Jeep sucks.... I have no idea how some of you have owned so many

[Deleted member 22728]

The network is crashing - the U codes are likely related to a singular root failure. When the network goes down, in your case in a spectacular fashion, every module that has message traffic on it will register a fail. In one instance, we had a rental unit (JLUR) literally go "insane"; lockers activating, wipers going, infotainment launching ballistic missiles, etc. The failure has related to the sway disconnect harness - CAN HI had grounded to the HVAC evaporator, thus pulling half the network to reference voltage. In other words, CAN LO was attempting to traffic, while HI was screaming like Yoko at the sky. A simple harness repair plus corrective at the harness routing, plus a wipe and relearn. Good as new. I wish you the best. EDIT: syntax, spelling

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[dcmdon]

The network is crashing - the U codes are likely related to a singular root failure. When the network goes down, in your case in a spectacular fashion, every module that has message traffic on it will register a fail. In one instance, we had a rental unit (JLUR) literally go "insane"; lockers activating, wipers going, infotainment launching ballistic missiles, etc. The failure has related to the sway disconnect harness - CAN HI had grounded to the HVAC evaporator, thus pulling half the network to reference voltage. In other words, CAN LO was attempting to traffic, while HI was screaming like Yoko at the sky. A simple harness repair plus corrective at the harness routing, plus a wipe and relearn. Good as new. I wish you the best. EDIT: syntax, spelling

Having worked in the retail end of the car business I can tell you that good techs with good REAL diagnostic skills, as opposed to simple parts changers, are very difficult to find.

You sound like you truly understand this stuff. I got out of working on cars before CANs were a thing, so my knowledge of them is very rudimentary.

A friend of mine is one of those amazing techs. He was a Saab Master Technician. He and I worked together at the same Saab store for years. We would get borderline Lemon Law buyback cars trucked in from 500 miles away. These cars had been in to be repaired a number of times and Saab was close to having to buy the cars back.

Dealers in the NorthEast were instructed by their Service Reps to send the cars to Guilford Saab and to have this guy work on them.

I never saw anything stump him.

This guy was phenomenal. He was also given all the transmission and engine rebuilds. he could complete them in only 40% of book time and never had any come-backs.

I'm not sure why the industry isn't able to attract more guys like this. He was making great money. (80K in 1990) because he was so fast with no come-backs. He would get paid for like 90 hours per week.

 

[LiftedrubiconJT]

The network is crashing - the U codes are likely related to a singular root failure. When the network goes down, in your case in a spectacular fashion, every module that has message traffic on it will register a fail. In one instance, we had a rental unit (JLUR) literally go "insane"; lockers activating, wipers going, infotainment launching ballistic missiles, etc. The failure has related to the sway disconnect harness - CAN HI had grounded to the HVAC evaporator, thus pulling half the network to reference voltage. In other words, CAN LO was attempting to traffic, while HI was screaming like Yoko at the sky. A simple harness repair plus corrective at the harness routing, plus a wipe and relearn. Good as new. I wish you the best. EDIT: syntax, spelling

I saw on the Jeep Wrangler forum several People had an issue with the electric disconnect harness. I told the dealer to check that area but I’m not sure if they ever did. I know I tried several times to get my electric disconnect sway bar to disconnect and I couldn’t. Maybe there is an issue there

 

[Deleted member 22728]

As a general rule, when you have tons of network codes, it's a matter of process of elimination. Pull up a total vehicle wiring diagram for the JT you have (IIRC there's several floating around on the forums). The objective is to "shed" modules one at a time while monitoring the CAN; eventually you'll remove the affected module/circuit, knowing so by seeing a consistent digital waveform, or it'll flatline, or whatever. From there, you can reference the diagram as to what part you isolated, what modules are on that leg, and the physical locations. It's a procedure that is pretty basic and known in the tech community for network diagnostics. I use an old school two-channel scope, along with a breakout box (past the gate) for my tablet to monitor the datastream.

