transmission repair shop. no reverse in most cases is a worn transmission,,,debris is usually high in quanity as the clutches are worn when this occurs ....
what is the maintanace history mileage etc...?
I would suggest you get this checked at the transmission repair shop. no reverse in most cases is a worn transmission,,,debris is usually high in quanity as the clutches are worn when this occurs ....
what is the maintanace history mileage etc...?
maxwedge
01-18-2010, 07:50 PM
No matter what this unit must come out and apart as the sunshell is the usual failure for you condition.
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