khryslerkid
Well-Known Member
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- Mar 10, 2010
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- 31,667
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- Location
- Hanover, Pennslyvania
Today my friend calls me and said she was at her mom's place. On the way there her 2016 Jeep Compass goes into limp mode. She pulled over and got her owner's manual out to see what the three lights were that had come on. After awhile she started the car and just the check engine light was on. She continued to her mom's without any problems. After being at her mom's for a couple of hours she restarted it and the check engine light was off and all seemed to be fine.
She left her mom's and headed to my place, about a 45 min trip. When she pulls in you could smell the brakes were hot. The left front wheel was too hot to touch. The other three wheels were just warm.
So I jack up the left front and the wheel wouldn't budge, locked up as tight as could be. I removed the wheel and tried to compress the caliper. I got just enough play in the pads to remove the caliper. I used a large C clamp on the piston and it wouldn't budge.
Off we go to the parts store to get a new caliper. Came back, installed the caliper, bled the caliper (found out you couldn't bleed it unless the engine was running) went to turn the rotor and it was locked up!
Now what? I'm thinking it might be the ABS. Was it one of the lights she had seen? Plugged in my OBD scanner and the only code in the memory was an EGR code. There wasn't any lights on as she drove back to my place or when she pulled in.
So let's think simple things. I cracked the bleeder on the new caliper and the rotor would turn. Tightened the bleeder, hit the brake pedal and it was locked up again. So I loosened the brake hose where it connects to the hard line and I barely got the rotor to turn.
Off to the parts store to get another hose. Installed the hose, bled the caliper, good to go! I have heard people talk about a bad brake hose before but this was actually the first one I've ever encountered. I tried blowing compressed air both ways through that hose and nothing. Totally stopped up!
Now for making a correct diagnosis what should I have done first? (I know the answer)
She left her mom's and headed to my place, about a 45 min trip. When she pulls in you could smell the brakes were hot. The left front wheel was too hot to touch. The other three wheels were just warm.
So I jack up the left front and the wheel wouldn't budge, locked up as tight as could be. I removed the wheel and tried to compress the caliper. I got just enough play in the pads to remove the caliper. I used a large C clamp on the piston and it wouldn't budge.
Off we go to the parts store to get a new caliper. Came back, installed the caliper, bled the caliper (found out you couldn't bleed it unless the engine was running) went to turn the rotor and it was locked up!
Now what? I'm thinking it might be the ABS. Was it one of the lights she had seen? Plugged in my OBD scanner and the only code in the memory was an EGR code. There wasn't any lights on as she drove back to my place or when she pulled in.
So let's think simple things. I cracked the bleeder on the new caliper and the rotor would turn. Tightened the bleeder, hit the brake pedal and it was locked up again. So I loosened the brake hose where it connects to the hard line and I barely got the rotor to turn.
Off to the parts store to get another hose. Installed the hose, bled the caliper, good to go! I have heard people talk about a bad brake hose before but this was actually the first one I've ever encountered. I tried blowing compressed air both ways through that hose and nothing. Totally stopped up!
Now for making a correct diagnosis what should I have done first? (I know the answer)
