Help! 95 Jeep Grand Cherokee Laredo-Violent Shaking. -
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post #1 of 7 Old 07-09-2012, 12:54 AM Thread Starter
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Help! 95 Jeep Grand Cherokee Laredo-Violent Shaking.

Hi, I recently got a 95 Jeep Grand Cherokee Laredo. 4.0 V8 all stock. 197k miles. Calipers got stuck, replaced brakes, rotors and calipers. Supposedly has a rebuilt tranny 45k miles ago, this jeep was a mechanics lien( guy never paid for rebuilt tranny, mechanic kept jeep) But no paperwork.

I towed my 19ft inboard bayliner open bow about 45 minutes through windy hills. It definitely put some strain on the jeep. Since then as i accelerate its a bit more sluggish. but when i get to above 40mph, and only when i accelerate( lightly to heavily) it shakes extremely hard, steering wheel and whole front end just rattles like its going to fall apart. If i step on gas pedal to the metal it will accelerate fine no shake, and when i let go of gas gets perfectly smooth. I replaced cap and rotor/ air filter, fuel filter. All gauges read fine no warning lights come on and no overheating at all.

Suggested to me that u-joints could be going bad. However i drove with a couple doors inside truck and hatch was open so i could hear engine sounds out of muffler... the pitch would change alot and it was chugging and just sounded sick.

Ive read about the death wobble... but from what Ive heard that happens after hitting a certain speed and is a steady shaking. Mines only when i accelerate.

It seems like its not getting enough gas, but at the same time it doesnt seem to have any less acceleration.

I am stumped, but since I have three kids and this is my only vehicle, I'm hoping someone knows what this could be? I sincerely appreciate everyone's time!

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post #2 of 7 Old 07-09-2012, 01:44 AM
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First, you need to locate the shaking. Is it the engine or the steering? Is it a 4.0L inline 6 or a 5.2L v-8?
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post #3 of 7 Old 07-09-2012, 01:53 AM Thread Starter
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Well when its shaking the entire steering column shakes really hard. The whole vehicle jerks though. My wife could see it when it shook following behind me in her car. Thats what made me think its steering or u-joint or something... but the engine sounds and the chugging and half-sputtering is what made me question that.

And sorry yes its a 5.2 V8... not sure why i put 4.0
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post #4 of 7 Old 07-09-2012, 09:47 AM
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The gas issue could be a ton of issues from fuel to electronic. Does it rev up fine at idle and in the low gears or is the issue throughout every gear? Did you run it low on gas?

The death wobble could also be a ton of issues. Is there play in any of the steering linkages? Are the tires balanced correctly (can check doing a tire rotation to see if it gets any better or the shake moves to the rear)? Are the bushings in the control arms good? Are the hubs and ball joints good? To rule out a u-joint, grab the drive shaft and shake it to see if there is any play in it. I have yet to see a u-joint cause death wobble issues.

1986 Jeep Comanche 126000+ miles
Long Bed, Chevy 350 TPI (5.7L V8), AX15, NP231
Roll Bar, 15/38.5R16.5 Ground Hawgs, Bastard lift (Custom 3-link long arm system, 4.5" Rusty's front springs w/ 1.75" spacers and 6.5" RC shocks, SOA rear), Dana 60HP/Sterling 10.25, 4.10's, Recessed winch, more mods to come...

1992 Jeep Comanche 174000+ miles
Short Bed, 4.0L I6 HO, AX15, NP231
In the process of doing a frame up restoration.

1990 Jeep Cherokee XJ 207774 miles
4.0L I6, AW4, NP231. Tom Woods SYE and Drive Shaft, Rusty's 8.0" Long Arm Suspension Lift, 36/13.5R15 Super Swamper IROK's, Dana 30 Front, Tube Diff Guard, Dana 44 Rear, 4.56 gears, Ox Locker, disc brake conversion
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post #5 of 7 Old 07-09-2012, 11:29 AM
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post #6 of 7 Old 07-09-2012, 09:28 PM Thread Starter
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When i rev in idle it does shake a bit, engine is definitely running rough. And it does that really bad shaking i think in 3rd and fourth gear only when im accelerating(without stomping on pedal)
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post #7 of 7 Old 02-05-2015, 02:15 PM
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Sorry to bring up an old thread, but my 1998 Jeep Grand Cherokee 5.2L was having a similar problem. I could not tell if it was the engine, transmission, u-joints or a gremlin. I knew it was not the death wobble because I had already learned that lesson on a previous lifted ZJ. I had replaced the cap, rotor button, spark plugs (Champion copper), plug wires (Taylor 8mm) and fuel pump about 9 months/8,000 miles ago. Although my tune-up was not that old, I replaced the distributor and ordered a MSD coil. I began to fear that it was the transmission or torque convertor because it would not shake when Overdrive was turned off. Before installing the MSD coil, I finally figured out my problem. My friend helping me with the tune-up neatly zip tied the plug wires together because they did not come with separators. The problem was solved after putting the plug wires in separators and making sure that they did not touch. I hate to admit to my stupidity, but maybe it will save someone some time and money. PLEASE take my advice and DO NOT ZIP TIE PLUG WIRES TOGETHER!!!

2007 Jeep XK 4x4 - 4.7L
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Last edited by BAMAJEEPGRAND; 02-06-2015 at 12:55 PM.
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