Eliott

I have a 2003 Mack CH613, I was trying to check my transmission fluid, I was told that on a 13 speed, I would find it on the driver's side about half way up. They told me it would be a 3/8 male or female plug. I found something different, not sure if this is the plug or not, I went to make Mack and got a diagram, and it matches the placement but looks different. I will upload the pictures below, if any one could help me out, I will appreciate it.

Thank you for your help I'll start by changing one, and cleaning the others, see what happens

I would not mind spending some money on EUPs if that's the problem, but if all the EUP were bad , would the truck even run?

Hello, looking for some help with my 2003 Mack CH613 E7 engine, I have a lightning bolt displayed on the dash, and I'm getting a code of, 8-1,8-2,8-3,8-4,8-5,8-6, could all the EUPs be bad on the truck? The truck runs good ,no idle issues, I was gonna replaced all until I found out it around $800-$1,000 per Unit pump, thanks.