Cali6.5
Member
Hey guys, haven't been around in a bit. I sold my 6.5 and bought an LML and am having some problems with the emissions gear on it. It started with a low coolant level alarm but the tank was full, then the exhaust fluid quality alarm. I decided to take it to the dealer when it went to 55 mph restriction and then on the three hour drive home at 55 I lost butt loads of power (like 10mph going up a very small hill). I took it to the dealer and they got a bad EGT (hence the limp mode), and one or two NOX sensors that were replaced and then a run through the regen cycle and test the fluid quality. All good, for 2 days and then I got a check engine light and it turned out to be a catalytic converter alarm. The mechanic noticed that the coolant was low since he topped it off 2 days earlier and they concluded that coolant was leaking out of the EGR into the exhaust. An EGR cooler installed and 4 days later I got another service exhaust fluid alarm. Now they are saying that the sensors in the DEF tank are bad.
When the mechanic said that he tested the EGR cooler by pressurizing the coolant side and then capping it and sinking it in a bucket of water I got skeptical. There are a lot of nooks and crannies in the cooler for air to get trapped and slowly percolate out over time therefore looking like a leak. I took the EGR to work and capped on side, filled with water and put 40 PSI on the other side with a gauge and plugged it and it has been holding 42 psi for 2 days now. Is it just me or are they just replacing parts. It was $800 the first trip and $1600 2 days later. I cant wait to see what this trip is going to be to replace everything in the DEF tank. I have had the feeling since this started that it was a computer issue because I got sensors all over going bad. Sensor that don't have anything to do with each other.
Anybody have any input or experience that could lead me in the right direction? Any aftermarket equipment for CA smog legal rigs out there? Can I weld up the inside of the EGR cooler and block flow or will the computer know it?
When the mechanic said that he tested the EGR cooler by pressurizing the coolant side and then capping it and sinking it in a bucket of water I got skeptical. There are a lot of nooks and crannies in the cooler for air to get trapped and slowly percolate out over time therefore looking like a leak. I took the EGR to work and capped on side, filled with water and put 40 PSI on the other side with a gauge and plugged it and it has been holding 42 psi for 2 days now. Is it just me or are they just replacing parts. It was $800 the first trip and $1600 2 days later. I cant wait to see what this trip is going to be to replace everything in the DEF tank. I have had the feeling since this started that it was a computer issue because I got sensors all over going bad. Sensor that don't have anything to do with each other.
Anybody have any input or experience that could lead me in the right direction? Any aftermarket equipment for CA smog legal rigs out there? Can I weld up the inside of the EGR cooler and block flow or will the computer know it?