Country Coach Suspension Issues re the Air Spring

Troubleshooting Country Coach Suspension Issues specific to the Air Spring

There is very important information found in every Country Coach User’s Guide regarding your suspension system on the DynoMax chassis, including 1,000 miles, 6,000 miles, and 25,000 miles lists of what to inspect. In addition there are some valuable quick troubleshooting answers to common problems you may experience with your suspension listed in that user's guide.  The  Troubleshooting list is extensive. Here I re-read just  a couple of them related to air springs as read in the CC owner's DynoMax chassis manual. (Refer to your coach's chassis manual for up to date info on your chassis.)

My Air Spring is Flat or Slow to Fill:

Possible Causes:

a.       Inadequate air pressure to suspension.  Remedy? Check the air pressure gauge and build air pressure to 75psi. Check all connections.

b.      Clogged air filter. Remedy? Repair or replace

c.       Defective air brake protection valve. The fix? Replace

d.      Height Control Valve clogged/non functioning. The Fix? Repair or replace.

e.      Air leakage from the suspension air system or the air brake system. Listen for leakage due to loose fittings, or damaged air lines, air springs, brake actuators or control valves. Tigehn loose fittings and/or replace worm or damaged parts.

f.        Air leakage between the height control valve and the air springs. Listen for leakage due to loose or damaged air lines. Tighten loose fittings and/or replace damaged airlines.

g.       Air springs leaking air. The remedy? Visually inspect the air springs for leaks resulting from damage, wear, or terioration. Replace any leaking air spring.

My Air Spring is Flat on one side of the coach only:

Possible Causes:

a.       Bent, broken or disconnected height control valve linkage. Visually inspect the linkage for damaged or loose parts. Reconnect loose linkage parts and replace defective parts.

b.      Height control valve is out of adjustment. Disconnect the height control valve actuating lever from its linkage. Move the lever upward. If the air spring then inflates, the height control valves need adjustment (there is a Ride Height Adjustment section In every Country Coach owner’s guide that came with your coach).

c.       Inoperative height control. If movement of the actuating lever in the above step fails to inflate the air spring or continually leaks air through the exhaust port in the neutral position, the height control valve is defective and needs to be replaced.

d.      Damaged height control valve. Visually inspect for damage to this valve linkage and actuating levers. Repair or replace damaged linkage parts.

My Motorhome leans due to unequal inflation of air springs:

Possible Causes:

a.       Loose or missing height control valve bolts or adjustment springs are a possible cause. Visually inspect for loose or missing height control valve mounting bolts and adjustment lock nuts. Replace anything missing. Then adjust height control valves and tighten connectives.

b.      Another possible cause: Height control valve is out of adjustment. Readjust the height control valve based on the “Ride Height Adjustment” instructions in your coach User’s guide.

Country Coach user’s guides actually feature quite extensive lists of troubleshooting tips covering a myriad assortment of suspension questions, possible causes and remedies. Be sure to take a few moments for a refresher on that big beautiful machine you choose to drive. Many service centers on the Country Coach Friends Inc club partner list are expert at servicing the DynoMax chassis. Among them are Premier RV Services (www.premierrvservices.com), Oregon Motorcoach Center (www.oregonmotorcoachcenter.com) and Country Coach (www.countrycoach.com).