Ram Truck Service for 1500, Heavy Duty, and ProMaster

Mostly half-ton pickups and vans, with heavy-duty trucks by confirmation.

• Ram 1500: Hemi V8, V6, and EcoDiesel versions, used for work and family.
• Ram 2500 and 3500: gas and diesel heavy-duty trucks; call (909) 608-7699 to confirm before bringing one in.
• ProMaster: front-wheel-drive cargo vans used by trades and delivery drivers.
• Older Ram and Dodge trucks with high miles.

Ram shares engineering with Jeep and other Stellantis brands; see domestic vehicles.

Oil quality and level matter on the Hemi. Many Hemi engines use cylinder deactivation, which depends on clean oil to work smoothly. Use the grade and Chrysler material standard in your manual and change it on schedule, or sooner if you tow.

Some 1500s also have eTorque, a mild-hybrid system with a 48-volt battery and a motor-generator that replaces the alternator. It helps with stop-start and smooth acceleration. We check the 12-volt battery and belt system, and we treat eTorque component repairs with care, sending them out when they need specialist tools.

If you hear a tick or get a misfire code, book a check engine light diagnostic early.

By inspecting the air springs, lines, compressor, and height sensors, and by putting the system in the correct mode before lifting. Many Ram 1500s have four-corner air suspension that raises and lowers the truck. Lifting it without the right setting can confuse the system.

Signs of an air suspension problem:

• One corner sits low after parking
• Compressor runs often or loudly
• Warning message on the dash
• Truck will not change ride height

We diagnose the leak or fault and give you a written estimate. See suspension, shocks, and struts.

Tow rating for your exact build, payload on the door label, hitch and wiring, brake controller, and tires. Rams can have very different tow ratings based on engine, axle ratio, and cab.

The towing and hauling page walks through a full pre-trip check.

Front brakes and front tires, since the ProMaster is front-wheel drive and carries weight over the front axle when the cargo area is empty and in the rear when loaded. Work vans also stack up miles and idle time.

We set up service by mileage, keep records by unit number for businesses, and check brakes, tires, and suspension on each visit. See work vans and cargo vans and fleet vehicles for more.

Load comes first. A Ram 1500 often leaves the factory on passenger-type tires, while heavy-duty 2500 and 3500 trucks use LT tires with a higher load range. Swapping to a tire with a lower load rating than the placard lists is not safe, no matter how good it looks.

Other fitment points:

• Leveling kits and larger tires: change speedometer reading and can rub at full lock.
• Dual rear wheels: inner and outer tires need matched tread and pressure.
• TPMS: some heavy-duty trucks use separate pressure settings for loaded and empty use; check your manual.

We check load range, date codes, and pressure before any tow.

Heavy trucks wear front brakes, steering joints, and ball joints the fastest. Heavy-duty Rams with a solid front axle can develop a violent front-end shake after bumps when track bar or steering parts loosen, much like a Wrangler.

Wear points we check on a Ram:

1. Front pads and rotors, which carry most of the stopping load.
2. Tie rod ends and the drag link on heavy-duty trucks.
3. The track bar and its bushings on solid-axle trucks.
4. Steering damper condition, without treating it as a cure.
5. Rear leaf springs and shackles on trucks that haul.

To prepare, tell us your usual trailer weight, hitch type, and how often you tow. Photos of any warning messages help too.