wtf is wrong with my XJ?

[BOX]

wtf is wrong with my XJ?

Feels normal until you hit a hill at highway speed (69 mph). I know an XJ with 37” tires & 4.56 gearing is going to struggle on steep grades, but it just dies. Foot to the floor… 3000rpms going 15-25 mph up hills on the Merritt Parkway. Drove from Hamden to Trumbull to Stamford yesterday & to work today keeping to I-95 or back roads with no problems.
Anyone ever have a similar issue before? When my fuel pump died a few years ago it felt different than this.

[Ruepart Hoaxley]

Transmission?

[Riot]

It was weird...

the best way I can describe it would be to compare it to shifting into to a high gear on at too low of a speed, only the RPM's were normal.


Someone help this guy fix it or it's going to take 10 hours to get PA...Gleacher and I do not want to follow dougie on the backroads.

[clean4drxj]

how long has the fuel been sitting in it, where is it stored, there are alot of variables.

[BOX]

Ran it down to near empty & filled it yesterday.

I'm thinking TPS....

[clean4drxj]

I'd run some seafoam threw it too

[ct67_72]

pull the tranny dipstick and make sure the fluid isnt burnt

[1cleantj]

at highway speed, when it bogs, if you stomp on it, does your jeep downshift ?
if you put in in 1 or 2 then accelerate fast, does it fall on its face at all ? in neutral and revving ? could be fuel issue , check for dirty air filter , could be tranmission related too

[clean4drxj]

I was thinking fuel related but it could be the trans, I guess start with a fuel filter and go from there.

[BOX]

I'd run some seafoam threw it too

Going to try this weekend...

pull the tranny dipstick and make sure the fluid isnt burnt

Looks good...

at highway speed, when it bogs, if you stomp on it, does your jeep downshift ?
if you put in in 1 or 2 then accelerate fast, does it fall on its face at all ? in neutral and revving ? could be fuel issue , check for dirty air filter , could be tranmission related too

I tried putting it into 3 or 1/2 while it was doing it & nothing changed... still could barely make it up the hill & had to pull over.
At first I thought fuel issue, but the fuel pump, filter, & sending unit are only 3 or 4 years old.
Just changed the air filter.
Hoping it is a sensor like the TPS or CPS. Going to order a TPS today.

[Riot]

Didn't the air filter you put in fit a little strange?

[Jeep Creep]

Gleacher and I do not want to follow dougie on the backroads.

wut?

[HeavyMetal]

busted

[Riot]

stop posting as Drew, Will.

[Jeep Creep]