Crash-Bang noise
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New User
Joined: Jul 2005
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From: Tucker, GA
Crash-Bang noise
I've asked this question on other boards and gotten no good response. If anyone can help I'd appreciate it. Her's the deal. I can cruise at up to 90mph all day long, but as soon as I hit 90 or above there is a loud noise and it feels like I've run over something. Now I know "Don't drive at 90!". Around here that's easier said than done. I don't make a habit of it, but this really seems like there is a problem and I would like to find it and fix it.
Specs on the vehicle: '96 Explorer Sport 4x4; 143K; 4.0L OHV; 4R55E tranny; 3.73 LSD gears, stock 235 75 15 tires. I think that's all the pertinant drive train info. Anyone have any ideas?
Specs on the vehicle: '96 Explorer Sport 4x4; 143K; 4.0L OHV; 4R55E tranny; 3.73 LSD gears, stock 235 75 15 tires. I think that's all the pertinant drive train info. Anyone have any ideas?
Elder User
Joined: Jan 2004
Posts: 805
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From: Pauline, South Carolina
Is your wear and pressure between the front and rear tires matched? It makes me wonder if the automatic 4 wheel drive could be engaging because it senses enough speed difference between the front and rear. I could see engagement at 90 mph resulting in a loud noise and a bump in the steering/suspension.
Elder User
Joined: Jan 2004
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From: Pauline, South Carolina
I don't know then. I've had my '92 and my '03 up there sometimes, albeit infrequently, and I've never had that problem. Have you checked the universal joints in your drive shaft. If one is loose, you may be hitting some resonance frequency or something. Does it sound and feel like the front or the back?
Senior User
Joined: Jun 2005
Posts: 102
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From: Wisconsin
90 mph... and you do this what daily? I've had my 91 Sport 5 1/2 lift 32" tires, some mods to engine and exhaust up to 90+ or so playing around with friends on a paved road. I think back now and it was stupid. I just gotta ask ya, why so fast?
I had a Mustang (two really), easy 120+ on highway, heck you can feel the car floating, good thing it's a stright a way. I'm sorry for acting like a dad but 90+ is stupid. One of my mustangs got ripped and I walked away. I thank god for that. I'm still here.
On to your question. First I think there's a speed limiter on your Explorer, can't get passed I think 90 or so mph. Second, you need to realize a Explorer is up in the air compaired to a down to earth car. I'm thinking when you get up to xxxx speed things on your Explorer starts to shake. You need a tight ride to fly through the air at speeds well, one wrong turn you die.
Good luck fixing your problem and next time you want to hit the metal, do it on a race track, some little kids around the corner will want to thank you.
P.S. I'm not tring to get down on you on speeding but I was a kid, played around and I learned. Just tring to pass it along. Just play safe ok.
I had a Mustang (two really), easy 120+ on highway, heck you can feel the car floating, good thing it's a stright a way. I'm sorry for acting like a dad but 90+ is stupid. One of my mustangs got ripped and I walked away. I thank god for that. I'm still here.
On to your question. First I think there's a speed limiter on your Explorer, can't get passed I think 90 or so mph. Second, you need to realize a Explorer is up in the air compaired to a down to earth car. I'm thinking when you get up to xxxx speed things on your Explorer starts to shake. You need a tight ride to fly through the air at speeds well, one wrong turn you die.
Good luck fixing your problem and next time you want to hit the metal, do it on a race track, some little kids around the corner will want to thank you.
P.S. I'm not tring to get down on you on speeding but I was a kid, played around and I learned. Just tring to pass it along. Just play safe ok.
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Joined: Jul 2005
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From: Tucker, GA
I hit 90 very rarely, and only on the Interstate, in a "must pass" situation. Believe me I've been driving long enough to know the limitations and physics involved with the vehicle I am operating. My X is at (or below) stock height.
I have trouble identifying exactly where the noise is coming from. When it happens, the noise and vibration (more like a one tome jolt) feels like I've run over something (I've checked the rear view immediatly after and the road is clear). I'll have the u-joints checked as I was concidering that myself. Anyone else with ideas please feel free to make suggestions.
I have trouble identifying exactly where the noise is coming from. When it happens, the noise and vibration (more like a one tome jolt) feels like I've run over something (I've checked the rear view immediatly after and the road is clear). I'll have the u-joints checked as I was concidering that myself. Anyone else with ideas please feel free to make suggestions.
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Cargo Master
Joined: Nov 2004
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From: Friendswood, Texas
U-Joints would create vibration so I think you can rule this out. Admitadly, I'm stumped without bneing able to hera it myself. Have you taken a look underneath to see if there is any indication of where the noise may have come from like some nice shiny metal of a dent or two. My suspicion would be the transmission or something in the 4WD system (hubs, front differentional, transfer case) as these would be the components that would seem to be less capable of handling the high speed. Sure would help to know how loud and where it was coming from (front or rear of the vehicle).
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