Ask Your Car Question. Car Experts Answer You ASAP.

(Not a Car Question?)

4l60e trans. 93 GMC 1500. My trans works perfect through 1st and 2nd
Sent to Car Experts September 30 07:09 AM

My trans works perfect through 1st and 2nd with the exception of not always shifting down when I come to a stop. 3rd slips badly. Truck sat up for 10 months. Put new motor in it. Damaged pump seal. Replaced pump seal. 3rd slips like crazy. HELP!

 

Optional Information:
1993 GMC 1500 4.3

Already Tried:
Replaced front seal. Fluid. Trans additive.

Customer (name blocked for privacy)
Status:  Closed   Value: $15
Answer
September 30 7:20 AM (10 minutes and 48 seconds later)
         
REPLIEDCheck Mark
Chances are the trans is bad or the valve body is sticking.The additive should have freed up a sticking valve body though.Did you replace the flat paper gasket under the pump that sits on the front of the tran case?If not it may be torn causing a pressure drop.

Master ASE Certified.L1 Advanced Engine Performance Certified.Pa Emission Repair Technician.Just Answer Car Category Mentor.
Picture
Davo -- Master technician -- 99% Positive Feedback on 1930 Car Accepts
ASE Master Technician/Advanced Automotive Diagnostic Technician
Reply
September 30 7:25 AM (5 minutes later)
         
Reply to Davo's Post: Do you think the truck sitting up for 10 months could have harmed it? It worked perfect before. When I replaced the motor, I drove it down the road and that is when I noticed the front pumo seal leaking. This is frustrating!
Customer (name blocked for privacy)
Answer
September 30 7:33 AM (7 minutes and 33 seconds later)
         
ACCEPTEDCheck Mark
Seals can get hard and leak after sitting for a while.They can also just crack from sitting.The problem may be in the 3-4 clutch area(seal or valve body circuit).I don't know if this would help you but Autozone sells a trans for $650.You may be able to get your rebuilt locally for less but it isn't very likely.I don't get anything for suggesting Autozone just wanted to let you know there are less expensive options out there.

Master ASE Certified.L1 Advanced Engine Performance Certified.Pa Emission Repair Technician.Just Answer Car Category Mentor.
Picture
Davo -- Master technician -- 99% Positive Feedback on 1930 Car Accepts
ASE Master Technician/Advanced Automotive Diagnostic Technician
Think you can answer this question?
Login or Become an Expert

Related Answers

 

DISCLAIMER: You acknowledge that any information you may obtain from individuals you contact through use of the Just Answer service comes from those individuals, not from Just Answer!, and that Just Answer is not in any way responsible for any of the information these third parties may supply. The site and services are provided "as is" with no warranty and no representations are made regarding the qualification of an Expert. Responses and comments on Just Answer! are for general information and are not intended to substitute for informed professional advice (such as medical, legal, investment or accounting) and do not establish a professional-client relationship. Just Answer! is not intended or designed to address EMERGENCY QUESTIONS which should be directed immediately by telephone or in-person to qualified professionals. Please carefully read the Terms of Service.

Just Answer! > Car Repair