TruthSeeker
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So my daughter purchased a used 2020 Jeep wrangler unlimited, one or two years old at this point. She started having shifting issues, would't shift out of 2nd or would make it to 5th and wouldn't upshift. On the highway it wouldn't go past 7th gear. This is and 8 speed we are talking about. Since it had 50,000mi and even though Jeep says it has lifetime oil, we all know that the lifetime is extended by changing the oil.
So, I changed the oil and filter. This seemed to make a difference, placebo affect unfortunately. Came back again and this time when it made it to 5th, it would shudder and vibrate badly. Took it to a couple of transmission shops, you need a transmission rebuild or a new one. During all of this, no error codes! Took it to a dealer, no error codes, mechanic said, clutches slipping, needs a rebuild. Not believing any of this, changed the fluid again and purchased an OBD scanner and a jscan app and went in and reset the TCM(transmission control module). This seemed to help.
Mind you, this has been going on for months. All the while It felt like the brakes were on, me blindly thinking transmission, kept looking in that direction. It finally all came to a head when my daughter came to visit and said it was now squeaking and not wanting to go. Tested it briefly in the driveway, transmission seemed fine but squeak was coming from the front axle. Jacked it up, front left tire locked. Consulted with a couple of mechanic cousins, possible bad calipers. Changed the calipers, pads. Same thing. When changing the pads I noticed that the left pads were down to the squealers, right side like new. It has always, since day one, had a little pull to the right when pushing the brakes, never really paid it much attention.
Whew, sorry it's so long. So finally another cousin(paint and body shop owner) said hey, I know what the problem is, happened on a camper of mine. Turns out, it is Jeep in their infinite wisdom, put steel, NOT stainless steel clamps on the front brake hoses. These said clamps are ALL facing upward so as to catch road salt, dirt, etc... Yes, they did this on purpose!! We all know that rust expands and it will expand in the direction of least resistance. So the steel clamps started rusting as planned, and slowly squeezed off the brake line. So every time the brake was pressed, it essentially locked the brake. I sawed one of the clamps open to prove what was going on. Please see attached images.
In the end, everything is shifting like new, brakes don't pull and mpg improved tremendously.
P.S. They put not one, but THREE clamps on the hose.
So, I changed the oil and filter. This seemed to make a difference, placebo affect unfortunately. Came back again and this time when it made it to 5th, it would shudder and vibrate badly. Took it to a couple of transmission shops, you need a transmission rebuild or a new one. During all of this, no error codes! Took it to a dealer, no error codes, mechanic said, clutches slipping, needs a rebuild. Not believing any of this, changed the fluid again and purchased an OBD scanner and a jscan app and went in and reset the TCM(transmission control module). This seemed to help.
Mind you, this has been going on for months. All the while It felt like the brakes were on, me blindly thinking transmission, kept looking in that direction. It finally all came to a head when my daughter came to visit and said it was now squeaking and not wanting to go. Tested it briefly in the driveway, transmission seemed fine but squeak was coming from the front axle. Jacked it up, front left tire locked. Consulted with a couple of mechanic cousins, possible bad calipers. Changed the calipers, pads. Same thing. When changing the pads I noticed that the left pads were down to the squealers, right side like new. It has always, since day one, had a little pull to the right when pushing the brakes, never really paid it much attention.
Whew, sorry it's so long. So finally another cousin(paint and body shop owner) said hey, I know what the problem is, happened on a camper of mine. Turns out, it is Jeep in their infinite wisdom, put steel, NOT stainless steel clamps on the front brake hoses. These said clamps are ALL facing upward so as to catch road salt, dirt, etc... Yes, they did this on purpose!! We all know that rust expands and it will expand in the direction of least resistance. So the steel clamps started rusting as planned, and slowly squeezed off the brake line. So every time the brake was pressed, it essentially locked the brake. I sawed one of the clamps open to prove what was going on. Please see attached images.
In the end, everything is shifting like new, brakes don't pull and mpg improved tremendously.
P.S. They put not one, but THREE clamps on the hose.
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