Have had to replace run cap three times in the last two years

you probably wouldnt get an oem replacement unless thru rheem dealer or distributor ---multi reasons on cap failure --dirty condenser coils--fan ---weather-- environmental--power supply interruption --- and those are the correct caps https://www.justanswer.com/hvac/b4b4e-old-rheem-model-rahe-042jas-size-capacitor.html

Had nothing to do with any door,
last year & now it may be a different
problem

The gas cap was either good or not

What codes do you have?
How do you know what system set the MIL Lamp?

heater core that springs a leak repeatedly is the result of vibration and it is rubbing against something. Check all the locations in the plenum and firewall

This is what they call a 2 trip code. It takes two running times to set. Small leak is 98 % of the time gas cap not on tight enough. Three clicks minimum. Just reset the computer and see if it comes up again. For your year EVAP is not a big deal. Doesn't hurt fuel economy or performance.

If you are having no problems with the vehicle,then get a piece of tape and put over the light.Then you won't see the light on.

I believe you have a drain pump issue. Try removing the bottom front panel on your washer ,three small screws right at floor level. the drain pump will be right their in the middle up front.. lay down some towels or a pie pan to catch some water,remove the cap on the end of the drain pump. Clean out the cap/strainer and remove any visible gook in the pump,line up the marks on the cap and pump and reinstall..hopefully it was full of junk and your ok now, sometimes though the impeller in the pump gets damaged and it will run but not pump even if you have to replace its an easy fix Good Luck

I don't think the fan on it' own crates the problem. Could you find out what should be and what actually is the flow through it. If you needed <!-- MOJAIZBA.COM LINK CODE START --> <a href="http://mojaizba.com/convert-units-of-flow" title="Flow units converter page on mojaizba.com - Convert flow units online. Use the calculator for making conversions from one flow unit measure into another flow-volume amount between; acre foot per: acre-ft/day, hour acre-ft/hr, year acre-ft/yr, bar/day barrel Oil per day, hour bar/hr, minute bar/min, second bar/sec flow, cubic centimeter per day cm3 / day, hour cu cm/h, minute cm3/min, second cm3/sec flow, cubic foot feet per day ft3/d, hour ft3 / hr, minute ft3/min, second cuft/sec, cubic inch per day in3/day, hour in3 / hr, cubic inch per minute cu.in/min, in3/sec, cubed meter per day m3/day, hour cu m/h, minute m3/min, second m3 / sec, cubic yard per day yd3/day, hour cu yd / h, yd3 / min, cu-yd/sec, gallon US gal/day, gal/h, gal/min, gal/s, gallon UK per day gal/d, gal/hr, gal/minute, gal/sec, hundred cubic feet foot per day 100 cu-ft/day, 100-ft3/hr, hundred cubic foot per minute flow 100ft3/min, 100 cubed ft/sec, kilogram per day - Petrol kg/day, hour Gasoline kg/h, kg/min, kg/s, liter per day l/day, l/hr, l/min, l/sec, milliliter per day ml/d, ml/h, ml/min, ml/sec flow, ounce US per day oz/d, oz/h, oz/min, oz/s, ounce UK per day oz/day, oz/hr, ounces/min, oz/sec, pound per day - Petrol flow lb/day, Gasoline lb/hr, lb/min, lb/sec. USA – Imperial UK and Metric SI system units of flow. Buy the JavaScript JS and HTML code for this web flow converter tool application for your website." target="_blank">flow units converter</a> <!-- MOJAIZBA.COM LINK CODE END --> for a unit you'are comfortable with here is one we use if it's necessary. Let me know that...

Yes and use 35v caps ,also there is No DM moduel to be found and if you can find one they are $1,000.00

this is a very large problem with the gas caps on the threes. take the cap to the dealer and have them replaced the fuel filler pipe and the gas cap that is the only way to fix the problem. if you just replace the gas cap it will happen again.

you answered it yourself try new injectors