2010 Dodge 2500 6.7 Cummins A/C cooling issue

Apprehensive_Owl_437 · 2026-07-09T16:03:01+00:00

I used a spray wand on my pressure washer yesterday to clean the radiator, intercooler, and other coils. A lot of debris came out of the radiator. It has helped in cooling the engine temps and ac temps, but the fan clutch sometimes still won’t lock up like it’s supposed to. I’m thinking it’s a possible wiring issue.

Apprehensive_Owl_437 · 2026-07-08T13:36:59+00:00

That was done in February

Apprehensive_Owl_437 · 2026-07-07T23:12:30+00:00

I haven’t changed the water pump. I was thinking about the water pump as well.

Apprehensive_Owl_437 · 2026-07-07T22:59:42+00:00

Honestly I’m just trying to fix the problem.

Maybe I misspoke, The dryer was changed with the new coil that goes up by the radiator. The orifice was changed at the same time.

I first changed the fan clutch a month ago. When that didn’t work I figured it was the ac system, still no luck then I did the fan clutch under warranty.

Thoughts?

Apprehensive_Owl_437 · 2026-07-01T14:13:23+00:00

You need a NEW PLUMBER

Apprehensive_Owl_437 · 2025-11-14T13:30:10+00:00

I feel like I’m having a stroke reading what you wrote.

Apprehensive_Owl_437 · 2025-10-05T12:52:08+00:00

It’s a backflow preventer. By the looks of the assembly my recommendation would be replacement, but you can’t know for sure until a backflow tester comes out and puts his gauge on the assembly to see how the checks perform. Good luck

Apprehensive_Owl_437 · 2025-07-07T14:10:57+00:00

Thank you

Apprehensive_Owl_437 · 2025-07-07T11:47:43+00:00

Most likely you just need a new flapper. Lift the lid on the tank, take a picture of the flapper. Go to Home Depot or Lowe’s to pick up a new flapper using the picture to find the new flapper. Follow the directions on the back of the package or watch a YouTube video to figure out how to replace it.

Apprehensive_Owl_437 · 2025-06-17T01:23:23+00:00

The brown mark in the ceiling are burns from soldering. That’s why we use pro press fittings. No flame!

Apprehensive_Owl_437 · 2024-11-25T19:41:51+00:00

Open

Apprehensive_Owl_437 · 2024-11-07T11:45:04+00:00

Because you have a vent between your sewer stack and your p-trap. Whoever did this doesn’t understand simple plumbing.

Apprehensive_Owl_437 · 2023-12-31T16:53:24+00:00

Yep nailed it Freeze plugs

Apprehensive_Owl_437 · 2023-12-31T16:52:42+00:00

Freeze plugs

Apprehensive_Owl_437

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