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#1
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gear box 2nd to 1st gear slam
gear box 2nd to 1st gear slam any thoughts would be greafull |
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#2
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Replacing the solenoids, mechatronic sleeve, and seals inside the trans usually sorts this problem. I have to do the same to mine but I drive around the problem currently. Never does it manually shifting or if I come to a complete stop at every stop sign, light, etc.
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2005 X5 4.4i Build 04/05 Maintenance/Build Log Nav, Pano, Sport (Purchased 06/14 w/ 109,000 miles) (Sold 8/15 w/121,000 miles) 2006 X5 4.8is Build 11/05 Maintenance/Build Log Nav, DSP, Pano, Running Boards, OEM Tow Hitch, Cold Weather Pckg (Purchased 08/15 w/ 90,500 miles) 2010 X5 35d Build 02/10 Nav, HiFi, 6 DVD, Sports Pckg, Cold Weather Pckg, HUD, CAS, Running Boards, Leather Dash, PDC, Pano (Purchased 03/17 w/ 136,120 miles) |
#3
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It would be helpful if you inform the group as to what type of engine you have. Each engine group used a different box. V8 engines normally had zf trans whereas i6 used the GM trans, don't know what the hell was used in a diesel, since diessel weren't that popular in the good ole USA.
If i had to guess something is not sealing correctly, either an o-ring or one of the drum has a leak or crack. When the trans is cold, the fluid can generate enough pressure but as it warms up the hydraulic pressure is less until it requires a great deal of engine speed to spin the trans pump to create the necessary pressure and then you get that"BANG" shift. Could also be a worn valve body, how many mileage is on the X?
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2006 Infiniti G35 2001 BMW 3.0I E53 X5 Build date 08/2000 SOLD Lotus Europa 1970 Destroyed by fire Lotus Europa 1970 S2 Renault Powered Lotus Type 52 1970 Twincam Webers Powered PORSCHE 911 Targa 1982 The Garage Queen Audi Avant donated to Kars for Kids BMW 525IT Sold Audi 4000CS Quattro Sold Jensen Healey Lotus Powered Sold Opel 1900 Sold Triumph Spitfire 1971 Sold Triumph Spitfire 1968 Sold Plymouth "Cuda" 340 Six pack SOLD |
#4
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150k mile
3.0d engine 2004 |
#5
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maf possibility
Believe it or not, when I unhook my MAF and drive my 3.0l, it shifts funny, but it really slams the shift from 2nd down to 1st. Hook it back up, and all 5 gears shift perfect up and down. Go figure.
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#6
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Hi
The diesel has the ZF. We went through this as well. Highly recommend you address it asap as although you can cure the slam as Crystalworks said, the damage caused by the slamming extends throughout the drive train. We had EPIC downshifts and didn't know how long the previous owner had left it like that. Replaced the solenoids, the rubber seals and of course new oil, reset the adaptions and trans is smooth and operates like new.
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PREVIOUS 2006 E53 X5 3.0D 2004 E53 X5 4.8is 2004 E53 X5 4.4 Sport 2011 E70 X5 3.0D with Aero kit 2009 E71 X6 50i Sport 2009 E70 X5 50i Sport 2007 E60 540 M Sport LCI (All time favourite car) 2007 E70 X5 4.8i Sport 2005 E53 4.8is 2003 E53 3.0 Sport |
#7
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Quote:
my map is un plugged at the moment due to it is not working and awaiting a new one. |
#8
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That being the case, might try replacing the MAF before dropping the tranny.....Just sayin
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#9
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Quote:
The transmission computer does in fact use the map sensor as an input to help decide when to shift the transmission. the MAP sensor can affect the transmission shifting as ive been told |
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