 

[WXman]

jeep sucks!!! Customer service sucks!!! Everything about jeep sucks. I have no idea how so many of you guys have owned so many of them. I’m 1 and done with jeep. Spend 50k plus on a vehicle to be let down. I never even got a change to take it off-roading and it still breaks. Been in 2 different dodge shops and still can’t figure out the issue. First dealership had it 15 days to give it back to me broke and 3 days later I take it to another dealership and it has been sitting there going on two weeks and no answer. Now that it’s been going on 30 days total in shop they are sending a Chrysler tech in Monday to look at it. I don’t even want it anymore I’m done and want to lemon it. Here in VA 30 days qualifies for lemon. I really hope anyone on the fence about buying a jeep product looks the other way and purchases something different

At first I thought this was an April Fool's post. But nope, the date says 4-8-21.

Wife and I have owned probably 15 or more Jeeps of all model years up to 2020 and all models. NEVER once had a major issue with any of them. In fact they're my favorite brand. I've had Toyota, Nissan, Ford, GM, etc. etc... I'd go Jeep over any of those.

Just because you got the unlucky draw, that doesn't mean everybody else does too.

 

[exfil offroad]

jeep sucks!!! Customer service sucks!!! Everything about jeep sucks. I have no idea how so many of you guys have owned so many of them. I’m 1 and done with jeep. Spend 50k plus on a vehicle to be let down. I never even got a change to take it off-roading and it still breaks. Been in 2 different dodge shops and still can’t figure out the issue. First dealership had it 15 days to give it back to me broke and 3 days later I take it to another dealership and it has been sitting there going on two weeks and no answer. Now that it’s been going on 30 days total in shop they are sending a Chrysler tech in Monday to look at it. I don’t even want it anymore I’m done and want to lemon it. Here in VA 30 days qualifies for lemon. I really hope anyone on the fence about buying a jeep product looks the other way and purchases something different

Give it another chance, sometimes this happens, even on a 250 g car. No manufacturer is exempt and that's true. If the next one is trash, ok. I doubt that will be the case, I've been super happy with mine, zero issues.

 

[Wruckus]

You will find lemons in every manufacturer. Even ones that are hand made. It's how they handle it is what keeps the customer. Fiat Chrysler is the worst when it comes to customer service. I had to call them out on social media daily with videos and tag every official page for all of their brands in North and South America to the point where they all blocked me before I actually got any resolution. My agreement sags i can't say what the outcome was but if you need a lemon law lawyer, I may have a contact for ya. LOL

 

[cecaa850]

As a general rule, when you have tons of network codes, it's a matter of process of elimination. Pull up a total vehicle wiring diagram for the JT you have (IIRC there's several floating around on the forums). The objective is to "shed" modules one at a time while monitoring the CAN; eventually you'll remove the affected module/circuit, knowing so by seeing a consistent digital waveform, or it'll flatline, or whatever. From there, you can reference the diagram as to what part you isolated, what modules are on that leg, and the physical locations. It's a procedure that is pretty basic and known in the tech community for network diagnostics. I use an old school two-channel scope, along with a breakout box (past the gate) for my tablet to monitor the datastream.

The process is easier now with the inclusion of STAR connectors. You can unplug them there as opposed to having to hunt down the physical location of each individual module. If the bus stays down it's pretty easy to diag. If it's intermittent, not so much.

 

[LostWoods]

I'm not sure why the industry isn't able to attract more guys like this. He was making great money. (80K in 1990) because he was so fast with no come-backs. He would get paid for like 90 hours per week.

Because great money is much, much harder to come by as a tech. The pay wasn't great, you were just able to flag a ton of hours (I typically averaged 60+ on a 5-day week). Now, extended warranties mean more crap is paid out at 60% of book rate and less gravy maintenance work from longer intervals means 90% of your tickets are warranty or single-issue work. I got out around 2010 and never looked back.

Not to mention that as a dealer tech, every big ticket item you get that might actually make you some money is always at risk of sales trying to swoop in on the customer and the dealership will always push for sales over service income.

