I just purchased the makita 2400 and im pleased with it so far, i did notice that some people say there is problems with the air filter on these and i saw one guy had changed to a charcoal filter and re routed its location. Is this a good idea or not?

this is leaking valve . you will need gaskets valve plate valves, valve seats .
Call 877-346-4815 they will help you the required parts.

copy and paste

https://www.ereplacementparts.com/makita-mac2400-25hp-1720rpm-air-compressor-parts-c-97_1547_7559.html


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Makita MAC2400 Owner Manual

here is the owners manual

It sounds like you are describing a misfire. What have you looked at so far? Please write back with as much details as possible. Even the small details are important. What are you working on (year, make, model, and engine size to start)? What have you tested, seen noticed, or repaired so far? Depending on the vehicle you may have an EGR failure, clogged fuel or air filter, piston ring or valve failure, vacuum leak, fuel pressure issue, timing, Cam or crank sensor issue, bad gas, or an ignition failure (spark-plugs, wires, or a coil).

You will need to replace Try this link
https://www.ereplacementparts.com/pressure-switch-p-72140.html?osCsid=frdsg98b14jq3r0rmjer0ev2s1

This battery has a known design defect that causes premature failure. The battery is still probably good, but the safety circuit n the battery spuriously locks it, due to a bug. Once locked, it won't charge in the Makita charger (flashing red and green lights). Makita knows about this problem but so far is not actively recalling the batteries. Makita will replace the pack if the charge count is under 150 (some people say 300?) regardless of warranty status, but you have to take or mail it to a Makita Service Center -- the dealers won't handle this unless it's in warranty.
http://www.makita.com/en-us/Modules/Service/ServiceCenters.aspx

If Makita won't fix it, you can try to repair it. If the red and green lights are flashing, the battery is probably locked and cannot be repaired in a way that will let it be charged in the Makita charger (but it can be charged in off brand chargers). Buy a clone charger on eBay for $60 and try it. If it charges, just use it, no repair needed.

Be aware that lithium batteries do lose capacity permanently at a rate of about 20% per year. So, 3-6 years is about the best battery life you can expect - from date of manufacture, so if it sat in the store a while that adds. Makita derates the cells to allow for some shelf life (down from 2400 Mah to 1500 Mah rating).

If the battery is weak, and only gives brief usage, you can replace some of or all of the cells in the battery. These are expensive and worth repairing. See this video:
http://www.youtube.com/watch?v=Z5taguEdlkY

If just 1 or 2 cells are weak, you can replace them with the same Sony 18650 size 2400 Mah capacity battery, green sleeve. The Sony's are not sold retail, and are hard to find other than from another Makita pack or from some laptop packs. If more are weak, you're better off just replacing all of them with new 18650 2400 Mah (or higher) batteries with tabs. Look for Tenergy or other quality brand.

Hope that helps.

yes

Send it back Right now do not keep iT NO IT SHOULD NOT BE LEAKING LIKE THAT Paul

Usually you cannot adjust the cut out pressure of the tank/motor itself, this is why they have regulators, which regulates the pressure flowing down the air lines (regulators like these dont regulate actual tank pressure cutout). To regulate air flow using the regulator knob, you actually have to have air flowing through the hose while you make the regulator/pressure adjustments as regulators regulate pressure DOWNSTREAM from the actual regulator itself.. so air flowing through is a must. Attach an air blower or something similar and let air start flowing through the hose. Now turn your regulator knob in the "-" direction to decrease regulated pressure. It is best to bring pressure all the way down to "0" first, then open the regulator up (by turning to the "+" side) and pressure will rise until you get to the desired pressure needed for the air tool in use. The tank pressure will still be between 80-125 PSI as the motor regulates and keeps the pressure in the tank between these values automatically, but your line/hose air flow pressure will remain at the regulated pressure (say 40 PSI or whatever you set using the regulator knob).

Hope that helps and makes sense.

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I cleaned the fuel screen located on the unit and replaced the filter on the external fuel tank. The external filter can freeze if it accumulates enough water and the temp is cold enough, or it can just get full of debris. I also unplugged the 2400 for 30 min to let the factory preset settings come back. Filter(s) caused the e14 error, preset settings cured the e13 error caused by me fooling with the start stop function so much. Thanks for the help!