Jeep Struggling to Accelerate

[TJay123]

I have an Automatic 2004 Jeep Wrangler TJ. Recently I was going down the interstate at around 70 mph and the Jeep decided to slow down to about 45-50 mph. Pulled over to the side of the road and started it up and limped home at 45 mph. No check engine lights on the dash. The Jeep is continuing to bog down at about 45 and almost makes a strange whining noise almost like a pump straining noise when accelerating. The Jeep just struggles to accelerate up to speeds and at some points won’t accelerate at all. Just got the transmission fluid and filter change to see if that would help. No change. Today I found after about 30 minutes of driving the radiator fluid in the over flow was boiling? Replacing the radiator cap now per a recommendation to see if it helps. Also to mention we did an oil change and oil filter replacement prior to this and the oil pressure gauge is a little higher than normal. Any ideas?

 

[derekmac]

Might need just a tad more info, lol!

 

[Apparition]

Too much detail, not sure how to respond

EDIT: sarcasm

 

[TJay123]

Sorry updated it now

 

[TJay123]

Might need just a tad more info, lol!

Just updated the information

 

[Apparition]

How many miles on it?

 

[TJay123]

How many miles on it?

97,000

 

[TheBoogieman]

TPS or clogged cat? Stuck thermostat or water pump quit for other issue? It could be many things.

 

[Apparition]

TPS or clogged cat? Stuck thermostat or water pump quit for other issue? It could be many things.

Yep, I was thinking the cat.

 

[TheBoogieman]

Yep, I was thinking the cat.

Love the avatar.

 

[Jerry Bransford]

I dunno, just a guess that your catalytic converter might be starting to clog up and restricting the engine's exhaust. That happened to my 04 with an automatic and its top speed eventually dropped down to 5 mph on the highway. A new cat fixed it.

 

[TheBoogieman]

I dunno, just a guess that your catalytic converter might be starting to clog up and restricting the engine's exhaust. That happened to my 04 with an automatic and its top speed eventually dropped down to 5 mph on the highway. A new cat fixed it.

My wife's KJ (42rle) did that and "supposedly" burned up the transmission before the 2 hour drive home was over. At least that's what the transmission shop told us.

 

[Indy]

Any codes in the ECU?

 

[TJay123]

Any codes in the ECU?

Transmission shop had no codes In the transmission. Just had a check engine light pop up on the dash for a second than disappeared.

 

[TJay123]

I dunno, just a guess that your catalytic converter might be starting to clog up and restricting the engine's exhaust. That happened to my 04 with an automatic and its top speed eventually dropped down to 5 mph on the highway. A new cat fixed it.

Yea my new top speed seems to be getting worse I can’t go over 35 now .

 

[CharlesHS]

Purchase a infrared thermal thermometer and check the entering and exiting temperatures of the Pre and Primary Catalytic Converters... Operating temperatures are around 500*.
Climb under the Jeep and listen to the CCs for a rattling sound... This would indicate the CC honey comb is breaking apart.
You can take the Jeep to an exhaust shop they will test back pressure on either side of the CC to determine if the CC is plugged.

 

[Apparition]

My wife's KJ (42rle) did that and "supposedly" burned up the transmission before the 2 hour drive home was over. At least that's what the transmission shop told us.

I drove 8 hours under 55 on a Sunday to get home when coming back from Moab a couple years ago cause my cat failed in Nebraska and I had no other choice. It didn't affect my transmission at all. Over 55 I'd get a random misfire code due to engine load and it'd go into limp mode.

 

[TheBoogieman]

I drove 8 hours under 55 on a Sunday to get home when coming back from Moab a couple years ago cause my cat failed in Nebraska and I had no other choice. It didn't affect my transmission at all. Over 55 I'd get a random misfire code due to engine load and it'd go into limp mode.

This thing wouldn't go 10 mph for 2 hours. Aamco transmissions were trying to get $1500 I'm guessing. I paid $3000 for the "Jeep" and it lasted 3 years, until I drove it for 3 days. I got $750 for it at the salvage yard.
p.s. She loved it and I still hear about how "I ruined her favorite Jeep".

 

[B252]

This thing wouldn't go 10 mph for 2 hours. Aamco transmissions were trying to get $1500 I'm guessing. I paid $3000 for the "Jeep" and it lasted 3 years, until I drove it for 3 days. I got $750 for it at the salvage yard.
p.s. She loved it and I still hear about how "I ruined her favorite Jeep".

I'm sure "It ran just fine before you drove it!"
That's usually what I hear. lol