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GM says Tranny Problem Normal

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Old Sep 12, 2004 | 07:47 PM
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Default GM says Tranny Problem Normal

I took my 02 firehawk in to pontiac to have some warranty work done. One thing on the list was the transmission. On my manual transmission Ive been having problems with it not going into reverse fully. Sometimes not at all, and sometimes, enough to grind the gears when you let the clutch out. In order to get it seated fully in reverse, you have to shift it into another gear, general first, then into revers. This problem just started about 3 weeks ago. Swanson Pontiac says this is a normal behavior. After telling them that this problem just started recently, and asking to see the manager, I was told theres nothing they can due, GM has sent out a letter stating that in events such as this there is no fix, and this a normal characteristic of this vehicle.

I had a 99 Ramair for 3 yrs and never had this problem. Ive had this car now for 2 and a half and up until a couple weeks ago I never had this problem.

Anyone here experienceing this.

Any suggestions on what I can do.
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Old Sep 12, 2004 | 07:54 PM
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Sounds like the reverse syncho or blocker ring, maybe even the reverse lockout solenoid.

I would bring it to another dealer.

It is not a normal characteristic of your car.
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Old Sep 12, 2004 | 07:56 PM
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I never really paid attention, but my 01 does the same thing every now and then. MIne has never ground in R though. I guess I am used to it now. Reverse is not sycronized so there is probably nothing you can do like GM said.
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Old Sep 12, 2004 | 07:58 PM
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That is pretty much normal.With the car in neurtal and running the internals are spinning and there are no reverse sycros.Going into 1st or 3rd then reverse will slow the shaft speed down making it easier to engage into reverse.
Anthony
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Old Sep 12, 2004 | 08:11 PM
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Bulletin No.: 03-07-30-007A
Date: November 04, 2003
A/T - 4L60-E, 4L65-E Delayed Gear Engagement is for the A4 not the manual transmission. I would take it to another dealership.
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Old Sep 12, 2004 | 09:10 PM
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my 94 lt1 6 speed does have a reverse synchro i would think the ls1 version would also
i work at a chevy dealer ill check and see if theyre is a bulletin but it sounds to me like theyre blowin smoke up your ***. by the way my 94 z does have a very hard time in reverse but i have the centerforce p.o.s is your clutch stock?
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Old Sep 12, 2004 | 10:23 PM
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Originally Posted by Cstick
Reverse is not sycronized so there is probably nothing you can do like GM said.
Reverse IS synchronized. I had my tranny rebuilt a couple of times and had new reverse synchro's installed.

If it wasn't synchronized it would be a real pain in the *** to get it into reverse.
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Old Sep 12, 2004 | 11:45 PM
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Originally Posted by tonyb
That is pretty much normal.With the car in neurtal and running the internals are spinning and there are no reverse sycros.Going into 1st or 3rd then reverse will slow the shaft speed down making it easier to engage into reverse.
Anthony
Remind me not to have you rebuild my tranny

T56 Service Manual
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Old Sep 13, 2004 | 12:11 AM
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Reverse most certainly is syncronized. The same thing happened in my '00 WS-6, and '99Z. I had the Z's rebuilt to try and stop it, but it came back eventually. The WS-6 had a terrible reverse problem starting w/ the syncro with the previous owner. It got so bad that he eventually ended up milling the gear down to almost nothing. I don't think I've met an M6 F-body owner w/o some sort of syncro or fork problem. Just like they said, it IS common, but sure as hell isn't right...Off to the next dealer bud...
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Old Sep 13, 2004 | 12:32 AM
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New dealer like everyone said.

Your synchro most likely.

Not the reverse lockout solenoid. If it was you could still get into reverse with some effort but NO grinding.

That tranny needs to be fixed.
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Old Sep 13, 2004 | 06:44 AM
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I thought it might be the synch. My girlfriend also had a 99 trans am, and she had a similar problem right after she bought the car. The dealers replaced the synchroniser and it resolved. Im guessing since my car is about 1500 miles short of the warranty expiration, the dealer just doesnt want to deal with it.

Ill take it to another dealer, thanks.
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Old Sep 13, 2004 | 09:03 AM
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reverse is sychronized, but unlike 1-6's the bloker ring for reverse is brass insted of carbon or paper, depending on what year you have, i am in the process of rebuilding mine as we speak. but reverse does have a sychro and the blocker ring is brass.
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Old Sep 13, 2004 | 10:45 AM
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If it wasn't synchronized it would be a real pain in the *** to get it into reverse.[/QUOTE]

OK I am wrong about the T56, but a lot of manual trans do not have a syncro for the reverse. The T5 i did last month did not have them. They are just a spur cut gear.
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Old Sep 13, 2004 | 04:18 PM
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Ok I admit defeat on the syncros but every stick I have ever owned worked best going from 1st to reverse.Now that I read that the t56 has a brass blocker now I see why this trans needs to be shifted the same.
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Old Sep 13, 2004 | 04:47 PM
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I am still a little curious why there is a sycro on the T56 reverse. If nothing is moving inside the trany (like when you are stopped and ready for reverse) a syncro will not help anything. They only increase or decrease the speed of the shafts. Obviously they are not working right in the T56. That is why I would have never guessed there was one in it.
What difference does it make what the blocker ring is made of, all the transaxles and trans I have seen are brass. If not parts are turning inside the tranny, defeats the purpose of a syncro.
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Old Sep 14, 2004 | 06:33 PM
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Default I had the same problem!

Man my 98Z did the same thing. It started out just doing it every now and then and before I knew it, it was happening every time I put the car in "R" and let the clutch out it would jump out and grind. Sometimes it wouldn't jump out but would still grind. Funny how when I took my car to Chevy they were trying to charge me $4500 because my warranty was expired. The only thing that would help me sometimes was letting the clutch out very very slowly then it would jump into gear and the whole car would shake. I ended up buying a upgraded tranny from a member here (ESP101), a z06 clutch kit, new slave master, and it has not jumped out or had a grind in "R" since. I'll talk to ESP101 and ask him what he found wrong with my tranny! I hope this helped.
fg
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Old Sep 14, 2004 | 07:16 PM
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Default tranny

mine is doing the same thing. It is not normal at all. its either your shift fork or the synchro. if it does this for a while your reverse gear maybe starting to round out
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Old Sep 16, 2004 | 06:01 PM
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Just to join the club, I have the same problem with my 02 Firehawk...It's a pain in the *** sometimes, all my gears are a little difficult to get into at times, guess I'll just have my buddy's shop rebuild the whole thing under warranty, god bless aftermarket warranties!!

Later

Dave
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Old Sep 16, 2004 | 10:20 PM
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mine does it to, just started noticing really...defiently gets annoying
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Old Nov 9, 2004 | 03:54 PM
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i think i have the same problem but it never grinds. also, it feels like its worse when its cold... PITA not being able to reverse, now i'll just back into all my parking spots.
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