jeepster96
NAXJA Forum User
- Location
- Port townsend,WA
my TC wont lockup and overdrive wont work. sometimes will hunt for it but 90% of the time it just stays in 4th gear. anyone know what the prob could be. its just killing my gas milage:hang:
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AW4?????
- Thread starter jeepster96
- Start date
DaffyXJ
NAXJA Member #929
- Location
- southern MD
Let me guess, tires at 31 inches or bigger and stock (3.55) gears?
- Location
- Hammertown, USA
Check the fuse for the trans controller, it blowing can cause that failure.
Also, if your transmission computer thinks are you pressing the brake pedel for any reason (I've seen switch failures that would cause this).
-C
Also, if your transmission computer thinks are you pressing the brake pedel for any reason (I've seen switch failures that would cause this).
-C
DirtyMJ
NAXJA Forum User
- Location
- Prince George, BC
DaffyXJ said:
Does that cause problems or something?
DaffyXJ
NAXJA Member #929
- Location
- southern MD
DirtyMJ said:
Yeah, The larger diameter tire is rolling a farther distance for each turn of the transmission. The VSS & output shaft sensor report that the tranmission is working harder and down shifts to third. What ends up happenening is the TCU and ECU keep the transmission hunting for gears. It will drop into and out of overdrive with the slightest change in grade of the road.
wishihad1
NAXJA Forum User
- Location
- charlottesville, VA
right here is one of them..lol. i put her in 3 on the gear selector and just drive. isn't too bad till i try to climb some of the mountains going over to the national forest..but im not a speed deamon so it doesn't bother me too much. 5:13s are in the plans though
DirtyMJ
NAXJA Forum User
- Location
- Prince George, BC
DaffyXJ said:
On HO engines? My renix sure as hell doesn't do that - and I am running 31s with 3.55s.
90Blue_XJ
NAXJA Forum User
- Location
- In yer postz fixin yer spellinz.
I think the Renix did not have an output sensor, but I am no expert and like Dirty above mine don't do that
DirtyMJ said:
All the renix equiped jeeps I have driven are sluggish to downshift anyways. I just took a friends 90 MJ with 33s and 3.55s for a cruise the other night and noticed that. It stays in OD better because it is much less willing to come out of OD even with the switch turned to "power"
jeepster96
NAXJA Forum User
- Location
- Port townsend,WA
the aw4 is a 4 speed with locking tc. it dose lock up sometimes but not all the time. the fuses arnt blown. n e thing else
5-90
NAXJA Forum User
- Location
- Hammerspace
TC Lockup is electronically controlled by a solenoid - your solenoid may have blown (it's happened. It's fairly rare, but it's happened.)
Nominal resistance for an AW4 solenoid is 13 ohms +/-2. You can see them when you pull the pan. I could look up which one controls lockup, but I don't recall offhand (maybe someone here does?)
Resistance is measured between the spade lug and the solenoid case.
Nominal resistance for an AW4 solenoid is 13 ohms +/-2. You can see them when you pull the pan. I could look up which one controls lockup, but I don't recall offhand (maybe someone here does?)
Resistance is measured between the spade lug and the solenoid case.
jeepster96
NAXJA Forum User
- Location
- Port townsend,WA
ya if you could that would be help full the trany shop want like 300 bucks just to see if they can figure out the prob so ya help please
