Hi Guys. So my dynamic list of chronic Envoy problems continues. The latest chapter in my saga began tonight and as a result has caused me to have to re-prioritize the list and beg for your help, instead of fumbling through it as I normally would.
Problem: The parking brake light stays on. My questions are in bold below, as are the eight trouble codes I get, but please note that two of the codes appear twice and I am not asking to address the O2 related codes. Just the parking brake problem/codes Thank You
It's the coldest night so far this year (25F) and as anyone who lives in cold weather knows, things start to act up when it gets cold.
Thinking it might just be stuck, I attempted to free it up by pulling the brake lever.
I just kept jerking my lever.(🥴) Yanking it up and then down, up and down and on my final jerk, it felt like the cable broke and as a result, there's no resistance and no ratcheting sound. It's a limp / dead lever now.
Strangely, as I was pulling it, the light would go off when the lever was pulled about 2/3 of the way, but would come back on when I released it or pulled the lever to its highest point.
I have 8 trouble codes. Please note that my OBDII reader does NOT save codes, so it's blank every time I plug it in. I mention that because I don't understand then why I have two codes that repeat when I scan.
I have six P codes in total and two of those codes appear twice.
Here's what comes up and in this order > P0140, P0137, P0138, P0455, P0137 and P0455. So code P0137 shows up twice in the list of codes scanned and P0455 shows up twice.
I also have codes C0455 & C0244
I still need to drive the vehicle. I test drove it about 20 miles tonight. I heard a little squeaking at first which went away quickly. When I got to my destination, I checked the rear wheels and the caliper to see if anything felt hot, it didn't.
The brakes feel normal, but I feel like at least one and maybe both of the parking brakes are slightly hanging-up just a little bit. I might be imagining it, but I feel like when I let off the gas, the vehicle slows down just tiny bit faster than normal due to the PB dragging. If that's happening it's very minor though.
So my diagnosis is this... I think something in the Parking Brake system was hung up, the cable broke and now the P Brake(s) are still slightly engaged. It's only a minor or slight rubbing though because they didn't work very well [due to lack of adjustment] prior to the cable braking. For the record, the parking brake pads are fairly new. I replaced the shoes on both sides at some point in 2022.
I think I need to: Check the cable from the lever inside and all the way back to the rear end and see where it's broken... ok who cares?
But... my concern is that the "always on" brake light could be an indication of another part of the braking system having failed and could lead to me losing all braking ability.
1. Do you think that's a possibility?
2. If the cable is snapped, is there any problem with adjusting the P brakes so that they don't make any contact (whether I adjust or remove the cable tension or adjust the shoes or something along those lines) and then continuing to drive the vehicle for now and then addressing the broken cable issue when the weather warms up?
3. So ahead of crawling underneath it tomorrow, does anyone have any thoughts?
Side note: When I removed the fuel tank last month, I noticed that the PB cable where it splits off to two wheels, that [bracket] or whatever you call it was extremely rusty. I started to remove the rust and was going to fix it, but it's bad and it all needs to be replaced at this point, so I left it. I don't care if the P Brake works right now.
I installed two new calipers and rotors (and pads of course) in the front last month as well as the rear pads. The rear calipers were fine.
Thanks so much for your help. I hope that everyone has a very Happy Thanksgiving and gets to spend it with their families.
Problem: The parking brake light stays on. My questions are in bold below, as are the eight trouble codes I get, but please note that two of the codes appear twice and I am not asking to address the O2 related codes. Just the parking brake problem/codes Thank You
It's the coldest night so far this year (25F) and as anyone who lives in cold weather knows, things start to act up when it gets cold.
Thinking it might just be stuck, I attempted to free it up by pulling the brake lever.
I just kept jerking my lever.(🥴) Yanking it up and then down, up and down and on my final jerk, it felt like the cable broke and as a result, there's no resistance and no ratcheting sound. It's a limp / dead lever now.
Strangely, as I was pulling it, the light would go off when the lever was pulled about 2/3 of the way, but would come back on when I released it or pulled the lever to its highest point.
I have 8 trouble codes. Please note that my OBDII reader does NOT save codes, so it's blank every time I plug it in. I mention that because I don't understand then why I have two codes that repeat when I scan.
I have six P codes in total and two of those codes appear twice.
Here's what comes up and in this order > P0140, P0137, P0138, P0455, P0137 and P0455. So code P0137 shows up twice in the list of codes scanned and P0455 shows up twice.
I also have codes C0455 & C0244
I still need to drive the vehicle. I test drove it about 20 miles tonight. I heard a little squeaking at first which went away quickly. When I got to my destination, I checked the rear wheels and the caliper to see if anything felt hot, it didn't.
The brakes feel normal, but I feel like at least one and maybe both of the parking brakes are slightly hanging-up just a little bit. I might be imagining it, but I feel like when I let off the gas, the vehicle slows down just tiny bit faster than normal due to the PB dragging. If that's happening it's very minor though.
So my diagnosis is this... I think something in the Parking Brake system was hung up, the cable broke and now the P Brake(s) are still slightly engaged. It's only a minor or slight rubbing though because they didn't work very well [due to lack of adjustment] prior to the cable braking. For the record, the parking brake pads are fairly new. I replaced the shoes on both sides at some point in 2022.
I think I need to: Check the cable from the lever inside and all the way back to the rear end and see where it's broken... ok who cares?
But... my concern is that the "always on" brake light could be an indication of another part of the braking system having failed and could lead to me losing all braking ability.
1. Do you think that's a possibility?
2. If the cable is snapped, is there any problem with adjusting the P brakes so that they don't make any contact (whether I adjust or remove the cable tension or adjust the shoes or something along those lines) and then continuing to drive the vehicle for now and then addressing the broken cable issue when the weather warms up?
3. So ahead of crawling underneath it tomorrow, does anyone have any thoughts?
Side note: When I removed the fuel tank last month, I noticed that the PB cable where it splits off to two wheels, that [bracket] or whatever you call it was extremely rusty. I started to remove the rust and was going to fix it, but it's bad and it all needs to be replaced at this point, so I left it. I don't care if the P Brake works right now.
I installed two new calipers and rotors (and pads of course) in the front last month as well as the rear pads. The rear calipers were fine.
Thanks so much for your help. I hope that everyone has a very Happy Thanksgiving and gets to spend it with their families.
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