 

[hickman785]

I've had 9 Jeeps. TJs, JKs and now a Gladiator. I've never had one single part break or fail. I've never had a recall. I have never had one thing go wrong with any of them. That is why I only buy Jeep. I buy for the reliability and capability.

 

[MoparDave]

All I can tell you is I had the same issue with my 2016 Charger....

Had it towed to the dealership....

Got it back and it happened 2 blocks From the dealership again...

Left it again....

They changed the battery in the rear and that solved the issue.

 

[Akgladiator]

All I can tell you is I had the same issue with my 2016 Charger....

Had it towed to the dealership....

Got it back and it happened 2 blocks From the dealership again...

Left it again....

They changed the battery in the rear and that solved the issue.

Either jeep is not managing quality control and their dealerships stupidities!

Wish all the trouble Jeep owners have their problems fixed!

 

[LiftedrubiconJT]

I don’t even know what to do anymore. Jeepcares calls me last week tells me a Chrysler tech is coming out to look at it after they get out of training. I stop by dealer to see how things are going and they tell me it’s their lead tech and he has been in training, not a Chrysler tech . I call jeepcares people out today when they called and they just freeze up and go silent. I ask them more info they tell me dealer is still working on it and trying to get it to duplicate problem which I don’t understand because when I went last Friday to pick it up it messed up in front of them. I tell them I’m going to get a lawyer and they tell me if I go that route jeepcares will stop helping and that I need to return my loaner. Jeepcares also told me dealer closed star case which I don’t understand either as my truck is still broke. Everything I suggested to dealer , check electric disconnect harness, check harness near passenger front tire, all ignored

 

[Mike the mechanic]

How many of you guys on here go to work and do not get paid? Well when you take your vehicle onto the dealership and the tech can not duplicate the problem to be able to diagnose and repair an issue we get paid a big fat 0. We can not afford to drive you car for 5 hours to get it to act up. An intermittent issue can be very hard to duplicate. Where you are having a communication issue not only could it be a harness, power, or ground connection, but and control module that communicates on the data line could have an intermittent internal failure causing the problem. Testing while the problem is not happening will show nothing. So again if you spend 3 hours testing components when the problem is not happening you find nothing and that is what you get paid. Also not telling the tech any and all mods you have done makes our job just that much harder. Well I'm done with my rant. Tired of people complaining about the techs at dealerships when 99% of the people complaining have never worked in a new car shop before. All of those free inspections are free because the techs are not paid to do them.

 

[LiftedrubiconJT]

How many of you guys on here go to work and do not get paid? Well when you take your vehicle onto the dealership and the tech can not duplicate the problem to be able to diagnose and repair an issue we get paid a big fat 0. We can not afford to drive you car for 5 hours to get it to act up. An intermittent issue can be very hard to duplicate. Where you are having a communication issue not only could it be a harness, power, or ground connection, but and control module that communicates on the data line could have an intermittent internal failure causing the problem. Testing while the problem is not happening will show nothing. So again if you spend 3 hours testing components when the problem is not happening you find nothing and that is what you get paid. Also not telling the tech any and all mods you have done makes our job just that much harder. Well I'm done with my rant. Tired of people complaining about the techs at dealerships when 99% of the people complaining have never worked in a new car shop before. All of those free inspections are free because the techs are not paid to do them.

I understand your point, but my point is almost everytime I would go to drive it it would act up, dealer had it a week and drove it 50 miles and said it never messed up once. I go to pick it up and it messes up the first 5 seconds I’m in it in front of the techs. They pull it in and tell me they got enough data to open a star case. Now they tell me it needs to mess up again, why would it need to mess up again when it has a light on and 50 plus codes?? So are you telling me that techs aren’t paid on the clock and only paid for work they do? You guys don’t get paid by the hour? How frustrating would you be if you purchased a new car and it sat and sat at the dealer? I think the real problem is they are more concerned about the oil changes and tire rotations . They don’t like warranty work.

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