I have a 2002 Honda Civic EX 1.7L VTEC with 33,000 miles. Serval months ago I replace the automatic transmission and when I was test driving, it jerks. Now this transmission was from the junkyard. Any tip on how to stop the jerking?
33,000 miles on the vehicle or on the junkyard transmission?
Installing a junkyard transmission is always going to be a gamble, especially on a decades-old car. The odds appear to be worse in this case due to Honda automatic transmissions of that time period being trouble-prone:
http://www.hondaproblems.com/transmission-failure/
https://www.carcomplaints.com/Honda/Civic/2002/transmission/transmission_failure.shtml
About all you can do is check that fluid and filter are clean, fluid level is good, and the correct Honda transmission fluid is used. To properly diagnose the problem would require a high-end bidirectional scan tool that would cost more than the car is worth, as would any internal transmission repairs.
Well to begin with, I have no idea what your transmission would need replacing on a Honda that's that low mileage. But I would assume the junkyard transmission you got probably has very high mileage and it's just worn out. Other than it being not full of fluid it's probably jerking cuz it's worn out inside
Thanks for the tip scotty and Happy 69th birthday to you.