I have a 90 4.0 sport auto 8.25/30 any time that I've pulled with it it has eather been my tent trailer or atv trailer nothing too heavy. On the way to my land I go over a mountain it's 8% grade I have to get down into 2 gear to make it over. I've talked to another guy that has the same set up as me and he can pull the same set up over same mountain in drive with ease should I look into trany or weak motor
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Pulling problem
- Thread starter Tobyxj
- Start date
cruiser54
NAXJA Forum User
- Location
- Prescott, Az
He's probably BSing ya.
souske
NAXJA Forum User
- Location
- The land of competition
What tire size and gears are you running?
WB9YZU
NAXJA Forum User
- Location
- Madison, WI
Dumb Q:
You are pulling in 3rd, not D, right?
And I do thng he is BSing you. 8% is pretty steep under load, regardless of gears and tires.
You are pulling in 3rd, not D, right?
And I do thng he is BSing you. 8% is pretty steep under load, regardless of gears and tires.
Alaskan89XJ
NAXJA Forum User
- Location
- Alaska
Old engine.., check your compression with a threaded gauge/tester.
WB9YZU
NAXJA Forum User
- Location
- Madison, WI
Not really...
1-2 Position starts in 1st, and maxes out in 2nd.
3rd Position starts in 1st and maxes out in 3rd. Used for towing.
"D" Position, or Drive, starts in 1st, and maxes out in OD.
If you tow, you must use 3rd and not "D" or the engine will not stay in the powerband, and the transmission will hunt. You will also get awesomely poor gas mileage and an overheated Jeep from all the power you dump into the tranny to keep up a desired speed.
Also, if your XJ has a transmission power setting switch on the dash, when towing, it should be in "Power" to maximize RPMs between shifts, otherwise it will short shift and be a bit doggy.
This should help a lot, though OS tires don't help either. Did you figure out what gear you have? Well, let's put it another way... Did you ever change them from stock? If not, they are likely 3.55. An older XJ with 3.55 gears and 31's can be a real pooch when towing.
1-2 Position starts in 1st, and maxes out in 2nd.
3rd Position starts in 1st and maxes out in 3rd. Used for towing.
"D" Position, or Drive, starts in 1st, and maxes out in OD.
If you tow, you must use 3rd and not "D" or the engine will not stay in the powerband, and the transmission will hunt. You will also get awesomely poor gas mileage and an overheated Jeep from all the power you dump into the tranny to keep up a desired speed.
Also, if your XJ has a transmission power setting switch on the dash, when towing, it should be in "Power" to maximize RPMs between shifts, otherwise it will short shift and be a bit doggy.
This should help a lot, though OS tires don't help either. Did you figure out what gear you have? Well, let's put it another way... Did you ever change them from stock? If not, they are likely 3.55. An older XJ with 3.55 gears and 31's can be a real pooch when towing.
Last edited:
- Location
- WA state
For a 4 speed auto, what the OP stated is true. 3rd is 1:1, which in most cases is considered Drive. In our XJ's D/OD (also knows as 4th gear)position<above 3 is Overdrive.
