T25 torx
The PNDB has failed (the blinking box on the firewall). Check all connections. If they are ok, you will need a new pndb
Disconnect the 21 pin mcm connector and measure resistance between pins 19 and 13. Should have 60 ohms. You have two terminating resistors. One in...
The new chassis module most likely crashed the j1587 databus. Cut the orange and green twisted pair going to the chassis module. There is no...
Sounds like your PT CAN is shorting out somewhere. Check the harness above the trans, going from the ACM to the one box. The harnesses like to...
Did he clean the bore behind the fuel doser valve housing? Are the fuel filters new? What is your fuel pressure? (taken by a mechanical gauge at...
I went to home depot and got about 4' of clear line. Then took a stratoflex fitting, and unscrewed it. Then put the fitting in the clear line...
I would pull all six and re-ring them, and install the graphite washer and larger secondary o ring. If you are getting air bubbles in the davco,...
What kind of engine?
If you have j1587 wires going to the chassis module, dont forget to cut the two wires out. There is a service bulletin out there because the new...
Qualitytruck is right. Check the signal wire coming out of pin 4 on the ecm oem connector. Like he said, usually at the bend, there will be...
4364 is for nox conversion. Could be a number of things. NOX sensors, scr catalyst, def pressure/dosing issue. I would get it looked at asap,...
Do you know which wire number you are losing voltage on?
Have them check ddec reports and see max engine speed. Did they change fuel filters? I am going to guess that they changed the fuel filters, did...
How about the hose going from the intake manifold to air compressor?
Your j1587 is shorting out
Dont judge me on asking a strange question, but does the espar work with the key off, and the driver side door open, but turn off when you shut...
Year, make, model?
Tell them to go to parameters, then change the progressive shift to a higher rpm
Mounted behind the bumper, right side. Check the sensor voltage. Should be 5v. The sensor is connected to the sam cab and gets translated...