supertrick_05 Posted December 31, 2009 Report Share Posted December 31, 2009 Ok, so I'm bringing my '92 GP to my mechanic next week to get a full look-over and make sure everything is okay. I was telling a friend of mine at work everything I'm going to have him do while he's looking at it...told her I was going to do an oil change, replace plugs/wires, and flush the transmission and put all-new fluid in, since I don't know when the last owner changed it and the car has 171,xxx on the clock. She gets all wide-eyed and says "DON'T FLUSH THE TRANNY! It's so bad for the transmission if you don't know the past maintenance of the vehicle! I would advise anyone not to EVER do that!" And I remembered that I was told on the forum to do EXACTLY that...flush the trans and put new GM Synchromesh fluid in. I told her that, and she said "anyone who knows anything about cars should know that you NEVER do that!" So basically I'm here to see if she's full of shit, or if there is some actual truth to it...since I've never heard anything like that until now. Quote Link to comment Share on other sites More sharing options...
GOT2B GM Posted December 31, 2009 Report Share Posted December 31, 2009 its a 284 right? Remove plug, drain. Replace plug. Fill with 2 quarts of synchromesh. Do it yourself, takes 20 mins Quote Link to comment Share on other sites More sharing options...
supertrick_05 Posted December 31, 2009 Author Report Share Posted December 31, 2009 Oh I know it's easy, I just thought i'd have him do it since he'd have the car in the air while he checks stuff out. I can definitely do it though. I guess it'd save me a few bucks. And my dad said the car is leaking oil on his garage floor, so i guess I gotta see where that's leaking from. I wonder if it's that infamous o-ring that leaks on these 3.4's... Quote Link to comment Share on other sites More sharing options...
94 olds vert Posted December 31, 2009 Report Share Posted December 31, 2009 I can almost bet its the o-ring. Mine was replaced 2 years ago and it still leaks. http://www.w-body.com/forum/index.php?topic=16325.0 Quote Link to comment Share on other sites More sharing options...
Night Fury Posted December 31, 2009 Report Share Posted December 31, 2009 Tell her to shut her gaping ass-mouth. Quote Link to comment Share on other sites More sharing options...
1990lumina Posted January 1, 2010 Report Share Posted January 1, 2010 That MYTH is only for automatics...but AGAIN, only MYTH! Change the oil. Quote Link to comment Share on other sites More sharing options...
Crazy K Posted January 1, 2010 Report Share Posted January 1, 2010 Tell her to shut her gaping ass-mouth. x2 There is a popular myth regarding flushing, which is that flushing can damage a transmission as it removes gunk, grime and particulate matter that is critical to making a worn out transmission run. If a transmission fails after a flushing, it was already damaged in the first place. Certainly this myth has a solid footing; many people fail to do maintenance until problems are already severe. A person takes their car in for transmission service because it is acting up, and it dies after being flushed... THEY ALREADY HAD TRANSMISSION DAMAGE AND NEED TO TO SHOT TWICE IN THE HEAD FOR BEING A DIP$#!^!!!!!!!!! Besides.... You are not FLUSHING. you are CHANGING the fluid. Tell her to blow it out her ass. Quote Link to comment Share on other sites More sharing options...
xtremerevolution Posted January 1, 2010 Report Share Posted January 1, 2010 That MYTH is only for automatics...but AGAIN, only MYTH! Change the oil. A flush is more than just a drain and refill. A flush invovles you running a solvent through it to "flush out" the built up gunk. Might be worth mentioning that I'm having transmission problems 5000 miles after a drain and refill of the transmission, but that could be related to other factors. The transmission does have 213k miles despite having been rebuilt at 148k. Quote Link to comment Share on other sites More sharing options...
1990lumina Posted January 1, 2010 Report Share Posted January 1, 2010 That MYTH is only for automatics...but AGAIN, only MYTH! Change the oil. A flush is more than just a drain and refill. A flush invovles you running a solvent through it to "flush out" the built up gunk. Might be worth mentioning that I'm having transmission problems 5000 miles after a drain and refill of the transmission, but that could be related to other factors. The transmission does have 213k miles despite having been rebuilt at 148k. Might be coincidence, might not. I agree with Ken here though..if something happens afterwards it was fucked anyways and would have failed down the road. Could you have got a few more months out of it...?..maybe, maybe not. The OP was in regards to a manual transmission anyways which are far simpiler inside and should be just fine getting an oil change. If silver shit comes out then get worried hahaha Quote Link to comment Share on other sites More sharing options...
19Cutlass94 Posted January 1, 2010 Report Share Posted January 1, 2010 Quote Link to comment Share on other sites More sharing options...
supertrick_05 Posted January 1, 2010 Author Report Share Posted January 1, 2010 Yeah, sorry...I meant "changing", not "flushing". I know there's a big difference. Sorry for the confusion! Quote Link to comment Share on other sites More sharing options...
AL Posted January 6, 2010 Report Share Posted January 6, 2010 I have changed the fluid in my 91 6 times since i have owned it... (1.5 years, 2000 miles) Each time, it shifts smoother and better... Quote Link to comment Share on other sites More sharing options...
GOT2B GM Posted January 6, 2010 Report Share Posted January 6, 2010 I think thats a bit excessive. Once every couple of years is LOTS Quote Link to comment Share on other sites More sharing options...
AL Posted January 6, 2010 Report Share Posted January 6, 2010 Each time was for a different reason tho... The first time I changed it, it looked black, then I ran it 100 miles and changed it again... Still looked nasty... So after letting it sit for a year till I did my motor swap (which I changed the fluid then too)... Then it wasnt shifting right, so I changed it again (the old fluid was white???)... Then I had to replace my axle seals so I drained it and filled it again, then I had to do an axle seal again (not 400 miles later) So I changed it then also... Quote Link to comment Share on other sites More sharing options...
GOT2B GM Posted January 6, 2010 Report Share Posted January 6, 2010 oh ok. Quote Link to comment Share on other sites More sharing options...
Addicted To Boost Posted January 8, 2010 Report Share Posted January 8, 2010 Then it wasnt shifting right, so I changed it again (the old fluid was white That would be water, Alex. If it wasn't bad, it was probably condensation... but if it was completely white, there was probably a good amount of water that got in somehow. Quote Link to comment Share on other sites More sharing options...
kuntzie Posted January 8, 2010 Report Share Posted January 8, 2010 i change mine once a year, maybe more. Quote Link to comment Share on other sites More sharing options...
AL Posted January 8, 2010 Report Share Posted January 8, 2010 Then it wasnt shifting right, so I changed it again (the old fluid was white That would be water, Alex. If it wasn't bad, it was probably condensation... but if it was completely white, there was probably a good amount of water that got in somehow. From powerwashing it when doing the motor swap/clutch install... The rags I had in there sucked... Glad I took care of it in less than 50 miles Quote Link to comment Share on other sites More sharing options...
ShockTherapy Posted January 8, 2010 Report Share Posted January 8, 2010 Tell her to shut her gaping ass-mouth. x2 That MYTH is only for automatics...but AGAIN, only MYTH! Change the oil. x2 Quote Link to comment Share on other sites More sharing options...
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