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04-09-2017
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Senior Newbie
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Join Date: Mar 2017
Location: Canberra
Posts: 56 What Jeep do I drive?: WG
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Liked 5 Times in 5 Posts
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transmission flare
Hello.
Lately Im getting a bit of a transmission flare between first and second gear change. The rest of the gears change pretty smooth.
No MIL's.
any starting points? I have a new battery and charging system is working well.
could this as simple as a transmission fluid change ?
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04-09-2017
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Full Flexer
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Join Date: Feb 2013
Location: Geelong. Vic.
Age: 51
Posts: 1,163 What Jeep do I drive?: WG
Likes: 511
Liked 342 Times in 221 Posts
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By 'flare' do you mean it's been slipping as it changes from 1st into 2nd?
If so, and it's been doing it a while, sorry but your second ratio clutch pack is probably toast.
How many k's on the car and has the tranny been serviced well and looked after?
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04-09-2017
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Irok Bandit
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Join Date: Apr 2012
Location: Wang NSW
Age: 56
Posts: 4,431 What Jeep do I drive?: JT
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Oversized 1-2/4-5 Overlap Control Valve Kit
Symptoms:
1-2 Harsh
4-5 Harsh
1-2 Bump
4-5 Bump
1-2 Flare
4-5 Flare
Slipping gears
http://www.sonnax.com/parts?&categories[]=3&makes[]=14&unit_relationships[]=211&areas[]=4&types[]=Valve%20/%20Sleeve
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04-09-2017
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Full Flexer
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Join Date: Feb 2013
Location: Geelong. Vic.
Age: 51
Posts: 1,163 What Jeep do I drive?: WG
Likes: 511
Liked 342 Times in 221 Posts
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PS. Obvious, but...we've seen it all... 
Have you checked the transmission fluid level?
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05-09-2017
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Senior Newbie
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Join Date: Mar 2017
Location: Canberra
Posts: 56 What Jeep do I drive?: WG
Likes: 17
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i might just change the fluid and give it a flush before I rip it off.
cars done 265,000 . i dont know how well its been treated. I picked it up from a farmer from rural NSW so i dont think its had an easy life. He used it to tow a fair bit so...
that Oversized 1-2/4-5 Overlap Control Valve Kit sound interesting but not worth time and dollars to do it at this stage.
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05-09-2017
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Lowranger Shocker
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Join Date: Apr 2007
Location: Dracula's next door neighbor
Age: 35
Posts: 1,609 What Jeep do I drive?: WJ
Likes: 93
Liked 231 Times in 188 Posts
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If it only does it on the 1-2 change, then I don't expect changing the overlap sleeve will help, as the 1-2 and 4-5 shift groups are controlled by the same overlap sleeve.
It's a cheap bit of kit but not a lot of improvement if the flare comes from a used clutch pack. And zero improvement if the flare is caused by a broken sprag.
The NAG1 usually suffers from 3-4 flare and the biggest cause in my opinion is wear in the K2 clutch pack. I swapped my transmission with one with more wear in the K2 clutch pack and the flare got worse. I kept my valvebody, which had the entire overlap sleeve kit from Sonnax.
Does it only do it when hot?
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Quote:
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Originally Posted by Barefoot
Hey I wonder what happens if I plug this wire in therAAAAAGGGGGGHHHH............
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07-09-2017
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Senior Newbie
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Join Date: Mar 2017
Location: Canberra
Posts: 56 What Jeep do I drive?: WG
Likes: 17
Liked 5 Times in 5 Posts
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Quote:
Originally Posted by Adrian D
Does it only do it when hot?
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noticeable only when cold or coming up to temp. Hot it still does it, but the flares are shorter.
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