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Old 06-24-2014, 01:04 PM   #1
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04 will not go over 50?

Kay so my wife's TJ won't go over 50 miles an hour. Nothing comes on in the gauges. Foot all the way down to the floor. When it brake it pulls hard right.

Specs:
2004
Rubicon
5spd
35in tires
4in suspension lift.

Need help ASAP due to having one vehicle since my trucks in the shop. Thanks!

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Old 06-24-2014, 01:34 PM   #2
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It can be so many things. Hard to diagnose without driving it.

Disconnect the neg battery cable for 20 minutes or so to reboot the computer. Drive it then.

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Old 06-24-2014, 01:36 PM   #3
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I literally just removed the cable. I'll let you know what happens. Thanks!
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Old 06-24-2014, 02:06 PM   #4
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Was it regeared after putting on the 35's?
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Old 06-24-2014, 02:07 PM   #5
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alright so hooked it back up and when it's parked and running the jeep shakes now. Stick shift moves pretty badly too
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Old 06-24-2014, 02:30 PM   #6
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Does it shake when the clutch is pushed in? Does the clutch feel less than normal?
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Old 06-24-2014, 02:33 PM   #7
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throttle position sensor?
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Old 06-24-2014, 02:35 PM   #8
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throttle position sensor would throw a code. is there an engine light?
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Old 06-24-2014, 02:53 PM   #9
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Quote:
Originally Posted by KLHarvey View Post
Kay so my wife's TJ won't go over 50 miles an hour. Nothing comes on in the gauges. Foot all the way down to the floor. When it brake it pulls hard right. Specs: 2004 Rubicon 5spd 35in tires 4in suspension lift. Need help ASAP due to having one vehicle since my trucks in the shop. Thanks!
sounds to me like a seized brake calliper? Check if one side calliper or even drum is hot after a short run as that explains why it would pull to one side on braking. With 31 inch tyres mine won't pull or cruise at much over 50 in fifth gear due to original axle gearing. If I run in fourth to 60 then change to top it's not so bad on a flat road.

Harvey
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Old 06-24-2014, 03:11 PM   #10
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Did you regear the axles so the engine can put out enough power to turn those 35" tires? What happens when you downshift to 4th gear, can you accelerate past 50 then?
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Old 06-24-2014, 04:19 PM   #11
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Quote:
Originally Posted by KLHarvey View Post
alright so hooked it back up and when it's parked and running the jeep shakes now. Stick shift moves pretty badly too
Its the standing still thing that's got me. Broken motor or tranny mount? Pilot bearing? I keep thinking the drive line kind of bending somewhere, if that makes any sense.
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Old 06-24-2014, 04:40 PM   #12
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the pulling to the side sounds like a stuck brake caliper . jack it up see if all wheels spin freely .
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Old 06-25-2014, 05:16 PM   #13
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Have you found the problem? We're all throwing darts in the dark here, wanna know if we hit anything
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Old 06-25-2014, 05:45 PM   #14
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I agree with caliper. If not the problem maybe a plugged cat. Had that happen on a suburban and it threw no codes
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Old 06-25-2014, 05:54 PM   #15
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A caliper dragging when not applying brake would pull to side all the TIme not just when applying brake
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Old 06-25-2014, 07:58 PM   #16
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A caliper dragging when not applying brake would pull to side all the TIme not just when applying brake
not true. I had one partially stuck on the jeep an it did not pull
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Old 06-25-2014, 08:15 PM   #17
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I did not say stuck I said dragging and differential braking can be used to steer a vehicle ( I have personally used it to taxi jets) so I'll grant you possibly not always true at best
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Old 06-25-2014, 08:26 PM   #18
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I did not say stuck I said dragging and differential braking can be used to steer a vehicle ( I have personally used it to taxi jets) so I'll grant you possibly not always true at best
I'll take that i also agree that if it is dragging over time it can heat up to the point of actually stopping the vehicle. I have seen that happen

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