Changed Transfer Case Fluid - CEL Came On???
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Changed Transfer Case Fluid - CEL Came On???
So I very recently purchased a Jeep XJ (1998, 5spd Manual with the I6). Only paid 1500 for it, but it was mostly a pavement pounder and is pretty clean with 150K on the clock.
Anyway - I have been systematically flushing all the fluids on it and I finally got around to the transfer case. I dropped the old fluid (which was brown and disgusting) and put in about a quart and a half of new ATF +4 (cheap walmart brand for now, synthetic in a few hundred miles).
My driveway is slightly inclined (like 3% or so), so I jacked the rear up to level it out while filling, and overfilled it a little bit (there was still fluid running out of the fill hole when I put the plug back in). Drove it around the block in 4-hi and as I was coming home the check engine light came on. Put it back in 2wd but it stayed on (even after an engine restart).
I had only used 4-hi once before, and again just went around the block but I haven't seen a CEL pop up in the 50 miles I have driven it so far. I dont have a scan-tool handy to pull the code (will order one on Amazon right now), but I was wondering what I could have messed up - if the light is even related.
Anyone seen this before? First post on CF and I already ****ed something up
Anyway - I have been systematically flushing all the fluids on it and I finally got around to the transfer case. I dropped the old fluid (which was brown and disgusting) and put in about a quart and a half of new ATF +4 (cheap walmart brand for now, synthetic in a few hundred miles).
My driveway is slightly inclined (like 3% or so), so I jacked the rear up to level it out while filling, and overfilled it a little bit (there was still fluid running out of the fill hole when I put the plug back in). Drove it around the block in 4-hi and as I was coming home the check engine light came on. Put it back in 2wd but it stayed on (even after an engine restart).
I had only used 4-hi once before, and again just went around the block but I haven't seen a CEL pop up in the 50 miles I have driven it so far. I dont have a scan-tool handy to pull the code (will order one on Amazon right now), but I was wondering what I could have messed up - if the light is even related.
Anyone seen this before? First post on CF and I already ****ed something up
#3
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I pretty much figure its unrelated but Ill pull the code to be sure.
I only really did that to get the fluid to cycle fully through the gears (straight ahead for about 1/4 of a mile).
A tad bit more fluid in the transfer case isnt going to hurt anything, right? It was just below the fill port when I cracked it open, so maybe 200ml more fluid.
I only really did that to get the fluid to cycle fully through the gears (straight ahead for about 1/4 of a mile).
A tad bit more fluid in the transfer case isnt going to hurt anything, right? It was just below the fill port when I cracked it open, so maybe 200ml more fluid.
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http://www.centerforqa.com/
http://www.centerforqa.com/licensedatf4brands.html
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If you used the Supertech ATF+4, it's as good as any other. ALL licensed ATF+4 us the same; Chrysler specifies that it be made from a specific Grp III basestock purchased from 1 of 2 companies, and a specific additive pack. This assures that ATF+4 purchased from WalMart, or NAPA, or the dealer, etc will all perform the same.
http://www.centerforqa.com/
http://www.centerforqa.com/licensedatf4brands.html
http://www.centerforqa.com/
http://www.centerforqa.com/licensedatf4brands.html
I did read that somewhere but I have to believe that Supertech's QC is not as good as say Royal Purple's is.
Thanks for the help guys - I thought the CEL might be related but I doubt that it is.
Last edited by investinwaffles; 10-06-2013 at 12:29 AM.
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As long as it's a good quality ATF, the transfer case doesn't care if it's Dex, ATF+4, or even Type F. The difference between the fluids is the amount of friction modifiers, which only affects clutch materials (none in the transfer case).
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